Re: high load, no bottleneck

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

> I have no idea wether [several journal flushes per second] is high or low.
It should be killing you.
So the main question is who is issuing these small sync writes.
As already mentioned, per filesync write you get a WAPBL journal flush which 
ends up in two disc flushes (one before and one after).

> This is a two-disk RAID 1
Wait, this is a Level 1 RAID? The you don't have RMW.
You may compare write througput to read throughput.