On Sat, Jun 07, 2014 at 11:24:56AM -0700, Linus Torvalds wrote:
> So we very recently (as in this merge window) merged a change to this
> very area, but that change was very specific to one case.
>
> Hillf's patch (below) apparently fixes the problem Felipe sees, and I
> have to say, his problem s
Michal Hocko wrote:
> On Fri 06-06-14 18:11:14, Felipe Contreras wrote:
> > On Fri, Jun 6, 2014 at 5:33 AM, Felipe Contreras
> > wrote:
> > > On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
> > >
> > >> Mel has a nice systemtap script (attached) to watch for stalls. Maybe
> > >> you can give
On Fri 06-06-14 18:11:14, Felipe Contreras wrote:
> On Fri, Jun 6, 2014 at 5:33 AM, Felipe Contreras
> wrote:
> > On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
> >
> >> Mel has a nice systemtap script (attached) to watch for stalls. Maybe
> >> you can give it a try?
> >
> > Is there any spe
On Sat, Jun 7, 2014 at 11:24 AM, Linus Torvalds
wrote:
>
> Comments? Mel, this code is mostly attributed to you, I'd like to hear
> what you think in particular.
In the meantime, I've removed the "nr_unqueued_dirty == nr_taken"
check for congestion_wait(), since I can't see how it can possibly be
So we very recently (as in this merge window) merged a change to this
very area, but that change was very specific to one case.
Hillf's patch (below) apparently fixes the problem Felipe sees, and I
have to say, his problem sounds a *lot* like the kind of horrible
performance I've seen with writing
On Sat, Jun 7, 2014 at 7:35 AM, wrote:
> Would you please try again based only on comment [1](based on v3.15-rc8)?
> thanks
> Hillf
>
> --- a/mm/vmscan.c Sat Jun 7 18:38:08 2014
> +++ b/mm/vmscan.c Sat Jun 7 20:08:36 2014
> @@ -1566,7 +1566,7 @@ shrink_inactive_list(unsigned long n
On Fri, Jun 6, 2014 at 5:33 AM, Felipe Contreras
wrote:
> On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
>
>> Mel has a nice systemtap script (attached) to watch for stalls. Maybe
>> you can give it a try?
>
> Is there any special configurations I should enable?
>
> I get this:
> semantic er
On Fri, Jun 6, 2014 at 6:03 AM, Michal Hocko wrote:
> On Fri 06-06-14 05:33:28, Felipe Contreras wrote:
>> On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
>>
>> > Mel has a nice systemtap script (attached) to watch for stalls. Maybe
>> > you can give it a try?
>>
>> Is there any special confi
On Thu, Jun 5, 2014 at 8:37 AM, Michal Hocko wrote:
> We had a similar report for opensuse. The common part was that there was
> an IO to a slow USB device going on.
Actually I've managed to narrow down my synthetic test, and all I need
is to copy a big file, and it even happens reading and writ
On Fri 06-06-14 05:33:28, Felipe Contreras wrote:
> On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
>
> > Mel has a nice systemtap script (attached) to watch for stalls. Maybe
> > you can give it a try?
>
> Is there any special configurations I should enable?
You need debuginfo and systemta
On Fri, Jun 6, 2014 at 4:16 AM, Michal Hocko wrote:
> Mel has a nice systemtap script (attached) to watch for stalls. Maybe
> you can give it a try?
Is there any special configurations I should enable?
I get this:
semantic error: unresolved arity-1 global array name, missing global
declaration?
On Fri, Jun 6, 2014 at 4:58 AM, wrote:
> Alternatively can we try wait_iff_congested(zone, BLK_RW_ASYNC, HZ/10) ?
I see the same problem with that code.
--
Felipe Contreras
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On Thu 05-06-14 09:00:10, Felipe Contreras wrote:
> On Thu, Jun 5, 2014 at 8:37 AM, Michal Hocko wrote:
> > On Thu 05-06-14 06:33:40, Felipe Contreras wrote:
>
> >> For a while I've noticed that my machine bogs down in certain
> >> situations, usually while doing heavy I/O operations, it is not j
On Thu, Jun 5, 2014 at 8:37 AM, Michal Hocko wrote:
> On Thu 05-06-14 06:33:40, Felipe Contreras wrote:
>> For a while I've noticed that my machine bogs down in certain
>> situations, usually while doing heavy I/O operations, it is not just the
>> I/O operations, but everything, including the gra
On Thu 05-06-14 06:33:40, Felipe Contreras wrote:
> Hi,
Hi,
> For a while I've noticed that my machine bogs down in certain
> situations, usually while doing heavy I/O operations, it is not just the
> I/O operations, but everything, including the graphical interface, even
> the mouse pointer.
>
Hi,
For a while I've noticed that my machine bogs down in certain
situations, usually while doing heavy I/O operations, it is not just the
I/O operations, but everything, including the graphical interface, even
the mouse pointer.
As far as I can recall this did not happen in the past.
I noticed
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