Messages in this thread | | | From | Will Deacon <> | Subject | [RFC PATCH 0/2] ARM: Remove any correlation between IPC and BogoMips value | Date | Fri, 3 May 2013 18:35:45 +0100 |
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Hi all,
This small patch set may look a little over a month late, but there is a serious reason for posting it.
When I moved the ARM delay loop over to using the architected timers rather than the CPU spinning loop (which has all the problems associated with cpu frequency scaling and what-not) I thought I was doing something useful for the port. However, it turns out that a surprising number of people have complained, and continue to complain, about the drop in their `BogoMIPs score'.
After some education, they usually give in, but I figured it could be solved by removing the reporting of this number to userspace altogether. Unfortunately, that affects the output of /proc/cpuinfo, which I'm not comfortable changing, so instead I've written this slightly tongue-in-cheek series reporting obviously bogus values in those fields in the hope that people don't interpret them as anything meaningful.
Comments welcome,
Will
Will Deacon (2): ARM: delay: print dummy values for bogomips init: calibrate: don't print out bogomips value on boot
arch/arm/Kconfig.debug | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ arch/arm/kernel/setup.c | 16 ++++++++-------- arch/arm/kernel/smp.c | 13 ++----------- init/calibrate.c | 8 +++----- 4 files changed, 61 insertions(+), 24 deletions(-)
-- 1.8.2.2
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