LOCTR is your friend. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Binyamin Dissen <[email protected]> Sent: Saturday, August 24, 2024 3:02 PM To: [email protected] Subject: Re: Non-reentrant program not allowed (where?); Advantages of reentrant programs? On Sat, 24 Aug 2024 01:52:46 -0500 Brian Westerman <[email protected]> wrote: :>As for execution speed, there is no real difference, once the program starts, code is code. If the working storage is proximate to the code there will be a performance cost as data and code use different cache lines. So a change to data near code will require the cache line to be written to storage and read back into the code cache. -- Binyamin Dissen <[email protected]> http://secure-web.cisco.com/1iT1nyNJBgPBXhq1EDDX36-rFtiMeM1lAeJ_GTx6N-zVrmdClXnecd2aWlOUSrscWgGn8xr1ENkOky37gKlfPlch9JdmpPIb35exDlXOOkG670okFcqaSLPAd9bWAwhDBwYNH5HzWpHV1xPLkxmCY9SRoD8W0RJ-kCqWurdIUgAPQmzY9MdNQWcskJglH63PGFW2tYZB_MsB8fIZD4L1a3b9frpzR0pCCLeH1Z8Ju3m9rCOvStlE3LgGbUpRZpVjc6Vk_aXZ2jVA0iJ21pab-h7dlxhnAbgvfsOuoENmDcsjC4FbKaU4gGVM3acYlMJ4BdILE6Hrk2k_lqucT3t_lns7P194EEx-gyIMbfcbHu1oFXGoqmr_pKkH0EOTMClwhkpXbrjcxjh32i1UqG0OQJTIcy635-Zbu4PPFJiNduTg/http%3A%2F%2Fwww.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
