It may have depended which OS was ran. The first one I ran was VM/SP with an
OS/VS1 guest. I don't remember if we migrated to MVS, but I don't think so.
The other one I ran was VM/SP only.
So 4331 and 4341 were "counter height" but 2-3 units long and the 4381 was a 1
unit upright?
I contracted to help a neighboring site recover their CICS install, someone had
deleted all DLIBS. They had a small 4300. I'd said we could do it in a day,
until I saw how slow their tape moved. It took over an hour just to RECIEVE
the tape :-)
Remember "Meaningless Indicator of Processor Speed" :-)
Len Rugen
rugenl at yahoo.com
On Thursday, July 31, 2025 at 11:27:27 AM CDT, rpinion865
<[email protected]> wrote:
In 1981, running IMS/DB/DC TSO/SPF (not ISPF), IMS MPPs, and batch on
370/168. MVS SP 1.x.
"Confidentially doc, I am the wabbit."
Bugs Bunny
Sent from Proton Mail Android
-------- Original Message --------
On 7/31/25 6:03 PM, Pommier, Rex
<[email protected]> wrote:
> Guess the numbers I was given so many years ago for the models 13/24 may
>have been a bit off. This chart says 4.5 and 9.9 MIPS, I was told way back it
>was 3.3 and 8. In either case, a really small computer (by todays standards)
>to run a 400 bed hospital.
>
> Rex
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
>Phil Smith III
> Sent: Thursday, July 31, 2025 10:46 AM
> To: [email protected]
> Subject: [EXTERNAL] Re: 4381 capacity and performance
>
> That would explain our joy if so--we went from a 0.5MIPS Formation 4000 PCM
>to a 9370 (1 MIPS?) to a 4381-1 IIRC.
>
> BTW,
>https://urldefense.com/v3/__http://www.roylongbottom.org.uk/mips.htm__;!!KjMRP1Ixj6eLE0Fj!p5J4NkHQq9ilopVQNEwdZhKLBuIbSA-yNk4T4bKv11rtL0rmKeOGL_GfsclRyxfzGjwO-7PkYCEgyow$
> shows MIPS including 9xE, though I expect Shmuel already saw that.
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
>Pommier, Rex
> Sent: Thursday, July 31, 2025 10:10 AM
> To: [email protected]
> Subject: Re: 4381 capacity and performance
>
> From ancient memory, the model 13 was rated at 3.3 MIPS and the 24 was 8
>MIPS. They were the first 2 machines I worked on. IDK if that is
>extrapolatable to the relative performance your chart shows. I don't have
>documentation to verify these numbers.
>
> Rex
>
> -----Original Message-----
> From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
>Seymour J Metz
> Sent: Thursday, July 31, 2025 9:00 AM
> To: [email protected]
> Subject: [EXTERNAL] 4381 capacity and performance
>
> Does anybody still have information on 4381 capacity and performance? I'm
>trying to update the table in
><https://urldefense.com/v3/__https://en.wikipedia.org/wiki/IBM_4300*Processors__;Iw!!KjMRP1Ixj6eLE0Fj!sc4M3mw4glfrd9fmBhhs8PGbCZiVpOwijZLNtTbc5dnHYUu09TFgAm3sJOz6hyH8iWDjo7XlpnJTs-ujnw$
> >, the 4381-MG91E/MG92E announcement doesn't mention storage capacity and I
>can't find the later model groups.
>
> --
> Shmuel (Seymour J.) Metz
>
>https://urldefense.com/v3/__http://mason.gmu.edu/*smetz3__;fg!!KjMRP1Ixj6eLE0Fj!sc4M3mw4glfrd9fmBhhs8PGbCZiVpOwijZLNtTbc5dnHYUu09TFgAm3sJOz6hyH8iWDjo7XlpnLzyNI2MA$
> עַם יִשְׂרָאֵל חַי
> נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
>
>
>
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