On 07/24/2012 04:06 PM, Heinz Diehl wrote: > On 23.07.2012, Milan Broz wrote: > >> I do not like this dmcrypt mode a we tried to fix it. There is a bunch of patches >> from Mikulas Patocka which switches parallelization to use all available >> cpus (if not limited by paramater). >> In my tests it improved performance in some cases but not in all situations >> (there were some slow downs which scares me). >> (You can see patches here http://people.redhat.com/mpatocka/patches/kernel/dm-crypt-paralelizace/) > > This is definitely the way to go, in the age of > multicore-systems. Some of the patches are already included in > linux-3.5, and the rest needs to be rebased on top of it. I'd like to > try the whole series on a quadcore testing machine, but I'm not > familiar with the code in most of the patches, and only one single > wrong merge could lead to wrong conclusions. You can use my working repo, it can be applied cleanly on top of 3.5 http://mbroz.fedorapeople.org/dm-crypt/parallel/ But I run just very simple test, there can be mistakes. (There are still a lot of questions and maybe some ideas will not be implemented this way, Anyway, if you can prove it helps in your config, let me know.) Milan _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
