Date: Mon, 25 Oct 2010 14:05:25 +0000 (UTC) From: Ivan Voras <ivoras@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r214342 - head/sys/kern Message-ID: <201010251405.o9PE5PRm067536@svn.freebsd.org>
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Author: ivoras Date: Mon Oct 25 14:05:25 2010 New Revision: 214342 URL: http://svn.freebsd.org/changeset/base/214342 Log: Reduce the difference between hirunningspace and lorunningspace, it should help interactivity in edge cases. Modified: head/sys/kern/vfs_bio.c Modified: head/sys/kern/vfs_bio.c ============================================================================== --- head/sys/kern/vfs_bio.c Mon Oct 25 14:04:21 2010 (r214341) +++ head/sys/kern/vfs_bio.c Mon Oct 25 14:05:25 2010 (r214342) @@ -623,16 +623,16 @@ bufinit(void) lobufspace = hibufspace - MAXBSIZE; /* - * Note: The 16 MB upper limit for hirunningspace was chosen + * Note: The 16 MiB upper limit for hirunningspace was chosen * arbitrarily and may need further tuning. It corresponds to * 128 outstanding write IO requests (if IO size is 128 KiB), * which fits with many RAID controllers' tagged queuing limits. - * The lower 1 MB limit is the historical upper limit for + * The lower 1 MiB limit is the historical upper limit for * hirunningspace. */ hirunningspace = lmax(lmin(roundup(hibufspace / 64, MAXBSIZE), 16 * 1024 * 1024), 1024 * 1024); - lorunningspace = roundup(hirunningspace / 2, MAXBSIZE); + lorunningspace = roundup((hirunningspace * 2) / 3, MAXBSIZE); /* * Limit the amount of malloc memory since it is wired permanently into
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