Hello again,
I just had some time to check some more things...
If that doesn't help:
* what sort of workload are you imposing in your tests?
I just used thunderbird to access my IMAP folders and used a single
browser to access squirrel webmail (also using same IMAP).
* do you know where the CPU time is going in the domain?
No idea :) An "xm list" on the dom0 didn't showed much seconds for the
"slow" machine as I expected when I saw this load avg.
* does the output of top and vmstat look weird?
Yes :) See below...
* anything strange in the dmesg output (try comparing to the dmesg from a
native boot)?
No, that seems to be fine.
vmstat does not work:
root@pbone:~# vmstat
Unknown HZ value! (39) Assume 100.
procs memory swap io system
cpu
r b w swpd free buff cache si so bi bo in cs us
sy id
Segmentation fault
...and top looks like this after a minute running all services:
19:25:10 up 1 day, 6:10, 1 user, load average: 14.41, 5.82, 2.75
137 processes: 135 sleeping, 2 running, 0 zombie, 0 stopped
CPU states: 0.8% user, 99.2% system, 0.0% nice, 0.0% idle
Mem: 257488K total, 255368K used, 2120K free, 128K buffers
Swap: 0K total, 0K used, 0K free, 2440K cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
2567 list 18 0 3716 1004 72 D 0.3 0.3 0:00 python
2582 root 18 0 1824 400 144 R 0.3 0.1 0:00 top
2567 list 18 0 3664 1284 392 D 0.4 0.4 0:00 python
8 root 15 0 0 0 0 DW 0.2 0.0 0:00 kswapd0
2576 root 18 0 87092 5520 324 D 0.2 2.1 0:00 apache
2577 root 18 0 87092 5520 324 D 0.2 2.1 0:00 apache
2578 root 18 0 87092 5520 324 D 0.2 2.1 0:00 apache
2580 root 18 0 87092 5520 324 D 0.2 2.1 0:00 apache
2583 root 17 0 1760 656 524 D 0.2 0.2 0:00 cron
When I had a closer look to the mem line:
Mem: 257488K total, 255368K used, 2120K free, 128K buffers
...it looked strange to me. I checked and found my config file for this
domain looking like this:
...
memory = 128
extra = "mem=268435456"
...
This was left over from my tries to get the "xm balloon" working. I
removed the extra line from the config file - and voila, it works... Is
this config above wrong at all or is the strange behaviour I found
related to the bugs with balloon feature..?
Regards,
Patrick
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