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 Post subject: Win8.1 x64 Virtual Memory settings with 32GB RAM and an SSD?
PostPosted: Sat May 03, 2014 8:15 pm 
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Joined: Fri Jun 16, 2006 12:36 pm
Posts: 293
nb4 "just disable it" and "I just set it to x and have had it set there for the last 10 years and haven't had any problems"
Read this before replying:
http://blogs.technet.com/b/markrussinov ... pi137228=7
I have 32GB of DDR3 and a 256GB 840 Pro. Commit peak was 33693860KB, and the amount of RAM in the system is 33554432KB, which means the minimum should be set to 139428KB and the maximum should be 278856KB according to the article, which is 137MB and 273MB rounded up. However, when I set it below that, Windows sends an error pop-up saying that crash reports can't be gathered if it's set less than 800MB. I've seen other posts saying to set the minimum and maximum to the same amount to avoid defragmenting the page file; I have both set to 800MB right now.

 Post subject: Re: Win8.1 x64 Virtual Memory settings with 32GB RAM and an
PostPosted: Sat May 03, 2014 8:50 pm 

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 5898
Crash report sizes are dependent upon RAM in the system I believe. So the less RAM you have, the smaller you can make the page file before it gives you that warning. But this is only if you really care about crash reports/crash dumps. If you don't care about them, you can set the page file size to whatever you want.

Just an offhand topic because I've seen it come up... Should the page file be on the SSD? And the answer is basically yes it should be

Yes. Most pagefile operations are small random reads or larger sequential writes, both of which are types of operations that SSDs handle well.

In looking at telemetry data from thousands of traces and focusing on pagefile reads and writes, we find that

  • Pagefile.sys reads outnumber pagefile.sys writes by about 40 to 1,
  • Pagefile.sys read sizes are typically quite small, with 67% less than or equal to 4 KB, and 88% less than 16 KB.
  • Pagefile.sys writes are relatively large, with 62% greater than or equal to 128 KB and 45% being exactly 1 MB in size.

In fact, given typical pagefile reference patterns and the favorable performance characteristics SSDs have on those patterns, there are few files better than the pagefile to place on an SSD.

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