The default value for kern.bufcachepercent sysctl-variable is now 20 percent, but the documentation for sysctl(3) still claims it is 10%.
Index: lib/libc/gen/sysctl.3 =================================================================== RCS file: /usr/cvs/OpenBSD/src/lib/libc/gen/sysctl.3,v retrieving revision 1.208 diff -u -r1.208 sysctl.3 --- lib/libc/gen/sysctl.3 3 Sep 2011 22:59:07 -0000 1.208 +++ lib/libc/gen/sysctl.3 20 Sep 2011 18:09:04 -0000 @@ -503,7 +503,7 @@ This structure contains the time that the system was booted. .It Dv KERN_BUFCACHEPERCENT The maximum percentage of physical memory the buffer cache may use; -the default is 10%. +the default is 20%. .It Dv KERN_CCPU The scheduler exponential decay value. .It Dv KERN_CLOCKRATE
