for and start commands in a batch for parallel and sequential work

Question

I have an 8 core CPU with 8GB of RAM, and I\'m creating a batch file to automate 7-zip CLI in exhausting most parameters and variables to compress the same set of files with

Answer 1

To execute at the same time no more than 8 instances of 7z.exe process you could do this:

@Echo OFF & Setlocal EnableDelayedExpansion

Set /A "pCount=0" & REm Process count

For
...
) DO (
     Set /A "pCount+=1"
     If !pCount! LEQ 8 (
       Start /B 7z.exe a teste.resultado\%%xx.ppmd.%%dd.%%ww.%%ss.7z .\teste.original\* -mx=%%x -m0=PPMd:mem=%%d:o=%%w -ms=%%s
     )
)
...

If do you want to run each process in a new parallel CMD window then you would replace the Start /B line on my code for this else:

CMD /C "Start /w 7z.exe a teste.resultado\%%xx.ppmd.%%dd.%%ww.%%ss.7z .\teste.original\* -mx=%%x -m0=PPMd:mem=%%d:o=%%w -ms=%%s"