Date: Sat, 2 May 2009 22:30:33 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/dev/acpica acpi_cpu.c Message-ID: <200905022230.n42MUqg8027301@repoman.freebsd.org>
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mav 2009-05-02 22:30:33 UTC
FreeBSD src repository
Modified files:
sys/dev/acpica acpi_cpu.c
Log:
SVN rev 191760 on 2009-05-02 22:30:33Z by mav
Avoid comparing negative signed to positive unsignad values. It was
leading to a bug, when C-state does not decrease on sleep shorter then
declared transition latency. Fixing this deprecates workaround for broken
C-states on some hardware.
By the way, change state selecting logic a bit. Instead of last sleep
time use short-time average of it. Global interrupts rate in system is a
quite random value, to corellate subsequent sleeps so directly.
Revision Changes Path
1.75 +11 -41 src/sys/dev/acpica/acpi_cpu.c
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