Am 08.08.2012 16:29, schrieb Brian J. Murrell: > I thought I knew the answer to this question (dm-crypt multithreaded > yet? no) but I had read in several places that dm-crypt had gained > multithreaded capabilities. I'm still skeptical though. I certainly > don't see it on Fedora 17's 3.3.4-5.fc17.x86_64 kernel. > > Sadly, I don't have an AES-NI capable CPU, but I do have 4 (real, 8 with > HT enabled) cores and dm-crypting on my SSD reduces its performance down > from about 260MB/s (native) to 95MB/s. :-( I would like to think I > could get more performance out of it if more of the (usually available > anyway) CPU could be thrown at it. This is in 2.6.38 and later, I think: https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=c029772125594e31eb1a5ad9e0913724ed9891f2 The commit message also explains why you don't notice it.
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