Date: Fri, 08 Sep 2000 22:35:13 -0700 From: Julian Elischer <julian@elischer.org> To: Alfred Perlstein <bright@wintelcom.net> Cc: net@freebsd.org, chat@freebsd.org Subject: Re: threading tcp/ip is fun. Message-ID: <39B9CC11.41C67EA6@elischer.org> References: <20000908154320.J12231@fw.wintelcom.net>
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Alfred Perlstein wrote: > > http://www.wintelcom.net/~bright/thrsock.diff > > Should refresh every two minutes as I progress through the tcp/ip > code in an attempt to thread it. > > If you have suggestions or works in progress please let me know. There is a lot of use of "atomic_ad_long()" nearly always with an increment of '1'. Would there be any advantage of having an "atomic_increment_long()"? (a_incl()) with the introduction of heavier weight operations at low level (e.g."atomic_add_long(a , 1);" vs "a += 1;" the optimal way if unrolling loops and threading decision trees may change.. e.g. if (XXX) a_incl(a); if (YYY) a_incl(b); if (ZZZ) a_incl(c); might be slower than: small_lock() if (XXX)a+=1; if (YYY)b+=1; if (ZZZ)c+=1; drop_small_lock(); (in this case not likely, but it's something to keep in mind I guess.) > > -- > -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] > "I have the heart of a child; I keep it in a jar on my desk." > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message -- __--_|\ Julian Elischer / \ julian@elischer.org ( OZ ) World tour 2000 ---> X_.---._/ presently in: Perth v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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