Bheve: Slow linux syscalls on AMD

Willem Jan Withagen wjw at digiware.nl
Sun Jun 8 20:15:29 UTC 2014


On 8-6-2014 18:23, Peter Grehan wrote:
>> Still seeing that a 2 CPU VM is using about 100% of 1 cpu when idleing,
>> but that is another minor challenge.
> 
>  I know what that one is: should have a fix shortly.

I've done some of the syscall tests, like before.
getuid(2) is now down to 350 nsec...
Running the same on the bare metal with FreeBSD gives 140 nsec....

So I can't be complaining....

Comparing umask(2) is more the same:
	151 nsec
versus VM linux:
	 364 nsec

--WjW




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