ULE and very bad responsiveness

Jonathan Fosburgh syjef at mdanderson.org
Fri Nov 14 05:18:57 PST 2003

Hash: SHA1

On Thursday 13 November 2003 06:01 pm, Harald Schmalzbauer wrote:

> I also could play quake(2) and have something compiling in the background
> but I see every new object file in form of a picture freeze. Also every
> other disk access seems to block the whole machine for a moment.
> I'll try again if somebody has an idea what's wrong. Then I can try running
> seti wtih nice 20 but that's not really a solution. It's working perfectly
> with nice 15 and the old scheduler.

I see something similar, as a file is generated during a compile a get a 
momentary hang in the mouse, but it is not every compile.  I think I see it 
mostly when running some invocation of make -j, but I've not been able to 
lock down a particular set of circumstances where I do see it.  My 
sched_ule.c is at 1.80.  I have a UP system.  This behaviour, intermittant 
though it is, persists across a normal UP kernel, and also one with SMP+APIC 
(I was *supposed* to have two CPUs, but that is another issue ...) enabled. I 
have a PS/2 mouse and use moused.  I'm running KDE3.1.4.
- -- 
Jonathan Fosburgh
AIX and Storage Administrator
UT MD Anderson Cancer Center
Houston, TX 
Version: GnuPG v1.2.3 (FreeBSD)


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