Date: Mon, 30 Mar 2009 09:43:19 +0800 From: David Xu <davidxu@freebsd.org> To: Julian Elischer <julian@elischer.org> Cc: Scott Long <scottl@samsco.org>, 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: <49D023B7.8070402@freebsd.org> In-Reply-To: <49D022EF.8030305@freebsd.org> References: <11609492.9579.1238167614335.JavaMail.root@vms070.mailsrvcs.net> <49CD0405.1060704@samsco.org> <49CD30E9.7030501@elischer.org> <49CEC261.4010803@freebsd.org> <49CF0523.8020905@elischer.org> <49D022EF.8030305@freebsd.org>
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David Xu wrote: > Julian Elischer wrote: > >> depends on the hardware. >> anyhow I was only saying it was possible, not necessarily >> good or even useful. >> >> > > I had done some works for thread private page shared by kernel > and userland when I was doing userland spinlock, if userland asks > a page, kernel will allocate it and put some interesting thing in > it by scheduler etcs, these code may be useful. > FYI: http://people.freebsd.org/~davidxu/schedctl/
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