Re: Large number of netlivelocks

2014-11-01 Thread Stuart Henderson
On 2014/11/01 15:31, Federico Giannici wrote: > > > >This is expected if you increase HZ without changing how livelock > >detection works. It sets a timer every clock tick, when that timer has > >triggered it checks how many ticks elapsed, if >1 livelock is detected. > >This triggers livelock avoid

Re: Large number of netlivelocks

2014-11-01 Thread Federico Giannici
On 10/31/14 09:39, Stuart Henderson wrote: On 2014-10-30, Federico Giannici wrote: Hi. We noticed that in our firewall (an OpenBSD 5.5-stable amd64, demsg follows) there are a large number of network livelocks (kern.netlivelocks). We graphed them and noticed that they arrive even to 2000 per mi

Re: Large number of netlivelocks

2014-10-31 Thread Stuart Henderson
On 2014-10-30, Federico Giannici wrote: > Hi. > We noticed that in our firewall (an OpenBSD 5.5-stable amd64, demsg > follows) there are a large number of network livelocks > (kern.netlivelocks). We graphed them and noticed that they arrive even > to 2000 per minute! They are related to the amo