On Thu, Jan 11, 2018 at 05:38:18PM +0000, Kent Watsen wrote: > On 1/10/18 1:53 PM, Mike Larkin wrote: > > On Wed, Jan 10, 2018 at 03:51:19PM +0000, Mark Carroll wrote: > > > Since my hosting provider https://www.bytemark.co.uk/cloud-hosting/ > > > patched for Meltdown last weekend I'm seeing significant performance > > > issues with an OpenBSD virtual instance there. It seems okay after a > > > fresh reboot but then progressively returns to being very slow: for > > > example "sleep 1" may take four seconds, then five, six, seven, then > > > rather more. Curiously it does tend to be an integral multiplier. > > > > > > I wondered, is anybody else seeing significant performance problems with > > > OpenBSD (or other BSDs) virtual instances since Meltdown patching? Is > > > there anything to tweak at my end or am I reliant on the provider? > > > > > > -- Mark > > > > > There are a ton of threads talking about this issue, and it's not meltdown > > specific. Please search the archives. > > > > -ml > > > > Really? I just searched the last two years of list email for subject lines > having substrings "virt", "kvm", "perf", and "slow", and didn't see anything > on this specific issue. Can you provide a link, or the name of the thread, > or some keywords? > > Also, Mark, could you say some more about the issue. For instance, how long > after a reboot does it take until you start to notice the issue, and how > quickly does it get worse? > > Thanks, > Kent >
IIRC several of the threads referred to proxmox.
