Maximum (of 10 goes using Roger's snapshot) 2.45567
Minimum 1.65141
(!)
Samsung Ultrabook NP540U3C
Intel i3-3217U CPU 1.8 GHz 2 Cores 4
logical processors
6 GB memory
JVERSION
Engine: j701/2011-01-10/11:25
Library: 8.02.10
Qt IDE: 1.1.3/5.3.0
Platform: Win 64
Installer: J802
install
InstallPath: c:/d/j802
Mike
On 05/07/2014 06:59, Roger Hui
wrote:
> I have observed a puzzling timing result which may be CPU
dependent.
> Please try the following and tell me what ratio you get,
and the kind of
> machine you ran it on. Thanks.
>
> On my machine, an
XPS L521X Intel Core i7-3632QM @ 2.2 GHz,
>
> x=: 1e6 $ ' '
> y=:
a. {~ ? 1e6 $ 256
> %/ 100 (6!:2)&> '/:~x' ; '/:~y'
> 2.44133
>
>
Basically, sorting a constant vector of 1-byte ints takes 2.4 times as
long
> as sorting a random vector of 1-byte ints.
>
----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
