Re: How to make kernel block layer generate bigger request in the request queue?

2010-04-12 Thread James Bottomley
On Mon, 2010-04-12 at 14:26 -0400, Martin K. Petersen wrote: > > "James" == James Bottomley writes: > > >> Correct. It's quite unlikely for pages to be contiguous so this is > >> the best we can do. > > James> Actually, average servers do about 50% contiguous on average > James> since we ch

Re: [PATCH 00/11] ARM: PrimeCell DMA Interface v5

2010-04-12 Thread Russell King - ARM Linux
On Sun, Apr 11, 2010 at 04:13:39PM +0200, Linus Walleij wrote: > Russell, > > are you OK with pushing these patches from this series: > > patch 01 - > patch 08 - DMA for drivers/serial/amba-pl011.c > > through Dan's async_tx / DMAengine tree? > > I think those are the ones which need your Acke

Re: How to make kernel block layer generate bigger request in the request queue?

2010-04-12 Thread Martin K. Petersen
> "James" == James Bottomley writes: >> Correct. It's quite unlikely for pages to be contiguous so this is >> the best we can do. James> Actually, average servers do about 50% contiguous on average James> since we changed the mm layer to allocate in ascending physical James> page order ...