Re: 2.6.21-rc3-mm1 RSDL results

Mark Lord
2007-03-13T18:21:43Z

Con Kolivas wrote:
>
> Can you try the new version of RSDL. Assuming it doesn't oops on you it has
> some accounting bugfixes which may have been biting you.

Retesting today with 2.6.21-rc3-git7 + 2.6.21-rc3-sched-rsdl-0.30.patch.

Still not pleasant to use the GUI with a kernel build (-j1 or -j2) happening
unless the build is manually "nice'd".

Also, accounting looks weird in top(1).
With a 100% busy machine, top will show something like this :

> top - 14:20:11 up 10:22, 1 user, load average: 2.65, 2.80, 2.18
> Tasks: 134 total, 4 running, 128 sleeping, 0 stopped, 2 zombie
> Cpu(s): 68.7% us, 6.7% sy, 24.7% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
> Mem: 2076964k total, 2002560k used, 74404k free, 148924k buffers
> Swap: 2409740k total, 244k used, 2409496k free, 1448876k cached
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 1824 root 36 10 11748 7244 1936 R 4.0 0.3 0:00.12 cc1
> 1845 root 31 0 8080 5272 1412 R 1.7 0.3 0:00.05 cc1
> 4139 root 20 0 176m 35m 6860 S 1.3 1.7 18:59.35 Xorg
> 29381 root 20 0 33712 16m 12m R 1.0 0.8 0:27.24 konsole
> 3 root 20 0 0 0 0 S 0.3 0.0 0:00.49 events/0
> 1529 root 20 0 2556 1460 752 S 0.3 0.1 0:00.05 make
> 14623 root 20 0 2200 1144 860 R 0.3 0.1 0:00.89 top
> 1 root 20 0 1568 532 464 S 0.0 0.0 0:00.22 init
> 2 root 39 19 0 0 0 S 0.0 0.0 0:00.01 ksoftirqd/0
> 4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper
> 5 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthread

Mmm.. I wonder where all of that 100% CPU went to.. the busiest tasks
are only showing up as 4.0% and 1.7% (when in fact they are using near 100%).

Cheers