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Unrar speed boost -> unrar 5.11

Posted: September 1st, 2014, 1:57 pm
by .maxx
Hi guys,

I wondered why sabnzbd (0.7.18) unrar files so slow in compare with e.g "the unarchiver" (unpacking tool) on OSX which uses the same unrar lib.
So I make some tests:

My system:
  • Mac Mini i5 2.5Ghz
    OSX 10.9.4
    8GB Ram
    Samsung 830 SSD
    Synology 1813+ DualCore 2.13 Atom 8 Bay NAS
    transfer speed over Cat5e cable SSD->NAS = 120MB/s+
My sabnzbd configuration:
  • Running on MacMini
    Temp path -> SSD
    Complete path -> NAS
Speed (one 13.4GB big download with password):
original unrar (sabnzbd 0.7.18): 11:42sec
the unarchiver unrar: 5:20sec
newest unrar 5.11: 5:23sec

As you see the speed doubled by simply changing the sabnzbd unrar lib with the newest unrar from http://www.rarlab.com/download.htm.

Re: Unrar speed boost -> unrar 5.11

Posted: September 2nd, 2014, 8:26 am
by shypike
Thanks for the tip.
We upgrade unrar regularly, but of course their updates don't sync with ours :)
It seems they have finally cracked the problem of slow over-the-network unpacking.

Re: Unrar speed boost -> unrar 5.11

Posted: November 12th, 2014, 4:16 pm
by boe
I have the latest wirar on my PC - is there a way to change what sabnzbd used on windows?

Thanks

Re: Unrar speed boost -> unrar 5.11

Posted: November 13th, 2014, 9:34 am
by shypike
0.7.19 and 0.7.20RC1 contain unrar 5.11
Should you want to upgrade beyond that, just find and replace unrar.exe within SABnzbd's program folder.
(Note that it comes with a 32bit and a 64bit version, make sure you don't mix them up.)

Re: Unrar speed boost -> unrar 5.11

Posted: November 13th, 2014, 7:01 pm
by boe
Thanks!!!