In <[email protected]>, on
02/26/2013
   at 08:39 PM, Paul Gilmartin <[email protected]> said:

>What I was more thinking of was that on the 3350 an optimum block
>size was 6KiB, 3 times the 2KiB page size supported on the S/360
>(370?)

The S/370 supported both 2 KiB and 4 KiB pages; the 360/67 only
supported 4 KiB. As I recall, DOS/VS and OS/VS1 used 2 KiB, while
OS/VS2 used 4 KiB. I don't recall what page sizes Virtual Machine
Facility/370 supported.

>I suppose data chaining could handle that sort of thing.

Channel indirect data addressing (CIDA) would probably be less
overhead.

-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     Atid/2        <http://patriot.net/~shmuel>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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