On 08/24/2012 12:25 PM, Julius Roberts wrote: > On 24 August 2012 15:03, Robbie Crash <[email protected]> wrote: >> Are you using compression or dedup on the FS? > > We're getting about 1.5x dedup
P.S. 1.5x for dedup is essentially worthless for its cost in RAM and performance. You'll be much better off with compression only, that alone can give you anywhere from 1.5x to 2.0x using an average compressible dataset at a much, much lower cost to performance (on that machine you have there lzjb should be able to give you well in excess of 100-150MB/s write performance). See https://www.illumos.org/issues/3035 for a few comparative compression benchmarks I did when integrating LZ4 compression into Illumos. -- Saso _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
