Date: Fri, 1 Mar 2013 19:54:26 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r247569 - projects/calloutng/sys/kern Message-ID: <201303011954.r21JsQvs068936@svn.freebsd.org>
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Author: mav Date: Fri Mar 1 19:54:25 2013 New Revision: 247569 URL: http://svnweb.freebsd.org/changeset/base/247569 Log: Don't disable interrupts on 64-bit arches to read the last hardclock time. This adds few more megabits in iperf test on Atom D525. Modified: projects/calloutng/sys/kern/kern_timeout.c Modified: projects/calloutng/sys/kern/kern_timeout.c ============================================================================== --- projects/calloutng/sys/kern/kern_timeout.c Fri Mar 1 19:42:50 2013 (r247568) +++ projects/calloutng/sys/kern/kern_timeout.c Fri Mar 1 19:54:25 2013 (r247569) @@ -924,10 +924,14 @@ callout_reset_sbt_on(struct callout *c, * This value is per-CPU, but it is equal for all * active ones. */ +#ifdef __LP64__ + to_sbt = DPCPU_GET(hardclocktime); +#else spinlock_enter(); to_sbt = DPCPU_GET(hardclocktime); spinlock_exit(); #endif +#endif if ((flags & C_HARDCLOCK) == 0) to_sbt += tick_sbt; } else
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