2014-08-09 10:45 GMT+03:00 Pavel Machek <[email protected]>: > Warn about my quick benchmark? > > http://atrey.karlin.mff.cuni.cz/~pavel/quickbench.html > > I don't see what is insane about it. Yes, there might be more > effective generators of random bits, but that is not the point, this > is quick&dirty attempt at benchmark. > > Also people will use cat /dev/urandom > /dev/sdX (and similar) to > clean hard drives. There should be no need to warn about > that. (Performance is going to be disk-limited anyway).
I believe "cat /dev/urandom" doesn't result in reading with _block size_ more than 32 MB. As it was already explained by Theodore, currently single read() operation will return "short read" when requested to give more than 32 MB at once. You still can read more in consecuential reading acts. -- Andrey Utkin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
