> Is it simply a matter that the code exists for Expanded storage, so you > continue to use it rather than write new code that could also benefit > from the ability to write from Central to DASD directly? > [snip] > Put another way, couldn't an OS such as z/VM, perform better using only > Central Storage if the code were written specifically to target Central > storage. - Please note the word "could" :-)
Yes, it could be rewritten to assume central everywhere. Given all the other things that are going on, this part of CP isn't broken, so it probably isn't really high on the list of things to fix. Just looking at the fancy AR mode tricks added to CP in 5.2 to remove some of the 2G I/O limitations makes me shudder to think of how hard to debug that was. Paging is in some of the most critical code in CP; I'd really rather they NOT mess with it if it isn't necessary. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
