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I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. Ed |
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#2
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Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. Ed There's a section here on it. It still doesn't shine any light on differences in the OSes as such. But does give some feeling for how much dynamic range Windows 8 has for the page file setting. Not only does it modify the size based on demand, but it also modifies the sizing based on "crash history". It's the "crash history" that would push it to use 1 x RAM. "Page file size for 64-bit... Windows" http://support.microsoft.com/kb/2860880 "Automatic memory dump: The Automatic memory dump setting at first selects a Small memory dump. a Complete memory dump... dump file of at least the size of physical memory (RAM)... System-managed page files: Min Max Windows 7 1 x RAM 3 x RAM or 4 GB Windows 8 crash dump 3 x RAM or 4 GB " Your Windows 7 is using 1 x RAM. Your Windows 8 appears to be selecting a size based on what it thinks it needs for a crash dump. Maybe it is sized big enough for a kernel memory dump and that is all, rather than a complete (1 x RAM) dump. If you set the pagefile to zero on either OS, it just means hobbling crash dumps. If you have a large pagefile, and you select the option to "clean pagefile at shutdown", that will seriously increase the shutdown time. You can select an option like that for security reasons (plaintext passwords paged out to pagefile?). Windows 8 actually has a total of three files, whereas the other OSes have two (pagefile/hiberfile). The third file on Windows 8 is a bit smaller. "Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8" http://www.thewindowsclub.com/hiberf...le-sys-windows "The Swapfile.sys ... is used to Suspend or Resume Metro or Modern Windows 8 apps." And the part of the KB2860880 article, near the bottom, where it says the fastest pagefile is selected by the OS, is bull****. I've tested that here, and older OSes continue to select the slower device. So when offered a faster device, there's no guarantee the OS will notice it is faster. It's almost like only certain types of devices get measured correctly. It doesn't seem to me that the OS uses a benchmark to decide what is "fast". Paul |
#3
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On Tue, 21 Jan 2014 18:56:15 +0000, Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. I have an SSD of 120GB which I use for W7 HP x64 SP1 and a SATA of 500GB for data. I have 8GiB of RAM. No paging file is set for C: and for D: it's set between 16 and 8.192 GiB. I don't care what is recommended. The paging file is never bigger than 16 MiB. At this moment 6% of it is used. -- s|b |
#4
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Paul wrote:
Ed Cryer wrote: I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. Ed There's a section here on it. It still doesn't shine any light on differences in the OSes as such. But does give some feeling for how much dynamic range Windows 8 has for the page file setting. Not only does it modify the size based on demand, but it also modifies the sizing based on "crash history". It's the "crash history" that would push it to use 1 x RAM. "Page file size for 64-bit... Windows" http://support.microsoft.com/kb/2860880 "Automatic memory dump: The Automatic memory dump setting at first selects a Small memory dump. a Complete memory dump... dump file of at least the size of physical memory (RAM)... System-managed page files: Min Max Windows 7 1 x RAM 3 x RAM or 4 GB Windows 8 crash dump 3 x RAM or 4 GB " Your Windows 7 is using 1 x RAM. Your Windows 8 appears to be selecting a size based on what it thinks it needs for a crash dump. Maybe it is sized big enough for a kernel memory dump and that is all, rather than a complete (1 x RAM) dump. If you set the pagefile to zero on either OS, it just means hobbling crash dumps. If you have a large pagefile, and you select the option to "clean pagefile at shutdown", that will seriously increase the shutdown time. You can select an option like that for security reasons (plaintext passwords paged out to pagefile?). Windows 8 actually has a total of three files, whereas the other OSes have two (pagefile/hiberfile). The third file on Windows 8 is a bit smaller. "Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8" http://www.thewindowsclub.com/hiberf...le-sys-windows "The Swapfile.sys ... is used to Suspend or Resume Metro or Modern Windows 8 apps." And the part of the KB2860880 article, near the bottom, where it says the fastest pagefile is selected by the OS, is bull****. I've tested that here, and older OSes continue to select the slower device. So when offered a faster device, there's no guarantee the OS will notice it is faster. It's almost like only certain types of devices get measured correctly. It doesn't seem to me that the OS uses a benchmark to decide what is "fast". Paul Thanks, Paul. I'll leave it set as it is then; ie. directly under the OS's control. This seems one major difference between 7 & 8. From which we can conclude that MS did a bit more than just camouflage 7 with a jazzier skin. Ed |
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Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. Ed i3 Windows 8.1 Pro 4GB Ram Software running - 2 Windows apps, iTunes, Internet Explorer, Excel, Windows Live Mail (Hotmail accounts), Outlook 2013, PhotoGallery, and SeaMonkey (news reader) Page file recommendation = 3419 Currently allocated = 640 -- ....winston msft mvp consumer apps |
#6
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Ed Cryer wrote:
Paul wrote: Ed Cryer wrote: I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the Windows-assigned page file sizes are very different. recommended currently allocated Win7 9130 6087 Win8 4079 1664 The Win7 seems spot-on to me. As for the Win8, well, I can't make head or tail of it, and my instinct is to simply change it to 6GB. Comments please. Ed There's a section here on it. It still doesn't shine any light on differences in the OSes as such. But does give some feeling for how much dynamic range Windows 8 has for the page file setting. Not only does it modify the size based on demand, but it also modifies the sizing based on "crash history". It's the "crash history" that would push it to use 1 x RAM. "Page file size for 64-bit... Windows" http://support.microsoft.com/kb/2860880 "Automatic memory dump: The Automatic memory dump setting at first selects a Small memory dump. a Complete memory dump... dump file of at least the size of physical memory (RAM)... System-managed page files: Min Max Windows 7 1 x RAM 3 x RAM or 4 GB Windows 8 crash dump 3 x RAM or 4 GB " Your Windows 7 is using 1 x RAM. Your Windows 8 appears to be selecting a size based on what it thinks it needs for a crash dump. Maybe it is sized big enough for a kernel memory dump and that is all, rather than a complete (1 x RAM) dump. If you set the pagefile to zero on either OS, it just means hobbling crash dumps. If you have a large pagefile, and you select the option to "clean pagefile at shutdown", that will seriously increase the shutdown time. You can select an option like that for security reasons (plaintext passwords paged out to pagefile?). Windows 8 actually has a total of three files, whereas the other OSes have two (pagefile/hiberfile). The third file on Windows 8 is a bit smaller. "Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8" http://www.thewindowsclub.com/hiberf...le-sys-windows "The Swapfile.sys ... is used to Suspend or Resume Metro or Modern Windows 8 apps." And the part of the KB2860880 article, near the bottom, where it says the fastest pagefile is selected by the OS, is bull****. I've tested that here, and older OSes continue to select the slower device. So when offered a faster device, there's no guarantee the OS will notice it is faster. It's almost like only certain types of devices get measured correctly. It doesn't seem to me that the OS uses a benchmark to decide what is "fast". Paul Thanks, Paul. I'll leave it set as it is then; ie. directly under the OS's control. This seems one major difference between 7 & 8. From which we can conclude that MS did a bit more than just camouflage 7 with a jazzier skin. Ed In the root of the C drive there are 3 hidden files; hiberfil.sys 4,978,552 KB pagefile.sys 1,048,576 KB swapfile.sys 262,144 KB Now, that makes a bit more sense to me. Ed |
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