Messages in this thread | | | Date | Tue, 03 Aug 2010 17:00:57 +1000 | From | Nigel Cunningham <> | Subject | Re: Nigel's current for-rafael queue |
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Hi.
On 03/08/10 16:55, Pavel Machek wrote: > On Wed 2010-06-02 22:18:59, Nigel Cunningham wrote: >> Hi all. >> >> Here is my current patch queue. >> >> Taken together, the patches implement the separation of low level >> block i/o into a separate file, switch from using swap_map_pages >> to extents stores prior to the 'header' page and implement fully >> asynchronous (rather than batched I/O). I have only run it under >> VMware so far, but would estimate a doubling in speed due to the >> async i/o. > > Do you have any numbers from real hw? Could similar speedup be > accomplished by just increasing the batch size?
Yeah. I've been thinking I should really prepend a patch that lets you get the stats post-resume - unless you guys have some trick to enable you to read them that I haven't noticed yet :)
Nigel
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