Re: Nigel's current for-rafael queue

Hi.

On 03/08/10 16:55, Pavel Machek wrote:

On Wed 2010-06-02 22:18:59, Nigel Cunningham wrote:

quoted

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