BMC/Intel-BMC/linux.git/tools/perf/util/pmu.c, branch dev

perf pmu: Split perf_pmu__new_alias()

2015-06-23T21:21:30+00:00

Separate the event parsing code in perf_pmu__new_alias() out into a separate function __perf_pmu__new_alias() so that code can be called indepdently. This is based on an earlier patch from Andi Kleen. Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Cc: Andi Kleen Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Namhyung Kim Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1433921123-25327-5-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf pmu: Use __weak definition from

2015-06-23T21:21:15+00:00

Jiri Olsa pointed out, that the defines the attribute '__weak'. We might as well use that. Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Cc: Andi Kleen Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Namhyung Kim Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1433921123-25327-4-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove newline char when reading event scale and unit

2015-06-01T13:26:19+00:00

The commit intruduced the perf_event_sysfs_show function to display the event_str value of an attr in kernel/event/core.c. But the function returns the value with a newline char. So, if a event also carries a event.unit file, when printing the counter data perf tool formatting goes for a spin. That is, because of the event unit, event name is printed in the newline because of perf_event_sysfs_show returns with a newline char. Now fixing perf core will break API, hencing proposing a fix in the perf tool. Signed-off-by: Madhavan Srinivasan Cc: Jiri Olsa Cc: Michael Ellerman Cc: Peter Zijlstra Cc: Sukadev Bhattiprolu Link: http://lkml.kernel.org/r/1433052383-21802-1-git-send-email-maddy@linux.vnet.ibm.com [ Add spaces around operators ] Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Disallow PMU events intel_pt and intel_bts until there is support

2015-05-27T15:21:45+00:00

Disallow PMU events intel_pt and intel_bts until the tools support them. By default any PMU is selectable as an event but until the tools have intel_pt and intel_bts support using them would result in no data being recorded without any indication as to why. Before the change: $ perf record -e intel_bts// sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.008 MB perf.data ] $ perf report --stdio Error: The perf.data file has no samples! After the change: $ perf record -e intel_bts// sleep 1 invalid or unsupported event: 'intel_bts//' Run 'perf list' for a list of valid events Reported-by: Arnaldo Carvalho de Melo Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1432295653-13989-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add term support for parse_events_error

2015-04-29T13:38:01+00:00

Allowing event's term processing to report back error, like: $ perf record -e 'cpu/even=0x1/' ls event syntax error: 'cpu/even=0x1/' \___ unknown term valid terms: pc,any,inv,edge,cmask,event,in_tx,ldlat,umask,in_tx_cp,offcore_rsp,config,config1,config2,name,period,branch_type Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: David Ahern Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1429729824-13932-7-git-send-email-jolsa@kernel.org [ Renamed 'error' variables to 'err', not to clash with util.h error() ] Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Extend format_alias() to include event parameters

2015-01-21T16:24:33+00:00

This causes `perf list pmu` to show parameters for parameterized events like: pmu/event_name,param1=?,param2=?/ [Kernel PMU event] An example: hv_24x7/HPM_TLBIE__PHYS_CORE,core=?/ [Kernel PMU event] Signed-off-by: Cody P Schafer Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Cc: Cody P Schafer Cc: Haren Myneni Cc: Jiri Olsa Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1420679633-28856-3-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Support parsing parameterized events

2015-01-21T16:24:32+00:00

Enable event specification like: pmu/event_name,param1=0x1,param2=0x4/ Assuming that /sys/bus/event_source/devices/pmu/events/event_name Contains something like param2=?,bar=1,param1=? Signed-off-by: Cody P Schafer Signed-off-by: Sukadev Bhattiprolu Acked-by: Jiri Olsa Cc: Cody P Schafer Cc: Haren Myneni Cc: Jiri Olsa Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1420679633-28856-2-git-send-email-sukadev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add snapshot format file parsing

2014-11-24T21:03:51+00:00

The .snapshot file indicates that the provided event value is a snapshot value and we have to bypass the delta computation logic. Adding support to check up this file and set event flag accordingly. Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Matt Fleming Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1416562275-12404-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add per-pkg format file parsing

2014-11-24T21:03:51+00:00

The .per-pkg file indicates that all but one value per socket should be discarded. Adding support to check up this file and set event flag accordingly. This patch is part of Matt's original patch: http://marc.info/?l=linux-kernel&m=141527675002139&w=2 only the file parsing part, the rest is solved differently. Signed-off-by: Matt Fleming Cc: Andi Kleen Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1416562275-12404-9-git-send-email-jolsa@kernel.org Signed-off-by: Jiri Olsa Signed-off-by: Arnaldo Carvalho de Melo

perf pmu: Add proper error handling to print_pmu_events()

2014-10-29T12:32:48+00:00

It was silently returning or printing "(null)" when no memory was available at various points. Fix it by checking and warning the user when that happens. Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Don Zickus Cc: Frederic Weisbecker Cc: Jean Pihet 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-835udmf66x9nza504cu6irz9@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo