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Message-ID: <BLU118-W462848D6D79F300E8C4205D0E90@phx.gbl>
Date: Sun, 28 Dec 2008 02:34:42 +0000
From: Ruben Lara <bermejator@...mail.com>
To: <john-users@...ts.openwall.com>
Subject: RE: large pot and --show problem
Hi all!
> Date: Fri, 26 Dec 2008 05:43:31 +0300
> From: solar@...nwall.com
> You mentioned that your pot file is 400 MB. How large is the password
> file that is slow to --show? And just how much time does --show on it
> take to complete?
Password file is about 55 MB, to burte force it take ~3 hours, and --show never end :P, well i get it running about 3 days, and continue...
> That's weird. If the process consumes very little CPU as you say (below 1%)
> and presumably not all memory it could get, then what does it spend most
> of its time on? Can you perhaps copy & paste the first few lines of "top"
> output while the process is running - those lines that show user vs.
> system CPU time percentages, as well as memory and swap usage info?
> Also include the line for the "john" process.
Tasks: 53 total, 3 running, 50 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.7%us, 3.7%sy, 0.0%ni, 0.0%id, 91.3%wa, 0.3%hi, 0.0%si, 0.0%st
Mem: 516480k total, 511476k used, 5004k free, 212k buffers
Swap: 996020k total, 382872k used, 613148k free, 13344k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2579 bermejo 20 0 575m 325m 348 R 0.7 64.5 0:15.28 john
> Then, can you please run "/sbin/hdparm -t" on any relevant hard drive
> devices (where your files reside, where the swap partition resides) -
> and post the output?
bermejo@...MEJO-VIEJO:~$ sudo hdparm -t /dev/hda4 <---( /home/ where passfiles and john reside)
/dev/hda4:
Timing buffered disk reads: 80 MB in 3.06 seconds = 26.13 MB/sec
bermejo@...MEJO-VIEJO:~$ sudo hdparm -t /dev/hda2 <--- (Swap)
/dev/hda2:
Timing buffered disk reads: 92 MB in 3.02 seconds = 30.47 MB/sec
bermejo@...MEJO-VIEJO:~$ sudo hdparm -t /dev/hda3 <--- ( / )
/dev/hda3:
Timing buffered disk reads: 92 MB in 3.06 seconds = 30.07 MB/sec
>If any IDE hard drives are involved, then please
> also do "/sbin/hdparm -d /dev/hda" and the like. One guess is that you
> might not have DMA on an IDE drive enabled, and indeed reading 400 MB
> without DMA will take ages (well, it may take 2 minutes).
bermejo@...MEJO-VIEJO:~$ sudo hdparm -d /dev/hda
/dev/hda:
using_dma = 1 (on)
Look like, it's ok, it's all very strange :/
Thank you for your time
Rubén Lara
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