20 Apr
2012
20 Apr
'12
12:24 p.m.
On Apr 20, 2012 2:42 AM, "Lists" lists@benjamindsmith.com wrote:
Problem as follows:
Plug in an external USB drive.
Mount it anywhere. Doesn't matter how.
Copy a few GB of data to the drive from a non-USB disk.
Watch the load average "climb" to 5.x, sometimes 10.x or more. Why?
This on an otherwise unloaded system. Doesn't matter how many cores, how much RAM, 32/64 bit, etc.
Why should copying some files to a USB drive cause load averages to climb so high? (and network monitors to freak out?)
It's just a number. Is the system any slower?
Linux adds I/O wait time to the load average calculation.
-- Giovanni