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Math Forum / Math Software / SAS / October 2008



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SAS on linux is slower than Windows

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Mehdi Soleymani - 06 Oct 2008 09:01 GMT
recently I installed sas (9.1.3 sp4) on ubuntu and I felt that it is slower
in some cases.
for this reason I tried to install the same version via wine on linux and I
found that sas on wine is faster than the same one on linux itself. for
example the following sas code:

proc iml;
x=j(10000000,1,.);
call randgen(x,'normal');
y=x[:];
quit;

windows:
real 1:40
cpu  1:30

ubuntu:
2:05
1:72

even the I/O in wine is faster
for example creating data:

windows:
36.02
34.48

ubuntu:
47:60
47:38
xav - 06 Oct 2008 13:54 GMT
Hi

and you write on the same FS ? (ext3?)

Xav

> recently I installed sas (9.1.3 sp4) on ubuntu and I felt that it is slower
> in some cases.
[quoted text clipped - 26 lines]
> 47:60
> 47:38
Peter - 06 Oct 2008 20:59 GMT
> Hi
>
[quoted text clipped - 34 lines]
>
> - Show quoted text -

A collegue used sas on windows to import and index a 6GB, 16m obs data
set on windows. The 12 minutes elapse (<3mins cpu) was a lot shorter
than the 40 minutes cpu time the same indexing took on a mainframe.
.....  but the pc was servicing just one client, and not several
hundred.

Simple performance stats are sometimes not informative enough

PeterC
 
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