Date: Mon, 30 Aug 1999 15:01:32 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> Cc: Jonathan Lemon <jlemon@americantv.com>, current@FreeBSD.ORG Subject: Re: HEADS UP Message-ID: <Pine.BSF.3.95.990830144937.339I-100000@current1.whistle.com> In-Reply-To: <199908302127.OAA67008@gndrsh.dnsmgr.net>
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On Mon, 30 Aug 1999, Rodney W. Grimes wrote: > > I've just committed the revised TCP timer code. There are some > > user visible changes: > > > > User visible TCP timers are now in units of the system clock > > (10ms for the i386), not those of the slowtimeout (500ms). So > > if you have customized one of these values, (e.g.: net.inet.tcp.keepintvl), > > you'll need to multiply it appropriately to keep the same interval. I don't want to sound ungrateful, but couldn't we have defined these in terms of Usecs and translated? I mean I sometimes compile hz to be 1000 for some reasons.. this means that I have to reset all these values in my rc scripts. As an example the kern.quantum variable that will always be the same despite a redefinition of Hz. It's stored internally in terms of Hz but exported in uSecs. > > > > Also, some new sysctls have been added: > > I didn't think I would ever see this!! Good job, hats off to you and > assoctiates! > > > > > net.inet.tcp.delacktime: 20 > > Specifies the timeout for delayed acks (200ms). > > net.inet.tcp.slowstart_flightsize: 1 > > Specifies how many packets are included in the initial > > slow-start flight. Setting this value to 0 will probably > > result in a non-working system. Choosing a high value > > would be considered antisocial. > > net.inet.tcp.local_slowstart_flightsize: 65535 > > Same as above, but only applies to slowstart on "local" > > networks. Note that the flightsize is constrained by > > the receiver's advertised window size. > > One question though, how is ``local'' defined? > > > -- > Rod Grimes - KD7CAX - (RWG25) rgrimes@gndrsh.dnsmgr.net > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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