Subj : Re: programming with large memory requirements To : comp.programming From : Ben Pfaff Date : Wed Sep 28 2005 08:52 am Randy Howard writes: > Ben Pfaff wrote > (in article <87wtl19swi.fsf@benpfaff.org>): > >> Randy Howard writes: >> >>> Ben Pfaff wrote >>> (in article <878xxhc27s.fsf@benpfaff.org>): >>> >>>> Randy Howard writes: >>>> >>>>> Let me know when you locate a ram drive for a 32-bit box that >>>>> supports 9GB ramdisks. >>>> >>>> If your 32-bit box supports 9 GB RAM, then there's little reason >>>> to believe it wouldn't support 9 GB RAM disks. Why not? >>> >>> Then it should be easy for you to name one. :-) >> >> A brief scan through the Linux 2.6 ramdisk driver doesn't show >> any arbitrary limits. It's based out of the page cache, which is >> itself not limited to 4 GB on 32-bit boxes. > > http://www.ussg.iu.edu/hypermail/linux/kernel/0407.0/0586.html Hmm. Well, that's disappointing, but there are two approaches to dodging the problem mentioned in that thread: use ramfs instead of a ramdisk, or concatenate multiple 1 GB ram disks using a raid driver. Either one would allow the effect of a 9 GB ram disk. -- "The sound of peacocks being shredded can't possibly be any worse than the sound of peacocks not being shredded." Tanuki the Raccoon-dog in the Monastery .