[RC5] Performance running rc5des388 on Linux

Charles P. Wright cpw at unix.asb.com
Sat Jan 24 20:33:18 EST 1998

William M. Perkins wrote:
> My original message on 22 Jan 1998
> >
> > The rc5des388-mt version on a 166 MHz Pentium MMX running RedHat
> > Linux 5.0 and using the 2.0.33 kernel.  The rc5des381-mt version
> > was giving me a rate of 680,000 keys/sec while the new rc5des388-mt
> > version only runs at rate 42,000 keys/sec.
> >
> > I am wondering what gives
> >
> After I rebooted my system today after a power failure and
> restarted the rc5des388-mt client, I am now getting about
> 790,000 keys/sec instead of 42,000 keys/sec.  The system had
> been running for 13 straight days before the power failure.
> I am still wondering what gives.
You must have had a process stealing cycles, for two hours yesterday a
less process was eating up my CPU, but if you don't run top you won't
notice it because Linux handles the scheduling so well.
Charles P. Wright
cpw at unix.asb.com.

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