On Fri, 30 Jun 2000, Ben Laurie wrote:
> The point about using the user time is that it works when the machine is
> loaded. I agree about hardware accelerators - my thought when testing
> the Atalla is that we should provide two figures, a real-time and a
> user-time one, and the reader of the figures can decide which to use.
Even when using hardware accelerators, the CPU time can be useful. Eg. if
doing speed for 10 seconds shows 0.3 seconds of CPU time used, it gives a
measure of how free the CPU is to do other things while the card is
performing the crypto - in particular how many other hardware accelerators
it might be able to drive at the same time before it became an issue. If
10 seconds of hardware accelerated crypto requires 4 seconds of CPU, then
it shows the CPU is not 99-100 % free to do other things, and that the
host system itself probably can't be pushed to do much more than it
already is.
Anyway - thanks Richard - that is a damned fine and handy fix. :-)
Cheers,
Geoff
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