- 25 5月, 2012 1 次提交
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由 Franck Bui-Huu 提交于
The namelist array (including its content) was not freed if we fail to realloc a new 'threads' structure. Signed-off-by: NFranck Bui-Huu <fbuihuu@gmail.com> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1337952109-31995-1-git-send-email-fbuihuu@gmail.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 22 2月, 2012 1 次提交
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由 Stephane Eranian 提交于
The following commit: b52956c9 perf tools: Allow multiple threads or processes in record, stat, top introduced a bug in the thread_map code which caused perf record -a to not setup system-wide monitoring properly. $ taskset -c 1 noploop 1000 & $ perf record -a -C 1 sleep 10 $ perf report -D | tail -20 cycles stats: TOTAL events: 4413 MMAP events: 4025 COMM events: 340 SAMPLE events: 48 Here I was expecting about 10,000 samples and not 48. In system-wide mode, the PID passed to perf_event_open() must be -1 and it was 0. That caused the kernel to setup a per-process event on PID:0. Consequently, the number of samples captured does not correspond to the requested measurement. The following one-liner fixes the problem for me with or without -C. I would also suggest to change the malloc() to something that matches the struct definition. thread_map->map[] is declared as int map[] and not pid_t map[]. If map[] can only contain pids, then change the struct definition. Acked-by: NDavid Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20120221145424.GA6757@quadSigned-off-by: NStephane Eranian <eranian@google.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 14 2月, 2012 1 次提交
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由 David Ahern 提交于
Allow a user to collect events for multiple threads or processes using a comma separated list. e.g., collect data on a VM and its vhost thread: perf top -p 21483,21485 perf stat -p 21483,21485 -ddd perf record -p 21483,21485 or monitoring vcpu threads perf top -t 21488,21489 perf stat -t 21488,21489 -ddd perf record -t 21488,21489 Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1328718772-16688-1-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 25 1月, 2012 2 次提交
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由 Arnaldo Carvalho de Melo 提交于
The new --uid command line option will show only the tasks for a given user, using the proc interface to figure out the existing tasks. Kernel work is needed to close races at startup, but this should already be useful in many use cases. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-bdnspm000gw2l984a2t53o8z@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
For helping with debugging. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-m06n4rp7pwr6dlzwoq89cl69@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 24 1月, 2011 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
To untangle it from struct thread handling, that is tied to symbols, etc. Right now in the python bindings I'm working on I need just a subset of the util/ files, untangling it allows me to do that. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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