Module Name:	syssrc
Committed By:	thorpej
Date:		Thu Dec  7 05:59:07 UTC 2000

Modified Files:
	syssrc/sys/arch/alpha/alpha: pmap.c

Log Message:
Use a pool cache for L1 PT pages.  When we can allocate a cached,
constructed L1 PT page, this saves us from having to copy the kernel
L1 PTEs into the user L1 PT page at fork time (it's already set up).

A simple test shows a 1 second improvement of a rapid fork/exit operation
10000 times on a 533MHz 21164A (12s to 11s).


To generate a diff of this commit:
cvs rdiff -r1.151 -r1.152 syssrc/sys/arch/alpha/alpha/pmap.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.