From: Knut Petersen <Knut_Petersen@t-online.de>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>
Subject: [BUG] wrong bogomips values with kernel 2.6.16
Date: Tue, 21 Mar 2006 14:10:00 +0100 [thread overview]
Message-ID: <441FFB28.5050609@t-online.de> (raw)
Hi everybody!
System: AOpen i915GMm-HFS motherboard, kernel 2.6.16
CPU: Intel(R) Pentium(R) M processor 1.86GHz stepping 08
During startup a BogoMips value of 3730.21 is calculated. That
should be the correct value for the cpu running at full speed. But:
"cat /proc/cpuinfo" on the idle system displays the correct cpu speed, but
a wrong bogomips value:
cpu MHz : 800.000
bogomips : 3730.21
"cat /proc/cpuinfo" on the busy system displays the correct cpu speed
too, but
again a wrong bogomips value:
cpu MHz : 1867.000
bogomips : 8705.38
The relevant snippets from .config:
CONFIG_X86_PC=y
CONFIG_MPENTIUMM=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_DEBUG=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_X86_ACPI_CPUFREQ=y
CONFIG_X86_SPEEDSTEP_CENTRINO=y
CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
cu,
knut
next reply other threads:[~2006-03-21 13:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-21 13:10 Knut Petersen [this message]
2006-03-21 18:10 ` [BUG] wrong bogomips values with kernel 2.6.16 Linus Torvalds
2006-03-22 5:19 ` Knut Petersen
2006-03-22 15:30 ` Linus Torvalds
2006-03-22 17:35 ` Knut Petersen
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