Use BFQ or operationally noop. CFQ IO scheduler tends to do this. Even for me. 2011/8/27 Ray Rashif <schiv@archlinux.org>:
On 27 August 2011 12:34, Madhurya Kakati <mkakati2805@gmail.com> wrote:
On Sat, Aug 27, 2011 at 6:49 AM, Loui Chang <louipc.ist@gmail.com> wrote:
On Sat 27 Aug 2011 09:12 +0530, Madhurya Kakati wrote:
Hi, My system tends to slow down a lot when I copy files to and from a pen drive or even from one hard disk to another. Even my mouse cursor slows down. The system becomes almost unusable. I more than enough RAM and I am using a tiling window manager. So I am not even using a lot of RAM. Why is this happening? I can't work on my system if I run any large file copy/move operation. Please help. Thanks.
Your hard drive might be dying. Back up your files now.
Seriously? This doesn't happen in Windows 7. Also when I copy files from my new HDD to a pendrive my system still slows down. The new HDD is less than a month old.
This is a scheduler bottleneck, and AFAICR, a Linux deficiency that Con Kolivas trie(s|d) to improve with the BFS. From personal experience, BFS was much, much better, to the point that there was no noticeable slow-down.
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