[issue35238] Alleviate memory reservation of fork_exec in subprocess.Popen via forkserver

[Oscar Esteban]

Oscar Esteban <oesteban at stanford.edu> added the comment:

Hi Victor,

That would be great. However, we played a bit with an alternative implementation of posix_spawn (one I got from one related bpo), and it didn't seem to make any difference in terms of memory allocation.

Then, we found out that posix_spawn uses fork by default (Linux implementation). So the large memory allocations still happen. One can set the vFork option, but that is apparently a very bad idea, as far as we read.

Is that correct?

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