Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.



Windows 7: Computer recognizes 8GB of ram, but only uses 30% of it?

19 Mar 2011   #11

Windows 7 Ultimate x64 SP1
 
 

some apps eg After Effects, Prem Pro, Cinema 4D will eat all the RAM you can throw at them.

snip here taken during a C4D render



Attached Images
 
My System SpecsSystem Spec
.

21 Mar 2011   #12

W7 X-64 RTM,SUSE 11.1, XP PRO SP3 as a VM, VMware ESXi
 
 

Hi there

Thse applications tend to "Bypass" the normal OS -- usually to avoid any overhead in using OS processes. They also interact directly with the main hardware too.

These are very specialized applications. However things like MS office and 90% of what most people tend to run on their machines with the exception of Virtual Machines the REAL RAM will be managed by the OS and you probably won't see it taking too much of it at all unless running LOADS of concurrent applications.

This is why even a 2GB RAM machine is often more than sufficient for the vast majority of "Normal" computer users.

Cheers
jimbo
My System SpecsSystem Spec
21 Mar 2011   #13

Windows 7 64 bit SP1
 
 

Quote   Quote: Originally Posted by GeneO View Post
A lot of photoshop operations write to its scratch disk no matter how much memory you have. For instance, if you convert a layer to a smart object it will write hundreds of MB to its scratch disk. Unless you have your scratch disk on an SSD with very fast writes, this takes 5 seconds, you can sit there and watch it! So I suspect something like that is happening. You can monitor the scratch disk for activity to see if the is the culprit.

Another example. I can write full speed to my scratch disk at about 100 MB/s. I have photoshop configured to use up to 5 of my 8 GB of memory. I just opened up a 10MP RAW image in PS CS5. That wrote about 100 MB to my scratch disk for about 1 second. I duplicated the layer. Another 100MB and 1 second to complete. I then smart sharpened the image. The scratch space jumped up 370 MB more or about 4 seconds to do the sharpening because of this. I am sure the sharpening itself takes no time, it is the writing to disk that does.

It is a real disappointment.

If I had the extra cash right now, I would get one of the new Intel 510 SSD explicitly for use as cache for Photoshop scratch, ACR and Bridge Cache, and Browser Cache. Maybe I would make it my system disk. But you need something that can do much better than HDD write speeds (>> 100MB/s) to see the difference. Many SSDs do not have write speeds that are any better than Hard disk drives. the Intel 510 claim to.

I should add how this relates to memory (I was addressing your "lag" above). I think Photoshop decides something is too big for RAM and writes it to its scratch disk - using les memory in the process/
My System SpecsSystem Spec
.


21 Mar 2011   #14

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

I'd have a look at this just to make sure nothing is amiss:

http://www.sevenforums.com/tutorials...ndows-7-a.html
My System SpecsSystem Spec
Reply

 Computer recognizes 8GB of ram, but only uses 30% of it?





Thread Tools



Similar help and support threads for2: Computer recognizes 8GB of ram, but only uses 30% of it?
Thread Forum
PC not recognizes any USB pendrive Hardware & Devices
Computer Recognizes Headphones and Mic, but neither work Sound & Audio
Why a new installation recognizes my name? Installation & Setup
Windows 7 x64 only recognizes 6 out of 8 gb ram Hardware & Devices
Win 7 recognizes 8GBs of RAM General Discussion
ATI CCC only recognizes 1 Graphics Card Graphic Cards
BIOS Recognizes disk, W7 does not. Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 05:10 AM.
Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App
  

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33