Re: ILE C resident in memory

["Mark S. Waterbury" <mark.s.waterbury@xxxxxxx>]

Hello, Zvi:

Is this an ILE C main program?  How was it created, with CRTBNDC? 

CRTBNDC defaults to ACTGRP(*NEW), which imposes significant overhead if 
you are calling the same program over and over again. The CRTBNDC 
command does not provide any way to change the ACTGRP parameter, so you 
must use CRTCMOD and CRTPGM instead, and then you can specify 
ACTGRP(name) to create a named activation group.

Or, create a service program, with your C procedure that you need to 
call repeatedly, and specify ACTGRP(name) on the CRTSRVPGM command, and 
then create a very small "main" program (wrapper) that also runs in the 
same activation group, and calls the procedure in the service program.  
(Service programs are initialized in an activation group, and remain 
"activated" until either "end of job" or until you explicitly destroy 
the activation group, e.g. using the RCLACTGRP CL command.)

What procedures or functions within QC2POSIX are you using?  If you can 
provide some details about what your program is doing, then perhaps 
someone can comment on how to reduce this "overhead".

All the best,

Mark S. Waterbury

> Zvi Kave wrote:
> Hi,
>  
> I have ILE C program which is called many times every second.
> I found that QC2POSIX takes lot of CPU (40%). 
> Someone knows how to make ILE C program resident in memory?
>  
> Regards,
>  
> Zvi
>
>
>       
>