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| author |   Witold Baryluk <baryluk@smp.if.uj.edu.pl> | 2009-03-17 21:15:44 +0100 |
|---|---|---|
| committer |   Steven Rostedt <srostedt@redhat.com> | 2009-03-17 23:10:43 -0400 |
| commit | 97e7e4f391cac2b00417b581b432533d245d4fd0 (patch) | |
| tree | d51d4776962f5838f4cb4cc804d2c94db185527d /kernel/extable.c | |
| parent | tracing: add global-clock option to provide cross CPU clock to traces (diff) | |
| download | wireguard-linux-97e7e4f391cac2b00417b581b432533d245d4fd0.tar.xz wireguard-linux-97e7e4f391cac2b00417b581b432533d245d4fd0.zip | |
tracing: optimization of branch tracer
Impact: better performance for if branch tracer
Use an array to count the hit and misses of a conditional instead
of using another conditional. This cuts down on saturation of branch
predictions and increases performance of modern pipelined architectures.
Signed-off-by: Witold Baryluk <baryluk@smp.if.uj.edu.pl>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Diffstat (limited to 'kernel/extable.c')
0 files changed, 0 insertions, 0 deletions