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Groups > linux.kernel > #1376358
| From | Tejun Heo <tj@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) |
| Date | 2016-04-12 02:30 +0200 |
| Message-ID | <rmUno-6qa-3@gated-at.bofh.it> (permalink) |
| References | (3 earlier) <rdgfw-7bg-11@gated-at.bofh.it> <rh4fM-6NC-3@gated-at.bofh.it> <rhLkK-3al-9@gated-at.bofh.it> <ritlL-15d-5@gated-at.bofh.it> <rmF51-2CR-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hello, On Mon, Apr 11, 2016 at 10:04:42AM +0200, Jakob Unterwurzacher wrote: > What seems to be happening in the kernel is that the estimated device bandwith > drops to zero. I'm not even sure how this works for FUSE, but that's what I > gathered from some printk debugging. Yeah, writeback bw getting messed up is the most likely cause. Prolly some silly bug. I can reproduce the problem. Looking into it. Thanks. -- tejun
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Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Jakob Unterwurzacher <jakobunt@gmail.com> - 2016-04-11 10:10 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Tejun Heo <tj@kernel.org> - 2016-04-12 02:30 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Ashish Sangwan <ashishsangwan2@gmail.com> - 2016-04-12 11:30 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Tejun Heo <tj@kernel.org> - 2016-04-12 13:10 +0200
Re: [fuse-devel] Horrible mmap write performance (kernel writeback issue?) Sedat Dilek <sedat.dilek@gmail.com> - 2016-04-13 09:30 +0200
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