On 07/11/2012 04:23 PM, casper....@oracle.com wrote: > >> On Tue, 10 Jul 2012, Edward Ned Harvey wrote: >>> >>> CPU's are not getting much faster. But IO is definitely getting faster. >>> It's best to keep ahea > d of that curve. >> >> It seems that per-socket CPU performance is doubling every year. >> That seems like faster to me. > > I think that I/O isn't getting as fast as CPU is; memory capacity and > bandwith and CPUs are getting faster. I/O, not so much. > (Apart from the one single step from harddisk to SSD; but note that > I/O is limited to standard interfaces and as such it is likely be > helddown by requiring a new standard.
Have you seen one of those SSDs made by FusionIO? Those things fit in a single PCI-e x8 slot and can easily push a sustained rate upward of several GB/s. Do not expect that drives are the be-all end-all to storage. Hybrid storage invalidated the traditional "CPU & memory fast, disks slow" wisdom years ago. Cheers, -- Saso _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
