Thank you all very much!
The suggested combinations of network configuration & iSCSI settings
seem to have solved the problem, even though initially the speed
fluctuated very heavily (no idea why ;)). I've run 3 consecutive full
Bonnie++ tests now and tried different combinations, and these are the
best results I could get so far:
Version 1.93c ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec
%CP /sec %CP
abcdefghijklmn 16G 423 99 105115 22 35580 18 756 99 113453
31 367.5 7
Latency 20001us 500ms 520ms 20001us 110ms
90001us
Version 1.93c ------Sequential Create------ --------Random
Create--------
abcdefghijklmn -Create-- --Read--- -Delete-- -Create-- --Read--- -
Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec
%CP /sec %CP
16 4106 29 +++++ +++ 3244 10 888 95 +++++ +++
2829 12
The system load now sticks at 1.00 (1 CPU/core used at 100%) as well.
Hopefully this discussion/thread will help others in the future!
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