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

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-------- 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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