Date: Sat, 12 Jan 2002 22:27:29 -0800 (PST) From: k Macy <kip_macy@yahoo.com> To: freebsd-hackers@freebsd.org, freebsd-current@freebsd.org Subject: How well does EVFILT_AIO work? Message-ID: <20020113062729.45895.qmail@web14003.mail.yahoo.com>
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Has anybody used AIO in conjunction with kevent? I am seeing as much as a 12 second latency between when I do an 8k aio_write to a file on local disk and kevent returning its completion (I'm calling kevent every ~20ms). Using regular writes works fine, but this is a multi-threaded application so they cause the entire process to block. I'm trying to use kevent because using AIO with signals doesn't appear to work with threads as the siginfo_t passed to the signal handler doesn't get filled out in spite of the fact that SA_SIGINFO is being set. If no one has any ideas I'll file a PR with the code that demonstrates the various bugs. I'm running 20010106-CURRENT. -Kip __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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