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authorDavi Arnaut <davi@haxent.com.br>2007-05-23 13:58:04 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 20:14:14 -0700
commitb3762bfc8d046342db664d855f8f875e8a4c2ca1 (patch)
treefefa7bf1aecbdf458f31d4896498282f5ee9d1e7 /fs/ecryptfs/debug.c
parent0532cb427ed2a5957d39e98cb5a4741b68fc6102 (diff)
signalfd: retrieve multiple signals with one read() call
Gathering signals in bulk enables server applications to drain a signal queue (almost full of realtime signals) more efficiently by reducing the syscall and file look-up overhead. Very similar to the sigtimedwait4() call described by Niels Provos, Chuck Lever, and Stephen Tweedie in a paper entitled "Analyzing the Overload Behavior of a Simple Web Server". The paper lists more details and advantages. Signed-off-by: Davi E. M. Arnaut <davi@haxent.com.br> Acked-by: Davide Libenzi <davidel@xmailserver.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs/debug.c')
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