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perf script: Remove the time slices number limitation

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Previously it was only allowed to use at most 10 time slices in 'perf
script --time'.

This patch removes this limitation.
For example, following command line is OK (12 time slices)

perf script --time 1%/1,1%/2,1%/3,1%/4,1%/5,1%/6,1%/7,1%/8,1%/9,1%/10,1%/11,1%/12

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1515596433-24653-9-git-send-email-yao.jin@linux.intel.com
[ No need to check for NULL to call free, use zfree ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao
2018-01-10 23:00:33 +08:00
committed by Arnaldo Carvalho de Melo
parent 0a3cc3ae05
commit cc2ef584a8
2 changed files with 17 additions and 9 deletions
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10
tools/perf/Documentation/perf-script.txt
View File

@@ -351,19 +351,19 @@ include::itrace.txt[]
to end of file.
Also support time percent with multipe time range. Time string is
'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'. The maximum number of slices is 10.
'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'.
For example:
Select the second 10% time slice
Select the second 10% time slice:
perf script --time 10%/2
Select from 0% to 10% time slice
Select from 0% to 10% time slice:
perf script --time 0%-10%
Select the first and second 10% time slices
Select the first and second 10% time slices:
perf script --time 10%/1,10%/2
Select from 0% to 10% and 30% to 40% slices
Select from 0% to 10% and 30% to 40% slices:
perf script --time 0%-10%,30%-40%
--max-blocks::