Hi, Em 26-10-2015 14:23, Nigel Horne escreveu:
How many CPUs have you configured for OpenBSD? I find OpenBSD's SMP performance under both VirtualBox and QEMU is very poor; it's much faster to allocate only one CPU to the guest.
I used only two CPUs, but I noticed that the same configuration for the VM with a OEL OS (latest version) was faster (how much I can't tell, but data was being updated on the terminal much faster on Linux).
I did some research and it seems the OpenBSD community is not that worried about improving the OS on VMs.
I'll try to allocate a single CPU to the VM, but first I think I'll try and implement some kind of statistics of tests completed to CPAN::Reporter::Smoker. That will help to do comparisons between other OS and before/after changes.
On thing that I noticed is that OpenBSD I/O has very poor performance, even after configuring some options for better performance.
I also tried to change the build_dir to a mfs partition (http://www.onlamp.com/pub/a/bsd/2000/09/07/Big_Scary_Daemons.html) but I didn't noticed much improvement there: the CPUs usage were still low (something like ~70% in one and ~20% in the other).
I'm thinking about in creating a gateway to deliver the reports and leave the smokers spending most of their CPU time on testing only. Is there anything like that already implemented?
Regards, Alceu
