Date: Sat, 21 Feb 2015 19:11:15 -0800 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: New 64-bit pmap Message-ID: <54E948D3.2050201@freebsd.org>
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I wrote a new memory management implementation for 64-bit PPC systems last week to get greater concurrency on big SMP systems. On a 32-thread POWER8 system, this results in a factor of two speedup in buildworld time. Smaller systems should see little change. Since this is a nearly ground-up rewrite of the pmap layer, I'd appreciate any testing before pushing the code into HEAD. The patch is at http://people.freebsd.org/~nwhitehorn/ppc64-new-pmap.diff. -Nathan
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