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Posted by: Bob Cozzi
Rogue Programmer
Cozzi Productions, Inc.
Chicagoland
Performance of the Rreadn (rec I/O) API
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Published: 01 May 2013
Revised: 02 May 2013 - 1512 days ago
Last viewed on: 22 Jun 2017 (2421 views) 

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Performance of the Rreadn (rec I/O) API Published by: Bob Cozzi on 01 May 2013 view comments(2)

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Posted by: KevinLandWaster
Premium member *
Sydney, NSW, Australia
Comment on: Performance of the Rreadn (rec I/O) API
Posted: 4 years 1 months 20 days 20 hours 8 minutes ago
Edited: Wed, 01 May, 2013 at 17:23:46 (1513 days ago)

Hi Bob,

Two things: blocking when you _ROpen, and also not having a separate buffer - using the inbuilt buffer & then setting a pointer to your record structure to the inbuilt buffer. The latter is documented in TFM somewhere. (Library functions where _Rxxx are documented or maybe C programmer's guide).

 

 

Posted by: bobcozzi
Site Admin ****
Chicagoland
Comment on: Performance of the Rreadn (rec I/O) API
Posted: 4 years 1 months 19 days 23 hours 39 minutes ago

Thanks Kevin. I'm doing those two things and it hasn't helped. I'm going to play with the SEQONLY and NBRRCDS parameters of the OVRDBF command to see if it helps.