I'm just testing VB and the precompiled version is working nicely. However it's a bit slow.
After investigating for 30 seconds I found this with vmstat 1:
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procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 840 68052 0 1050352 0 0 0 0 110 3051 2 3 95 0
0 0 840 68124 0 1050352 0 0 0 102 642 6694 20 8 72 0
1 0 840 67368 0 1050352 0 0 0 21 471 5767 5 6 89 0
0 0 840 67504 0 1050260 0 0 0 22 402 5228 18 6 77 0
0 0 840 67588 0 1050260 0 0 0 57 697 7453 7 6 87 0
1 0 840 67852 0 1050264 0 0 0 8 537 6732 20 7 73 0
---> here I start /usr/bin/VirtualBox
1 0 840 64996 0 1050264 0 0 0 222 921 37339 27 12 61 0
0 0 840 63760 0 1050280 0 0 0 18 476 189202 48 17 35 0
2 0 840 63760 0 1050280 0 0 0 8 525 483841 7 17 76 0
1 0 840 64008 0 1050312 0 0 0 8 355 384590 20 17 64 0
0 0 840 64008 0 1050312 0 0 0 0 349 486491 6 16 78 0
0 0 840 63884 0 1050324 0 0 0 201 417 346671 20 14 67 0
0 0 840 63952 0 1050324 0 0 0 45 540 493216 8 17 75 0
1 0 840 63992 0 1050344 0 0 0 22 236 367475 23 17 61 0
2 0 840 63992 0 1050344 0 0 4 24 263 464226 17 16 67 1
1 0 840 64240 0 1050360 0 0 0 22 268 412536 17 14 69 1
0 0 840 63800 0 1050360 0 0 8 182 359 457217 8 16 75 2
1 0 840 63232 0 1050392 0 0 0 30 366 340499 19 17 63 0
0 0 840 67172 0 1050392 0 0 0 0 1205 190255 20 15 66 0
13 seconds after, I exit from /usr/bin/VirtualBox.
4 0 840 67404 0 1050396 0 0 0 7 654 6804 20 9 72 0
0 0 840 66212 0 1050396 0 0 0 0 329 4471 5 5 90 0
3 0 840 66040 0 1050424 0 0 0 142 365 11356 25 13 63 0
5 0 840 66880 0 1050424 0 0 0 8 255 11534 24 11 65 0
3 0 840 67032 0 1050440 0 0 0 14 264 6883 29 9 63 0
When running guests, the problem persists, but with even more cs/sec, something like 600000/sec or more.
By searching the net I found that VB only likes certain kernels. This one is:
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Linux puma 2.6.21-rc7-git7 #1 SMP Wed Apr 25 04:38:05 WEST 2007 i686 GNU/Linux.
I'd really like to use some recent kernel because of some drivers that require a recent tree (DVB's IVTV kernel patch, which is a TV card).
So, is it some option in the kernel that I can try to enable/disable or I must change the kernel's version? If the later, is there a recommended version for the host?
Thanks,
Nuno