Date: Thu, 29 Dec 2005 10:08:19 -0500 From: Brian Fundakowski Feldman <green@FreeBSD.org> To: Diomidis Spinellis <dds@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern kern_exec.c vfs_subr.c src/sys/sys vnode.h src/sys/ufs/ufs ufs_vnops.c src/sys/vm vm_mmap.c Message-ID: <20051229150819.GA27794@green.homeunix.org> In-Reply-To: <200512261347.jBQDlKUB022385@repoman.freebsd.org> References: <200512261347.jBQDlKUB022385@repoman.freebsd.org>
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On Mon, Dec 26, 2005 at 01:47:20PM +0000, Diomidis Spinellis wrote: > dds 2005-12-26 13:47:20 UTC > > FreeBSD src repository > > Modified files: (Branch: RELENG_6) > sys/kern kern_exec.c vfs_subr.c > sys/sys vnode.h > sys/ufs/ufs ufs_vnops.c > sys/vm vm_mmap.c > Log: > MFC changes from 2005.10.26: > Move execve's access time update functionality into a > new vfs_mark_atime() function, and use the new function > for performing efficient atime updates in mmap(). Do you have any particular use cases that are improved a lot by (seemingly) reducing gratuitous seeks for R/W file mappings? Substantial improvement for the general case of not-noatime? -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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