Comment 237 for bug 197762

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Digital5700 (edward-edwardh) wrote : Re: file transfers on USB flash key (pendrive) are slowing down with time

elevator=noop solved it for me also, but just as murz says: sometimes under heavy disk activity (dd iso -> empty sata drive) some parts of Xorg will pause, sometimes for several minutes.

I can also see that noop writes to the usb drives without pausing. Normal elevator writes for a few seconds, pause for 1.5 seconds and then keep writing. Noop writes without pauses.