[Info-vax] V9.2-1 Page file size

Arne Vajhøj arne at vajhoej.dk
Sat Feb 24 19:12:48 EST 2024


On 2/24/2024 2:18 PM, Chris Townley wrote:
> Just upgraded a VM from 9.2-1 to 9.2-2 which seemed to have worked well.
> 
> Bearing in mind this us just a hobbyist system, when I created the VM I 
> gave it 8GB memory, and an 8Gb system disk
> 
> That was fine, and it created a 2Mb pagefile, not expecting it to be used.
> 
> The autogen run at the end of the upgrade obviously though this was 
> rubbish, so tried to create an 8Gb pagefile on the system disk. Clearly 
> it couldn't, so it created one of over 4Gb - leaving me with 120Mb free.
> 
> It also wanted an 8Gb dumpfile.
> 
> Is any of this sensible?

I believe that is one of the differences between Windows and VMS. On
Windows plenty of RAM and no/small pagefile works fine. VMS want
pagefile backing of virtual memory even if it is not likely to
need it. And running out of pagefile space is bad - very bad. So I got
1 x 8 GB pagefile on my VMS x86-64 and 3 x 1 GB pagefile on
my VMS Alpha (can't remember what I have on my VMS Itanium).

Arne





More information about the Info-vax mailing list