On Fri, Sep 25, 2015 at 03:07:54PM -0400, Austin S Hemmelgarn wrote: > > Interestingly, based on what dieharder is already saying about performance, > /dev/urandom is slower than AES_OFB (at least, on this particular system, > happy to provide hardware specs if someone wants).
Yeah, not surprised by that. We're currently using a crypto hash instead of AES, which means we're not doing any kind of hardware acceleration. Crazy applications that want to spend 100% of the CPU generating random numbers instead of you know, doing _useful_ work notwithstanding, /dev/urandom never had high performance as one of its design goals. The assumption was that if you needed that kind of performance, you would use a user-space cryptographic random number generator. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/