I tested them for a very high capacity mail server to increase the speed of the queue. It was actually slower than using regular disk, you still have the overhead of the filesystem, and I think it takes more CPU because of something to with not being able to offload work to the DMA controller. Try making one and test it with bonnie or bonnie++ (search on freshmeat.net for them). I had a box with 1GB of ram and I tested a 512MB ramdisk. I highly doubt you'll get much more performance out of it, a single SCSI disk worked much better for me. Jay > -----Original Message----- > From: Eric Stanley [mailto:barnabas at knicknack.net] > Sent: Friday, March 16, 2001 2:17 PM > To: tclug-list at mn-linux.org > Subject: Re: [TCLUG] RAM Disks and Linux > > > I didn't really use them, I just set them up for an engineer who > wanted to write a large amount of data very quickly. I'm not sure he > ever got to the point of using the system I set up for him. Sorry I > don't have more info. > > Eric > > On Fri, Mar 16, 2001 at 12:47:21PM -0600, Liz Burke-Scovill wrote: > > > > What kind of performance increase did you see? This is a > concern because > > at least in Windows (yeah, I know can't really compare it, > but hey) Domino > > can be something of a slow mover - we want to optimize it > every way we can > > - we know that we see a performance increase in Windows, > and I want to > > test Domino on linux both using RAM disk and without using it - > > > > In response to another question Id' received via private mail - > > > > I was asked what I meant by RAM disk - in this case I mean > configuring > > extra RAM to be used as a RAM disk... > > > > Oh, here's another question - how would this conceivably > conflict with > > swap space? Or, does the way linux uses swap partitions > essentially negate > > the benefits gained by using RAM disk configuration? > > > > Thanks, > > Liz > > > > On Fri, 16 Mar 2001, > > Eric Stanley wrote: > > > > > I've used it under Linux although it's been a couple > years. It wasn't > > > a terribly big deal to set up then and it's probably > easier now. The > > > only issue I remember is that the default disk size was > quite small (4 > > > MB?). That was relatively easy to overcome. > > > > > > HTH, > > > > > > Eric > > > > > > On Fri, Mar 16, 2001 at 10:52:22AM -0600, Liz Burke-Scovill wrote: > > > > > > > > Ok - I'll admit I haven't gone out and done any > research, but thought I'd > > > > ask as I get charged with researching various things to > start moving the > > > > company towards a linux based environment...... > > > > > > > > One of the things we're interested in looking at is RAM > disk technology - > > > > has anyone used it either in a WinTel environment or in a linux > > > > environment? > > > > > > > > Thanks, > > > > Liz > > > > -- > > > > Imagination is intelligence having fun... > > > > e-mail: kethry at winternet.com > > > > URL: http://WWW.winternet.com/~kethry/index.html > > > > > > > > _______________________________________________ > > > > tclug-list mailing list > > > > tclug-list at mn-linux.org > > > > https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > > > > > _______________________________________________ > > > tclug-list mailing list > > > tclug-list at mn-linux.org > > > https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > > > > > -- > > Imagination is intelligence having fun... > > e-mail: kethry at winternet.com > > URL: http://WWW.winternet.com/~kethry/index.html > > > > _______________________________________________ > > tclug-list mailing list > > tclug-list at mn-linux.org > > https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > > _______________________________________________ > tclug-list mailing list > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list >