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Re: fs_notify patch

From: Roland McGrath
Subject: Re: fs_notify patch
Date: Tue, 25 Jun 2002 23:30:41 -0400 (EDT)

Oh, I thought you liked the MACH_SEND_NOTIFY plan.  
But this one is fine by me too, if Thomas has no complaints.

Using a zero timeout, a nonresponsive receiver stays on the list and causes
the server a system call for the failed message-send attempt every time
there is a new change.  The MACH_SEND_NOTIFY plan avoids that repeated
overhead but during a period of not keeping up, but imposes more overhead
at the beginning and end of a period of not keeping up.

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