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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2010-03-03 07:38:37 +0100 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-03-10 14:26:40 +0100 |
| commit | 61e67fb9d3ed13e6a7f58652ae4979b9c872fa57 (patch) | |
| tree | bccc09f36185b7aac11f11c64cff5d6f8b38cdae /block/blk-timeout.c | |
| parent | db2c4c7791cd04512093d05afc693c3511a65fd7 (diff) | |
perf/x86-64: Use frame pointer to walk on irq and process stacks
We were using the frame pointer based stack walker on every
contexts in x86-32, but not in x86-64 where we only use the
seven-league boots on the exception stacks.
Use it also on irq and process stacks. This utterly accelerate
the captures.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'block/blk-timeout.c')
0 files changed, 0 insertions, 0 deletions