CMS collection keep working during holiday
Ken--@newsgroupstats.hk
dragonken at gmail.com
Thu Oct 9 04:49:56 UTC 2008
Thanks to your quick response.
This command option is very useful. I was trying to find a way to manually
trigger full gc with DisableExplicitGC turned on :>
Attached the live histo.
http://www.nabble.com/file/p19892359/histo3.txt histo3.txt
Thanks and Best Regards,
Ken
Y Srinivas Ramakrishna wrote:
>
>
>
> Hi Ken --
>
>> Actually jmap -histo is my first step for trouble shooting at the very
>> beginning. Why there are so many wierd instance is because I have this
>> flag:
>>
>> -XX:+DisableExplicitGC
>>
>> With this flag turned on, all calls to System.gc() is ignored even you
>> press
>> the 'Perform-GC' button in Jconsole. Removing this flag will have a much
>> clear histo. I will cap a histo (without this flag turned on) and post
>> here
>> tomorrow.
>
> If you use jmap -histo:live <pid> from the command-line you will
> get a full gc before the histogram is computed. This full gc will
> be done despite having +DisableExplicitGC.
>
> -- ramki
>
>
--
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