| Windows 7: Using heaps of ram |
09 Sep 2010
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#11 | | Windows 7 Ultimate The Southern Hinterlands |
What specific problems are you actually having?? | My System Specs |
| System Manufacturer/Model Number ASUSTeK Computer INC. CM5675 OS Windows 7 Ultimate CPU Core(TM) i5 CPU 650 @ 3.20GHz Motherboard ASUSTeK Computer INC. CM5675 Memory 6.00 GB Graphics Card Intel(R) HD Graphics Sound Card Intel HD integtrated Monitor(s) Displays Samsung 24' Screen Resolution 1900/1020 Hard Drives (1) INTEL SSD SA2M120G2GC ATA Device (2) ST31000528AS ATA Device Internet Speed 30mb |
09 Sep 2010
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#12 | | Vista, Windows7, Mint Mate, Zorin, Windows 8 Florida in winter, Black Forest/Germany |
If you are referring to the cache as "preallocated" RAM, then you are right. That cache (the dark blue in Process Monitor) is indeed always available. If one of your programs needs that RAM, the cache will be purged to the extent additional RAM is needed for an active program. | My System Specs | | System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207 Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000 |
09 Sep 2010
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#13 | | |

Quote: Originally Posted by win7jak Hey thanks everyone. I'm so pleased to hear from you all and to hear your comments and thoughts.
It still concerns me that the system will pre-allocate ram. Does that mean I dont have access to that ram other than for what "it" expects i will use it for?. I use the system for photography and video editing and I need heaps of ram for that. So whats the score about the pre allocation? Is it waiting to be used by any program that fires up or set aside for a program it expects to use it. What if the anticipated prog dosn't use the ram? Sorry to be a bore. It's a cache, pure and simple. If you have other apps that need it, Windows will get out of the way and let your apps use the RAM - however, it is actively trying to learn how you use your system, so that it can actually cache what you do use regularly, in that cache. It isn't something you will ever need to worry about - superfetch cache is just that, a cache. It will only use memory for superfetch if there are no other demands for that memory - if there ever is a demand for it, superfetch gets out of the way (assuming the demand isn't for data actually in the superfetch cache, which over time should be less and less common a scenario). | My System Specs | | System Manufacturer/Model Number HP Z400 workstation OS Windows Server 2008 R2 CPU Intel Xeon 3550 @3.06GHz Motherboard HP Memory 16GB DDR3 Graphics Card Nvidia Quadro 600 Sound Card Realtek ALC262 Monitor(s) Displays 2x Hanns-G HG281 Screen Resolution 1920x1200 Keyboard Microsoft Natural Ergonomic Keyboard 7000 Mouse Microsoft Intellimouse Explorer 3.0 PSU HP Case HP Hard Drives 1x Samsung 160GB SSD
2x WD 1TB (RAID1) |
09 Sep 2010
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#14 | | Windows 7 Ultimate x64 and Home Premium x64 |
Yes, a friend of mine told me about this and I wasn't really too alarmed. She informed me in the case of the x64 side, the OS would take literally half of it and cache it. I actually was more concerned with how much in general was actually used and considered the Cached part as a silly Virtual Ram Disk being used as Virtual memory (Yes, it sounds silly, but when you think about it... Using RAM as a virtual disk, then in turn, using it as Virtual Ram...) Could be a hack way of trying to make use of the unused RAM and improve memory usage performance as virtual ram by writing to the virtual ram disk. | My System Specs | | System Manufacturer/Model Number Alienware Area 51 Desktop and Dell Inspirion 17R (N7010) OS Windows 7 Ultimate x64 and Home Premium x64 CPU Intel i7 960 (3.2 GHz Quad Core) Motherboard Alienware Intel based X58 Memory 12 Gigs (Triple Channel) Graphics Card Alienware OEM nVidia GTX 560 Ti (1.25 Gig) Sound Card Creative Labs X-Fi Titanium Monitor(s) Displays Samsung PX2370 LED 23" Monitor Screen Resolution 1920x1080 Keyboard Logitech G510 Mouse Microsoft Trackball Explorer PSU 750 Watt Power Supply Case Alienware Area 51 Desktop Cooling Liquid Cooled Hard Drives 2 320 Gig SATA in Raid 1 Configuration (System/App)
1 1 Tera SATA (Games)
1 1 Tera SATA (Data/Music/Videos) Internet Speed Cable |
09 Sep 2010
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#15 | | Vista, Windows7, Mint Mate, Zorin, Windows 8 Florida in winter, Black Forest/Germany |
You are much better off to let Suprfetch manage it. And the amount of the cached RAM depends on how many program instances yo had opened previously - so it is completely dynamic. There is no set number. Here is an example of what I consider optimal - all RAM is being used: | My System Specs | | System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207 Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000 |
09 Sep 2010
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#16 | | Windows 7 x64 Home Premium |
As I understand the cached RAM is always available should the system need it and that the allocation is as transparent as if it were free.
~Maxx~
. | My System Specs | | System Manufacturer/Model Number HP HPE 270f OS Windows 7 x64 Home Premium CPU Intel Core i7 930 @ 2.8 Ghz Socket 1366 LGA Motherboard Pegatron Truckee v1.04E41 Memory 8 GB 1366 Mhz DDR3 (PC3-10700) RAM Graphics Card ATI Radeon 5770 1 GB DDR5 RAM Sound Card Realtech High Definition Monitor(s) Displays 32" Sony Bravia Screen Resolution 1366 X 768 Keyboard Logitech Illuminated Mouse Logitech MX Revolution Hard Drives Intel 25nm 120 GB Series 320 SSD HD Tune- 265 MBps Read/ 130 MBps Write
LaCie 1TB + 1TB RAID 0 eSATA Drive HD Tune- 160 MBps Read/ 90 MBps Write Internet Speed 36.4 Mbps Maximum on a 37 Mbps Motorola SB501 Modem |
09 Sep 2010
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#17 | | Windows 7 x64 Home Premium |

Quote: Originally Posted by whs Here is an example of what I consider optimal - all RAM is being used:  My Vista computer which has 3 GB of RAM does much the same thing as far as allocating RAM right down to the last few MB, but my Win 7 computer has 8 GB of RAM installed and since I'm running the same programs it caches about that same amount of RAM leaving 4-5 GB of RAM free.
~Maxx~ | My System Specs | | System Manufacturer/Model Number HP HPE 270f OS Windows 7 x64 Home Premium CPU Intel Core i7 930 @ 2.8 Ghz Socket 1366 LGA Motherboard Pegatron Truckee v1.04E41 Memory 8 GB 1366 Mhz DDR3 (PC3-10700) RAM Graphics Card ATI Radeon 5770 1 GB DDR5 RAM Sound Card Realtech High Definition Monitor(s) Displays 32" Sony Bravia Screen Resolution 1366 X 768 Keyboard Logitech Illuminated Mouse Logitech MX Revolution Hard Drives Intel 25nm 120 GB Series 320 SSD HD Tune- 265 MBps Read/ 130 MBps Write
LaCie 1TB + 1TB RAID 0 eSATA Drive HD Tune- 160 MBps Read/ 90 MBps Write Internet Speed 36.4 Mbps Maximum on a 37 Mbps Motorola SB501 Modem |
09 Sep 2010
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#18 | | Vista, Windows7, Mint Mate, Zorin, Windows 8 Florida in winter, Black Forest/Germany |
Maxxwire, What you observe is normal. If you always run the same "pattern", the cache will be similar. It will only vary and grow when you start a great variety of programs and change the LOR (location of reference) all the time.
Check the cache in the morning after system start and then again at night before shutdown - you will already see a considerable difference in cache size (provided you have done many different things during the day - surfing all day with the IE will not show that pattern). | My System Specs | | System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207 Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000 |
09 Sep 2010
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#19 | | Windows 7 x64 Home Premium |

Quote: Originally Posted by whs Check the cache in the morning after system start and then again at night before shutdown - you will already see a considerable difference in cache size (provided you have done many different things during the day - surfing all day with the IE will not show that pattern). I just took a screenshot and I'll check it again before I shut the computer down and note the difference. Please pardon me but I haven't used IE in years why will IE not show this pattern?
~Maxx~
. | My System Specs | | System Manufacturer/Model Number HP HPE 270f OS Windows 7 x64 Home Premium CPU Intel Core i7 930 @ 2.8 Ghz Socket 1366 LGA Motherboard Pegatron Truckee v1.04E41 Memory 8 GB 1366 Mhz DDR3 (PC3-10700) RAM Graphics Card ATI Radeon 5770 1 GB DDR5 RAM Sound Card Realtech High Definition Monitor(s) Displays 32" Sony Bravia Screen Resolution 1366 X 768 Keyboard Logitech Illuminated Mouse Logitech MX Revolution Hard Drives Intel 25nm 120 GB Series 320 SSD HD Tune- 265 MBps Read/ 130 MBps Write
LaCie 1TB + 1TB RAID 0 eSATA Drive HD Tune- 160 MBps Read/ 90 MBps Write Internet Speed 36.4 Mbps Maximum on a 37 Mbps Motorola SB501 Modem |
09 Sep 2010
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#20 | | Vista, Windows7, Mint Mate, Zorin, Windows 8 Florida in winter, Black Forest/Germany |

Quote: Originally Posted by Maxxwire 
Quote: Originally Posted by whs Check the cache in the morning after system start and then again at night before shutdown - you will already see a considerable difference in cache size (provided you have done many different things during the day - surfing all day with the IE will not show that pattern). I just took a screenshot and I'll check it again before I shut the computer down and note the difference. Please pardon me but I haven't used IE in years why will IE not show this pattern?
~Maxx~
.  I just took IE to stand for a browser - any browser. It was not supposed to be IE specific. | My System Specs | | System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207 Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000 Using heaps of ram problems? All times are GMT -5. The time now is 03:35 AM. | |