No -- bonnie doesn't need 1G ram -- bonnie needs to test using a file much larger than available ram to ensure that bonnie actually writes something to disk and not just to the VFS/buffercache layer. eric
Bo Moon wrote: > > Hi, > > What does 2*RAM mean? > His box has 512M RAM, so he need 2*512M for Bonnie? > Why? > > Thanks, > > Bo > > Chris Mason wrote: > > > > > > Linux box is 512M RAM. The files fit in buffer cache. I run the bonnies > > > of size n+50. Results are fairly constant until I hit about 300M. Then > > > they seem to fall off an edge. I'll include only two sample points for > > > each setup. > > > > Bonnie really needs 2 * RAM to be reliable. Notice how on the 100M > > test you've got 99% CPU usage? That's most likely because the 100M > > > -chris
