From: Venkatesh Pallipadi Date: Thu, 25 Aug 2005 19:59:00 +0000 (-0400) Subject: [ACPI] Reduce acpi-cpufreq switching latency by 50% X-Git-Tag: v2.6.14-rc1~256^2~14^2~15 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d395bf12d1ba61437e546eb642f0d7ea666123ff;p=pandora-kernel.git [ACPI] Reduce acpi-cpufreq switching latency by 50% The acpi-cpufreq driver does a P-state get after a P-state set to verify whether set went through successfully. This test is kind of redundant as set goes throught most of the times, and the test is also expensive as a get of P-states can take a lot of time (same as a set operation) as it goes through SMM mode. Effectively, we are doubling the P-state latency due to this get opertion. momdule parameter "acpi_pstate_strict" restores orginal paranoia. http://bugzilla.kernel.org/show_bug.cgi?id=5129 Signed-off-by: Venkatesh Pallipadi Signed-off-by: Len Brown --- Reading git-diff-tree failed