I have observed this on three different machines (all x86) compiled to
2.6.26-rc2/rc1.
First, I have only firefox + thunderbird applications. Firefox have
at least 40 tabbed windows inside. This is normal as it always
worked with all the other kernel release.
But not this 2.6.26-rc2 - notice how firefox reaches 103% of CPU below:
Tasks: 161 total, 2 running, 157 sleeping, 0 stopped, 2 zombie
Cpu(s): 10.5%us, 4.7%sy, 0.0%ni, 84.1%id, 0.6%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2074560k total, 2021156k used, 53404k free, 41996k buffers
Swap: 4192924k total, 0k used, 4192924k free, 557200k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4218 root 20 0 1403m 1.1g 28m R 103 54.9 23:02.69 firefox-bin
3956 root 20 0 174m 145m 6808 S 4 7.2 3:28.69 Xorg
8412 root 20 0 2196 956 712 R 4 0.0 0:00.02 top
4262 root 20 0 96156 30m 24m S 2 1.5 0:02.52 gnome-terminal
1 root 20 0 2040 648 560 S 0 0.0 0:01.11 init
And another snapshot:
4218 root 20 0 1403m 1.1g 28m R 101 54.9 22:10.97 firefox-bin
3956 root 20 0 174m 145m 6808 S 1 7.2 3:27.88 Xorg
7219 root 20 0 2200 1044 796 R 1 0.1 0:00.04 top
When this happened, every mouse/key input all generate no
response.....basically slowed down a lot. And moving the GUI objects
across the screen will produced a lot of lagging graphics....
After I kill firefox, every thing goes back to normal again.
Something is wrong at the per-process memory allocation/deallocation?
And it has been working only the night before (I think that is rc1).
--
Regards,
Peter Teoh
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