| 48859e52 | 16-Dec-2020 |
Namhyung Kim <namhyung@kernel.org> |
tools api fs: Cache cgroupfs mount point
Currently it parses the /proc file everytime it opens a file in the
cgroupfs. Save the last result to avoid it (assuming it won't be
changed between the acc
tools api fs: Cache cgroupfs mount point
Currently it parses the /proc file everytime it opens a file in the
cgroupfs. Save the last result to avoid it (assuming it won't be
changed between the accesses).
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20201216090556.813996-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 6fd99b7f | 16-Dec-2020 |
Namhyung Kim <namhyung@kernel.org> |
tools api fs: Diet cgroupfs_find_mountpoint()
Reduce the number of buffers and hopefully make it more efficient. :)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redh
tools api fs: Diet cgroupfs_find_mountpoint()
Reduce the number of buffers and hopefully make it more efficient. :)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20201216090556.813996-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| d3da1f09 | 17-Jul-2020 |
Alexey Budankov <alexey.budankov@linux.intel.com> |
libperf: Avoid counting of nonfilterable fdarray fds
Avoid counting of struct pollfd *entries objects with
fdarray_flag__nonfilterable flag by fdarray__filter().
Nonfilterable objects are still pro
libperf: Avoid counting of nonfilterable fdarray fds
Avoid counting of struct pollfd *entries objects with
fdarray_flag__nonfilterable flag by fdarray__filter().
Nonfilterable objects are still processed if requested revents have been
signaled for them.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/b5ab0d2c-b742-0032-e8d3-c8e2eb423c42@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| ab4c1f9f | 17-Jul-2020 |
Alexey Budankov <alexey.budankov@linux.intel.com> |
libperf: Add flags to fdarray fds objects
Store flags per struct pollfd *entries object in a bitmap of int size.
Implement fdarray_flag__nonfilterable flag to skip object from counting
by fdarray__
libperf: Add flags to fdarray fds objects
Store flags per struct pollfd *entries object in a bitmap of int size.
Implement fdarray_flag__nonfilterable flag to skip object from counting
by fdarray__filter().
Fixed fdarray test issue reported by kernel test robot.
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/6b7d43ff-0801-d5dd-4e90-fcd86b17c1c8@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 789e4650 | 17-May-2018 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
tools lib api fs tracing_path: Make tracing_events_path private
Not anymore accessed outside this library, keep it private.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmai
tools lib api fs tracing_path: Make tracing_events_path private
Not anymore accessed outside this library, keep it private.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-wg1m07flfrg1rm06jjzie8si@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 7014e0e3 | 17-May-2018 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
tools lib api fs tracing_path: Introduce opendir() method
That takes care of using the right call to get the tracing_path
directory, the one that will end up calling tracing_path_set() to figure
out
tools lib api fs tracing_path: Introduce opendir() method
That takes care of using the right call to get the tracing_path
directory, the one that will end up calling tracing_path_set() to figure
out where tracefs is mounted.
One more step in doing just lazy reading of system structures to reduce
the number of operations done unconditionaly at 'perf' start.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-42zzi0f274909bg9mxzl81bu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 40c3c0c9 | 16-May-2018 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
tools lib api fs tracing_path: Introduce get/put_events_file() helpers
To make reading events files a tad more compact than with
get_tracing_files("events/foo").
Cc: Adrian Hunter <adrian.hunter@in
tools lib api fs tracing_path: Introduce get/put_events_file() helpers
To make reading events files a tad more compact than with
get_tracing_files("events/foo").
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-do6xgtwpmfl8zjs1euxsd2du@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 17c257e8 | 16-May-2018 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
tools lib api: Unexport 'tracing_path' variable
One should use tracing_path_mount() instead, so more things get done
lazily instead of at every 'perf' tool call startup.
Cc: Adrian Hunter <adrian.h
tools lib api: Unexport 'tracing_path' variable
One should use tracing_path_mount() instead, so more things get done
lazily instead of at every 'perf' tool call startup.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-fci4yll35idd9yuslp67vqc2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| d9c5f322 | 06-Feb-2018 |
Jiri Olsa <jolsa@kernel.org> |
tools lib api fs: Add sysfs__read_xll function
Adding sysfs__read_xll function to be able to read sysfs files with hex
numbers in, which do not have 0x prefix.
Signed-off-by: Jiri Olsa <jolsa@kerne
tools lib api fs: Add sysfs__read_xll function
Adding sysfs__read_xll function to be able to read sysfs files with hex
numbers in, which do not have 0x prefix.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180206181813.10943-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| 3866058e | 27-Aug-2017 |
David Carrillo-Cisneros <davidcc@google.com> |
perf tools: Robustify detection of clang binary
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC),
clang), failing to detect CLANG binaries with different names. Fix it by
testing
perf tools: Robustify detection of clang binary
Prior to this patch, make scripts tested for CLANG with ifeq ($(CC),
clang), failing to detect CLANG binaries with different names. Fix it by
testing for the existence of __clang__ macro in the list of compiler
defined macros.
Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Paul Turner <pjt@google.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20170827075442.108534-5-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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