Re: massive load average spikes

2010-08-11 Thread markham breitbach
> load average is a time averaged thing and in the case of a > 'thundering herd' problem you will see the LA spike up and > come down again over time. > > Do you see any problem as a result of this? Or is it just curiosity? > > you might want to use KTR or ktrace with scheduling events if you > re

Re: massive load average spikes

2010-08-11 Thread Julian Elischer
On 8/11/10 11:56 AM, markham breitbach wrote: On 11/08/10 11:59 AM, Chuck Swiger wrote: Hi-- [...] Sorry for the limited data, It's hard to know where to draw the line between useful data and information overload, but I'm more than happy to supply whatever other info you might find usef

Re: massive load average spikes

2010-08-11 Thread markham breitbach
On 11/08/10 11:59 AM, Chuck Swiger wrote: > Hi-- > > On Aug 11, 2010, at 10:04 AM, markham breitbach wrote: >> I am running into an issue where I am seeing load average on a server >> suddenly jump from >> nominal values around 0.5 to anywhere from 10 up over 70 in under 1 second. >> This does

Re: massive load average spikes

2010-08-11 Thread Chuck Swiger
Hi-- On Aug 11, 2010, at 10:04 AM, markham breitbach wrote: > I am running into an issue where I am seeing load average on a server > suddenly jump from > nominal values around 0.5 to anywhere from 10 up over 70 in under 1 second. > This does not > seem to be related to CPU overload, and LA imm

massive load average spikes

2010-08-11 Thread markham breitbach
Good Day, I am running into an issue where I am seeing load average on a server suddenly jump from nominal values around 0.5 to anywhere from 10 up over 70 in under 1 second. This does not seem to be related to CPU overload, and LA immediately begins to fall back again to nominal. This does