28 Mar
2014
28 Mar
'14
3:37 p.m.
On Fri, Mar 28, 2014 at 09:30:17AM -0500, Matt Garman wrote:
How can the loadavg shoot up (from ~1 to ~20) without a corresponding uptick in number of tasks?
loadavg is based on number of processes vying for cpu time on the runq; the number of over-all processes on the system is not really relevant unless they are all competing for cpu.
What's the i/o wait on the box when you see load spikes? If the box is i/o bound (indicated by high i/o) the load average will spike due to processes blocked on i/o cycles.
John
--
Worrying works. About 90% of the things I worry about never happen.
-- Woody Paige (1946-), sports columnist, on ESPN's "Around the Horn"