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Published on 2010-06-18T09:11:26Z
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I have observed that JVM cannot user 8 CPU advantage. Because when a thread runs more than 1 secs, other threds are waiting for it. there is no lock beetween these threds is there any jvm option for this ?
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Is there a way to quickly switch over all the Java related alternatives using update-alternatives?
For instance, if want to switch Java over to 7, I run sudo update-alternatives --config java and select the Java 7 OpenJdk. But if I run update-alternatives --get-selections | grep java I get the following…
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??Oracle JRockit JVM?????????????????????·?????????????????????????JVM??????? ???????????????????????????????????????????????????????????????????????? ??????? ?????????Oracle JRockit???????·??????????????????????????????????????????????????????????? Oracle JRockit JDK???????????????????…
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can this be solved simply by specifying the complete url of the servlet in the RequestDispatcher?
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JRockit JVM???????????????????????????????????????????????????????????????????????????????????????????? ?JVM???????????????? ?JVM??????????? ???????????????????? ????????? ?JVM??????????????JVM??????????????…
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Apache ds fails to list the users
INFO | jvm 1 | 2012/03/28 15:54:04 | java.lang.Error: ERR_546 CRITICAL: page header magic for block 59 not OK 0
INFO | jvm 1 | 2012/03/28 15:54:04 | at jdbm.recman.PageHeader.(PageHeader.java:95)
INFO | jvm 1 | 2012/03/28 15:54:04 | at…
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Hi,
My new server has 2 x X5570 CPUs.
Now here is the output of grep -i hz /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU X5570 @ 2.93GHz
cpu MHz : 1600.231
model name : Intel(R) Xeon(R) CPU X5570 @ 2.93GHz
cpu MHz : 1600.231
model name : Intel(R) Xeon(R) CPU …
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Hello!
I'm running FreeBSD 7.2 under VMware ESXi 3.5. Host has 2 physical CPUs and the BSD box is currently the only running VM. Only one virtual CPU is assigned to the VM.
When measuring CPU time of a specific program, I get very different results from time to time. Processor usage is reported…
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According to http://net-snmp.sourceforge.net/docs/mibs/ucdavis.html#scalar_notcurrent ssCpuUser, ssCpuSystem, ssCpuIdle, etc are deprecated in favor of the raw variants (ssCpuRawUser, etc).
The former values (which don't cover things like nice, wait, kernel, interrupt, etc) returned a percentage…
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I've noticed that there are sometimes (large) differences between the reported total CPU usage and a summation of the per-process CPU utilization given by apps like top and wmtop.
As an example: I recently ran a git filter-branch --index-filter on a fairly large repo, with the index-filter command…
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I have a Ubuntu 12.04 server which sometimes dies completely - no SSH, no ping, nothing until it is physically rebooted.
After the reboot, I see in syslog that the oom-killer killed, well, pretty much everything.
There's a lot of detailed memory usage information in them. How do I read these logs…
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