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New Pure apples to apples?
I did it a while back, at least as best I could.
I had the same software running on the MF and Linux.
I seem to recall I was about 5 times faster.

But now we are going to different software. So it
will always be apples to oranges. No point in me
installing the Linux version of the software we
will not buy.

Also, I just realized that about 80% of the time of
the MP process is creating reports. Reports that
we may not have been getting from the previous
vendor. I can probably cut another hour or 2
for reports we weren't getting.

Also, the IO wait time can be helped. I am going
against RAID 10 disk for temp files. I should just
have a pure RAID 0 stripe.

Gotta reconfigure the disk for that one.

Those type of optimizations will NEVER be done on
the mainframe.

RAID 0? Not on the big EMC array!
New Cut off an hour
9.5 hour process went to 8.5.
Used RAID 0 disks for temp space.
My bonnie++ write rate went from 80MB a second to 300MB per second. But my read read went down a bit, proving alternative reads on mirrored disks work.
I won't keep it like this, too scary.
It is pure temp, but I still don't want to have to recover from a failure.
     Merge/Purge On Linux - (broomberg) - (16)
         " Gleefully participating in the heat death of the Universe! -NT - (Ashton)
         Not Done Yet are you (Now with EIDE and SCSI) - (folkert) - (6)
             The disks are too small - (broomberg) - (5)
                 Try the SAP-DB stuff on - (folkert)
                 RAID 10 == Nice for Data Protection... - (folkert) - (3)
                     Explain - (broomberg) - (2)
                         RAID 1 can beat RAID 0 - (ben_tilly)
                         Not always so. - (folkert)
         Funny you should say something about Disk-as-Tape - (folkert) - (1)
             Could of seen it? DID! - (broomberg)
         Speaking of optimization ... - (drewk)
         Re: Merge/Purge On Linux - (lincoln) - (4)
             I'm trying! -NT - (broomberg) - (3)
                 And notice that I didn't here? - (lincoln) - (2)
                     Pure apples to apples? - (broomberg) - (1)
                         Cut off an hour - (broomberg)

"It grew, as the sum of a lot of separate people's ad-hockery, most of those by people who had no idea what they were doing, and would gladly pound screws with a hammer all year long, for lack of acquaintance with the concept of screwdrivers." - Rick Moen
46 ms