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

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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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