Re: [PATCH 0/3] TLB flush multiple pages per IPI v4

2015-08-31 Thread Sébastien Wacquiez
On 04/25/2015 07:45 PM, Mel Gorman wrote: > The performance impact is documented in the changelogs but in the optimistic > case on a 4-socket machine the full series reduces interrupts from 900K > interrupts/second to 60K interrupts/second. Hello to the list, this patch have a huge (positive)

Re: [PATCH 0/3] TLB flush multiple pages per IPI v4

2015-08-31 Thread Sébastien Wacquiez
On 04/25/2015 07:45 PM, Mel Gorman wrote: > The performance impact is documented in the changelogs but in the optimistic > case on a 4-socket machine the full series reduces interrupts from 900K > interrupts/second to 60K interrupts/second. Hello to the list, this patch have a huge (positive)

[PATCH 0/3] TLB flush multiple pages per IPI v4

2015-04-25 Thread Mel Gorman
The big change here is that I dropped the patch that batches TLB flushes from migration context. After V3, I realised that there are non-trivial corner cases there that deserve treatment in their own series. It did not help that I could not find a workload that was both migration and IPI

[PATCH 0/3] TLB flush multiple pages per IPI v4

2015-04-25 Thread Mel Gorman
The big change here is that I dropped the patch that batches TLB flushes from migration context. After V3, I realised that there are non-trivial corner cases there that deserve treatment in their own series. It did not help that I could not find a workload that was both migration and IPI