Hi everybody,
I am starting with Squeak, and see some strange CPU usage pattern while
using Squeak VM 3.9-8 compiled on Debian Linux unstable. When using the
3.9rc1-7061 image, sometimes I have around 25% processor usage when
doing nothing. Some simple thinks like Exploring an object causes 8 to
10 seconds of 100% CPU usage.
For instance, having on display a System Browser, a Workspace, a
Hierarchy Browser and the Objects palette, with no visible running
tasks/processes:
Here is a view of top:
top - 10:00:20 up 10:05, 6 users, load average: 0.65, 0.62, 0.66
Tasks: 65 total, 2 running, 63 sleeping, 0 stopped, 0 zombie
Cpu(s): 24.8%us, 0.0%sy, 0.0%ni, 75.2%id, 0.0%wa, 0.0%hi, 0.0%si,
0.0%st
Mem: 190116k total, 148316k used, 41800k free, 2760k buffers
Swap: 503992k total, 12268k used, 491724k free, 67656k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4364 pdinoto 15 0 437m 22m 1812 R 23.8 12.0 1:20.95 squeak
1 root 15 0 1944 88 64 S 0.0 0.0 0:01.79 init
2 root 34 19 0 0 0 S 0.0 0.0 0:00.00
ksoftirqd/0
3 root 10 -5 0 0 0 S 0.0 0.0 0:00.17 events/0
4 root 17 -5 0 0 0 S 0.0 0.0 0:00.02 khelper
and 3 lines of output of vmstat:
procs -----------memory---------- -----io---- -system-- ----cpu----
r b swpd free buff cache bi bo in cs us sy id wa
1 0 12268 41996 2760 67656 0 0 363 339 24 1 75 0
0 0 12268 41996 2760 67656 0 0 264 296 23 0 77 0
1 0 12268 41996 2768 67656 0 12 333 330 24 0 76 0
System is a P3 700mhz laptop, with 192mb RAM. While it is not much, I
see no swapping when this occurs.
I am still a little bit confused who would be the best to report this,
so if there is a better place please point me in the right direction.
I am already starting to get addicted to Smalltalk... scary! :)
Thanks,
///Pablo
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