This group is for all folks running the original IBM VM/370 Release 6 operating system (or later (e.g. VMTCE (Community Edition)) on Hercules. Like the other early IBM operating systems this version has always been in the public domain and so can be freely distributed. The base version as supplied by IBM is lacking in many facilities. IBM solved this by providing additional extension products which were licensed and so are not available. There are however many user enhancements available which can be installed. In addition, in order to get users up and running quickly updated "releases" of VM/370 included the most popular updates are available for download, so novices can start to learn VM without having to delve into the system internals. It is intended that this wiki will provide information on the base release and these updates.
The available versions are here :-
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OK - So which version of Hercules ...
We have: - Version 3.13 - http://www.hercules-390.eu/ - SDL Version?4.2.1 - https://github.com/sdl-hercules-390/hyperion - Version 4.0.0 - https://github.com/hercules-390/hyperion Having done no
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adriansutherland67
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#205
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Re: VM/370 Hercules Optimisation
Folks CPWATCH reports paging rate. Dave Sent: 29 January 2020 12:44 To: [email protected] Subject: Re: [h390-vm] VM/370 Hercules Optimisation Adrian, In my experience, I doubt you are doing all that
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Dave Wade
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#204
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Re: VM/370 Hercules Optimisation
Peter, I suspect that EPCS:VM produces a much bigger performance gain than AP or MP. ECPS:VM is the start of what eventually became SIE and microcode virtualization. So VM (aka CP) is a software
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Dave Wade
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#203
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Re: VM/370 Hercules Optimisation
Adrian, In my experience, I doubt you are doing all that much paging.? First off, the VM/370 CP IND command doesn't show paging stats like it did in later releases, so it is difficult to know how
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Bob Polmanter
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#202
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Re: VM/370 Hercules Optimisation
Honestly, the best improvement is going to come from ECPS:VM. https://github.com/sdl-hercules-390/hyperion/blob/master/readme/README.ECPSVM.md And i would highly recommend to get on fish's Hyperion
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Joe Monk
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#201
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Re: VM/370 Hercules Optimisation
Adrian, I'm not going to say whether you should run a Hyperion release or not; that is up to you.? There are pros and cons of Hercules 3.13 vs. Hyperion. As for ECPS, it is not a scheduling
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Bob Polmanter
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#200
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Re: VM/370 Hercules Optimisation
Noted - I will follow your advice and not bother yet.
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adriansutherland67
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#199
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Re: VM/370 Hercules Optimisation
Do I need to remove it? Or can it just sit there wasting space but otherwise doing no harm?
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adriansutherland67
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#198
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Re: VM/370 Hercules Optimisation
Adrian, VM/370 does not support MP mode.? That came in later releases of VM? (VM/SP). If you want to try AP-mode, there is a file in the files section called 'ap.zip'.? The stuff you need is in
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Bob Polmanter
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#197
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Re: VM/370 Hercules Optimisation
On the standard 6-pack 1.3 beta - what background users should/could I log off (if any)?
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adriansutherland67
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#196
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Re: VM/370 Hercules Optimisation
We are always going to have some paging aren't we (a real question) with only 16mb of physical storage and CMS machines configured for 16mb of storage ...
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adriansutherland67
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#195
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Re: VM/370 Hercules Optimisation
Thanks Bob - So actually should I use the latest Hyperion release, in any case? Not sure what ECPS:VM is (Enhances Scheduling - but ...) but perhaps I don't want to! Anyway - no changes needed to CP?
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adriansutherland67
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#194
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Re: VM/370 Hercules Optimisation
Thanks Dave For memory paging - I was wondering if IBM had a paging memory device (clearly not - thanks). Therefore (1) I am going to go ahead with experimenting with a small DASD drive for paging.
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adriansutherland67
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#193
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Re: VM/370 Hercules Optimisation
Adrian, 1. Can we up the number of CPU cores emulated - I know the answer if yes but will VM/370 use it? Do we need to change CP settings, and how? I suggest we try and target 4 given the state of
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Bob Polmanter
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#192
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Re: CP Query
I wrote: I failed to notice the abomination that is HRC370DK :-( If you want to continue with the same sort of awfulness, I think you need something like this mod to DMKCPI: ./ R 02143300 $ 02143310
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Peter Coghlan
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#191
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Re: VM/370 Hercules Optimisation
Its already much faster than my P390.... VM/370 only support two as an AP or MP but that¡¯s it. An individual user can only ever use one. On real hardware the extra work in keeping things in sync
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Dave Wade
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#190
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VM/370 Hercules Optimisation
Optimisation questions to improve VM/370 performance on Hercules: 1. Can we up the number of CPU cores emulated - I know the answer if yes but will VM/370 use it? Do we need to change CP settings, and
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adriansutherland67
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#189
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Re: CP Query
Hi Dave, If you leave out the last dot it would be a proper decimal number, as a Rexx person I see the advantages of that ;-) best regards, Ren¨¦.
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[email protected]
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#188
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Re: CP Query
Hi Dave, From a quick look around, it seems like "query cplevel" was added by CP mod HRC019DK and it's output modified by HRC100DK and HRC200DK. There is a QCPBLOK COPY added to DMKHRC MACLIB which
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Peter Coghlan
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#187
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CP Query
Folks I don't suppose that any one can help me. I want to stop calling the Six-Pack builds "beta" and just number them say 1.3.1, 1.3.2, etc. Any way I can fix most things but I can't figure out how
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Dave Wade
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#186
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