On Thu, Mar 5, 2015 at 5:11 AM, Ross Bencina <[email protected]> wrote:
> On 5/03/2015 5:45 PM, Hamilton Feltman wrote: > >> It’s completely related to block size. Running this test with large >> block sizes, I could reach the maximum sequential read speed of the >> drive. >> > > The results on OSX might be related to block size. However according to > tests I've seen, the optimal block size for spinning disks (in general, not > OS-specific) is somewhere between 64k and 256k. I can dig out the paper if > anyone is interested. > Not any more Ross :) That is the blocksize used by current releases of ardour (256kB) but this testing process has forced us to increase this for the next release. 256kB is far, far from optimal on all systems we've tested so far.
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