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Ram disk drive

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a b V Motherboard
July 1, 2012 12:45:23 AM

i have a question .. how many of you have tried out or used a ram disk drive .. and why are they not really all that prevolent here .. I did some testing my self and found that i was getting read and write speeds on part with 8 sata 3 ssds in raid 0 .. i also did a test using a 4gb ram disk drive .. for comparrison and found that my wild fire ssd took on order of around 5 mins and then my standard hhd took almost 7 but when i used the ram disk it took 2mins 30 seconds do do the same work load 1gb file samuri harrem convert from vts to mp4 .. using hand break which was also installed on the ram disk image.. stupid fast so why dont people talk about this much.?

More about : ram disk drive

July 1, 2012 12:52:32 AM

goodguy713 said:
i have a question .. how many of you have tried out or used a ram disk drive .. and why are they not really all that prevolent here .. I did some testing my self and found that i was getting read and write speeds on part with 8 sata 3 ssds in raid 0 .. i also did a test using a 4gb ram disk drive .. for comparrison and found that my wild fire ssd took on order of around 5 mins and then my standard hhd took almost 7 but when i used the ram disk it took 2mins 30 seconds do do the same work load 1gb file samuri harrem convert from vts to mp4 .. using hand break which was also installed on the ram disk image.. stupid fast so why dont people talk about this much.?



ummm i think it might be because when you shut off your computer YOU LOOSE EVERYTHING.
a b V Motherboard
July 1, 2012 12:54:04 AM

The issue is that most RAM configurations are not large enough to make RAM Drive useful. I run 16 GB RAM and I use RAM Drive but 4 GB RAM set ups do not leave much room to move. Also in the event that power fails you will lose any data in the RAM Drive. You can save an image of the RAM Drive at shut down but big RAM Drive files can take a while to load up at start up. If you have a 6 GB RAM Drive then 6 GB of data has to be written to RAM every boot up.

RAM Drive has some great specialised uses but for most users it is not that viable.
Related resources
a b V Motherboard
July 1, 2012 12:58:08 AM

well i was thinking about doing a 3930k build with 64 gigs of ram .. and having a ram drive partition .. for stuff like bf3 and a few other programs i use .. having the drive load from an ssd drive isnt so bad mechanical well id understand .. but thats a minor compared to the speed benefit.. do you think there would be any benefit to installing games on a ram drive?
a b V Motherboard
July 1, 2012 1:00:23 AM

i also have 16GB of ram running a 1090t .. and looking back at toms benchmarks if you used a ram drive it would basically negate any performance benefit you might get from upgrading the cpu.. just my observation
a c 328 V Motherboard
July 1, 2012 1:02:17 AM

cbrunnem said:
ummm i think it might be because when you shut off your computer YOU LOOSE EVERYTHING.

Wrong. U can set it the way u want it.
a c 328 V Motherboard
July 1, 2012 1:06:53 AM

What is RAMDisk?

RAMDisk is a program that takes a portion of your system memory and uses it as a disk drive.

Sounds simple? In concept yes, but in practice there are many tricky issues to deal with when operating a RAMDisk in Windows. We continue to work hard to make RAMDisk as easy as possible to use, but there is always room for improvement. We provide updates regularly to improve features and address customer requests. Please be sure to READ THE INSTRUCTIONS (this document) before you try the various RAMDisk settings.

How does it work?

RAMDisk is a kernel-level driver that presents a standard disk drive to the OS, however, it stores and retrieves data from the system RAM on your motherboard instead of an actual, physical disk. Along with the Kernel Driver is a GUI that talks to the driver and allows the user to set various options as well as start and stop the Driver (create or delete a RAMDisk).

The Driver has been written to WDM standards and creates a low-level disk object that Windows Device Manager and Disk Management are able to "see" and manage. You can partition, format, mount a volume, and assign multiple drive letters to RAMDisk (but only if you would know how to do those things with a regular disk, RAMDisk does not do it for you).

Upon successful Start of the RAMDisk, a kernel level driver (RAMDisk.sys) is loaded into the Windows/System32/drivers folder. This driver will be available to Windows each time RAMDisk starts. It is removed when RAMDisk is stopped.

What is the benefit?

In a word: SPEED!

Most users use RAMDisk to speed up applications like:
Browsers cache
RAM Cache for the HDD or SSD
Photoshop (scratch disk)
Databases
Internet Explorer cache for faster web surfing
Audio and Video editing
CAD programs
Software compilers
Speeding up CD duplication
Games
SETI processing
TEMP files
Swap space
Web server cache
Custom applications with high I/O, high bandwidth, or high security requirements

When I transfer 2GB file from the RAMdisc to my 2TB HDD it starts high around 1.2GB/s the transfer speed.

Than it goes down of course, but it takes -> one, two done!
a b V Motherboard
July 1, 2012 1:09:47 AM

yea its just a curious question .. i was rather bored and remembered talking to an older guy about ram drives .. and did a bit of googling and found some old school stuff toms did a review on with ddr2 ram and thought well heck they have ddr3 at 2400mhz now i was just curious on what kind of speeds one could get .. i mean toms already seemed to prove that 1333 mhz ram is usually good enough but and minimal performance gains there on out .. but what about ram disk?
a b V Motherboard
July 1, 2012 1:12:27 AM

thank you moderator.. at least some one knows there stuff.. :p 
a c 328 V Motherboard
July 1, 2012 1:37:24 AM

I think people tried it, and couple of years back it was crashing a lot, if it was set wrong.

So it probably deterred many users from keeping trying. Now it works fine on any W7.

There is probably 6 users I know on the forum that are using the drive.

I work with music and video and do my photography editing on RAMdisc.

16GB RAM is good to have, so user can use 8GB for RAM disc and have plenty for the system.

Once u try, u don't go back, if u don't have to.

a b V Motherboard
July 1, 2012 2:33:22 AM

yea i know what you mean .. makes the lga 2011 set ups much more beneficial .. the wheels are turning you guys should look into possible benches if possible im sure it would make a great article. thanks for your time though .. yea with my set up doing an atto i was getting over 3GB sec .. i was like that cant be right until i did the video file conversion and was like??? OMG never again.. haha
a c 328 V Motherboard
July 1, 2012 2:46:22 AM

Way faster than any drive and it cost next to nothing. Free to 4GB RAMdisc to start with.

a b V Motherboard
July 1, 2012 2:49:55 AM

what kind of ram was that ?
a c 145 V Motherboard
July 1, 2012 2:59:04 AM

Windows automatically uses spare physical memory as a file system cache. You can see this in the Performance tab of Task Manager. It's nice to see on paper but Windows already does most of that work for you, you just don't see it. The biggest drawback is that the space taken up by the RAMDisk is committed to the RAMDisk application, it is no longer available to be committed to other applications like the Windows file system cache is.
a b V Motherboard
July 1, 2012 3:10:51 AM



yea this is what i came up with i have 4x4GB corsair xms 3 .. now i used ASSD benchmark for this though.. pretty sick omg 11000 MB sec thats like I mean it would take 8 ssd drives to get this performance yet your set up is like 3 times more powerful.. sweet man
a c 328 V Motherboard
July 1, 2012 3:11:18 AM

Pinhedd said:
Windows automatically uses spare physical memory as a file system cache. You can see this in the Performance tab of Task Manager. It's nice to see on paper but Windows already does most of that work for you, you just don't see it. The biggest drawback is that the space taken up by the RAMDisk is committed to the RAMDisk application, it is no longer available to be committed to other applications like the Windows file system cache is.

RAM disc is something different and u know that.

Run an application from RAMdisc or use the VM or scratch disk for media encoding.

There u will see the real difference. But only if u will try it yourself..

a c 328 V Motherboard
July 1, 2012 3:16:16 AM

Too bad that the rest of the HW is slow to match the performance of the RAMdisc : )
a b V Motherboard
July 1, 2012 3:25:44 AM



pretty much got the same results .. the newer intels have quad channel right? maybe that is giving it a performance benefit .. my build is a 1090t with 16 GB of corsair xms 3 and a gigabyte ud5 890fx mother board i dont think the graphics setup would have any effect plus my ram is not overclocked .. so
a b V Motherboard
July 1, 2012 3:32:19 AM

Im wondering if i changed the timing up on my ram weather it would have a significant impact or not .. but then again im guessing its the xmp profile that intel takes advantage of.. seeing as how thats dual channel.. ha ha considering i built this back in 2010 ... im surprised I have to admit im pretty much done with AMD at this point.. more then likely go with lga 2011 build next .. here in the next few months.
a c 328 V Motherboard
July 1, 2012 3:34:31 AM

The 2011 use quad channel.

My RAM is running @ 16384MHz and the CPU is @ 4.6GHz or so.

What is the speed of your RAM? 1333MHz?

Try to run 5 runs @ 100MB
a c 328 V Motherboard
July 1, 2012 3:40:14 AM

goodguy713 said:
Im wondering if i changed the timing up on my ram weather it would have a significant impact or not .. but then again im guessing its the xmp profile that intel takes advantage of.. seeing as how thats dual channel.. ha ha considering i built this back in 2010 ... im surprised I have to admit im pretty much done with AMD at this point.. more then likely go with lga 2011 build next .. here in the next few months.

2011 would be for u significant jump in performance, from what u got now.

I upgraded from 6750 C2D 775 socket to 2600K, and man, that was way more than one could wish for.

Going from encoding 1080p HD in 28 hrs to 3.5hrs was significant for me.

And the 2011 six core CPU(even the ~$500) will knock the sock off the 2600K CPU.

The processing power is unmatched,

only dual xeon set up will knock that the 2011 down.
a b V Motherboard
July 1, 2012 3:44:47 AM



pretty much the same picture im going to reboot and tighten my timings some ..
a b V Motherboard
July 1, 2012 4:01:31 AM



Little better improvement @ cass 8 timings im a ninja when it comes to ram .. normally its cass 10 ..

guess the timings have a significant impact on the ram disk as well .. also this is in unganged mode i havent tried it in ganged yet ..
a c 328 V Motherboard
July 1, 2012 4:08:15 AM

Benchmarks reflect every little change u make.

Whats your RAM?
Can u post link?
July 1, 2012 4:18:46 AM

Hey guys. Irrelevant to the original topic of the thread, I think this is helpful for anyone on OS X who is trying to setup a RAMdisk.
Copy and paste the following into terminal:

diskutil erasevolume HFS+ "ramdisk" `hdiutil attach -nomount ram://1165430`

The long number at the end of the command is the amount of RAM allocating. It is the amount of ram in MB multiplied by 2048. If you want 2048 mb, your number would be 2048*2048=4194304
a b V Motherboard
July 1, 2012 4:28:40 AM

zulutech said:
Hey guys. Irrelevant to the original topic of the thread, I think this is helpful for anyone on OS X who is trying to setup a RAMdisk.
Copy and paste the following into terminal:

diskutil erasevolume HFS+ "ramdisk" `hdiutil attach -nomount ram://1165430`

The long number at the end of the command is the amount of RAM allocating. It is the amount of ram in MB multiplied by 2048. If you want 2048 mb, your number would be 2048*2048=4194304




yea that would be helpful i know quite a few people who have macs as well.. Im one of them.. there's also some software floating around out there that you can use as well ..
a c 328 V Motherboard
July 1, 2012 4:29:05 AM

U can OC that one to 1600MHz with no problem.

It is good RAM.

I like the Corsair, never had any problem with them.
a b V Motherboard
July 1, 2012 4:54:25 AM



ehh.. yea i have tried to oc the one i have to 1600 it wont post .. i also have a pair of 1600mhz ram but i opted to use the 1333 because i had 16 GB .. however i thought i put my timings up ..

CAS# 8T
RAS 8T
Row precharge 8T
and the last one is 20T

Also this is now in ganged mode so reads got a boost but writes took a bit of a hit. but comparing the 2 id say ganged mode is better.
July 1, 2012 5:25:08 AM

I'm curious as to how fast one can get the read/write speeds to go here. Nikorr, what RAM do you use? Earlier you said that your RAM was running at 16k Mhz. I'm just going to assume that that is a typo and that you really meant that you were running 16gb of RAM.
Additionally, the OC ability of the 2600k blows away any 2011 6 core CPU on the market, I think the 2600k or the new Sandy Bridge CPUs are really the most cost effective ATM.
a b V Motherboard
July 1, 2012 5:50:32 AM

goodguy713 said:
]http://img521.imageshack.us/img521/4136/crystaldisk1333mhzgange.png

ehh.. yea i have tried to oc the one i have to 1600 it wont post .. i also have a pair of 1600mhz ram but i opted to use the 1333 because i had 16 GB .. however i thought i put my timings up ..

CAS# 8T
RAS 8T
Row precharge 8T
and the last one is 20T

Also this is now in ganged mode so reads got a boost but writes took a bit of a hit. but comparing the 2 id say ganged mode is better.


zulutech said:
I'm curious as to how fast one can get the read/write speeds to go here. Nikorr, what RAM do you use? Earlier you said that your RAM was running at 16k Mhz. I'm just going to assume that that is a typo and that you really meant that you were running 16gb of RAM.
Additionally, the OC ability of the 2600k blows away any 2011 6 core CPU on the market, I think the 2600k or the new Sandy Bridge CPUs are really the most cost effective ATM.


his ram is rated at 1600Mhz .. and He has 16 GB of ram .. if i remember correctly he has the ram slightly overclocked .. all ram has an independent clock cycle from the processor .. there tied but at different speeds .. like i have 1333 mhz ram.. i dont know if cpu clock rate has any impact on the data rate of a ram drive.. my benches i posted were based off of a 1090t running at 3.6GHZ .. the faster your cpu can access data the better the performance you will have .. using a ram disk super low access times .. just look at my benches you do realize to get that kind of performance from an ssd drive you would need best case senario at least 6 high end ssd drives to get the speed needed the limitation here is how much system ram your motherboard / processor can support .. with x79 your looking at 64GBs of ram at @ 2400mhz topped out your looking at some serious speed.. with a set up like that you could install bf3 on a ram disk and loads would be extremely fast .. i took a 1gb video file from a dvd or vts file and put it on the ram disk to convert it to .mp4 and converted it in 2:28 seconds with my patriot wildfire ssd drive it took me 5mins and with hard drive almost 13 mins using handbreak on high profile settings .. just saying i doubt your computer could do that .. with out using something like this .. it makes a huge difference .. and at a significantly cheaper price .. at the very minimum your looking at at least 600 dollars vs 2 32Gb kits.. of ram
a c 328 V Motherboard
July 1, 2012 5:57:28 AM

zulutech said:
I'm curious as to how fast one can get the read/write speeds to go here. Nikorr, what RAM do you use? Earlier you said that your RAM was running at 16k Mhz. I'm just going to assume that that is a typo and that you really meant that you were running 16gb of RAM.
Additionally, the OC ability of the 2600k blows away any 2011 6 core CPU on the market, I think the 2600k or the new Sandy Bridge CPUs are really the most cost effective ATM.

Cost effective, yes (the 3770K is close too).

But not in the performance.

Even the new 3770K beats the 2600K in the end by maybe ~13%.

2011 beats it by maybe ~20% or even little more in encoding power.

=============

I used 16GB (4x4) Vengeance @ 1600MHz
a c 328 V Motherboard
July 1, 2012 5:59:16 AM

Yea, my RAM is more than 1600MHz, because I am using BCLK @ 103.5 vs 100.0
a c 328 V Motherboard
July 1, 2012 6:27:34 AM

Red one is new with extra 50MHz : )

July 1, 2012 7:05:38 AM

Ramdisks are very useful for reducing lag in Minecraft.
July 1, 2012 7:39:41 AM

I ran the same test with RAM operating at 2100Mhz and received a slower sequential read/write.

I'll post pics tomorrow... when Its not 12:39 AM.
Happy Canada Day!
a c 145 V Motherboard
July 1, 2012 7:46:21 AM

zulutech said:
I ran the same test with RAM operating at 2100Mhz and received a slower sequential read/write.

I'll post pics tomorrow... when Its not 12:39 AM.
Happy Canada Day!


RAMDisk doesn't seem to play very well with some configurations.
a b V Motherboard
July 1, 2012 2:02:43 PM

ok so i did a few more tests and ive pretty much came to the conclusion that performance is tied to the actual ram frequency's more so then cpu clock rate .. my current system is a 1090t @4GHZ i went the ram for this test so i dropped it down to 1066 and then increased the clock multiplier to 250 which gave me 4 ghz just running for this test .. i came up with this

so im thinking this is pretty much the limit of my ram setup with my system .. now i havent tested with 1600 mhz or anything like that but still this is pretty impressive. also my FSB is set to 2250MHZ much higher then that and my system becomes unstable .. so just thought i would mention im guessing its a limitation on the memory controller ?
a c 328 V Motherboard
July 1, 2012 2:05:06 PM

Maybe, but the CPU role is there too.
a b V Motherboard
July 1, 2012 2:32:00 PM

Yea i think your right about that .. any other modifications dont really make much of a return in terms of performance. i pretty much got lucky when i got my 1090t some wont even post to 4Ghz ive had mine up to 4.2 but runs way too hot .. considering im using an h50 considering it was my first build my next one will be a little more performance oriented .. thinking h100 next time around with 3930.. and minimum 32gb kit .. considering 90 percent of programs i use do not use more then 6gb of ram it would be cool to have a 20gb ramdisk on hand..
a c 715 V Motherboard
July 1, 2012 4:15:50 PM

Hmm...Interesting results, I do not run the freebie (RamDisc) and instead run and use RamDisk 11 Plus - http://www.superspeed.com/desktop/ramdisk.php/ Typically it's 8GB and sometimes 16GB depending on what I'm doing.

The only time I've seen RamDisk 11 Plus obtain SEQ >9K is on the LGA 2011 and Z77 running DDR3-2800 G.SKILL Trident - http://www.youtube.com/watch?v=HFtJeVcFI2I&feature=play... The numbers that count on CDM are the 4K / 4K QD32 which are a closer measure to actual data. So my assumption is the 'RAM Drive of @Nikorr is different than RamDisk 11 Plus?!

RamDisk 11 Plus X79 i7-3930K (Stock vs OC 4.8GHz) 8x4GB DDR3L-1600 @ 1.35v:
a b V Motherboard
July 1, 2012 5:26:55 PM

those are some pretty impressive numbers .. i wonder why nikkors is so different?

the only thing i notice any different is that his image is at 90 percent capacity.. i wonder if that has any effect?
a c 715 V Motherboard
July 1, 2012 5:31:49 PM

My assumption is different RAM Disk applications...if you see AIDA64 look at the max tested R/W and copy.
July 1, 2012 7:04:56 PM

I like this technology. I can see so many applications.
July 1, 2012 7:16:31 PM

What ramdisk software are you guys using? I remember using something on my old EeePC (the 9inch one with the small flash storage) for temp files and to limit the amount of writes.. but I can't remember what I used.
a b V Motherboard
July 1, 2012 8:09:10 PM

blader15sk8 said:
What ramdisk software are you guys using? I remember using something on my old EeePC (the 9inch one with the small flash storage) for temp files and to limit the amount of writes.. but I can't remember what I used.


actually this software turns an adjustable amount of system ram into storage space like a standard hard drive disk .. system ram is many times faster then pretty much any drive out there including ssd drives at least at our level .. the limitation is you have to have enough system ram to be able to make use of it .. i have 16gb of ram and can set at least 8 of it to a ram drive if i wanted to .. if you look at the benches we posted you get an idea of how fast it is.. i didnt use the ram drive software he posted a link to i used this.. http://memory.dataram.com/products-and-services/softwar...
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