Date: Fri, 26 Oct 2001 15:09:48 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: John Baldwin <jhb@FreeBSD.ORG>, arch@FreeBSD.ORG, Peter Wemm <peter@wemm.org>, Bakul Shah <bakul@bitblocks.com> Subject: Re: 64 bit times revisited.. Message-ID: <200110262209.f9QM9m739133@apollo.backplane.com> References: <9133.1004133666@critter.freebsd.dk>
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:> Before this gets misinterpreted, the 'ticks' I am talking about is :> not the kernel timer interrupt ticks... it's the high resolution cpu :> or 825x ticks we get. e.g. frequency dependant on the timer we use. : :Matt, that is the mess Linux is fighting with. We have had a superior :solution for years by now which even allows us to change timekeeping :hardware on the fly as we find more suitable timebases. : :-- :Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 I don't consider our solution to be superior, I consider it to be a huge mess. It's a huge hack to deal with i386-specific time counter issues and, frankly, it doesn't even do that good a job at it. We've been plagued by backwards-time notifications and weird things happening for YEARS now. It is far too sensitive to environmental conditions like laptops going into sleep mode and such. One unbelievably large mess. -Matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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