Huge pages

[Tiago Stürmer Daitx]

> unfortunately I'm unable to reproduce the problem you reported (i.e.
> the (errno = 16) warning).
> 
> java -XX:+UseConcMarkSweepGC -XX:+UseLargePages -XX:+UseSHM -Xmx756m
> -showversion -jar SPECjvm2008.jar -wt 120 -it 300 --parseJvmArgs -i 1
> --peak

I figured out why I was unable to reproduce your successful run with
compressedoops on. I was calling specjvm2008 with a properties file and
there was an uncommented line at the middle of it that overwriting the
heap setting with -Xmx2048.

The threshold for the heap is 1984, at 1985 shmat starts failing with
EBUSY. Of course, that's when CompressedOops is enabled.

-- 
Tiago Stürmer Daitx
tdaitx at linux.vnet.ibm.com
IBM - Linux Technology Center