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Resolved Slow performances of large string, possible workarounds ?
  1. How-to
0 Votes
  1. François Rossignol
  2. PowerBuilder
  3. Wednesday, 15 April 2020 01:55 PM UTC

Hi

 

I have a log functionnality that reads data from a datawindow and concatenate it into a string.

When the string gets fairly large the performance plumets.

On my test case with 3600 lines in the DW

ls_string += ls_added_data => 25 minutes

ls_string = ls_added_data => 2 seconds

 

I know the fastfuncs dll would solve my problem but we plan on using PowerServer and last time we tested it was not compatible.

 

I wanted to write a simple C++ dll to concatenate the strings but I know nothing of C++ and so far my tests resulted in PB crashing.

I tried different datatypes and functions.

I had a sample function to add two numbers which works perfectly.

 

If someone would be kind enough to give me the code for the C++ function or any other way to work around that situation that would be really appreciated.

 

Regards,

François

PB 12.5 and the quarantine! Error when generated PBD in PB2019
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