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How-To Geek Forums » Windows Vista

where is my Free Memory ?

(25 posts)
  • Started 4 months ago by josh1
  • Latest reply from ScottW
  • Topic Viewed 757 times

josh1
Posts: 4

Thanks for the site, learnt so much, yet I seem to not be grasping the concept of Free Memory.

Vista HP - 186mhz - 2gb ram - 2gb usb Readyboost - SP2 - 32bit - 120gb HD - 500gb external HD (seagate free agent 7200speed) - ASUS X51RLseries Laptop.

Under Task Manager/Performance I only have 8mb of Free Memory.

I have disabled many unwanted services and features, and besides anti-virus have nothing running in background. Aero is off. Nothing suspect under Processes Tab. CPU is 5% when idle. CCleaner used, also cleaned all but last Sys Restore point, Hibernation file cleaned and disabled.

Virtual Memory: Selected Drive C (os) space available 49418mb. Custom size selected, Initial size 2348mb Maximum size 4095mb. Total paging size for all Drives Minimum 16mb, Recommended 2877mb, Currently Allocated 2348mb.

Although I seem to be able to run Apps/Games fine, 8mb Free Memory seem a little odd to me....

Should I have this all configured differently? Do I have concern to worry even ?

Posted 4 months ago #
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LH
LH
Posts: 7135

Hi josh. There is actually not really such a thing as free memory. Any memory that is left after loading the OS and apps, will be used for the background processes. So the less that is showing, the better. Vista does an excellent job of arranging it.

Posted 4 months ago #
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josh1
Posts: 4

Thanks LH , after reading your reply , I stopped and thought about it. Simple really. The more you feed the beast the happier it shall be ! DON`T PANIC :)

Posted 4 months ago #
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AST
AST
Posts: 125

What does Hibernation file cleaned and disabled mean in Josh1's topic mean?

Posted 4 months ago #
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whs
whs
Posts: 10183

This is a very common misconception. The 2.348 GB shown is NOT total physical memory usage. In fact, this isn't physical memory at all. This is actually the commit charge, memory that is private to a process and cannot be shared. At any point in time a portion of this will be in RAM, some in the pagefile, or in both. Program code, DLL's, the system cache, etc., can be shared between processes and is NOT included in this. Prefetched data would be a portion of what is labled "Cached".
According to your data, only 8MB of RAM is actually free. That means the rest of RAM is in use for one purpose or another. Vista is very good at finding a use for as much RAM as possible to improve performance.
It is very unfortunate but Task Manager displays can be quite misleading. Interpreting Task Manager displays can be quite difficult. Don't be too concerned by memory statistics in Task Manager, they probably don't mean what you think they do.
Here is some useful reading material: http://www.tomshardware.com/re.....532-2.html

Posted 4 months ago #
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ScottW
ScottW
Posts: 6609

josh1, hello. I'm running with only 12 MB "free" out of 2 GB:

This is typical and I have seen the Free number go down to 2 MB. Notice that the Physical Memory usage is 47%, which is typical on my system. As pointed out by LH and whs, these numbers are not very meaningful. What number would be good? Or bad? I don't know.

@AST, using the disk cleanup tool, you can delete the hibernation file, hiberfil.sys, which also disables hibernation. This frees up hard drive space but not system memory. If you have more questions about this, please start a new topic.

Posted 4 months ago #
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whs
whs
Posts: 10183

I just lookd - I have 4MB free, of 4GBs. At other times I saw 14 and 22MB. So as we said - the number does not really mean anything. I trust Vista to do a good memory management job.

Posted 4 months ago #
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Aleeve
Aleeve
Posts: 2782

Possibly unrelated, but you may want to try ReadyBoost to boost your memory?
(explained in more detail here)
Basically, if you have a large flash disk lying around wasting space (anything from the regular memory stick to camera cards and external drives even!)
Plug it in and set to ready boost, and use all the space you can/want to

If your computer has a lack of RAM, this should help, and even if you have 2-4gb, it will still help, even if you don't notice too much difference

Posted 4 months ago #
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whs
whs
Posts: 10183

Aleeve, I observed that Ready Boost does not really give you a lot of a performance push once you have 2GBs of RAM or more. But it can reduce your HDD activity. If you can manage to have enough RAM plus Ready Boost to match the size of your Page File, then there will be a lot less HDD activity - just some for writing the safety copies in case of change.

Posted 4 months ago #
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Aleeve
Aleeve
Posts: 2782

Thanks whs for the tip - edited my post accordingly

Posted 4 months ago #
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whs
whs
Posts: 10183

I'll do anything for a guest moderator - LOL.

Posted 4 months ago #
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LH
LH
Posts: 7135

Bribery will get you nowhere.

Posted 4 months ago #
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Aleeve
Aleeve
Posts: 2782

Do I detect a touch of sarcasm here? :D

Posted 4 months ago #
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LH
LH
Posts: 7135

Not at all. Don't worry.

Posted 4 months ago #
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Aleeve
Aleeve
Posts: 2782

Will do

@josh1 - hope this topic (apart from the last section) has been helpful?

Posted 4 months ago #
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ispalten
Posts: 328

The FREE MEMORY is just what has not been used before. Capture from my 8GB system :

See the RED circled areas and the highlighted text.

Although TM shows conflicting results, 2GB used in the graph but Physical says much less free, the HELP indicated it includes memory recently used. Since this is a 'swapping' system, the memory loads up sequentially as you load programs. It will mark no longer used memory as discardable, but it keeps track of it in case you need it again. Once you totally exhaust free memory, that discardable memory will be used and depending on how much memory is released and used by another process, your 'free' memory count will change. For 'speed', recently used memory is released last in case you'd need it again. Let us say you had IE running and closed it. All segments it used before would be cached, not discarded. Run another program, out of free memory, if IE was the only thing you ran, it would start discarding those segments of memory. Didn't run anything after closing IE, and started it again, no need to re-load memory, from the 'cache' it would enable those loaded segments.

The Widget on the right agrees with TM's graph on the FREE memory I have FWIW.

Irv S.

Posted 4 months ago #
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Agantfleabag
Posts: 112

humm..
sorry to go a bit off topic..
but i was curious about how my computer's performence looked.
The numbers are much different.

Posted 4 months ago #
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whs
whs
Posts: 10183

This question is hard to answer. There is no indication at which point each performance sot was taken and what was running at the time. The only obvious fact is that your RAM and Page File are a lot smaller than on the previous shot/system. Therefore is is likely that your system does not have the performance level of the previous system. But the CPU load is, as I said, a function of what is running at this moment and, of course, the muscle of the CPU.

Posted 4 months ago #
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Agantfleabag
Posts: 112

Hum..
Yeah i was rendering a video at the time so the CPU was a bit high.
Curently right now..
my CPU is at 90%-100% O_0

Posted 4 months ago #
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josh1
Posts: 4

Thanks for all posts my understanding of this topic is much clearer :)

Have been watching Taskmanager after using a Ram Optimizer....

I think they might be a gimmick more than anything else !

Posted 4 months ago #
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