Oh well. I built LZO, and can't seem to link it in the lzop build, despite correctly setting the FLAGS variables they say in the INSTALL file. I'd love to provide an lzop comparison, but can't get it. I give up ... Also, can't build python-lzo. Also would be sweet, but hey.
For whoever cares, here is the comparison that I do have: I'm doing a "zfs send" of my rpool, piping through the named compressor, and dump to /dev/null. rpool is on a 2-disk mirror, SATA 7200 2 sockets 4 core Xeons (total 8 cores, capable of 16 threads) System idle in all respects, except this activity. Threadzip is using zlib (similar or same as gzip) breaking stream into 5M chunks and parallel threading the compression of those chunks. ------------------------------------------- pass1 9.52GB 2m14.578s-------no compression 5.69GB 2m15.963s-------threadzip 32 threads --fast 5.69GB 2m13.609s-------threadzip 16 threads --fast 5.69GB 2m21.968s-------threadzip 8 threads --fast (Above, "zfs send" is the bottleneck. Don't know if compressor can go faster.) (Below, the compressor is the bottleneck.) 5.69GB 3m17.789s-------threadzip 4 threads --fast 5.56GB 3m29.619s-------threadzip 16 threads --best 5.56GB 4m24.761s-------threadzip 8 threads --best 5.44GB 5m13.139s-------pbzip2 auto 5.44GB 5m21.030s-------pbzip2 16 processes 5.44GB 6m4.915s--------pbzip2 8 processes 5.70GB 7m41.209s-------gzip --fast ------------------------------------------- pass2 9.52GB 2m17.858s-------no compression 5.69GB 2m13.446s-------threadzip 32 threads --fast 5.69GB 2m9.842s--------threadzip 16 threads --fast 5.69GB 2m22.388s-------threadzip 8 threads --fast (Above, "zfs send" is the bottleneck. Don't know if compressor can go faster.) (Below, the compressor is the bottleneck.) 5.69GB 3m10.701s-------threadzip 4 threads --fast 5.56GB 3m27.772s-------threadzip 16 threads --best 5.56GB 4m22.409s-------threadzip 8 threads --best 5.44GB 5m15.247s-------pbzip2 auto 5.44GB 5m21.089s-------pbzip2 16 processes 5.44GB 6m5.412s--------pbzip2 8 processes 5.70GB 7m22.505s-------gzip --fast _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
