Re: Memory settings, vm.overcommit, how to get it really safe?

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От Florian Weimer
Тема Re: Memory settings, vm.overcommit, how to get it really safe?
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Msg-id 82k5v62rke.fsf@mid.bfk.de
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Ответ на Re: Memory settings, vm.overcommit, how to get it really safe?  (Scott Marlowe <smarlowe@g2switchworks.com>)
Ответы Re: Memory settings, vm.overcommit, how to get it really safe?  (Scott Marlowe <smarlowe@g2switchworks.com>)
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* 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@bfk.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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