Date: Mon, 19 Apr 1999 11:45:24 -0700 (PDT) From: Alan Cox <alc@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/i386 pmap.c Message-ID: <199904191845.LAA06552@freefall.freebsd.org>
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alc 1999/04/19 11:45:23 PDT
Modified files:
sys/i386/i386 pmap.c
Log:
_pmap_unwire_pte_hold and pmap_remove_page:
Use pmap_TLB_invalidate instead of invltlb_1pg to eliminate
unnecessary IPIs.
pmap_remove, pmap_protect and pmap_remove_pages:
Use pmap_TLB_invalidate_all instead of invltlb to eliminate
unnecessary IPIs.
pmap_copy:
Use cpu_invltlb instead of invltlb when updating APTDpde.
pmap_changebit:
Rather than deleting the unused "set bit" option (which may be
useful later), make pmap_changebit an inline that is used
by the new pmap_clearbit procedure.
Collectively, the first three changes reduce the number of TLB shootdown
IPIs by 1/3 for a kernel compile.
Revision Changes Path
1.231 +31 -13 src/sys/i386/i386/pmap.c
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