IBM Z Software


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Use of Optimised Schema Defns to improve perf in CICS SIAP Web Services

One of the 'issues' with CICS WS SOAP based services is that XSD validation needs to switched off in live Prodn operation due to the overheads involved. Could though the use of OSR's (Optimised Schema Defns) help here and provide a route by which ...
11 days ago in CICS Transaction Server for z/OS / Runtime 0 Under review

When allocation/open fails DFHFC0500, display conflict information somewhere

Right now, when this situation occurs, it is sometimes difficult and labor intensive to figure out why this happened. Sometimees requiring scanning SMF data, looking at dumps, etc. Would be helpful to display the conflict information (usually zOS ...
about 2 months ago in CICS Transaction Server for z/OS / Runtime 0 Under review

Make CICS WEB interface threadsafe and optimize throughput and response time in CICS and maybe save a little CPU

IBM has an undocumented fix to the CICS WEB interface that can optimize throughput and response time plus maybe save a little CPU.The fix is very simple, as it is just a change of the definitions of three WEB interface modules which get added the ...
about 2 months ago in CICS Transaction Server for z/OS / Runtime 0 Under review

Enable turning USER EXITs on and off through CPSM, CICS Explorer, etc.

Currently this can only be done through the CICS SPI. However, it's not hard to create an exit that locks everyone out of the native CICS black screen (in our case, this was the desired outcome, except for system users), and (as a side effect) pre...
about 2 months ago in CICS Transaction Server for z/OS / Runtime 0 Under review

SMF110 - Log DFHDS0102 Percentage Ratios to SMF; both QR/CPU ratio; Dispatch Interval ratio

Log to SMF110; Ratios for: DFHDS0102 I 09/14/2025 07:04:40 CICSQCPR QR TCB CPU / dispatch ratio: nn.nn%. QR TCB dispatch / interval ratio: nn.nn% This is for consistancy rather than manually calculating. Performance consistancy with statistics rep...
about 2 months ago in CICS Transaction Server for z/OS / Runtime 0 Under review

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