Date: Tue, 23 Jun 2009 21:33:26 +0000 (UTC) From: Ed Schouten <ed@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/kern tty.c Message-ID: <200906232133.n5NLXgAT073386@repoman.freebsd.org>
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ed 2009-06-23 21:33:26 UTC FreeBSD src repository Modified files: sys/kern tty.c Log: SVN rev 194769 on 2009-06-23 21:33:26Z by ed Use dcdwait to block threads to serialize writes. I suspect the usage of bgwait causes a lot of spurious wakeups when threads are blocked in the background, because they will be woken up each time a write() call is performed. Also wakeup dcdwait when the TTY is abandoned. Revision Changes Path 1.325 +3 -2 src/sys/kern/tty.c
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