On 20 Aug 2007 16:41:25 -0700, in bit.listserv.ibm-main
(Message-ID:<[EMAIL PROTECTED]>)
[EMAIL PROTECTED] (Russell Witt) wrote:
The main reason to block the TMC is space utilization
Actually, there's at least one more good reason to
block the TMC. Reading an unblocked TMC (for custom
reports or whatever) takes forever. When I used an
unblocked TMC, I always copied it to a blocked file via
sort, and ran my program against the copy. Despite the
extra step, it took *a lot* less time because of sort's
super-optimized I/O.
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