Re: [Xenomai-help] x86_64 user/system process accounting

[Jan Kiszka <jan.kiszka@domain.hid>]

Kyle Howell wrote:
>> Jan Kiszka wrote:
>>> Kyle Howell wrote:
>>>>> Kyle Howell wrote:
>>>>>> I'm running Xenomai 2.4.1 against Linux 2.6.23.12 on an
>>>>> x86_64 (Core2)
>>>>>> system. I'm finding that all of my CPU cycles are being accounted
> 
>>>>>> as kernel time rather than user time. The correct processes are 
>>>>>> still billed, but the system is always 0% user. I'm wondering if
>>>>> this problem
>>>>>> is specific to my setup, or if it is a real bug. Can anyone else 
>>>>>> out there running x86_64 confirm or deny this behavior?
>> I currently have my fingers on a box with 2.6.23.14 with 
>> Xenomai 2.4.1 and I-pipe 1.4-01 (all standard), but I'm not 
>> able to reproduce your effect. Some simple shell loop nicely 
>> loads one CPU at 100%, and /proc/stat looks like this:
>>
>> cpu  38794 0 6325 411304 2882 0 3265 0
>> cpu0 34786 0 3094 189892 413 0 2716 0
>> cpu1 4007 0 3231 221411 2468 0 548 0
> 
> Well, I'm not sure whether to be happy or sad. Thanks for checking. 
> 
>> Could you send me your full .config?
> 
> I've attached my latest .config.

That one makes the difference: it's reproducible on some test box! /me
has to find the magic switch now...

Jan

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