On Thu, 3 Nov 2011, Ivan Klymenko wrote:
Thank you for taking the time to answer me.
? Thu, 3 Nov 2011 10:21:48 -1000 (HST)
Jeff Roberson <jrober...@jroberson.net> ?????:
On Sat, 22 Oct 2011, Ivan Klymenko wrote:
Hello people!
I have:
CPU: Intel(R) Core(TM)2 Duo CPU T7250 @ 2.00GHz (1994.48-MHz
K8-class CPU) FreeBSD 10.0-CURRENT r226607 amd64
For example during the building of the port lang/gcc46 in four
streams (-j 4) with a heavy load on the processor - use the system
was nearly impossible - responsiveness was terrible - the mouse
cursor sometimes froze on the spot a few seconds...
Am I right in understanding that you have only two cores?
Yes.
What else is running that achieves poor interactivity?
This is mainly a compilation with make option -j >= ncpu*2
And as an example - launching a large number of programs
http://www.youtube.com/watch?v=1CLCp-dqWu0
This patch allows me to make do with ULE nearly as well as with FBFS
Without the patch, somewhere in the middle of the time with ULE has
been difficult to control the mouse cursor.
What is the cpu utilization of your x server at this time?
~2.00% - 20.00% WCPU time... But sometimes there are up to 79%...
Upon unloading the CPU returns to normal...
When the x server is down at 20% is it laggy? Can you tell me the
priorities of the x server and the compile tasks? You can use the 'pri'
keyword with ps and write a short script to log all priorities once per
second during your test. That would be most helpful. Let me know if you
need assistance with that.
Jeff
I managed to achieve a significant increase in the degree of
interactivity ULE scheduler due to the following changes:
This patch probably breaks nice, adaptive idling, and slows the
interactivity computation. That being said I'm not sure why it helps
you.
It seems that there are increasing reports of bad interactivity
creeping in to ULE over the last year. If people can help provide me
with data I can look into this more.
I'll be glad to provide data
Thanks for your report.
Jeff
How to repeat your tests on my system?
http://jeffr-tech.livejournal.com/24280.html
Sorry for my english.
Thanks!
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