On Mon 25-03-13 08:31:43, Fredrik Tolf wrote:
> On Sun, 24 Mar 2013, Bart Van Assche wrote:
> >On 03/24/13 06:12, Fredrik Tolf wrote:
> >>While this flush is running, I find that many a process goes into disk
> >>sleep waiting for the flush to complete. This includes the process
> >>manipulating th
On Sun, 24 Mar 2013, Eric Wong wrote:
Fredrik Tolf wrote:
It is worth noting, also, that this seems to be a situation
introduced somewhere between 2.6.26 and 2.6.32, because I started
noticing it when I upgraded from Debian 5.0 to 6.0. I've since tried
it on 3.2.0, 3.5.4 and 3.7.1, and it appea
On Sun, 24 Mar 2013, Bart Van Assche wrote:
On 03/24/13 06:12, Fredrik Tolf wrote:
While this flush is running, I find that many a process goes into disk
sleep waiting for the flush to complete. This includes the process
manipulating the mmapped file whenever it tries to redirty a page
currently
On 03/24/13 06:12, Fredrik Tolf wrote:
While this flush is running, I find that many a process goes into disk
sleep waiting for the flush to complete. This includes the process
manipulating the mmapped file whenever it tries to redirty a page
currently waiting to be flushed, but also, for instanc
Fredrik Tolf wrote:
> It is worth noting, also, that this seems to be a situation
> introduced somewhere between 2.6.26 and 2.6.32, because I started
> noticing it when I upgraded from Debian 5.0 to 6.0. I've since tried
> it on 3.2.0, 3.5.4 and 3.7.1, and it appears in every version.
> However, I
Dear list,
I've got an mmapped file (a Berkeley DB region file) with an access
pattern such that it gets some 10-40 MBs of dirtied pages a couple of
times per minute. When the VM comes around to flush these pages to disk,
that causes loads of problems. Since the dirty pages are rather
intersp
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