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2017-09-21perf trace beauty madvise: Generate 'behavior' string table from kernel headersArnaldo Carvalho de Melo3-26/+31
This is one more case where the way that syscall parameter values are defined in kernel headers are easy to parse using a shell script that will then generate the string table that gets used by the madvise 'behaviour' argument beautifier. This way as soon as the header syncronization mechanism in perf's build system detects a change in a copy of a kernel ABI header and that file is syncronized, we get 'perf trace' updated automagically. So, when we syncronize this: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h' We'll get these: #define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */ #define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */ Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-dolb0ghds4ui7wc1npgkchvc@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-21perf tests: Remove Intel CQM perf testXiaochen Shen4-133/+0
Intel CQM perf test is obsolete for perf PMU code has been removed in commit c39a0e2c8850 ("x86/perf/cqm: Wipe out perf based cqm"). Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Pei P Jia <pei.p.jia@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com> Link: http://lkml.kernel.org/r/1505797057-16300-1-git-send-email-xiaochen.shen@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-21perf stat: Fix adding multiple event groupsAndi Kleen1-3/+4
The -M metric group parser threw away the events of earlier groups when multiple groups were specified. Fix this here by not overwriting the string incorrectly. Now this works correctly: % perf stat -M Summary,SMT --metric-only -a sleep 1 Performance counter stats for 'system wide': Instructions CPI CLKS CPU_Utilization GFLOPs SMT_2T_Utilization SMT_2T_Utilization Kernel_Utilization CoreIPC CORE_CLKS 900907376.0 2.7 2398954144.0 0.1 0.0 0.2 0.2 0.1 0.4 2080822855.5 while previously it would only show the SMT metrics. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170914205735.18431-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-18perf tools: Fix leaking rec_argv in error casesMartin Kepplinger4-1/+6
Let's free the allocated rec_argv in case we return early, in order to avoid leaking memory. This adds free() at a few very similar places across the tree where it was missing. Signed-off-by: Martin Kepplinger <martink@posteo.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Martin kepplinger <martink@posteo.de> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170913191419.29806-1-martink@posteo.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-18perf pmu: Improve error messages for missing PMUsAndi Kleen3-7/+16
When a PMU is missing print a better error message mentioning the missing PMU. % mkdir empty % mount --bind empty /sys/devices/msr % perf stat -M Summary true event syntax error: '{inst_retired.any,cycles}:W,{cpu_clk_unhalted.thread}:W,{inst_retired.any}:W,{cpu_clk_unhalted.ref_tsc,msr/tsc/}:W,{fp_comp_ops_exe.sse_scalar..' \___ Cannot find PMU `msr'. Missing kernel support? It still cannot find the right column for aliases, but it's already a vast improvement. v2: Check asprintf Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170913215006.32222-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-18perf machine: Optimize a bit the machine__findnew_thread() methodsArnaldo Carvalho de Melo1-3/+3
In some cases we already have calculated the hash bucket, so reuse it. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@intel.com> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-800zehjsyy03er4s4jf0e99v@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-18perf machine: Use hashtable for machine threadsKan Liang4-66/+117
To process any events, it needs to find the thread in the machine first. The machine maintains a rb tree to store all threads. The rb tree is protected by a rw lock. It is not a problem for current perf which serially processing events. However, it will have scalability performance issue to process events in parallel, especially on a heavy load system which have many threads. Introduce a hashtable to divide the big rb tree into many samll rb tree for threads. The index is thread id % hashtable size. It can reduce the lock contention. Committer notes: Renamed some variables and function names to reduce semantic confusion: 'struct threads' pointers: thread -> threads threads hastable index: tid -> hash_bucket struct threads *machine__thread() -> machine__threads() Cast tid to (unsigned int) to handle -1 in machine__threads() (Kan Liang) Signed-off-by: Kan Liang <kan.liang@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1505096603-215017-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Skylake serverAndi Kleen1-0/+182
Add JSON metrics for Skylake server Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Broadwell DEAndi Kleen1-0/+164
Add JSON metrics for Broadwell DE Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Broadwell ServerAndi Kleen1-0/+164
Add JSON metrics for Broadwell Server. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Haswell EPAndi Kleen1-0/+158
Add JSON metrics for Haswell EP. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Ivy TownAndi Kleen1-0/+164
Add JSON metrics for Ivy Town. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for HaswellAndi Kleen1-0/+158
Add JSON metrics for Haswell. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Ivy BridgeAndi Kleen1-0/+164
Add JSON metrics for Ivy Bridge. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Sandy Bridge EPAndi Kleen1-0/+140
Add JSON metrics for Sandy Bridge EP. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170908180133.GA20128@tassilo.jf.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for Sandy BridgeAndi Kleen1-0/+140
Add JSON metrics for Sandy Bridge. Committer testing: # grep "model name" /proc/cpuinfo | head -1 model name : Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz # perf list metricgroup List of pre-defined events (to be used in -e): Metric Groups: DSB FLOPS Frontend Frontend_Bandwidth Pipeline Ports_Utilization Power SMT Summary TopDownL1 # perf stat -M Power --metric-only -a sleep 1 Performance counter stats for 'system wide': Turbo_Utilization C3_Core_Residency C6_Core_Residency C7_Core_Residency C2_Pkg_Residency C3_Pkg_Residency C6_Pkg_Residency C7_Pkg_Residency 0.8 0.0 98.1 0.0 0.0 0.0 23.4 0.0 1.001153658 seconds time elapsed # perf stat -v -M Power --metric-only -a sleep 1 Using CPUID GenuineIntel-6-2A metric expr cpu_clk_unhalted.thread / cpu_clk_unhalted.ref_tsc for Turbo_Utilization found event cpu_clk_unhalted.thread found event cpu_clk_unhalted.ref_tsc metric expr (cstate_core@c3\-residency@ / msr@tsc@) * 100 for C3_Core_Residency found event cstate_core/c3-residency/ found event msr/tsc/ metric expr (cstate_core@c6\-residency@ / msr@tsc@) * 100 for C6_Core_Residency found event cstate_core/c6-residency/ found event msr/tsc/ metric expr (cstate_core@c7\-residency@ / msr@tsc@) * 100 for C7_Core_Residency found event cstate_core/c7-residency/ found event msr/tsc/ metric expr (cstate_pkg@c2\-residency@ / msr@tsc@) * 100 for C2_Pkg_Residency found event cstate_pkg/c2-residency/ found event msr/tsc/ metric expr (cstate_pkg@c3\-residency@ / msr@tsc@) * 100 for C3_Pkg_Residency found event cstate_pkg/c3-residency/ found event msr/tsc/ metric expr (cstate_pkg@c6\-residency@ / msr@tsc@) * 100 for C6_Pkg_Residency found event cstate_pkg/c6-residency/ found event msr/tsc/ metric expr (cstate_pkg@c7\-residency@ / msr@tsc@) * 100 for C7_Pkg_Residency found event cstate_pkg/c7-residency/ found event msr/tsc/ adding {cpu_clk_unhalted.thread,cpu_clk_unhalted.ref_tsc}:W,{cstate_core/c3-residency/,msr/tsc/}:W,{cstate_core/c6-residency/,msr/tsc/}:W,{cstate_core/c7-residency/,msr/tsc/}:W,{cstate_pkg/c2-residency/,msr/tsc/}:W,{cstate_pkg/c3-residency/,msr/tsc/}:W,{cstate_pkg/c6-residency/,msr/tsc/}:W,{cstate_pkg/c7-residency/,msr/tsc/}:W cpu_clk_unhalted.thread -> cpu/event=0x3c/ cpu_clk_unhalted.ref_tsc -> cpu/umask=0x3,period=2000003,event=0/ Weak group for cstate_pkg/c2-residency//2 failed Weak group for cstate_pkg/c3-residency//2 failed Weak group for cstate_pkg/c6-residency//2 failed Weak group for cstate_pkg/c7-residency//2 failed cpu_clk_unhalted.thread: 5564185 4002833569 4002833569 cpu_clk_unhalted.ref_tsc: 7325424 4002833569 4002833569 cstate_core/c3-residency/: 68293 4003027101 4003027101 msr/tsc/: 12451294472 4003027101 4003027101 cstate_core/c6-residency/: 12238830163 4003260984 4003260984 msr/tsc/: 12452017806 4003260984 4003260984 cstate_core/c7-residency/: 0 4003489648 4003489648 msr/tsc/: 12452725162 4003489648 4003489648 cstate_pkg/c2-residency/: 1830054 1000913138 1000913138 msr/tsc/: 12453441079 4003717513 4003717513 cstate_pkg/c3-residency/: 0 1000973570 1000973570 msr/tsc/: 12454177865 4003954758 4003954758 cstate_pkg/c6-residency/: 2940448859 1001032370 1001032370 msr/tsc/: 12454833890 4004166118 4004166118 cstate_pkg/c7-residency/: 0 1001049818 1001049818 msr/tsc/: 12454919470 4004194204 4004194204 Performance counter stats for 'system wide': Turbo_Utilization C3_Core_Residency C6_Core_Residency C7_Core_Residency C2_Pkg_Residency C3_Pkg_Residency C6_Pkg_Residency C7_Pkg_Residency 0.8 0.0 98.3 0.0 0.0 0.0 23.6 0.0 1.001126519 seconds time elapsed # Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170905195235.GW2482@two.firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for SkylakeAndi Kleen1-0/+164
Add JSON metrics for Skylake. Committer testing: # grep "model name" /proc/cpuinfo | head -1 model name : Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz # uname -a Linux seventh 4.12.0-rc6+ #1 SMP Fri Jun 30 16:40:55 -03 2017 x86_64 x86_64 x86_64 GNU/Linux # perf stat --metric-only -M Summary -a sleep 1 Performance counter stats for 'system wide': Instructions CPI CLKS CPU_Utilization GFLOPs SMT_2T_Utilization Kernel_Utilization 34021097.0 0.0 119424171.0 0.0 0.0 0.0 0.0 1.001001793 seconds time elapsed # perf list metricgroup List of pre-defined events (to be used in -e): Metric Groups: DSB FLOPS Frontend Frontend_Bandwidth Memory_BW Memory_Bound Memory_Lat Pipeline Ports_Utilization Power SMT Summary TLB TopDownL1 Unknown_Branches # perf stat --metric-only -M Ports_Utilization -a sleep 1 Performance counter stats for 'system wide': ILP 1475828.0 1.000688547 seconds time elapsed # perf stat -v --metric-only -M Ports_Utilization -a sleep 1 Using CPUID GenuineIntel-6-9E metric expr uops_executed.thread / ( uops_executed.core_cycles_ge_1 / 2) if #smt_on else uops_executed.core_cycles_ge_1 for ILP found event uops_executed.thread found event uops_executed.core_cycles_ge_1 adding {uops_executed.thread,uops_executed.core_cycles_ge_1}:W uops_executed.thread -> cpu/umask=0x1,period=2000003,event=0xb1/ uops_executed.core_cycles_ge_1 -> cpu/umask=0x2,period=2000003,cmask=1,event=0xb1/ uops_executed.thread: 8115271 4002547654 4002547654 uops_executed.core_cycles_ge_1: 3282969 4002547654 4002547654 Performance counter stats for 'system wide': ILP 3282969.0 1.000719870 seconds time elapsed # Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170905195235.GW2482@two.firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Add JSON metrics for BroadwellAndi Kleen1-0/+164
Add JSON metrics for Broadwell. Commiter testing: # uname -a Linux jouet 4.13.0-rc7+ #3 SMP Sat Sep 2 09:04:44 -03 2017 x86_64 x86_64 x86_64 GNU/Linux # grep "model name" /proc/cpuinfo | head -1 model name : Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz # perf list metricgroup List of pre-defined events (to be used in -e): Metric Groups: DSB FLOPS Frontend Frontend_Bandwidth Memory_BW Memory_Bound Memory_Lat Pipeline Ports_Utilization Power SMT Summary TLB TopDownL1 Unknown_Branches # perf stat -M Power --metric-only -a sleep 1 Performance counter stats for 'system wide': Turbo_Utilization C3_Core_Residency C6_Core_Residency C7_Core_Residency C2_Pkg_Residency C3_Pkg_Residency C6_Pkg_Residency C7_Pkg_Residency 1.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.003502904 seconds time elapsed # # perf stat -M Memory_BW --metric-only -a sleep 1 Performance counter stats for 'system wide': MLP 1.7 1.001364525 seconds time elapsed # # perf stat -M TLB --metric-only -a sleep 1 Performance counter stats for 'system wide': Page_Walks_Utilization 0.1 1.005962198 seconds time elapsed # # perf stat -M Summary --metric-only -a sleep 1 Performance counter stats for 'system wide': Instructions CPI CLKS CPU_Utilization GFLOPs SMT_2T_Utilization Kernel_Utilization 7281856697.0 0.0 11150898087.0 1.0 0.0 1.0 0.7 1.012134025 seconds time elapsed # Running in verbose mode shows which counters and expressions are being used: # perf stat -v -M Summary --metric-only -a sleep 1 Using CPUID GenuineIntel-6-3D metric expr 1 / inst_retired.any / cycles for CPI found event inst_retired.any found event cycles metric expr cpu_clk_unhalted.thread for CLKS found event cpu_clk_unhalted.thread metric expr inst_retired.any for Instructions found event inst_retired.any metric expr cpu_clk_unhalted.ref_tsc / msr@tsc@ for CPU_Utilization found event cpu_clk_unhalted.ref_tsc found event msr/tsc/ metric expr ( 1*( fp_arith_inst_retired.scalar_single + fp_arith_inst_retired.scalar_double ) + 2* fp_arith_inst_retired.128b_packed_double + 4*( fp_arith_inst_retired.128b_packed_single + fp_arith_inst_retired.256b_packed_double ) + 8* fp_arith_inst_retired.256b_packed_single ) / 1000000000 / duration_time for GFLOPs found event fp_arith_inst_retired.scalar_single found event fp_arith_inst_retired.scalar_double found event fp_arith_inst_retired.128b_packed_double found event fp_arith_inst_retired.128b_packed_single found event fp_arith_inst_retired.256b_packed_double found event fp_arith_inst_retired.256b_packed_single found event duration_time metric expr 1 - cpu_clk_thread_unhalted.one_thread_active / ( cpu_clk_thread_unhalted.ref_xclk_any / 2 ) if #smt_on else 0 for SMT_2T_Utilization found event cpu_clk_thread_unhalted.one_thread_active found event cpu_clk_thread_unhalted.ref_xclk_any metric expr cpu_clk_unhalted.ref_tsc:u / cpu_clk_unhalted.ref_tsc for Kernel_Utilization found event cpu_clk_unhalted.ref_tsc:u found event cpu_clk_unhalted.ref_tsc adding {inst_retired.any,cycles}:W,{cpu_clk_unhalted.thread}:W,{inst_retired.any}:W,{cpu_clk_unhalted.ref_tsc,msr/tsc/}:W,{fp_arith_inst_retired.scalar_single,fp_arith_inst_retired.scalar_double,fp_arith_inst_retired.128b_packed_double,fp_arith_inst_retired.128b_packed_single,fp_arith_inst_retired.256b_packed_double,fp_arith_inst_retired.256b_packed_single,duration_time}:W,{cpu_clk_thread_unhalted.one_thread_active,cpu_clk_thread_unhalted.ref_xclk_any}:W,{cpu_clk_unhalted.ref_tsc:u,cpu_clk_unhalted.ref_tsc}:W inst_retired.any -> cpu/event=0xc0/ cpu_clk_unhalted.thread -> cpu/event=0x3c/ inst_retired.any -> cpu/event=0xc0/ cpu_clk_unhalted.ref_tsc -> cpu/umask=0x3,period=2000003,event=0/ fp_arith_inst_retired.scalar_single -> cpu/umask=0x2,period=2000003,event=0xc7/ fp_arith_inst_retired.scalar_double -> cpu/umask=0x1,period=2000003,event=0xc7/ fp_arith_inst_retired.128b_packed_double -> cpu/umask=0x4,period=2000003,event=0xc7/ fp_arith_inst_retired.128b_packed_single -> cpu/umask=0x8,period=2000003,event=0xc7/ fp_arith_inst_retired.256b_packed_double -> cpu/umask=0x10,period=2000003,event=0xc7/ fp_arith_inst_retired.256b_packed_single -> cpu/umask=0x20,period=2000003,event=0xc7/ cpu_clk_thread_unhalted.one_thread_active -> cpu/umask=0x2,period=2000003,event=0x3c/ cpu_clk_thread_unhalted.ref_xclk_any -> cpu/umask=0x1,any=1,period=2000003,event=0x3c/ cpu_clk_unhalted.ref_tsc -> cpu/umask=0x3,period=2000003,event=0/ cpu_clk_unhalted.ref_tsc -> cpu/umask=0x3,period=2000003,event=0/ Weak group for fp_arith_inst_retired.scalar_single/7 failed Weak group for cpu_clk_unhalted.ref_tsc:u/2 failed inst_retired.any: 8704146437 4026374016 619883741 cycles: 11180800018 4026374016 619883741 cpu_clk_unhalted.thread: 11140030295 4026323772 931621933 inst_retired.any: 8643115117 4026260510 1243595906 cpu_clk_unhalted.ref_tsc: 10201638510 4026184297 1247351077 msr/tsc/: 10378022785 4026184297 1247351077 fp_arith_inst_retired.scalar_single: 134697 4026102728 1559210545 fp_arith_inst_retired.scalar_double: 274339 4026007348 1870014984 fp_arith_inst_retired.128b_packed_double: 1639 4025886054 1866736918 fp_arith_inst_retired.128b_packed_single: 0 4025776614 2175106569 fp_arith_inst_retired.256b_packed_double: 0 4025681734 1235551129 fp_arith_inst_retired.256b_packed_single: 0 4025582962 1232398454 duration_time: 0 4025552913 4025552913 cpu_clk_thread_unhalted.one_thread_active: 10505 4025474649 923893076 cpu_clk_thread_unhalted.ref_xclk_any: 394992110 4025474649 923893076 cpu_clk_unhalted.ref_tsc:u: 5341421014 4025360315 1231634198 cpu_clk_unhalted.ref_tsc: 10258278508 4025252611 307909362 Performance counter stats for 'system wide': Instructions CPI CLKS CPU_Utilization GFLOPs SMT_2T_Utilization Kernel_Utilization 8704146437.0 0.0 11140030295.0 1.0 0.0 1.0 0.5 1.006783654 seconds time elapsed # Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20170905195235.GW2482@two.firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Fall weak group back even for EBADFAndi Kleen1-1/+1
It's not possible to run a package event and a per cpu event in the same group. This is used by some of the power metrics. They work correctly when not using a group. Normally weak groups should handle that, but in this case EBADF is returned instead of the normal EINVAL. $ strace -e perf_event_open ./perf stat -v -e '{cstate_pkg/c2-residency/,msr/tsc/}:W' -a sleep 1 Using CPUID GenuineIntel-6-3E perf_event_open({type=0x17 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, -1, PERF_FLAG_FD_CLOEXEC) = -1 EINVAL (Invalid argument) perf_event_open({type=0x17 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, -1, 0) = -1 EINVAL (Invalid argument) perf_event_open({type=0x17 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, -1, 0) = -1 EINVAL (Invalid argument) perf_event_open({type=0x17 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, -1, 0) = -1 EINVAL (Invalid argument) perf_event_open({type=0x17 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, -1, 0) = 3 perf_event_open({type=0x7 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 0, 3, 0) = 4 perf_event_open({type=0x7 /* PERF_TYPE_??? */, size=PERF_ATTR_SIZE_VER5, config=0, ...}, -1, 1, 0, 0) = -1 EBADF (Bad file descriptor) and perf errors out. Make weak groups trigger a fall back for EBADF too. Then this case works correctly: $ perf stat -v -e '{cstate_pkg/c2-residency/,msr/tsc/}:W' -a sleep 1 Using CPUID GenuineIntel-6-3E Weak group for cstate_pkg/c2-residency//2 failed cstate_pkg/c2-residency/: 476709882 1000598460 1000598460 msr/tsc/: 39625837911 12007369110 12007369110 Performance counter stats for 'system wide': 476,709,882 cstate_pkg/c2-residency/ 39,625,837,911 msr/tsc/ 1.000697588 seconds time elapsed This fixes perf stat -M Power ... $ perf stat -M Power --metric-only -a sleep 1 Performance counter stats for 'system wide': Turbo_Utilization C3_Core_Residency C6_Core_Residency C7_Core_Residency C2_Pkg_Residency C3_Pkg_Residency C6_Pkg_Residency C7_Pkg_Residency 1.0 0.7 30.0 0.0 0.9 0.1 0.4 0.0 1.001240740 seconds time elapsed Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170905211324.32427-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf tools: Make copyfile_offset() staticArnaldo Carvalho de Melo11-3/+11
There are no usage outside util.c and this is the only remaining reason for fcntl.h to be included in util.h, to get the loff_t definition in Alpine Linux, so make it static. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-2dzlsao7k6ihozs5karw6kpx@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf config: Allow creating empty config set for config file autogenerationTaeung Song1-4/+1
When there isn't a config file (e.g. ~/.perfconfig) or it has nothing, the config set wasn't created. If the config set does not exist, a config file can't be autogenerated. So allow creating a empty config set in the above case, then we can support the config file autogeneration. Before: $ rm -f ~/.perfconfig $ perf config --user report.children=false $ cat ~/.perfconfig cat: /root/.perfconfig: No such file or directory But I think it should work even if there isn't a config file. After: $ rm -f ~/.perfconfig $ perf config --user report.children=false $ cat ~/.perfconfig # this file is auto-generated. [report] children = false NOTE: As a result, if perf_config_set__init() fails, it looks as if the config set isn't freed. But it isn't a problem. Because the config set will be freed by perf_config_set__delete() at the end of cmd_config(). Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1504754336-9824-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf config: Write a config file just onceTaeung Song1-6/+16
Currently set_config() can be repeatedly called for each input config on the below case: $ perf config kmem.default=slab report.children=false ... But it's a waste, so only once write a config file gathering all given config key=value pairs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1504754331-9776-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf tools: Use scandir() to replace readdir()Kan Liang1-20/+25
In perf_event__synthesize_threads() perf goes through all proc files serially by readdir. scandir() does a snapshoot of /proc, which is multithreading friendly. It's possible that some threads which are added during event synthesize. But the number of lost threads should be small. They should not impact the final analysis. Signed-off-by: Kan Liang <kan.liang@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Lukasz Odzioba <lukasz.odzioba@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1504806954-150842-3-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf ui progress: Add size info into progress barJiri Olsa4-4/+36
Adding the size values '[current/total]' into progress bar, to show more detailed progress of data reading. Adding new ui_progress__init_size function to specify we want to display the size. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170908120510.22515-5-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf ui progress: Add ui specific init functionJiri Olsa3-2/+10
Adding ui specific init function allowing to setup the progress bar width based on current screen scales. Adding TUI init function to get more grained update of the progress bar. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170908120510.22515-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf tools: Add python-clean targetJiri Olsa1-3/+5
To be able to cleanup only python related binaries. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20170908084621.31595-3-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf script: Support user regsAndi Kleen2-3/+31
Teach perf script to print user regs. % perf record --user-regs=ip,sp ... % perf script -F ip,sym,uregs ... ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637 ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637 ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637 ffffffff9e060c24 native_write_msr ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637 ffffffff9e00cc12 intel_pmu_handle_irq ABI:2 SP:0x7ffd0ea06c38 IP:0x7fe77f55b637 v2: Rebased on top of phys-addr patches Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/20170905184057.26135-1-andi@firstfloor.org [ Use PRIu64 for regs->abi in print_sample_uregs() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf record: Support direct --user-regs argumentsAndi Kleen4-1/+12
USER_REGS can currently only collected implicitely with call graph recording. Sometimes it is useful to see them separately, and filter them. Add a new --user-regs option to record that is similar to --intr-regs, but acts on user regs. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170905170029.19722-1-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Update walltime_nsecs_stats in interval modeAndi Kleen1-0/+2
Some metrics (like GFLOPs) need walltime_nsecs_stats for each interval. Compute it for each interval instead of only at the end. Pointed out by Jiri. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-12-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Hide internal duration_time counterAndi Kleen1-3/+24
Some perf stat metrics use an internal "duration_time" metric. It is not correctly printed however. So hide it during output to avoid confusing users with 0 counts. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-11-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Support duration_time for metricsAndi Kleen2-4/+14
Some of the metrics formulas (like GFLOPs) need to know how long the measurement period is. Support an internal event called duration_time, which reports time in second. It maps to the dummy event, but is special cased for statistics to report the walltime duration. So far it is not printed, but only used internally for metrics. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-10-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Don't use ctx for saved values lookupAndi Kleen1-11/+5
We don't need to use ctx to look up events for saved values. The context is already part of the evsel pointer, which is the primary key. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-9-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf list: Add metric groups to perf listAndi Kleen4-1/+192
Add code to perf list to print metric groups, and metrics that don't have an event name. The metricgroup code collects the eventgroups and events into a rblist, and then prints them according to the configured filters. The metricgroups are printed by default, but can be limited by perf list metric or perf list metricgroup % perf list metricgroup .. Metric Groups: DSB: DSB_Coverage [Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)] FLOPS: GFLOPs [Giga Floating Point Operations Per Second] Frontend: IFetch_Line_Utilization [Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions] Frontend_Bandwidth: DSB_Coverage [Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)] Memory_BW: MLP [Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)] v2: Check return value of asprintf to fix warning on FC26 Fix key in lookup/addition for the groups list Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-8-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Support JSON metrics in perf statAndi Kleen8-6/+395
Add generic support for standalone metrics specified in JSON files to perf stat. A metric is a formula that uses multiple events to compute a higher level result (e.g. IPC). Previously metrics were always tied to an event and automatically enabled with that event. But now change it that we can have standalone metrics. They are in the same JSON data structure as events, but don't have an event name. We also allow to organize the metrics in metric groups, which allows a short cut to select several related metrics at once. Add a new -M / --metrics option to perf stat that adds the metrics or metric groups specified. Add the core code to manage and parse the metric groups. They are collected from the JSON data structures into a separate rblist. When computing shadow values look for metrics in that list. Then they are computed using the existing saved values infrastructure in stat-shadow.c The actual JSON metrics are in a separate pull request. % perf stat -M Summary --metric-only -a sleep 1 Performance counter stats for 'system wide': Instructions CLKS CPU_Utilization GFLOPs SMT_2T_Utilization Kernel_Utilization 317614222.0 1392930775.0 0.0 0.0 0.2 0.1 1.001497549 seconds time elapsed % perf stat -M GFLOPs flops Performance counter stats for 'flops': 3,999,541,471 fp_comp_ops_exe.sse_scalar_single # 1.2 GFLOPs (66.65%) 14 fp_comp_ops_exe.sse_scalar_double (66.65%) 0 fp_comp_ops_exe.sse_packed_double (66.67%) 0 fp_comp_ops_exe.sse_packed_single (66.70%) 0 simd_fp_256.packed_double (66.70%) 0 simd_fp_256.packed_single (66.67%) 0 duration_time 3.238372845 seconds time elapsed v2: Add missing header file v3: Move find_map to pmu.c Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-7-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf pmu: Extract function to get JSON alias mapAndi Kleen2-16/+35
Extract the code to get the per cpu JSON alias into a separate function for reuse. No behavior changes. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-6-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Print generic metric header even for failed expressionsAndi Kleen1-1/+3
Print the generic metric header even when the expression evaluation failed. Otherwise an expression that fails on the first collections due to division by zero may suddenly reappear later without an header. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-5-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf stat: Factor out generic metric printingAndi Kleen1-27/+42
The 'perf stat' shadow metric printing already supports generic metrics. Factor out the code doing that into a separate function that can be re-used in a later patch. No behavior changes. v2: Fix indentation Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-4-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf vendor events: Support metric_group and no event name in JSON parserAndi Kleen3-7/+20
Some enhancements to the JSON parser to prepare for metrics support - Parse the new MetricGroup field - Support JSON events with no event name, that have only MetricName. Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/20170831194036.30146-3-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf tools: Support weak groups in 'perf stat'Andi Kleen5-2/+46
Setting up groups can be complicated due to the complicated scheduling restrictions of different PMUs. User tools usually don't understand all these restrictions. Still in many cases it is useful to set up groups and they work most of the time. However if the group is set up wrong some members will not report any value because they never get scheduled. Add a concept of a 'weak group': try to set up a group, but if it's not schedulable fallback to not using a group. That gives us the best of both worlds: groups if they work, but still a usable fallback if they don't. In theory it would be possible to have more complex fallback strategies (e.g. try to split the group in half), but the simple fallback of not using a group seems to work for now. So far the weak group is only implemented for perf stat, not for record. Here's an unschedulable group (on IvyBridge with SMT on) % perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}' -a sleep 1 73,806,067 branches 4,848,144 branch-misses # 6.57% of all branches 14,754,458 l1d.replacement 24,905,558 l2_lines_in.all <not supported> l2_rqsts.all_code_rd <------- will never report anything With the weak group: % perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}:W' -a sleep 1 125,366,055 branches (80.02%) 9,208,402 branch-misses # 7.35% of all branches (80.01%) 24,560,249 l1d.replacement (80.00%) 43,174,971 l2_lines_in.all (80.05%) 31,891,457 l2_rqsts.all_code_rd (79.92%) The extra event scheduled with some extra multiplexing v2: Move fallback code to separate function. Add comment on for_each_group_member Adjust to new perf_evsel__close interface v3: Fix debug print out. Committer testing: Before: # perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}' -a sleep 1 Performance counter stats for 'system wide': <not counted> branches <not counted> branch-misses <not counted> l1d.replacement <not counted> l2_lines_in.all <not supported> l2_rqsts.all_code_rd 1.002147212 seconds time elapsed # perf stat -e '{branches,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}' -a sleep 1 Performance counter stats for 'system wide': 83,207,892 branches 11,065,444 l1d.replacement 28,484,024 l2_lines_in.all 12,186,179 l2_rqsts.all_code_rd 1.001739493 seconds time elapsed After: # perf stat -e '{branches,branch-misses,l1d.replacement,l2_lines_in.all,l2_rqsts.all_code_rd}':W -a sleep 1 Performance counter stats for 'system wide': 543,323,909 branches (80.01%) 27,100,512 branch-misses # 4.99% of all branches (80.02%) 50,402,905 l1d.replacement (80.03%) 67,385,892 l2_lines_in.all (80.01%) 21,352,885 l2_rqsts.all_code_rd (79.94%) 1.001086658 seconds time elapsed # Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lkml.kernel.org/r/20170831194036.30146-2-andi@firstfloor.org [ Add a "'perf stat' only, for now" comment in the man page, suggested by Jiri ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13perf sched timehist: Add pid and tid optionsDavid Ahern2-0/+12
Add options to only show event for specific pid(s) and tid(s). Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1504288152-19690-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-09-13Merge tag 'perf-urgent-for-mingo-4.14-20170912' of ↵Ingo Molnar8-14/+45
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix TUI progress bar when delta from new total from that of the previous update is greater than the progress "step" (screen width progress bar block)) (Jiri Olsa) - Make tools/lib/api make DEBUG=1 build use -D_FORTIFY_SOURCE=2 not to cripple debuginfo, just like tools/perf/ does (Jiri Olsa) - Avoid leaking the 'perf.data' file to workloads started from the 'perf record' command line by using the O_CLOEXEC open flag (Jiri Olsa) - Fix building when libunwind's 'unwind.h' file is present in the include path, clashing with tools/perf/util/unwind.h (Milian Wolff) - Check per .perfconfig section entry flag, not just per section (Taeung Song) - Support running perf binaries with a dash in their name, needed to run perf as an AppImage (Milian Wolff) - Wait for the right child by using waitpid() when running workloads from 'perf stat', also to fix using perf as an AppImage (Milian Wolff) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-13Merge tag 'f2fs-for-4.14' of ↵Linus Torvalds22-511/+2228
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs updates from Jaegeuk Kim: "In this round, we've mostly tuned f2fs to provide better user experience for Android. Especially, we've worked on atomic write feature again with SQLite community in order to support it officially. And we added or modified several facilities to analyze and enhance IO behaviors. Major changes include: - add app/fs io stat - add inode checksum feature - support project/journalled quota - enhance atomic write with new ioctl() which exposes feature set - enhance background gc/discard/fstrim flows with new gc_urgent mode - add F2FS_IOC_FS{GET,SET}XATTR - fix some quota flows" * tag 'f2fs-for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (63 commits) f2fs: hurry up to issue discard after io interruption f2fs: fix to show correct discard_granularity in sysfs f2fs: detect dirty inode in evict_inode f2fs: clear radix tree dirty tag of pages whose dirty flag is cleared f2fs: speed up gc_urgent mode with SSR f2fs: better to wait for fstrim completion f2fs: avoid race in between read xattr & write xattr f2fs: make get_lock_data_page to handle encrypted inode f2fs: use generic terms used for encrypted block management f2fs: introduce f2fs_encrypted_file for clean-up Revert "f2fs: add a new function get_ssr_cost" f2fs: constify super_operations f2fs: fix to wake up all sleeping flusher f2fs: avoid race in between atomic_read & atomic_inc f2fs: remove unneeded parameter of change_curseg f2fs: update i_flags correctly f2fs: don't check inode's checksum if it was dirtied or writebacked f2fs: don't need to update inode checksum for recovery f2fs: trigger fdatasync for non-atomic_write file f2fs: fix to avoid race in between aio and gc ...
2017-09-13Merge tag 'ceph-for-4.14-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds20-352/+421
Pull ceph updates from Ilya Dryomov: "The highlights include: - a large series of fixes and improvements to the snapshot-handling code (Zheng Yan) - individual read/write OSD requests passed down to libceph are now limited to 16M in size to avoid hitting OSD-side limits (Zheng Yan) - encode MStatfs v2 message to allow for more accurate space usage reporting (Douglas Fuller) - switch to the new writeback error tracking infrastructure (Jeff Layton)" * tag 'ceph-for-4.14-rc1' of git://github.com/ceph/ceph-client: (35 commits) ceph: stop on-going cached readdir if mds revokes FILE_SHARED cap ceph: wait on writeback after writing snapshot data ceph: fix capsnap dirty pages accounting ceph: ignore wbc->range_{start,end} when write back snapshot data ceph: fix "range cyclic" mode writepages ceph: cleanup local variables in ceph_writepages_start() ceph: optimize pagevec iterating in ceph_writepages_start() ceph: make writepage_nounlock() invalidate page that beyonds EOF ceph: properly get capsnap's size in get_oldest_context() ceph: remove stale check in ceph_invalidatepage() ceph: queue cap snap only when snap realm's context changes ceph: handle race between vmtruncate and queuing cap snap ceph: fix message order check in handle_cap_export() ceph: fix NULL pointer dereference in ceph_flush_snaps() ceph: adjust 36 checks for NULL pointers ceph: delete an unnecessary return statement in update_dentry_lease() ceph: ENOMEM pr_err in __get_or_create_frag() is redundant ceph: check negative offsets in ceph_llseek() ceph: more accurate statfs ceph: properly set snap follows for cap reconnect ...
2017-09-13xfs: XFS_IS_REALTIME_INODE() should be false if no rt device presentRichard Wareing1-1/+8
If using a kernel with CONFIG_XFS_RT=y and we set the RHINHERIT flag on a directory in a filesystem that does not have a realtime device and create a new file in that directory, it gets marked as a real time file. When data is written and a fsync is issued, the filesystem attempts to flush a non-existent rt device during the fsync process. This results in a crash dereferencing a null buftarg pointer in xfs_blkdev_issue_flush(): BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: xfs_blkdev_issue_flush+0xd/0x20 ..... Call Trace: xfs_file_fsync+0x188/0x1c0 vfs_fsync_range+0x3b/0xa0 do_fsync+0x3d/0x70 SyS_fsync+0x10/0x20 do_syscall_64+0x4d/0xb0 entry_SYSCALL64_slow_path+0x25/0x25 Setting RT inode flags does not require special privileges so any unprivileged user can cause this oops to occur. To reproduce, confirm kernel is compiled with CONFIG_XFS_RT=y and run: # mkfs.xfs -f /dev/pmem0 # mount /dev/pmem0 /mnt/test # mkdir /mnt/test/foo # xfs_io -c 'chattr +t' /mnt/test/foo # xfs_io -f -c 'pwrite 0 5m' -c fsync /mnt/test/foo/bar Or just run xfstests with MKFS_OPTIONS="-d rtinherit=1" and wait. Kernels built with CONFIG_XFS_RT=n are not exposed to this bug. Fixes: f538d4da8d52 ("[XFS] write barrier support") Cc: <stable@vger.kernel.org> Signed-off-by: Richard Wareing <rwareing@fb.com> Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-12Merge tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds22-210/+156
Pull dma-mapping updates from Christoph Hellwig: - removal of the old dma_alloc_noncoherent interface - remove unused flags to dma_declare_coherent_memory - restrict OF DMA configuration to specific physical busses - use the iommu mailing list for dma-mapping questions and patches * tag 'dma-mapping-4.14' of git://git.infradead.org/users/hch/dma-mapping: dma-coherent: fix dma_declare_coherent_memory() logic error ARM: imx: mx31moboard: Remove unused 'dma' variable dma-coherent: remove an unused variable MAINTAINERS: use the iommu list for the dma-mapping subsystem dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags dma-coherent: remove the DMA_MEMORY_INCLUDES_CHILDREN flag of: restrict DMA configuration dma-mapping: remove dma_alloc_noncoherent and dma_free_noncoherent i825xx: switch to switch to dma_alloc_attrs au1000_eth: switch to dma_alloc_attrs sgiseeq: switch to dma_alloc_attrs dma-mapping: reduce dma_mapping_error inline bloat
2017-09-12Merge tag 'uuid-for-4.14' of git://git.infradead.org/users/hch/uuidLinus Torvalds3-54/+54
Pull uuid updates from Christoph Hellwig: "Just a single conversion to the new UUID API for this merge window" * tag 'uuid-for-4.14' of git://git.infradead.org/users/hch/uuid: efi: switch to use new generic UUID API
2017-09-12Merge tag 'selinux-pr-20170831' of ↵Linus Torvalds36-104/+117
git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux Pull selinux updates from Paul Moore: "A relatively quiet period for SELinux, 11 patches with only two/three having any substantive changes. These noteworthy changes include another tweak to the NNP/nosuid handling, per-file labeling for cgroups, and an object class fix for AF_UNIX/SOCK_RAW sockets; the rest of the changes are minor tweaks or administrative updates (Stephen's email update explains the file explosion in the diffstat). Everything passes the selinux-testsuite" [ Also a couple of small patches from the security tree from Tetsuo Handa for Tomoyo and LSM cleanup. The separation of security policy updates wasn't all that clean - Linus ] * tag 'selinux-pr-20170831' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: constify nf_hook_ops selinux: allow per-file labeling for cgroupfs lsm_audit: update my email address selinux: update my email address MAINTAINERS: update the NetLabel and Labeled Networking information selinux: use GFP_NOWAIT in the AVC kmem_caches selinux: Generalize support for NNP/nosuid SELinux domain transitions selinux: genheaders should fail if too many permissions are defined selinux: update the selinux info in MAINTAINERS credits: update Paul Moore's info selinux: Assign proper class to PF_UNIX/SOCK_RAW sockets tomoyo: Update URLs in Documentation/admin-guide/LSM/tomoyo.rst LSM: Remove security_task_create() hook.
2017-09-12Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds5-9/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Two fixes: dead code removal, plus a SME memory encryption fix on 32-bit kernels that crashed Xen guests" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Remove unused and undefined __generic_processor_info() declaration x86/mm: Make the SME mask a u64
2017-09-12Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds5-8/+30
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Three fixes: - fix a suspend/resume cpusets bug - fix a !CONFIG_NUMA_BALANCING bug - fix a kerneldoc warning" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/fair: Fix nuisance kernel-doc warning sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs sched/fair: Fix wake_affine_llc() balancing rules
2017-09-12Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds37-268/+368
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf tooling updates from Ingo Molnar: "Perf tooling updates and fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf annotate browser: Help for cycling thru hottest instructions with TAB/shift+TAB perf stat: Only auto-merge events that are PMU aliases perf test: Add test case for PERF_SAMPLE_PHYS_ADDR perf script: Support physical address perf mem: Support physical address perf sort: Add sort option for physical address perf tools: Support new sample type for physical address perf vendor events powerpc: Remove duplicate events perf intel-pt: Fix syntax in documentation of config option perf test powerpc: Fix 'Object code reading' test perf trace: Support syscall name globbing perf syscalltbl: Support glob matching on syscall names perf report: Calculate the average cycles of iterations
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