Date: Thu, 22 Apr 1999 18:54:52 +0100 From: Tony Finch <dot@dotat.at> To: hackers@freebsd.org Subject: Re: Matthew Dillon's patch to VMIO directories Message-ID: <E10aNgZ-0002kq-00@fanf.noc.demon.net> In-Reply-To: <371F30F5.2B56818F@pobox.com> References: <Pine.GSO.3.96.990421210321.3210B-100000@sol.cs.binghamton.edu>
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Niall Smart <niall@pobox.com> wrote: >> The first time I run find command, the time elapsed is 30 seconds, >> comparable to the kernel without patch. The second time I run find >> command, the time elapsed is only 2 seconds. And if I interprete the >> output of time correctly, the first time we did 2284 I/O read, 0 I/O >> write. The second time we did 0 I/O read, 259 I/O write. > >Would it be correct to attribute the writes due to paging >caused by the memory used to cache directory entries, or >is this more likely to be noise? atime? but why didn't that happen during the first run? Tony. -- f.a.n.finch dot@dotat.at fanf@demon.net Arthur: "Oh, that sounds better, have you worked out the controls?" Ford: "No, we just stopped playing with them." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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