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How to use all CPU power to archive with 7zip?

post #1 of 6
Thread Starter 
OK, I want to archive a large amount of data with 7zip, but it takes very long and seems like it doesn't even use CPU power at full throttle. How can I use full power of CPU for such tasks?

Look at the screenshots I made, with the following 7zip settings i'm getting like 21-30% of CPU usage:

Phathfinder
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post #2 of 6
LZMA2 should branch out for all the threads on your CPU, it pegs my 4770K across all cores on the Linux version..

Are you compressing onto the same disk? What kind of performance does your laptop drive have?
It looks like E: was topped out at 100% for a while..

Edit: I just saw the SSD in your sig rig, what kind of files are you compressing?
post #3 of 6
Yea i too think its more a HDD bottleneck then CPU bottleneck
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post #4 of 6
Thread Starter 
Yes i am compressing on to the same disk, should i choose for destination another disk?
This is a 3tb WD Green drive that is used via ESata port as an external drive
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post #5 of 6
I agree with the disk bottleneck theory -- look at the graph above, you can clearly see when the compression was running that Drive E: was pegged at 100% while the CPU was bouncing around up to about 30-35%.

7-zip will consume 80-90% CPU on my 3930K if I compress content from my 500 MB/sec SSD onto another SSD.

Greg
post #6 of 6
Thread Starter 
Thanks for explaining. Will try to do that with SSDs involved
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