Mikael Abrahamsson <swmike@xxxxxxxxx> writes: > On Thu, 11 Feb 2016, Marc MERLIN wrote: > >> But can someone confirm that indeed if I have a single md device, >> and 4 CPUs, my throughput is not limited by a single CPU decrypting >> the device? > > There have been multiple discussions about this over time, and since > you didn't qualify "not good" with a number, it's hard to say if this > is your problem or not. About a year ago when I last received a new laptop, I put btrfs on top of luks - it was a rather miserable experience. The system would freeze up and be really slow. I believe the issue was btrfs not acting well with crypto underneath it, and there was hallway talk confirming this but I have no hard data. In the end I gave up and put my /home on xfs on top of LUKS and used btrfs for the uncrypted portions. It may be the btrfs with crypto issues have been resolved since then. Cheers, Jes -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
