Content deleted Content added
Clarify point on Linux vs world on load average calculations: Linux includes certain sleeping states. |
|||
Line 26:
A clearer, more detailed, and authoritative explanation of waiting, states, and calculation (including analysis of the operating system code) can be found in the reference listed under External Links (http://www.teamquest.com/resources/gunther/display/5/index.htm). Anyone contemplating changes to this section (I lack the necessary detailed knowledge) should take a close look at that reference.
[[User:71.126.183.125|71.126.183.125]] 16:18, 6 February 2007 (UTC)
Confusion here seems to stem from the fact that Linux calculates load average differently from most UNIX systems: on most systems, only running or runnable threads count towards the load, but Linux also includes threads in certain types of sleeps (i.e., disk I/O). This difference becomes most significant during storage system stalls, such as NFS server failure, where the load average on Linux will spike because many threads will be blocked in NFS I/O indefinitely. I've updated the article a bit to reflect this distinction, but no of no other UNIX system that takes this approach.
== Instantaneous percentage of CPU utilization on Windows?!? ==
| |||