Date: Sun, 1 Feb 2004 12:14:01 -0800 (PST) From: Alan Cox <alc@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 pmap.c Message-ID: <200402012014.i11KE1PD082693@repoman.freebsd.org>
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alc 2004/02/01 12:14:01 PST
FreeBSD src repository
Modified files:
sys/i386/i386 pmap.c
Log:
Eliminate all TLB shootdowns by pmap_pte_quick(): By temporarily pinning
the thread that calls pmap_pte_quick() and by virtue of the page queues
lock being held, we can manage PADDR1/PMAP1 as a CPU private mapping.
The most common effect of this change is to reduce the overhead of the page
daemon on multiprocessors.
In collaboration with: tegge
Revision Changes Path
1.462 +52 -13 src/sys/i386/i386/pmap.c
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