diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 22:01:35 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-01 22:01:35 +0100 |
| commit | 7d20dd3294b31c11a5f642a3e342174ef8da7c73 (patch) | |
| tree | 09bb46974762cf48a9c30017016cbcfc46939c16 /arch/x86/kernel/fpu/xstate.c | |
| parent | Merge tag 'sched-core-2021-11-01' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| parent | x86/apic: Reduce cache line misses in __x2apic_send_IPI_mask() (diff) | |
| download | linux-7d20dd3294b31c11a5f642a3e342174ef8da7c73.tar.xz linux-7d20dd3294b31c11a5f642a3e342174ef8da7c73.zip | |
Merge tag 'x86-apic-2021-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/apic update from Thomas Gleixner:
"A single commit which reduces cache misses in __x2apic_send_IPI_mask()
significantly by converting x86_cpu_to_logical_apicid() to an array
instead of using per CPU storage.
This reduces the cost for a full broadcast on a dual socket system
with 256 CPUs from 33 down to 11 microseconds"
* tag 'x86-apic-2021-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Reduce cache line misses in __x2apic_send_IPI_mask()
Diffstat (limited to 'arch/x86/kernel/fpu/xstate.c')
0 files changed, 0 insertions, 0 deletions