Another cpu and memory consuming hard to find

[Frederic Bregier]

Hi Trustin,

I think we should close this thread... ;-(

I try several things:
- I implement a client that makes 100 connections (threads) in parallel and
act
 (outside Tomcat, so directly in its own jvm) as a test of benchmark.
- Still JDK5 perfect : almost 500 Mbit/s
- Still JDK6 AIX IBM defect : from 80 Mbit to 5 Mbit after a thousands of
requests
- I download the last version for Linux of both Sun's JDK and IBM's JDK in
version 6.
  - JDK5 IBM : ok (smaller server so 80 Mbits constant)
  - JDK6 Sun : ok (same)
  - JDK6 IBM : ko (from 16 Mbit to 5 Mbit and decreasing)

I have no more memory growing or cpu consuming.

- I try to make a simple example, but it does not reproduce the behaviour...
;-(

So I have no more clue.
I think the JDK6 from IBM (both for AIX and Linux) seems buggy...

I will continue to use JDK5 (on AIX I have no choice to use another JDK).
And I will wait for new patches from IBM on its JDK6.
I don't feel like I can make a call to the support of IBM since it is not
easy to see where is the problem (and it seems really in the JDK).

Except if you have any other ideas, I will stop this thread for now...

Frederic

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Hardware/Software Architect
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