Re: [PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-20 Thread Matthew Wilcox
On Fri, Dec 14, 2007 at 11:13:40AM -0700, Matthew Wilcox wrote: I'll send it to our DB team to see if this improves our numbers at all. It does, by approximately 0.67%. This is about double the margin of error, and a significant improvement. Thanks! -- Intel are signing my paycheques ...

Re: [PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-16 Thread Mel Gorman
On (14/12/07 13:07), Mark Lord didst pronounce: SNIP That (also) works for me here, regularly generating 64KB I/O segments with SLAB. Brilliant. Thanks a lot Mark. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick

Re: [PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-14 Thread Mel Gorman
On (13/12/07 19:46), Mark Lord didst pronounce: Improved version, more similar to the 2.6.23 code: Fix page allocator to give better chance of larger contiguous segments (again). Signed-off-by: Mark Lord [EMAIL PROTECTED] Regrettably this interferes with anti-fragmentation because the

[PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-13 Thread Mark Lord
Improved version, more similar to the 2.6.23 code: Fix page allocator to give better chance of larger contiguous segments (again). Signed-off-by: Mark Lord [EMAIL PROTECTED] --- --- old/mm/page_alloc.c 2007-12-13 19:25:15.0 -0500 +++ linux-2.6/mm/page_alloc.c 2007-12-13

Re: [PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-13 Thread Andrew Morton
On Thu, 13 Dec 2007 19:57:29 -0500 James Bottomley [EMAIL PROTECTED] wrote: On Thu, 2007-12-13 at 19:46 -0500, Mark Lord wrote: Improved version, more similar to the 2.6.23 code: Fix page allocator to give better chance of larger contiguous segments (again). Signed-off-by: Mark

Re: [PATCH] fix page_alloc for larger I/O segments (improved)

2007-12-13 Thread Mark Lord
Andrew Morton wrote: On Thu, 13 Dec 2007 19:57:29 -0500 James Bottomley [EMAIL PROTECTED] wrote: On Thu, 2007-12-13 at 19:46 -0500, Mark Lord wrote: Improved version, more similar to the 2.6.23 code: Fix page allocator to give better chance of larger contiguous segments (again).