hashcat Forum › Deprecated; Previous versions › General Help v
Problem with Hashcat and large hashlists

Threaded Mode
Problem with Hashcat and large hashlists
LSDoom Offline
Junior Member
**
Posts: 4
Threads: 1
Joined: Nov 2015
#1
11-29-2015, 04:59 AM (This post was last modified: 11-29-2015, 05:00 AM by LSDoom.)
Whenever I try to crack very large hashlists (50-100k unique hashes and larger) I get massive lag when I start the attack and for the first 30 seconds I cant even update the status screen. The cracking speed also starts extremely slow and builds up slowly to about full speed after 1-2 minutes.

I have tried using an output file, disabling/enabling the potfile and tried a few different hashlists & dictionaries.

I am using the Nvidia version of oclHashcat with 2 x GTX 970s.
Any suggestions are much appreicated.
Find
epixoip Offline
Legend
******
Posts: 2,936
Threads: 12
Joined: May 2012
#2
11-29-2015, 05:46 AM
You're IO bound.
Find
LSDoom Offline
Junior Member
**
Posts: 4
Threads: 1
Joined: Nov 2015
#3
11-29-2015, 06:35 AM (This post was last modified: 11-29-2015, 06:37 AM by LSDoom.)
(11-29-2015, 05:46 AM)epixoip Wrote: You're IO bound.

What can I do to fix this? I have up to date SSDs and HDDs in my system.
Find
undeath Offline
Sneaky Bastard
******
Posts: 2,301
Threads: 11
Joined: Jul 2010
#4
11-29-2015, 04:04 PM
Unless you want to develop a faster PCIe bus you can't. The hash list has to be transfered to your GPU.
Find
LSDoom Offline
Junior Member
**
Posts: 4
Threads: 1
Joined: Nov 2015
#5
11-29-2015, 06:14 PM
(11-29-2015, 04:04 PM)undeath Wrote: Unless you want to develop a faster PCIe bus you can't. The hash list has to be transfered to your GPU.

This never happened on my old system. Is it my motherboard?
Find