Author: ivoras
Date: Sun Jul 18 10:15:33 2010
New Revision: 210217
URL: http://svn.freebsd.org/changeset/base/210217
Log:
In keeping with the Age-of-the-fruitbat theme, scale up hirunningspace on
machines which can clearly afford the memory.
This is a somewhat conservative version of the patch - more fine tuning may be
necessary.
Idea from: Thread on hackers@
Discussed with: alc
Modified:
head/sys/kern/vfs_bio.c
Modified: head/sys/kern/vfs_bio.c
==============================================================================
--- head/sys/kern/vfs_bio.c Sun Jul 18 08:54:31 2010 (r210216)
+++ head/sys/kern/vfs_bio.c Sun Jul 18 10:15:33 2010 (r210217)
@@ -621,7 +621,9 @@ bufinit(void)
lobufspace = hibufspace - MAXBSIZE;
lorunningspace = 512 * 1024;
- hirunningspace = 1024 * 1024;
+ hirunningspace = lmin(roundup(hibufspace/64, MAXBSIZE), 16*1024*1024);
+ if (hirunningspace < 1024 * 1024)
+ hirunningspace = 1024 * 1024;
/*
* Limit the amount of malloc memory since it is wired permanently into
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