Matus UHLAR - fantomas wrote:
On 29.05 12:55, Askar wrote:
Hi Henrik
I am not Henrik, but...
Just migrated on of our production cache server to "aufs" but i'm
kinda confuse watchen too many squid process running, I read about aufs
, that it will start number of process "thread" for disk I/O"
http://www.oreilly.com/catalog/squid/chapter/ch08.pdf
Atm there are ....
$ps -ef | grep squid | wc -l
31
squid processes running is this normal ?
yes. aufs causes squid use threads, which looks like more processes on linux
(and possibly other OSes). Nothing bad or ineffective.
But still I have some reservations,... here i'm quating from one of my
mate which I just consulted.
"diskd is sysV IPC based and scales based on IPC message passing
efficiency, aufs is threads based and scales based on pthread locking
efficiency & system scheduling overhad the overhead of both is ~ the same.
and they have been profiled to within an inch of each other in linux,
with no /clear/ winner"
regards
Askar Ali
