Check everything is aligned properly. Maybe test this dm-crypt performance proposal too: http://people.redhat.com/mpatocka/patches/kernel/dm-crypt-paralelizace/current/series.html The last couple of patches in particular are 'unexpected'. Also experiment with the queue depth of the devices: nr_requests (/sys/block/<dev>/queue) is often far too small by default. Alasdair _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt