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| author | John Levon <levon@movementarian.org> | 2003-05-25 07:42:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2003-05-25 07:42:35 -0700 |
| commit | 0d22b578d5e540aa4d046d8f9eebfe5166d3f4a4 (patch) | |
| tree | 2c426ca002264e500629a94b840160b2c4ed5a23 /include | |
| parent | 573eba2f372bbc7de53c85b0fadbff4acb130293 (diff) | |
[PATCH] OProfile: minimize sample error
The code that attempts to reset last_task and in_kernel has a race
against samples appearing during the handling of the buffers, that
causes a small number of mis-attribution of samples. Closing the
window is non-obvious, and not worth it, so we just make it smaller.
Even without the patch, there seem to be few such "bad" samples
because its effects are mitigated on a switch into userspace or
a task switch.
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions