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04-11-2005 06:58 PM
04-11-2005 06:58 PM
RHEL3 SMP java CPU-hog
- RHEL3 AS
- Kernel 2.4.21-20EL / 2.4.21-20ELsmp
- Java version 1.4.2_06
When booting system with uniprocessor kernel, everything is ok. But when booting to SMP, java gets 100% from one CPU. Even 'java -version' gets that 100%. In fact it doesn't come back to prompt but stays stucked. Hyperthreading is ON.
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04-11-2005 07:11 PM
04-11-2005 07:11 PM
Re: RHEL3 SMP java CPU-hog
Unfortunately, the JRE 1.4 series doesn't support green threads.. so my only suggestion is to get the newest JRE possible.
If that doesn't work, try getting a version or two older..
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04-11-2005 07:30 PM
04-11-2005 07:30 PM
Re: RHEL3 SMP java CPU-hog
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04-11-2005 09:18 PM
04-11-2005 09:18 PM
Re: RHEL3 SMP java CPU-hog
Is hyperthreading 'ON' on the other system?
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04-11-2005 09:20 PM
04-11-2005 09:20 PM
Re: RHEL3 SMP java CPU-hog
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04-11-2005 09:32 PM
04-11-2005 09:32 PM
Re: RHEL3 SMP java CPU-hog
I've only seen behaviour like this when there was a non-thread-happy while loop occupying the processor..
Sorry..
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04-11-2005 10:16 PM
04-11-2005 10:16 PM