diff options
| author | Dimitri Sivanich <[email protected]> | 2010-03-05 11:42:03 -0600 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2010-03-11 13:49:06 +0100 |
| commit | 938179b4f8cf8a4f11234ebf2dff2eb48400acfe (patch) | |
| tree | 3dd4f2f66b68bdf0f488856e567fae898b29d4f5 /lib/cpu-notifier-error-inject.c | |
| parent | 522dba7134d6b2e5821d3457f7941ec34f668e6d (diff) | |
x86: Improve Intel microcode loader performance
We've noticed that on large SGI UV system configurations,
running microcode.ctl can take very long periods of time. This
is due to the large number of vmalloc/vfree calls made by the
Intel generic_load_microcode() logic.
By reusing allocated space, the following patch reduces the time
to run microcode.ctl on a 1024 cpu system from approximately 80
seconds down to 1 or 2 seconds.
Signed-off-by: Dimitri Sivanich <[email protected]>
Acked-by: Dmitry Adamushko <[email protected]>
Cc: Avi Kivity <[email protected]>
Cc: Bill Davidsen <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/cpu-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions