[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Swap overdraft

>>From: H C Lai <eeshcl@ee.bath.ac.uk>
>> Is there a way to make Linux run programme which requires more virtual
>> memory than the system can provide through real memory and swap ??

Some one said :

>Linux always runs in over commited mode. Pages are only used if a
>program is writing to it. And yes, this may crash the System if is
>trashing cause of fullswap.

Thanks for all the replies so far. The impression I get is that
Linux does support the 'over-commitment' mode. Kernel 2.0.0 definitely
does not support this. I have a ~10 lines of small fortran test
programme which basically creates a HUGE array in a common block and
then tries to use a small part of it. It failed with segmentation
fault on elf. But succeeds by just putting in more swap !!

I'll go back and try again.


Hong Cheng

TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to
debian-user-REQUEST@lists.debian.org . Trouble? e-mail to Bruce@Pixar.com

Reply to: