kernel/linux.git/tools/perf/util/header.h, branch v4.4.95

perf env: Move perf_env out of header.h and session.c into separate object

2015-09-14T15:50:19+00:00

Since it can be used separately from 'perf_session' and 'perf_header', move it to separate include file and object, next csets will try to move a perf_env__init() routine. Tested-by: Wang Nan Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Kan Liang Cc: Namhyung Kim Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-ff2rw99tsn670y1b6gxbwdsi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Store the cpu socket and core ids in the perf.data header

2015-09-02T19:30:47+00:00

This patch stores the cpu socket_id and core_id in a perf.data header, and reads them into the perf_env struct when processing perf.data files. The changes modifies the CPU_TOPOLOGY section, making sure it is backward/forward compatible. The patch checks the section size before reading the core and socket ids. It never reads data crossing the section boundary. An old perf binary without this patch can also correctly read the perf.data from a new perf with this patch. Because the new info is added at the end of the cpu_topology section, an old perf tool ignores the extra data. Examples: 1. New perf with this patch read perf.data from an old perf without the patch: $ perf_new report -i perf_old.data --header-only -I ...... # sibling threads : 33 # sibling threads : 34 # sibling threads : 35 # Core ID and Socket ID information is not available # node0 meminfo : total = 32823872 kB, free = 29315548 kB # node0 cpu list : 0-17,36-53 ...... 2. Old perf without the patch reads perf.data from a new perf with the patch: $ perf_old report -i perf_new.data --header-only -I ...... # sibling threads : 33 # sibling threads : 34 # sibling threads : 35 # node0 meminfo : total = 32823872 kB, free = 29190932 kB # node0 cpu list : 0-17,36-53 ...... 3. New perf read new perf.data: $ perf_new report -i perf_new.data --header-only -I ...... # sibling threads : 33 # sibling threads : 34 # sibling threads : 35 # CPU 0: Core ID 0, Socket ID 0 # CPU 1: Core ID 1, Socket ID 0 ...... # CPU 61: Core ID 10, Socket ID 1 # CPU 62: Core ID 11, Socket ID 1 # CPU 63: Core ID 16, Socket ID 1 # node0 meminfo : total = 32823872 kB, free = 29190932 kB # node0 cpu list : 0-17,36-53 Signed-off-by: Kan Liang Cc: Andi Kleen Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1441115893-22006-2-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Rename perf_session_env to perf_env

2015-08-28T17:53:55+00:00

As it is not necessarily tied to a perf.data file and needs using in places where a perf_session is not required. Suggested-by: Arnaldo Carvalho de Melo Signed-off-by: Kan Liang Cc: Adrian Hunter Cc: Andi Kleen Cc: Andy Lutomirski Cc: Jiri Olsa Cc: Mark Rutland Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1440755289-30939-4-git-send-email-kan.liang@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf header: Use argv style storage for cmdline feature data

2015-07-21T17:34:08+00:00

We will reuse argv style data in following change to display counters header showing monitored command line. Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1437481927-29538-12-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf header: Add AUX area tracing feature

2015-04-29T13:37:49+00:00

Add a feature to indicate that a perf.data file contains AUX area data. Signed-off-by: Adrian Hunter Acked-by: Jiri Olsa Cc: David Ahern Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1428594864-29309-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf build-id: Move build-id related functions to util/build-id.c

2014-11-05T13:14:07+00:00

It'd be better managing those functions in a separate place as util/header.c file is already big. It now exports following 3 functions to others: bool perf_session__read_build_ids(struct perf_session *session, bool with_hits); int perf_session__write_buildid_table(struct perf_session *session, int fd); int perf_session__cache_build_ids(struct perf_session *session); Signed-off-by: Namhyung Kim Acked-by: Adrian Hunter Link: http://lkml.kernel.org/r/545733E7.6010105@intel.com Cc: Adrian Hunter Cc: David Ahern Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1415063674-17206-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add dsos__hit_all()

2014-07-23T14:25:40+00:00

Add ability to mark all dsos as hit. This is needed in the case of Instruction Tracing. It takes so long to decode an Instruction Trace that it is not worth doing just to determine which dsos are hit. A later patch takes this into use. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1406035081-14301-15-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

tools: Consolidate types.h

2014-05-01T19:22:39+00:00

Combine all definitions into a common tools/include/linux/types.h and kill the wild growth elsewhere. Move DECLARE_BITMAP to its proper bitmap.h header. Signed-off-by: Borislav Petkov Acked-by: Rusty Russell Link: http://lkml.kernel.org/n/tip-azczs7qcv6h9xek9od10hiv2@git.kernel.org Signed-off-by: Jiri Olsa

perf header: Pack 'struct perf_session_env'

2014-01-13T13:06:23+00:00

Initial struct: [acme@ssdandy linux]$ pahole -C perf_session_env ~/bin/perf struct perf_session_env { char * hostname; /* 0 8 */ char * os_release; /* 8 8 */ char * version; /* 16 8 */ char * arch; /* 24 8 */ int nr_cpus_online; /* 32 4 */ int nr_cpus_avail; /* 36 4 */ char * cpu_desc; /* 40 8 */ char * cpuid; /* 48 8 */ long long unsigned int total_mem; /* 56 8 */ /* --- cacheline 1 boundary (64 bytes) --- */ int nr_cmdline; /* 64 4 */ /* XXX 4 bytes hole, try to pack */ char * cmdline; /* 72 8 */ int nr_sibling_cores; /* 80 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_cores; /* 88 8 */ int nr_sibling_threads; /* 96 4 */ /* XXX 4 bytes hole, try to pack */ char * sibling_threads; /* 104 8 */ int nr_numa_nodes; /* 112 4 */ /* XXX 4 bytes hole, try to pack */ char * numa_nodes; /* 120 8 */ /* --- cacheline 2 boundary (128 bytes) --- */ int nr_pmu_mappings; /* 128 4 */ /* XXX 4 bytes hole, try to pack */ char * pmu_mappings; /* 136 8 */ int nr_groups; /* 144 4 */ /* size: 152, cachelines: 3, members: 20 */ /* sum members: 128, holes: 5, sum holes: 20 */ /* padding: 4 */ /* last cacheline: 24 bytes */ }; [acme@ssdandy linux]$ [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | grep ^/ | grep -v Final /* Moving 'nr_sibling_cores' from after 'cmdline' to after 'nr_cmdline' */ /* Moving 'nr_numa_nodes' from after 'sibling_threads' to after 'nr_sibling_threads' */ /* Moving 'nr_groups' from after 'pmu_mappings' to after 'nr_pmu_mappings' */ [acme@ssdandy linux]$ Final struct stats: [acme@ssdandy linux]$ pahole -C perf_session_env --reorganize --show_reorg_steps ~/bin/perf | tail -4 /* --- cacheline 2 boundary (128 bytes) --- */ /* size: 128, cachelines: 2, members: 20 */ }; /* saved 24 bytes and 1 cacheline! */ [acme@ssdandy linux]$ Cc: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-3d9tshamloinzxcqeb7mtd1n@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf header: Recognize version number for perf data file

2013-07-17T20:04:00+00:00

Keep the recognized data file version within 'struct perf_header'. Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1374083403-14591-8-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo