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perf intel-pt: Remove no_force_psb from documentation

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no_force_psb was dropped as a late change to the kernel driver.
Consequently, remove it from the documentation.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443089122-19082-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2015-09-24 13:05:21 +03:00 committed by Arnaldo Carvalho de Melo
parent 266fa2b222
commit 597ee40722
1 changed files with 0 additions and 15 deletions
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15
tools/perf/Documentation/intel-pt.txt
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@ -364,21 +364,6 @@ cyc_thresh Specifies how frequently CYC packets are produced - see cyc
CYC packets are not requested by default. CYC packets are not requested by default.
no_force_psb This is a driver option and is not in the IA32_RTIT_CTL MSR.
It stops the driver resetting the byte count to zero whenever
enabling the trace (for example on context switches) which in
turn results in no PSB being forced. However some processors
will produce a PSB anyway.
In any case, there is still a PSB when the trace is enabled for
the first time.
no_force_psb can be used to slightly decrease the trace size but
may make it harder for the decoder to recover from errors.
no_force_psb is not selected by default.
new snapshot option new snapshot option
------------------- -------------------