Running into an issue on Windows Server 2019 that we never had on 2012 R2. Primarily the servers are used for websites running IIS and the same application on virtually all of them. We've been hitting resource exhaustions/low virtual memory issues and I'm wondering if it's the page file. On the 2019 servers that have say 12GB RAM (all virtual machines on VMWware) we have it set to automatically manage. the page file size is 2431 MB recommended and 7611 MB currently allocated. I realize things have changed it's not a straight 1.5x anymore, but... when I look at memory at the moment when we just got an exhaustion (which requires a reboot to clear) it has 11.1GB memory in use, 914MB available but committed is 19.1/19.4 GB. I guess my question is, if it needs more, why isn't it resizing the page file to accommodate? We've now seen this behavior on both 2019 servers we tuned up, but not on any of the 2012 R2 boxes.
for instance, my 2012 R2 shows 15.9GB is use, 86.7MB available (yes I know, add memory) but 40.2.45.4GB committed., so here the page file size increased when it needed too.