Re: [patch 9/9] mm: thrash detection-based file cache sizing v4

2013-08-22 Thread Metin Doslu
Hey everbody, I run following tests, and it shows in what cases this patch is beneficial for us. Test Environment: * Ubuntu Server 12.04.2 LTS Linux 3.2.0-40-virtual #64-Ubuntu on EC2. * 15 GB memory (DMA32 4GB + Normal 11GB). Test Settings: We have two PostgreSQL tables with same size of 9.75

Re: [patch 9/9] mm: thrash detection-based file cache sizing v4

2013-08-20 Thread Andrew Morton
On Sat, 17 Aug 2013 15:31:14 -0400 Johannes Weiner wrote: > This series solves the problem by maintaining a history of pages > evicted from the inactive list, enabling the VM to tell streaming IO > from thrashing and rebalance the page cache lists when appropriate. I can't say I'm loving the pat