Paul Gilmartin wrote:
On Tue, 26 Feb 2013 18:59:01 -0500, Robert A. Rosenberg wrote:
You want Quadword alignment of something in the CSECT without any gas
preceding it due to it being Quadword aligned. IOW: It has an offset
of an odd number DWs from the start of the CSECT.
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?) So it might have been useful to page in 6KiB
quanta, and alignment on a 6KiB boundary (not a power of 2)
might have been useful.
I suppose data chaining could handle that sort of thing.
<snip>
For load modules the best block size on any device remains 32,760. I
can re-post why, but I've posted it before and it's in the archives.
IIRC (always a dangerous assumption), the page size changed from 2K to
4K in MVS 3.8 SE2.
--
John Eells
z/OS Technical Marketing
IBM Poughkeepsie
[email protected]
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