Fwd: GC overhead limit exceeded

[Benjamin Sieffert]

Hi everyone,

we have been observing similar symptoms from 7u40 onwards (using
nashorn-backport with j7 -- j8 has the same problems as 7u40 and 7u45...
7u25 is the last version that works fine) and suspect the cause to be the
JSR-292 changes that took place there. Iirc I already asked over on their
mailing list. Here's the link:
http://mail.openjdk.java.net/pipermail/mlvm-dev/2013-December/005586.html
The fault might as well lie with nashorn, though. It's certainly worth
investigating.

Regards


2014/1/4 Tal Liron <tal.liron at threecrickets.com>

> Thanks! I didn't know of these. I'm not sure how to read the log, but this
> doesn't look so good. I get a lot of "allocation failures" that look like
> this:
>
> Java HotSpot(TM) 64-Bit Server VM (25.0-b63) for linux-amd64 JRE
> (1.8.0-ea-b121), built on Dec 19 2013 17:29:18 by "java_re" with gcc 4.3.0
> 20080428 (Red Hat 4.3.0-8)
> Memory: 4k page, physical 2039276k(849688k free), swap 262140k(256280k
> free)
> CommandLine flags: -XX:InitialHeapSize=32628416 -XX:MaxHeapSize=522054656
> -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps
> -XX:+PrintTenuringDistribution -XX:+UseCompressedClassPointers
> -XX:+UseCompressedOops -XX:+UseParallelGC
> 0.108: [GC (Allocation Failure)
> Desired survivor size 524288 bytes, new threshold 7 (max 15)
> [PSYoungGen: 512K->496K(1024K)] 512K->496K(32256K), 0.0013194 secs]
> [Times: user=0.01 sys=0.00, real=0.00 secs]
>
>
> On 01/04/2014 10:02 PM, Ben Evans wrote:
>
>> -Xloggc:<pathtofile> -XX:+PrintGCDetails -XX:+PrintTenuringDistribution
>>
>
>


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Benjamin Sieffert
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