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Groups > linux.kernel > #1382047 > unrolled thread
| Started by | Jakob Unterwurzacher <jakobunt@gmail.com> |
|---|---|
| First post | 2016-04-18 23:10 +0200 |
| Last post | 2016-04-25 10:10 +0200 |
| Articles | 3 — 3 participants |
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Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Jakob Unterwurzacher <jakobunt@gmail.com> - 2016-04-18 23:10 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Howard Cochran <hcochran@kernelspring.com> - 2016-04-20 03:40 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Sedat Dilek <sedat.dilek@gmail.com> - 2016-04-25 10:10 +0200
| From | Jakob Unterwurzacher <jakobunt@gmail.com> |
|---|---|
| Date | 2016-04-18 23:10 +0200 |
| Subject | Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) |
| Message-ID | <rpoAH-3RI-37@gated-at.bofh.it> |
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
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| From | Howard Cochran <hcochran@kernelspring.com> |
|---|---|
| Date | 2016-04-20 03:40 +0200 |
| Subject | Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) |
| Message-ID | <rpPhx-8ai-15@gated-at.bofh.it> |
| In reply to | #1382047 |
On Mon, Apr 18, 2016 at 5:06 PM, Jakob Unterwurzacher <jakobunt@gmail.com> 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
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| From | Sedat Dilek <sedat.dilek@gmail.com> |
|---|---|
| Date | 2016-04-25 10:10 +0200 |
| Subject | Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) |
| Message-ID | <rrJKH-2lq-19@gated-at.bofh.it> |
| In reply to | #1382971 |
On Wed, Apr 20, 2016 at 3:35 AM, Howard Cochran <hcochran@kernelspring.com> wrote: > On Mon, Apr 18, 2016 at 5:06 PM, Jakob Unterwurzacher > <jakobunt@gmail.com> 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. > What has happened to "writeback: Fix performance regression in wb_over_bg_thresh()"? I checked Linux v4.6-rc5, it is not included. Is it in another Git tree? If yes, where? - sed@ -
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