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Compression Processor Selector for Optimal Transfer

IP.com Disclosure Number: IPCOM000105743D
Original Publication Date: 1993-Sep-01
Included in the Prior Art Database: 2005-Mar-20
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Debry, R: AUTHOR [+4]

Abstract

Variations in hardware configuration, distributed environment system line load characteristics, and enterprise operational procedures can cause sub-optimal data movement and cycle utilization in a complex, distributed workstation/host environment. For this reason, it is imperative that total environmental load characteristics are analyzed and responded to in an automated way, in order to assure maximum utilization of a given Local Area Network configuration.

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Compression Processor Selector for Optimal Transfer

      Variations in hardware configuration, distributed environment
system line load characteristics, and enterprise operational
procedures can cause sub-optimal data movement and cycle utilization
in a complex, distributed workstation/host environment.  For this
reason, it is imperative that total environmental load
characteristics are analyzed and responded to in an automated way, in
order to assure maximum utilization of a given Local Area Network
configuration.

      In a UNIX*/MVS environment, the client/server relationship and
relative load are analyzed.  Based upon current utilization and
communications bandwith considerations, the algorithm optimally
selects the client (workstation) or the host (MVS mainframe) to
perform a compute intensive data compression.

In the ESMS mover method compression sub-component, a polling
algorithm of the form:

     Tc - (CwsL% * 1/ChL%) / (Lb*C11)k

Where:
     Tc       - target for compression
     CwsL%    - the current normalized workstation load.  Note that
                the normalization process includes a ratio function
                which relates relative workstation capability to that
                of the host.  A percentage.
     1/ChL%   - the current normalized host load percentage
     Lb*C11   - the current line bandwidth multiplied by the current
               ...