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bfgminer, bad performance on Gentoo [solved]
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shazeal
Tux's lil' helper
Tux's lil' helper


Joined: 03 May 2006
Posts: 140
Location: New Zealand

PostPosted: Sun May 12, 2013 10:01 pm    Post subject: bfgminer, bad performance on Gentoo [solved] Reply with quote

Hi,

I have just compiled the bitcoin miner bfgminer 3.0.2 / and git on gentoo against AMD SDK 2.8 and ati-drivers-13.4.

The performance when mining BTC is really bad compared with my debian wheezy install using the same drivers/SDK on the same computer.

On wheezy I get 280+ mh/s on my AMD 7850 card. I get 280 on dynamic intensity and 350ish with a high intensity.

On gentoo I get max 205 mh/s changing any options including intensity only makes it worse.

The werid thing is that Scrypt mining is identical on both installs?! Both get about 350kh/s

Any advice on what might be wrong would be appreciated :)


Last edited by shazeal on Mon May 13, 2013 7:17 am; edited 1 time in total
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shazeal
Tux's lil' helper
Tux's lil' helper


Joined: 03 May 2006
Posts: 140
Location: New Zealand

PostPosted: Mon May 13, 2013 7:17 am    Post subject: Reply with quote

Figured it out. For some reason on gentoo cg/bfg miners select phatk kernel by default. I had to manually choose the diablo (which was default on wheezy) kernel and the hash rate went back to normal. :lol:
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don quixada
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Joined: 15 May 2003
Posts: 613

PostPosted: Tue May 14, 2013 12:25 am    Post subject: Reply with quote

How did you manually choose it? Can you do it while bfgminer is running?

dq
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don quixada
l33t
l33t


Joined: 15 May 2003
Posts: 613

PostPosted: Tue May 14, 2013 1:07 am    Post subject: Reply with quote

Oh never mind. --help is my friend... :-P
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