xavi/android_kernel_m2note/tools/perf/util, branch ng-7.1.2

perf header: Fix wrong node write in NUMA_TOPOLOGY feature

2019-07-18T18:42:45+00:00

commit b00ccb27f97367d89e2d7b419ed198b0985be55d upstream. We are currently passing the node index instead of the real node number. Change-Id: I1c41c0d83666f26a56debdf9436fb1090a9fb8db Signed-off-by: Jiri Olsa Acked-by: Namhyung Kim Cc: Alexander Shishkin Cc: Peter Zijlstra Fixes: fbe96f29ce4b ("perf tools: Make perf.data more self-descriptive (v8)" Link: http://lkml.kernel.org/r/20190219095815.15931-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings

perf scripting: Avoid leaking the scripting_context variable

2017-06-17T13:50:12+00:00

commit cf346d5bd4b9d61656df2f72565c9b354ef3ca0d upstream. Both register_perl_scripting() and register_python_scripting() allocate this variable, fix it by checking if it already was. Cc: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Tom Zanussi Cc: Wang Nan Fixes: 7e4b21b84c43 ("perf/scripts: Add Python scripting engine") Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Willy Tarreau

perf symbols: Fixup symbol sizes before picking best ones

2017-04-11T08:58:31+00:00

commit 432746f8e0b6a82ba832b771afe31abd51af6752 upstream. When we call symbol__fixup_duplicate() we use algorithms to pick the "best" symbols for cases where there are various functions/aliases to an address, and those check zero size symbols, which, before calling symbol__fixup_end() are _all_ symbols in a just parsed kallsyms file. So first fixup the end, then fixup the duplicates. Found while trying to figure out why 'perf test vmlinux' failed, see the output of 'perf test -v vmlinux' to see cases where the symbols picked as best for vmlinux don't match the ones picked for kallsyms. Cc: Anton Blanchard Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Wang Nan Fixes: 694bf407b061 ("perf symbols: Add some heuristics for choosing the best duplicate symbol") Link: http://lkml.kernel.org/n/tip-rxqvdgr0mqjdxee0kf8i2ufn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Willy Tarreau

BACKPORT: perf tools: Document the perf sysctls

2016-09-10T13:04:41+00:00

perf_event_paranoid was only documented in source code and a perf error message. Copy the documentation from the error message to Documentation/sysctl/kernel.txt. Signed-off-by: Ben Hutchings Cc: Peter Zijlstra Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/20160119213515.GG2637@decadent.org.uk [ Remove reference to external Documentation file, provide info inline, as before ] Signed-off-by: Arnaldo Carvalho de Melo Bug: 29054680 Change-Id: I13e73cfb2ad761c94762d0c8196df7725abdf5c5

perf header: Fixup reading of HEADER_NRCPUS feature

2016-08-26T18:44:21+00:00

commit caa470475d9b59eeff093ae650800d34612c4379 upstream. The original patch introducing this header wrote the number of CPUs available and online in one order and then swapped those values when reading, fix it. Before: # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 4 # echo 0 > /sys/devices/system/cpu/cpu2/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 3 # echo 0 > /sys/devices/system/cpu/cpu1/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 2 After the fix, bringing back the CPUs online: # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 2 # nrcpus avail : 4 # echo 1 > /sys/devices/system/cpu/cpu2/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 3 # nrcpus avail : 4 # echo 1 > /sys/devices/system/cpu/cpu1/online # perf record usleep 1 # perf report --header-only | grep 'nrcpus \(online\|avail\)' # nrcpus online : 4 # nrcpus avail : 4 Acked-by: Namhyung Kim Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Kan Liang Cc: Stephane Eranian Cc: Wang Nan Fixes: fbe96f29ce4b ("perf tools: Make perf.data more self-descriptive (v8)") Link: http://lkml.kernel.org/r/20150911153323.GP23511@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman Signed-off-by: Stefan Guendhoer

first commit

2016-08-15T02:19:42+00:00