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Shasoosh

slow extraction in winrar

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when i extract a big file (1 g or more) i've noticed that winrar only uses 8-12% of my cpu, is there a way to force him to use more cpu and by so it will finish more quickly? (low priority is unticked in options)

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Maybe your hard drive is too slow? Try extracting from one hard drive to the other if you have two.

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WD 320GB 16MB SATA2 7200 RPM - WD3200AAKS - too slow?

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WD 320GB 16MB SATA2 7200 RPM - WD3200AAKS - too slow?

Hm...that's strange. I know it's a long shot - have you tried the latest version?

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on with the latest.. on other systems winrar takes 100 cpu?

untitledwi5.jpg

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Yeah. It utilises 100% of my CPU.

Although I think that may be because my PC is about 7 years old

When you say slow, what do you benchmark it against? How does it perform when extracting a file HALF the size?

Could still be a HD speed limitation. Can't make it spin faster than what it's designed to :)

Or it could be a Vista thing, who knows? You dual-booting?

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You could right click on the process and give it higher priority. That should improve the performance. Also if you are extracting 1gb files, your HD is probably quite fragmented.

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i dont have xp here... its not slow as in "dead slow", maybe its the way that winrar programed

i've tried it gnuman, it goes up to 23% and its a bit faster but still not using the cpu full capacity

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I'm bumping this topic with a new pic hopefully to get some answers.

maybe a winrar alternative?

6jg470g.jpg

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For an alternative, nothing to lose by trying 7-Zip

http://www.7-zip.org/

Try 7-Zip 4.56 beta (2007-10-24)

Even though it says Beta, it's still very stable; has been for me anyway.

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7-zip is good. However, I actually like jZip (uses 7-zip compression tech, etc, and can open all the same files) because it seems more like a release product. I dunno, I just don't like the feel of 7-zip that much...

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I'm new here but this subject is why I joined... I have a problem that is similar in that the amount of CPU used to extract files will change and I'm not sure why so maybe someone here can help me:)

My problem is that I can extract a file (using winrar 3.7) in 4 seconds flat. Meaning when the little box pops up for winRAR when the counter hits 4 seconds its done (on a 700MB file)... but sometimes it will take 30-40 seconds for a 700MB file and for a long time i've just chalked it up to different compressions or me doing other stuff on the hard drive. But today i found something that if I take an archive and try to extract it and it takes 30-40 seconds it only uses about 6-8% CPU in processs explorer. HOWEVER. If I delete one file of hte archive and repair it with quickpar and then extract the same archive it will extract in 4 seconds like the rest of them and the CPU usage is at 25% I hope that makes sense to someone...

Basically does anyone know what would cause a quickpar repair to change the speed of the extraction or CPU usage of winrar?

Thanks.

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huge bump, i know, but i was researching this problem myself.

I upgraded winrar to the newest 64bit native BETA.

That brought it up to about 40% and i did a benchmark and a couple calculation, and the rest can be chalked up to HD performance.

I didn't think it would be a limiting factor either, but it is.

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perhaps for those who have a dual core you could turn the multithreading option on, perhaps that will speed it up, also if the virus scanning option is turned on that could slow it down.

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Some AV's REALLY slow down WinRAR I've noticed...

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HOLY THREAD RESURRECTION, BATMAN!!!!!!!

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