Date: Fri, 27 Mar 2009 13:02:49 -0700 From: Julian Elischer <julian@elischer.org> To: Scott Long <scottl@samsco.org> Cc: Sergey Babkin <babkin@verizon.net>, freebsd-hackers@freebsd.org, attilio@freebsd.org, phk@phk.freebsd.dk, freebsd-current@freebsd.org, prashant.vaibhav@gmail.com Subject: Re: Improving the kernel/i386 timecounter performance (GSoC proposal) Message-ID: <49CD30E9.7030501@elischer.org> In-Reply-To: <49CD0405.1060704@samsco.org> References: <11609492.9579.1238167614335.JavaMail.root@vms070.mailsrvcs.net> <49CD0405.1060704@samsco.org>
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Scott Long wrote: > I've been talking about this for years. All I need is help with the VM > magic to create the page on fork. I also want two pages, one global > for gettimeofday (and any other global data we can think of) and one > per-process for static data like getpid/getgid. interestingly it is even feasible to have a per-thread page.. it requires that the scheduler change a page table entry tough.
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