Messages in this thread | | | Date | Sun, 19 Mar 2006 11:47:51 +0800 | From | Wu Fengguang <> | Subject | Re: [PATCH 00/23] Adaptive read-ahead V11 |
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On Sat, Mar 18, 2006 at 10:10:43PM -0500, Jon Smirl wrote: > This is probably a readahead problem. The lighttpd people that are > encountering this problem are not regular lkml readers. > > http://bugzilla.kernel.org/show_bug.cgi?id=5949
[QUOTE] My general conclusion is that since they were able to write a user space implementation that avoids the problem something must be broken in the kernel readahead logic for sendfile().
Maybe the user space solution does the trick by using a larger window size?
IMHO, the stock read-ahead is not designed with extremely high concurrency in mind. However, 100 streams should not be a problem at all.
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