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    SubjectRe: 32GB SSD on USB1.1 P3/700 == ___HELL___ (2.6.34-rc3)
    Hi,

    On Wed, Apr 07, 2010 at 03:00:50PM +0800, Wu Fengguang wrote:
    > Many applications (this one and below) are stuck in
    > wait_on_page_writeback(). I guess this is why "heavy write to
    > irrelevant partition stalls the whole system". They are stuck on page
    > allocation. Your 512MB system memory is a bit tight, so reclaim
    > pressure is a bit high, which triggers the wait-on-writeback logic.

    "Your 512MB system memory is a bit tight".
    Heh, try to survive making such a statement 15 years ago ;)
    (but you likely meant this in the context of inducing a whopping 300MB write)

    Thank you for your reply, I'll test the patch ASAP (with large writes
    and Firefox sync mixed in), maybe this will improve things already.

    Andreas Mohr


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