summaryrefslogtreecommitdiff
path: root/fs/seq_file.c
diff options
context:
space:
mode:
authorTörök Edwin <edwintorok@gmail.com>2008-11-22 13:28:47 +0200
committerIngo Molnar <mingo@elte.hu>2008-11-23 09:25:15 +0100
commit02b67518e2b1c490787dac7f35e1204e74fe21ba (patch)
treea3d92846e1a09a829f300ab15726ee9c288cb49e /fs/seq_file.c
parenta0a70c735ef714fe1b6777b571630c3d50c7b008 (diff)
tracing: add support for userspace stacktraces in tracing/iter_ctrl
Impact: add new (default-off) tracing visualization feature Usage example: mount -t debugfs nodev /sys/kernel/debug cd /sys/kernel/debug/tracing echo userstacktrace >iter_ctrl echo sched_switch >current_tracer echo 1 >tracing_enabled .... run application ... echo 0 >tracing_enabled Then read one of 'trace','latency_trace','trace_pipe'. To get the best output you can compile your userspace programs with frame pointers (at least glibc + the app you are tracing). Signed-off-by: Török Edwin <edwintorok@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/seq_file.c')
0 files changed, 0 insertions, 0 deletions