<br><font size=2 face="sans-serif">Hi,</font>
<br>
<br><font size=2 face="sans-serif">Some time ago I've made series of tests
on Squid-2.5STABLE5. I wanted confirm and verify results obtained by Duane
Wessels in his book about Squid. Duane measured how Squid performace can
depends on filesystem performance. I took all tests on the same machine
in identical environment but I obtained strange results for COSS
(coss.png). </font>
<br>
<br>
<br><font size=2 face="sans-serif">Could someone interpret this results?
Is anyone who can give me explaination about this periodical peak in response
time? Adjustment algorithm in the workload (attached file pm4-pf2.pg) take
care about misses and hits and take action when value exceeds or fell below,
respectively, 3.0 and 0.25 sec. At second image (diskd.png) which contains
trace for diskd there is no similar peak.</font>
<br>
<br>
<br><font size=2 face="sans-serif">Thanks in advance,</font>
<br><font size=2 face="sans-serif">Peter</font>