A RAM disk (or RAM drive) is a block of RAM that a computer is using as though it were a disk drive.

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How can I check which RAM replacement can I use in my laptop?

I've a Nanya (NT2GT64U8HD0BN-AD) 2GB DDR2 SO-DIMM PC2-6400S, 200-pin, Notebook RAM I would like to use this RAM in my old laptop Samsung NC-10 I know that normally is upgraded with PC5300 667MHz ...
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52 views

Windows 7 Paging file apparently not being used

I'm running Windows 7 Home Premium 32bit on a mobo with 24GB RAM. Of those 24GB, 20GB are assigned as a RAMDISK via ASRock XFastRAM. This RAMDISK has the drive letter X assigned to it. On X:\ I'm ...
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31 views

How to chroot into memory disk so that hard disk can be unmounted?

What I want to achieve is to be able to backup my hard disk over ssh like the following without the need to boot from a live CD / rescue media: dd if=/dev/sda | gzip -1 - | ssh user@hostname dd ...
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2answers
151 views

RAMDisk faster than SSD? [closed]

The answer seems to be obvious, but I've been going back & forth with ASUS and Crucial support on this and have been getting differing opinions. Thought I'd bring it to Stack for a solid answer. ...
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1answer
200 views

What happen if we reduce the size of hiberfil.sys

I today discovered that we can set the size of the hiberfil.sys using powercfg -H -size 100% command line tool. Ignoring the hard space you will get, what else will change if we set it to powercfg -H ...
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114 views

Are there issue using different sized RAM's

I have a 1*4GB RAM installed in my dell laptop. I am going to purchase 1*8GB RAM. So, my question is if the combination of one 4GB and one 8GB RAM, will both work or not? I am confused as I have never ...
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0answers
54 views

Why do some programs can't write to a ramdisk on Windows?

I've created a ram disk under windows using IMDisk. Most programs don't have problems writing to it. But for example, it isn't possible in Visual Studio (2013, currently) to create a project in a ram ...
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3answers
85 views

Win7 resets HKCU/Environment/Temp and TMP on login

I once had a fresh installation of Win7 on an SSD drive. Bearing in mind what you always hear about write cycles on these things, first thing I did was changing the TEMP/TMP variables of SYSTEM and my ...
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49 views

How to move vlc temp folder to ramdisk?

How can i move vlc temp folder to ramdisk or any other location to increase performance? Or does vlc already keep temp files in ram? thanks.
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45 views

What's windows' reaction if TEMP folder location is removed? [duplicate]

What I'd like to know is what appends if the said RamDisk or the USB SSD is removed? I'm used with moving the TEMP/TMP folder to a faster drive. I used to do it on a RamDisk with a script and now ...
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39 views

How to increase ramdisk size?

I have created a ramdisk of 8 MB using the following commands: mkfs -q /dev/ram1 8192 mkdir -p /ramcache mount /dev/ram1 /ramcache Now I want to increase the size of the ramdisk to 1.5 GB. How ...
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2answers
175 views

constantly writing files on SSD Win8 - RAMDISK versus disk cache?

I have an application that is constantly writing up to 8 x 15Mb files to disk (capturing video streams) with a new file being created each minute (and the oldest file deleted). The computer has a SSD ...
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1answer
161 views

Keeping HDD files in virtual memory without changing paths to files

I suppose my question is very specific, but I hope there might be solution already. I want to make few folders available in virtual memory but not changing the way they are accessed like ...
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1answer
171 views

Best practices of keeping Firefox profile on ramdisk

Having plenty of RAM, I'd like to use it to speed up the browser. Goals: Have profile and cache completely in memory, so HDD is not used much while browsing and fsyncs don't reach actual HDD or ...
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1answer
108 views

No performance increase on I/O intensive operation after symlink to ramdisk

We have a system that transforms a set of several thousand multi-MB files. After every step in the transform, it writes the intermediate file to disk. The concept is similar to a scratch disk. We ...
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4answers
989 views

Can SSD raid be faster than ramdisk?

So a typical ssd will have a read speed of 250 - 500 mb / second. And a ram will have about 10x than that. My question is: Can 4 ssds with raid-0 be faster than a single ram memory block for some ...
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2answers
201 views

Running a test database on RAM disk

Is it possible to create and start a Postgresql server as an unprivileged user with data directory owned by the same user? I want to run tests and create a test database for it, the data files being ...
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1answer
150 views

If I have an SSD, do I need AMD Ramdisk?

It seems like RAMDisk would cache a ton of stuff to my drive. With a standard HDD that's no problem, but for an SSD it raises the following risks: I have less space on my SSD Reading/writing to my ...
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169 views

Running vmdk in ramdisk

I created a FreeBSD VM running on VMWare ESX, with a SCSI Harddisk. I added a vmdk file to it and it booted perfectly fine. I then created a ramdisk on the VMWare ESX Host, and copied the .vmdk file ...
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44 views

Why the second time creating a ramdisk make /dev/rdisk2 instead of /dev/rdisk1?

I run the first time ever: diskutil erasevolume HFS+ ramdisk `hdiutil attach -nomount ram://8475854` It create the ramddisk at /dev/rdisk1. The computer power off, power on then I repeat the same ...
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40 views

Is there a way to shrink an ImDisk hard disk image?

I am using Imdisk to create a RamDisk on Windows. However i think i made it too big (or at least bigger than would be necessary). I feel it might perform better with a smaller image. Is there a way to ...
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1answer
108 views

RAM with Same Type but different Memory Clocks? [duplicate]

I have a 1 GB DDR2 667 MHz RAM installed into my system can i use 2 GB DDR2 800 MHz RAM along with the existing RAM is there any problem if i use both in different slots simultaneously or ...
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1answer
76 views

What are the quality metrics for RAM?

I have searched RAM and I found there are given some specification for the same capacity RAM, What are the difference and performance comparison between these? Like RAM1 General Brand ...
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68 views

Unable to allocate big amounts of memory in several programs

Since a few weeks I'm having weird issues in several RAM Disk utilities and in VMware. Most RAMDisk tools I tried throw me cryptic errors when creating RAM disks larger than 2-3GB and VMware doesn't ...
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86 views

How I should modify Windows's files in order to load all the system in the RAM during the boot?

I would to make a partition in my SSD and put in it the Windows's installation files. So, I would modify that files in order to tell at the CPU to copy all the partition (with all the files of Windows ...
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Why does RAM have to be volatile?

If computer RAM was to be non volatile like other persistent storages, then there would be no such thing as bootup time. Then why is it not feasible to have a non volatile ram module? Thank you.
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51 views

Using a set of triple channel and a set of double channel RAM at the same time

Scenario: You have a set of triple channel RAM (3 x 2GB), and a set of dual channel RAM (2 x 8GB). Both sets are clocked at 1600 MHz, and the motherboard and processor supports both triple and ...
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1answer
1k views

imDisk: Create physical memory drive (not virtual memory drive) from command-line

I'm using imDisk (http://www.ltr-data.se/opencode.html/#ImDisk) to create a virtual drive in Windows 7. I use it as temp drive for documents and will be created every time the computer/windows ...
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3answers
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Why not use SSD space as RAM?

I am new to the hardware side of things. I run a few machines which have 400GB+ SSD's and 32GB RAM. I have been thinking about going up to 64GB RAM, however, I was thinking, since SSD's are ...
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3answers
2k views

How to determine if a RAMDisk will be benificial and what to put on it?

How much RAM is necessary for a RAMDisk and how does one determine how much to allocate? Also what programs benefit from being put on a RAMDisk since the contents is lost when the machine is powered ...
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333 views

Will mounting a TrueCrypt container stored in a RAM disk be risky or have weak performance? [closed]

I'm getting a computer with 32 GB of memory and I'd like to allocate a good 8-16 GB to a RAM drive to boost performance of the files and programs that I open and close often. Simultaneously, I'm ...
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202 views

Restore data from a corrupted .img file

After having formatted my pc, i forgot to setup backup on my ramdisk. Ive been using dataram ramdisk wich stores the disk in a .img file on exit. However my pc crashed recently and now this .img is ...
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236 views

Reduce loadtime in games merging two folders across ramdisk and local disk

I've found a program to emulate a drive in my memory, RAMDrive. RAMDrive creates a drive (G:) on my computer, which allows me to have super fast read/write on that drive. Now I was thinking I could ...
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1answer
366 views

Auto resizing RAM drive for Windows?

Is there a method or a tool that would allow me to have a RAM disk with dynamic memory allocation? I want it to use RAM space only when space is actually used by files, I do not want an empty RAM ...
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310 views

Fancycache + HDD vs SSD

My girlfriend's three years old Sony Vaio laptop is getting really slow so I will perform a clean Win7 install on it in a couple of weeks. While at it, I'm considering getting her to upgrade a ...
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1k views

Windows cache and temp on RAM disk

I have 16 GB of memory and have just started to experiment with having a 1 GB RAMdisk. Currently, I only have the browser cache there, but I am thinking of moving the Windows7 cache and temp ...
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1answer
120 views

Create temporary disk in RAM?

The Fossil SCM currently doesn't support grepping through the repository. The only way to find code, is to check out the whole repository into a disk through "fossil deconstruct c:\temp_fossil", and ...
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430 views

RAM as SSD in OSX

Let's say I have a Mac with 128GB of RAM and no SSD. Could I somehow configure OSX to use the RAM as an SSD, i.e. as part of a Fusion Drive? Note: manually making a Fusion Drive is described here: ...
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1answer
2k views

Temp folder in ramdisk

I have a computer with windows 8 x64 and 16GB RAM. I bought a SSD, but still want to get the last bit of performance out of my computer ;) Does it make sense to put my temp folder into a ramdisk? ...
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165 views

In linux is it possible to extend a ramdisk with a physcial drive in a logical volume?

I do not like how tmpfs behaves with swap and will allow memory to be exhausted before using the swap on physical disk (yes swappiness can be adjusted but it's still affecting the rest of the OS by ...
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1answer
905 views

Does it protect SSD by putting Chrome/IE cache into ramdisk?

I have bought a SSD, alloc 1G memory for ramdisk to save temp file of Chrome/IE. Does it reduce the i/o of SSD and enlarge the lifetime of SSD?
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129 views

2-thread Perl program slower if run using a RAMdisk within a Virtualbox?

I run a perl script inside a Virtualbox (both the host and guest OS are Windows 7). The Virtualbox has been given 4 CPUs out of 8 (everything runs on a Intel i7) and 3 GB RAM (out of 8 available). ...
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1answer
135 views

Two RAM modules with different Frequencies

I have a Dell laptop which I bought 3 years ago. its a First gen i7 and its absolutely working fine. Since i use softwares like Photoshop Illustrator and Dreamweaver. I want to upgrade the RAM. I ...
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2answers
98 views

Where does mkinitcpio save its output?

When you run something like mkinitcpio -p linux, where is the resulting file saved?
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1answer
5k views

Is there any open-source RAMDisk software for Windows? [closed]

Question title is quite clear, no ? I found a bunch of "free for personnal use" ramdisk softwares on alternativesto but absolutely no open-source. So, do you know any one ?
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350 views

How to create ramdisk block device on Fedora 17?

In Fedora 16 /dev/ram* got removed and replaced with tmpfs. However tmpfs can't make block devices. Question How do I make a ramdisk block device in Fedora 17?
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How to create a RAM disk - Fedora 17

How do I create a true RAM disk? I don't want a virtual file system with loop devices, I would like a mountable filesystem that is stored completely in RAM. I am using Fedora 17, linux ...
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460 views

set up permanent ramdisk in ubuntu to not using ram when is the ramdisk empty

My laptop running Ubuntu 12.04 has 8GB RAM. I added following record to /etc/fstab tmpfs /media/ramdisk tmpfs defaults,noatime,mode=1777 0 0 What exactly does it mean? I have tested that I can ...
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2answers
1k views

Why using swap file over a SMB/NFS mounted filesystem is not possible in Linux?

I'd like to use another machine's unused RAM as swapspace for my primary Linux installation. I was just curious about performance of network ramdisks compared to local (slow) mechanical hard disks. ...
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1answer
5k views

Which filesystem to use for ramdisk?

I have 8 GB of RAM and would like to allocate about 1.5 GB for a ramdisk, mainly to use for Chrome and possibly some other things later. This guide says to format NTFS while this guide says to use ...