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point_lun is slow
- Subject: point_lun is slow
- From: George McCabe <george.mccabe(at)gsfc.nasa.gov>
- Date: Wed, 27 Oct 1999 10:23:17 -0400
- CC: george.mccabe(at)gsfc.nasa.gov
- Newsgroups: comp.lang.idl-pvwave
- Organization: NASA Goddard Space Flight Center -- Greenbelt, Maryland USA
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:16951
hello,
reading from a data file at regularly spaced byte locations, 2 bytes at
a time using point_lun - my program is abnormally slow. i don't have
enough experience to guess whether the poor performance is inherent to
point_lun & readu approach or if there are options which are affecting
execution adversely.
i'ld appreciate any thoughts on the topic which might lead to a
solution.
thank you,
george mccabe, gmccabe@replica.gsfc.nasa.gov