>>>> /usr/src : zfs with compression enabled >>>> /usr/src : 386.3MB/s
>>> Do I understand it well? It seems that zfs with compression enabled on >>> /usr/src with 8KB block size and 16 threads performs 386.3MB/s which >>> is about 6 times better than debian5? I am thinking about this image >>> http://tech-blog.wooh.hu/~wooh/debian_vs_freebsd_io_16_seqwr.png >> >> Yes - on one run it even hit 500MB/s. I suspect, however, that the >> benchmark isn't accurate because it won't be writing typical data. >> Instead it's probably using a buffer that compresses very well. > > Hm.. My ZFS tests showed me the same results. With compression it's > pretty fast. That's hardly a surprise - you take the source code, compress it into virtual non-existence leaving hardly anything to be written to the disk... Obviously if compression speed >> IO speed and the result of the compression is a significant reduction in size, you have a massive gain in writing that data to the disk. -- Igor _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
