On Tuesday, 23 October 2012 at 22:19, McClintock Matthew-B29882 wrote: > On Tue, Oct 23, 2012 at 1:45 PM, Elvis Dowson <elvis.dow...@gmail.com > (mailto:elvis.dow...@gmail.com)> wrote: > > The only curious thing that I've noticed is that I don't see a large > > performance improvement using a standard 3TB Seagate Barracuda 7200 RPM > > HDD, and the two Intel Series 330 SSDs in a striped RAID0 configuration. > > The read (600MB/s) / write (838MB/s) figures are impressive, although I > > expected the read performance to be higher than write performance, as is > > normally with a single SSD. I'm using the motherboard's hardware RAID > > support on a 6GB/s SATA 3 port. > > > > You probably don't use much disk I/O with 16GB of memory for a build. My machine has 16G of RAM, and after a good build will have 12G of "cache" (according to /proc), but the disk activity light was frantic. I can only imagine it would be more frantic with less RAM to act as an over-sized disk cache.
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