Date: Sun, 25 Jun 2000 17:13:07 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: jasone@canonware.com (Jason Evans) Cc: smp@FreeBSD.ORG Subject: Re: SMP meeting summary Message-ID: <200006251713.KAA09348@usr02.primenet.com> In-Reply-To: <20000624235605.D8965@blitz.canonware.com> from "Jason Evans" at Jun 24, 2000 11:56:05 PM
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> - Netgraph poses locking performance problems, since locks have to be > released at multiple potential transfer points, regardless of whether > Netgraph is in use. This problem also exists with System V STREAMS. > During the meeting we didn't come to a clear consensus on how much of > a problem this really is. FWIW, Soft Updates will have similar issues. In Streams, this was addressed by removing two primitives, and creating what are called "priority bands" to deal with the issue (I worked for Novell USG when UnixWare was going to 2.0 and integrating the ES/MP code into the SVR4 base, and saw much of this happen). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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