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.
Wu
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