diff options
| author | Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> | 2013-10-21 21:35:08 +0530 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-26 12:23:22 +0200 |
| commit | 4c4e4f61368164f326fe59e2156c70d7faa72c17 (patch) | |
| tree | 3507a3abdf0622bb04503f07941b52d2088a3bd6 /kernel/hung_task.c | |
| parent | 1232e3807f597748d437ab8680873af21fa81da9 (diff) | |
x86/locking/kconfig: Update paravirt spinlock Kconfig description
Since the paravirt spinlock optimizations went into the v3.12 kernel
we have a very good performance benefit for paravirtualized KVM / Xen
kernels. Also we no longer suffer from 5% side effect on native
kernel that is mentioned in the Kconfig entry.
So update the Kconfig entry accordingly.
pvspinlock benefit on KVM link:
https://lkml.org/lkml/2013/8/6/178
Attilio's tests on native kernel impact:
http://blog.xen.org/index.php/2012/05/11/benchmarking-the-new-pv-ticketlock-implementation/
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: <konrad.wilk@oracle.com>
Cc: <linux@eikelenboom.it>
Cc: <gleb@redhat.com>
Cc: <pbonzini@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382371508-3843-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com
[ Updated the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/hung_task.c')
0 files changed, 0 insertions, 0 deletions