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| author | Masami Hiramatsu | 2016-07-12 12:05:18 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2016-07-14 04:09:07 +0200 |
| commit | 42bba263eb58800b6239a0cb35ac17fd29379277 (patch) | |
| tree | f0db0956443374d672e89f5c83f4ea1e39491557 /arch/c6x/mm | |
| parent | perf probe-cache: Add for_each_probe_cache_entry() wrapper (diff) | |
| download | kernel-qcow2-linux-42bba263eb58800b6239a0cb35ac17fd29379277.tar.gz kernel-qcow2-linux-42bba263eb58800b6239a0cb35ac17fd29379277.tar.xz kernel-qcow2-linux-42bba263eb58800b6239a0cb35ac17fd29379277.zip | |
perf probe: Allow wildcard for cached events
Allo glob wildcard for reusing cached/SDT events. E.g.
# perf probe -x /usr/lib64/libc-2.20.so -a %sdt_libc:\*
This example adds probes for all SDT in libc.
Note that the SDTs must have been scanned by perf buildid-cache.
Committer note:
Using it to check what of those SDT probes would take place when doing
a cargo run (rust):
# trace --no-sys --event sdt_libc:* cargo run
0.000 sdt_libc:setjmp:(7f326b69c4d1))
28.423 sdt_libc:setjmp:(7f4b0a5364d1))
29.000 sdt_libc:setjmp:(7f4b0a5364d1))
88.597 sdt_libc:setjmp:(7fc01fd414d1))
89.220 sdt_libc:setjmp:(7fc01fd414d1))
95.501 sdt_libc:setjmp:(7f326b69c4d1))
Running `target/debug/hello_world`
97.110 sdt_libc:setjmp:(7f95e09234d1))
Hello, world!
#
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/146831791813.17065.17846564230840594888.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/c6x/mm')
0 files changed, 0 insertions, 0 deletions