How to speed up extraction time for compressed rar files

[khmer]

Hi

I would like to know if there is anything i can do with my PC setup to speed up extraction time for compressed rar/zip files.

I have two 2TB Samsung 5400 rpm drives one of them has a 500 gb partition (C) for the OS (Windows 7 64 bits) and (F) for storage, the other drive (E) is 2TB of storage, both AHCI enabled.

Memory is kingston 4gb DDR3 at 1600hz dual channel

Cristal Disk Mark rates C/F and E drives at about 100MB/s read and write speeds.

If a copy a file from C/F to E the speed I get is 60MB/s which I am ok with it.

However, if I unpack anything from C/F to E the maximum speed I get is 10 MB/s

My motherboard is an ASUS M4A785 TD V EVO with sata II ports.

CPU is AMD Phenom II 4 cores 2.5hz, 65 watts

I have tried winwar and 7zip, both with similar results.

The files I need to decompress range from 10 gb to 50 gb so uncompressing any of them takes from 30 minutes to 1.5 hours

Given de Cristal Disk Mark rate of 100MB/s and the copying speed of 60MB/s, uncompressing at 10MB/s doesn't really sounds good to me, any ideas?

Thank you

 

[das_stig]

C to F mean one disk is reading and writing, while C/F to E means one is reading and one is writing, which is obviously quicker.

10GB-50GB are large files and to get any better performance you will need more pure GHz from the CPU, as the likes of Winrar are already capable of using multi-core cpu's.

Plus 5400rpm drives are not as efficient as faster drives, as they tend to have smaller caches.

 

[raunak62]

You can't reduce your extraction time by much. Extraction speed depends on the compression ratio of the file, your processor and your hard disk. Prioritizing WinRar to high or real time while minimizing background tasks can speed extraction up a bit, though not enough to be noticeable.