Date: Wed, 11 Dec 1996 15:15:21 -0800 From: Mike Haertel <haertel@ichips.intel.com> To: freebsd-smp@freebsd.org Subject: some questions concerning TLB shootdowns in FreeBSD Message-ID: <9612112315.AA58904@pdxcs078.intel.com>
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I'm curious how/when people are doing TLB shootdowns. Obviously when reducing permission or unmapping pages. How about for manipulations of the dirty/accessed bits? (Does FreeBSD use these?) And how is the shootdown implemented? One simple method: interprocessor interrupt to everyone concerned everyone meets at barrier manipulate page tables everyone flushes appropriate TLB entries and resumes Or is it done in some less conservative fashion? Thanks, Mike
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