Messages in this thread | | | Date | Thu, 3 Jun 2010 18:34:50 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: [PATCH] use unfair spinlock when running on hypervisor. |
| |
On Thu, Jun 03, 2010 at 06:28:21PM +0530, Srivatsa Vaddagiri wrote: > Ok got it - although that approach is not advisable in some cases for ex: when > the lock holder vcpu and lock acquired vcpu are scheduled on the same pcpu by > the hypervisor (which was experimented with in [1] where they foud a huge hit in > perf).
1. http://lkml.org/lkml/2010/4/13/464
- vatsa
| |