Kernel configuration options
bernie at codewiz.org
Thu Jan 3 01:38:49 EST 2008
John Richard Moser wrote:
> Albert Cahalan wrote:
>> [various people]
>> Since there are no clock ticks when idle, you may as well go
>> with 1000. It's better for music and video.
> Good idea!
We can't enable it without doing some power profiling first.
cjb has been doing lots of work in this area, so I wonder
what he thinks about it.
Many distros compromise on 250Hz, which provides more than
enough precision for humans, while being 4x cheaper than 1000Hz.
>> Those debug symbols are required so that "ps -el" can tell you
>> where a process is stuck. Better:
>> ps -emostat,wchan:22,pid,tid,pcpu,comm,args
> I did not know about this! :)
Me neither... "emostat", lol!
>> Also, do not remove hugetlbfs. One could use that for speed
>> in programs that deal with big arrays. I've actually seen the
>> difference in a performance class I took. It can really matter.
> Nods. That comment was because someone said there were no huge pages on
> the Geode, which would render hugetlbfs useless. It's perfectly useful
> if you have huge pages.
It was me, but I was evidently mistaken.
Still, I wonder if there are actually any real users of the
hugetlb facility in our distro or even in the rest of Fedora.
|___| Bernardo Innocenti - http://www.codewiz.org/
\___\ One Laptop Per Child - http://www.laptop.org/
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