some bhyve guests showing high load on host
tech-lists
tech-lists at zyxst.net
Sat Jul 30 12:35:12 UTC 2016
On 25/07/2016 06:59, tech-lists wrote:
> On 25/07/2016 02:42, Shane Ambler wrote:
>> > How are you starting your bhyve's? Are you using the -H option?
>> >
>> > From man bhyve -
>> > -H Yield the virtual CPU thread when a HLT instruction is
>> > detected. If this option is not specified, virtual CPUs will
>> > use 100% of a host CPU
> You know, I didn't think of that. There's 7 or so VMs. I can't check
> them all right now as some need notification, but I will check them all.
> The ones I have checked so far *do* have -H specified; I expect the two
> remaining showing 400% CPU haven't...
just following up on this - they were all using -H. A simple vm reboot
cured it for each of them. Most odd. The one at 13.28% is expected -
it's huge and busy. The rest are mostly idle.
last pid: 62405; load averages: 0.30, 0.15, 0.07 up 605+00:35:21
13:32:28
80 processes: 1 running, 79 sleeping
CPU: 0.0% user, 0.0% nice, 0.5% system, 0.0% interrupt, 99.5% idle
Mem: 396M Active, 96G Inact, 85G Wired, 1727M Buf, 6102M Free
ARC: 80G Total, 5601M MFU, 74G MRU, 784K Anon, 387M Header, 80M Other
Swap: 4096M Total, 30M Used, 4066M Free
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU
COMMAND
21771 root 10 20 0 32796M 31601M vmidle 11 593:17 13.28% bhyve
21839 root 4 20 0 8219M 750M vmidle 18 73:29 0.29% bhyve
55293 root 6 20 0 8219M 1488M vmidle 27 84:10 0.00% bhyve
30053 root 6 20 0 4123M 2783M vmidle 28 71:57 0.00% bhyve
21933 root 6 20 0 16411M 985M vmidle 10 55:56 0.00% bhyve
21965 root 4 20 0 4123M 1095M vmidle 8 41:59 0.00% bhyve
21910 root 6 20 0 4123M 747M vmidle 27 40:47 0.00% bhyve
21985 root 6 21 0 16411M 843M vmidle 7 39:49 0.00% bhyve
thanks for your help,
--
J.
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