FLAM Issue Tracker - FL5
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0000224FL5[All Projects] y. Generalpublic2013-12-02 23:212014-02-03 16:50
Falk Reichbott 
Mykhailo Moldavskyy 
System zz/OSV2R10
0000224: Support of zEDC on z/OS + USS
To reduce the CPU usage for compression the support of the zEDC coprozessor is required.
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Issue History
2013-12-02 23:21Falk ReichbottNew Issue
2013-12-02 23:21Falk ReichbottStatusnew => assigned
2013-12-02 23:21Falk ReichbottAssigned To => Falk Reichbott
2013-12-02 23:22Falk ReichbottNote Added: 0000167
2013-12-18 07:38Falk ReichbottNote Added: 0000186
2014-01-21 14:46Mykhailo MoldavskyyAssigned ToFalk Reichbott => Mykhailo Moldavskyy
2014-02-03 16:50Mykhailo MoldavskyyStatusassigned => closed
2014-02-03 16:50Mykhailo MoldavskyyResolutionopen => fixed
2014-02-03 16:50Mykhailo MoldavskyyFixed in Version => 5.0

Falk Reichbott   
2013-12-02 23:22   
For FL5 we must simply link with IBM-zLib. For FLAM4 we must expand the ADC algorithm to Support the RFC1951/52.
Falk Reichbott   
2013-12-18 07:38   
To support deflate and inflate as part of the ADC mode in FLAM4 a new environment variable are required to enforce the use of the Software optimised algorithmen of limes or the GZIP (required for zEDC harware) compression.

FL_ADC_ALGORITHM=AUTO # Default will choose automatically the best algorithm
FL_ADC_ALGORITHM=GZIP # Always use GZIP (also if no hw accelorator available)
FL_ADC_ALGORITHM=LIMES # Always use software optimised compression (also if zEDC available)

To be backward compatible the envar must be set to LIMES. AUTO will allways be the default if not GZIP or LIMESW set.