Take your pick of answers:

1. I don't know.
2. It probably depends on the model.
3. It probably depends on what exactly is going on with the cache,
contention, etc.
4. I am going to guess the CS is cheaper than PLO because it is simpler.

Charles


-----Original Message-----
From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU]
On Behalf Of Seymour J Metz
Sent: Wednesday, January 9, 2019 11:52 AM
To: ASSEMBLER-LIST@LISTSERV.UGA.EDU
Subject: Re: Multi CPU interlock question

How does the cost of CS/CDS compare to PLO?

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