What is your 7-Zip Speed on SSD vs Hard Drive

[Revolution 11]

I have a Seagate 2 TB hard drive (don't remember exactly which model) and Win 7 64-bit. The CPU is a i5-4670K at stock speed with 8 GB of RAM.

When I uncompress a 2 GB rar file, the speed is about 70 to 91 MB per second. What kind of speeds do you guys see on your PCs? How does SSDs perform with 7-zip.

I am not looking for benchmarks per say but a general feel of how storage affects 7-zip performance and which drive performs the best generally speaking.

 

[gbeirn]

Find me a .7z file to download and uncompress and I'll try it on my Intel X-25M

 

[Elixer]

You can make your own 7zip file.. just 7zip up a bunch of other files...

OP's question is odd though, they are decompressing a rar file, not 7zip...but, anyway, there are lots of factors on a HD that can make 7zip goes slower... heck, if you are doing other things with the CPU, that can also make it go slower.

http://www.7-cpu.com/ has benchmarks, as well as this site... http://www.anandtech.com/bench/Product/102?vs=146 and http://www.techpowerup.com/forums/threads/7-zip-benchmark-compilation.175418/

 

[Rakehellion]

You're probably more CPU limited than anything.

 

[ultimatebob]

Yeah, I want that 7Zip file to test. I'll bet that my shiny new Macbook Pro with an SSD would will uncompress it lickity split.

 

[Revolution 11]

The file that I used was a folder full of family photos. So I don't think I will be sharing that file.

But I went and found a test file at the site below. I made 10 copies of the full testset archive and compressed them into a new archive, let's call it Desktop.7z. When I went to extract this Desktop.7z, my speed briefly reached 136 MB/s before finishing. The operation was really fast, I had to repeat it 3 times before I could see the speed for a instant.

I don't know any longer files to test this on so you guys can offer a free, legal test file if you have one.

http://www.maximumcompression.com/data/files/
(pick the 10 testfile archive at the bottom)

 

[yottabit]

It really depends on the compression ratio I think whether you'll be CPU bound or not

Pretty sure I've extracted lightly compressed files (around 8 GB) at around 3-500 MB/s on my work PC with a modern SSD... but it's basically like doing a file copy at that point. Once it's heavily compressed/CPU dependent it will only go down from there.

Definitely if you are extracting large amounts of small files you should see a huge benefit to SSD over an equivalent hard disk RAID array for instance. Huge contiguous chunks of data not so much

Lots of variables