08.08.2017 18:07, Eric Blake wrote:
On 08/08/2017 04:04 AM, Vladimir Sementsov-Ogievskiy wrote:
Throttling "guaranties" that there will not be more than one
what prevent less than one, i.e. zero, like in my reproduction?
Yes, I understand. Can we somehow make sure that at least one iteration
is made? I'd really like to keep the functional test for block job
throttling. I suppose a simple 'sleep 0.1' would do the trick, though
it's not very clean.
I've started with 'sleep 0.5', now there are >100 successful
iterations... The other way is to check in test that there was 0 or 1
requests, but for this it looks better to rewrite it in python.
is sleep for ms portable?
Sadly, sub-second sleep is a GNU coreutils feature; I suspect the BSD
machines may fail to parse it. (Of course, we could do some sort of
'sleep $SMALL', where $SMALL is 0.5 if sleep supports it, and 1 otherwise).
sleep for 1 second may lead to more then one request done before qemu quite.