On Thu, Jul 14, 2016 at 01:18:19PM +0100, Stefan Hajnoczi wrote: > The following throttling behavior was observed with bps=512000 > bps_max=51200 throttling.bps-total-max-length=2: > > READ: io=512KB, aggrb=50KB/s, minb=50KB/s, maxb=50KB/s, mint=10061msec, > maxt=10061msec > > If bps-total-max-length=1 then the result is different: > > READ: io=5056KB, aggrb=505KB/s, minb=505KB/s, maxb=505KB/s, mint=10006msec, > maxt=10006msec > > The burst limits guest bps instead of adding on top of it when > burst_length > 1.
Thanks Stefan, I think we should forbid that kind of setup altogether. I wrote a few more details in the bug report: > https://bugzilla.redhat.com/show_bug.cgi?id=1355665 I can write the patch. Berto