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Best Practice Page File/Pagingfile (1.5 times RAM too much ?)
Hi,
It i recommended that for 64bit Servers, the page file should be 1.5 times the phys. RAM size.
source:http://www.bmesol.com/Qvs%20Reference%20Manual.pdf
[...
- Paging File Size defined as 4 GB or greater. For x64 systems, recommendation
is 1.5 times the amount of RAM.
...]
Well, we have a 128 GB RAM machine that hosts a QV8.5 Server and usually peaks at around 50GB PF-Usage (says TaskManager). We have a Page File from defined to range from 1GB - 8GB.
According to the recommendations in the document we should increas the page file to 128+64=192 GB!
Does Qliktek or any QliKVoew Admin keep up this recommendation even in this specific case?! Could we expect a performance increase by increasing the paefile to such an incredible size?! Or will that rather be a waste of ressources (namely Disk-Space)
I rather tend to shrink the pagefile to 4GB (fixed) and put it onto a RamDrive, but shrinking the PageFile (even below 8GB) would clearly be in oppositino to the reccommendation, although I think the recommendation ist obsolete in our specific case.
Thanks in advance for your comments!

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Hi,
Having many servers with 256 Gb memory. All have fixed size pagefiles, ex 4 GB. Amount depends on workload, so follow Windows performance counters.
Why waste memory with a ramdrive?
-Alex

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We would not be wasting RAM. We would utilize some yet unutilized RAM!
For instance: We could create a RamDrive to store TMP *.qvd Tables there.Currently they are stored and loaded to the filesystem.

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Ramdrive has fixed size = wasting memory.
Windows implements file caching, meaning that recently used files are cached for fast access. If some program needs to allocate more memory, file will no longer be cached = read from disk next time. This means there is more available memory if not using ramdrive
-Alex
