Override
is a product which is designed to significantly increase the performance
of VSAM in every installation. It does this in a way which is transparent to
the programs involved, does not alter any VSAM files and does not make any modifications
to VSAM itself. While each installation is different, experience with some installations
has shown potential savings to be astounding. The following savings have been
achieved in benchmarks of real life applications:
| |
Physical |
I/O's |
Elapsed |
|
| |
Typical sequential access |
33% |
10-50% |
|
| |
Typical random access |
25-50% |
40-60% |
|
| |
Clustered random access |
99% |
95% |
|
In fact, the performance benefits can be
so significant that it may be possible in some cases to defer
the purchase of new hardware. Perhaps best of all, these savings
can be realized almost immediately. Override installs in
minutes with no need to change any existing files, programs or
JCL.
|