Date: Mon, 16 Mar 2009 23:08:38 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r189901 - projects/pnet/sys/net Message-ID: <200903162308.n2GN8ck3074729@svn.freebsd.org>
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Author: rwatson Date: Mon Mar 16 23:08:38 2009 New Revision: 189901 URL: http://svn.freebsd.org/changeset/base/189901 Log: Force 64-byte alignment of workstreams so that sequential arrays, indexed by CPU ID, are less likely to cause cache line thrashing. Modified: projects/pnet/sys/net/netisr2.c Modified: projects/pnet/sys/net/netisr2.c ============================================================================== --- projects/pnet/sys/net/netisr2.c Mon Mar 16 19:31:08 2009 (r189900) +++ projects/pnet/sys/net/netisr2.c Mon Mar 16 23:08:38 2009 (r189901) @@ -225,7 +225,7 @@ struct netisr_workstream { * Each protocol has per-workstream data. */ struct netisr_work nws_work[NETISR_MAXPROT]; -}; +} __aligned(64); /* * Kernel process associated with worker threads.
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