With 64 bit J in XP64 I have noticed that after some time the J
program becomes slower. For example 1,5 hours identical computation
(using mapped files of 1300MB) takes 10 hours. After restarting the
operating system the computation speed returns to the original status.
This is obviously not only related to J, but there is so little
information what and why such happens. I have no idea what happens
there. Only thing I see is Task Manager that shows that J is taking
longer CPU time.
I wonder if somebody has this similar experience? Is there any idea
what I should to observe to find the reason that makes J run slower?
Anssi
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