Searched hist:"7 e9fca51fbf8430e27fb6b29299eda575e3f00cf" (Results 1 – 2 of 2) sorted by relevance
/linux/tools/perf/Documentation/ |
H A D | perf-probe.txt | diff 7e9fca51fbf8430e27fb6b29299eda575e3f00cf Tue Jul 12 12:05:46 CEST 2016 Masami Hiramatsu <mhiramat@kernel.org> perf probe: Support a special SDT probe format
Support a special SDT probe format which can omit the '%' prefix only if the SDT group name starts with "sdt_". So, for example both of "%sdt_libc:setjump" and "sdt_libc:setjump" are acceptable for perf probe --add.
E.g. without this:
# perf probe -a sdt_libc:setjmp Semantic error :There is non-digit char in line number. ...
With this:
# perf probe -a sdt_libc:setjmp Added new event: sdt_libc:setjmp (on %setjmp in /usr/lib64/libc-2.20.so)
You can now use it in all perf tools, such as:
perf record -e sdt_libc:setjmp -aR sleep 1
Suggested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146831794674.17065.13359473252168740430.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
/linux/tools/perf/util/ |
H A D | probe-event.c | diff 7e9fca51fbf8430e27fb6b29299eda575e3f00cf Tue Jul 12 12:05:46 CEST 2016 Masami Hiramatsu <mhiramat@kernel.org> perf probe: Support a special SDT probe format
Support a special SDT probe format which can omit the '%' prefix only if the SDT group name starts with "sdt_". So, for example both of "%sdt_libc:setjump" and "sdt_libc:setjump" are acceptable for perf probe --add.
E.g. without this:
# perf probe -a sdt_libc:setjmp Semantic error :There is non-digit char in line number. ...
With this:
# perf probe -a sdt_libc:setjmp Added new event: sdt_libc:setjmp (on %setjmp in /usr/lib64/libc-2.20.so)
You can now use it in all perf tools, such as:
perf record -e sdt_libc:setjmp -aR sleep 1
Suggested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/146831794674.17065.13359473252168740430.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|