| From: | Florian Weimer <fweimer(at)bfk(dot)de> |
|---|---|
| To: | Scott Marlowe <smarlowe(at)g2switchworks(dot)com> |
| Cc: | Hannes Dorbath <light(at)theendofthetunnel(dot)de>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Memory settings, vm.overcommit, how to get it really safe? |
| Date: | 2007-05-18 13:24:01 |
| Message-ID: | 82k5v62rke.fsf@mid.bfk.de |
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| Thread: | |
| Lists: | pgsql-general |
* Scott Marlowe:
> What distro / kernel version of linux are you running? We have a
> similar issue with late model hardware and RHEL4 recently here at
> work, where our workstations are running out of memory. They aren't
> running postgresql, they're java dev workstations and it appears to be
> a RHEL4 on 64 bit problem, so that's why I ask.
When Java sees that your machine has got plenty of RAM and more than
one CPU, it assumes that it's a server and you want to run just a
single VM, and configures itself to use a fair chunk of available RAM.
This is more or less a Sun-specific issue. Other Java implementations
make different choices.
--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99
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