[Hardware Question] SSD just for the OS?

[Feuerfalke]

http://www.anandtech.com/show/2829/21

[Madfish]

Originally Posted by Feuerfalke

http://www.anandtech.com/show/2829/21

What would that tell us? Was it a question or a hint? Seeing your comment about the Warthog...

But then again, let me say something regarding the read and write speeds sequential written there. Yes, with an SSD you might get tripple read rate but that still doesn't mean a thing depending on what kind of user you are. I never wanted to say that SSD's aren't faster in sequential reads!

However, even with modern low-rpm 2TB drives like the Samsung F4 2TB for almost NO money at all (77€ for 2000Gb = 0,04€ per Gigabyte) you get 90+ mb/s read. Yeah, you get 261 with an Intel x25 or whatever (351€ for 160Gb = 2,1€ per Gigabyte). In other words you get 3x speed for 70x the price...
Or another approach: for one gigabyte of trippled SSD speed you get 52 gigabytes of mechanical drive space! So that's really something that's worth thinking about.

To each his own but let's do some gamer- /user-math.


The GPU has 1VRAM availabe in average (lower for some people, higher for others but let's just assume).
Most people have RAM at around 4GB, some a bit more but rarely a game uses more than 2GB (never seen that yet, even 1GB is rare).
So we can say for sure that the average is about 2GB data read as a max. Worst case is probably still about 3GB max. That means 22-33 seconds load time if things would depend on the drive.
Yes, you can get that down to about 8-11 seconds. But after the game has loaded things wouldn't make a difference anymore.

And to be precise this means we're back to benchmark numbers again. In the real world no game loads 3TB data after it's started. It'll load in smaller chunks and usually getting a considerable amount of the engine up and running in the background already for most modern titles. Even in shooters like Battlefield:BC2 or MoH you have low loading times because of that.


The same goes for applications. If you open and close them all the time, reboot your computer all the time and expect everything to pop up instantly then yes, a SSD is a good investment. But 64gb isn't enough for that!
On the other hand side, on my workstations I rarely close apps. I just open them, leave em running, hibernate the computer if necessary (0,5W standby). In other words: most of the stuff is in the RAM anyways. My pagefile get's either reduced to 0 or very low numbers or, if necessary, use a ramdisk/drive.

So yes, it's a user decision that has to be made individually. You can't just throw an SSD into a system that idles around all day long or only sees sequential read every now and then. Unless you don't care about the money and don't want to wait for a better pricepoint to jump on the SSD train. For gamers it's usually just not worth it. For simmers there are also better ways to spend money but that's another story...

[Aviar]

Personally, I would have 2 hard drives. I would put the OS on the bigger non-SSD drive. This would give you plenty of room for other games, storage, etc.

Then, I would install IL-2 on a small SSD. You would see a marked improvement in certain aspects of the game.

*Standard hard drives are so inexpensive these days and a single 60GB SSD would fill up so fast you would need another HD anyway. Heck, my IL-2 folder alone is around 25GB...and that's unmodded...

Aviar

[Feuerfalke]

I never wanted to say that SSD's aren't faster in sequential reads!

Who forced you to do so, then?

Most SSD's aren't that much faster than good S-ATA drives in sequential read.

The thing is:
Loading games and textures as you posted isn't sequential reading and even in that, the SSD is in the advantage in most cases. There is no game that uses a single 2GB file that is loaded as a whole into memory - that's utter nonsense and a perfectly artificial test. Especially for gaming it's random read access and here is, where the SSD can really triumph, because it simply has no physical disc to turn and no arm to swing. As a result the most important thing for loading multiple files especially for gaming is the reaction time.
SSDs usually have a reaction time of 0.1 - 0.2ms. The fastest HDD (VelociRaptor from WD) has a reaction time of 3.6ms.
That's achieved by 10,000 RPMs, a special cooling case and 37dB A.
(That's 2db above the level of noise allowed in Germany's towns during night-time!)

@Pagefile:
Try setting the PageFile to 0 in Vista/Win7. Or try to disable it and see what happens to the file.

@Space used for Vista/Win7:
I have run Vista over a year on a 25GB partition. No problem. I only installed windows on this partition, all working programs on different HDD. Works nice and BTW is recommended with most professional programs, as you can access both drive simultaneously. Most professional programs don't even install if you force them to work on the systems-drive for the same reason.
I currently have all programs stored on my System Drive. That's about 12 professional photo- and video-editing tools, webdesign-stuff, etc. Total size: 29GB.