No. You need BPX_SHAREAS=YES for them to share.

-- 
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
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________________________________________
From: IBM Mainframe Discussion List <[email protected]> on behalf of Jon 
Perryman <[email protected]>
Sent: Wednesday, September 10, 2025 12:06 AM
To: [email protected] <[email protected]>
Subject: Re: Pipelines = you don't understand z/OS


External Message: Use Caution


On Tue, 9 Sep 2025 21:55:56 -0500, Mike Schwab <[email protected]> wrote:

>I did not realize *nix had multiple paging tables.

The only reason I know is because *nix processes don't share memory but z/OS 
Unix processes coexist in an address space unless specifically requested. Each 
*nix process has a page table with page table levels. It's unclear but these 
levels seem to be *nix answer to z/OS subpools but then again, maybe they 
don't. The newer *nix hardware seems to have 6 levels to allow larger address 
spaces.

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