Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?)

From: Howard Cochran
Date: Tue Apr 19 2016 - 21:35:44 EST


On Mon, Apr 18, 2016 at 5:06 PM, Jakob Unterwurzacher
<jakobunt@xxxxxxxxx> wrote:
> On 12.04.2016 13:09, Tejun Heo wrote:
>>>
>>> Probably you want to look into:
>>> https://lkml.org/lkml/2016/3/10/21
>>>
>>> The patch mentioned above solves the issue for me.
>>
>> Heh, I tracked it down to wb_over_bg_thresh() and fell asleep. Yeah,
>> that is the right fix.
>
> Works wonderfully now, thanks to everybody involved. Is it too late for 4.6?
>
> Best regards,
> Jakob
>
Jakob, et. al.

You're welcome. That performance problem stumped me for a couple of
weeks until tracked it down and submitted the fix.

Howard