At Monday 27 April 2009 08:35:11 Mike Frysinger wrote : > On Tuesday 21 April 2009 08:19:23 Philip Rowlands wrote: > > On Tue, 21 Apr 2009, Toralf F?rster wrote: > > > For a long time I used the command "factor" to test my system WRT the > > > cpu ondemand governor of the linux kernel, eg for issues like this : > > > http://bugzilla.kernel.org/show_bug.cgi?id=12385 > > > > > > However switching from coreutils-6.10 to 7.1 (stable Gentoo Linux) now > > > the factor command is too fast: it takes only 0.003 sec instead of 5.5 > > > sec for the same prime number. > > > > That's probably due to this entry from NEWS: > > > > * Noteworthy changes in release 7.0 (2008-10-05) [beta] > > > > If the GNU MP library is available at configure time, factor and > > expr support arbitrarily large numbers. Pollard's rho algorithm is > > used to factor large numbers. > > if GMP is too fast, then you could try building coreutils with USE=gmp. if > coreutils itself got a new algo, then i guess save the old binary ... > -mike
Thx, I like this speed improvement in general - and this was really impressive - and b/c I was pointed to the command timeout BTW this has the advantage that I do not have to wait 3x longer (600 MHz versus 1700 MZh) to realize that the ondemand governor doesn't work :-) -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils