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Author Topic: Can you explain this behavior?  (Read 734 times)
freedominnumbers
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June 27, 2011, 02:09:52 AM
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I didn't have a backup miner running until this evening but decided it would be a good idea to maximize b$ return. I am running a 5770 @ 960 core and 600 ram and pull a constant 200-220 mh/s usin guiminer with -v -w 128. After adding the backup and flags -f 60 to the primary miner and -f 100 to the backup I find the primary miner is still pulling 200 mh/s yet the backup is pulling an additional 75 mh/s.

Is there something I am missing here or perhaps a way to capture the 75 in the second miner and bring the primary up to 275mh/s?

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PcChip
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June 27, 2011, 02:14:21 AM
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There must be a mistake, as a 5770 is not going to be pulling 275-300 MH/s without nitrogen cooling and an extreme overclock + volt mod.

Most likely the load keeps shifting back and forth between them, and the output displays are out of phase with each other

(so instead of seeing 100 MH/s + 100 MH/s at exactly the same time, or 125 MH/s + 75 MH/s, they're updating out of synch with each other.)

My 5770 clocked in the 900's gets in the 200-210 range.  Also a tip - lower your ram to 300 or 302, it will cut power, heat, and increase hashrate.

All rates with Phoenix 1.50 / PhatK
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5850 - 400 MH/s  |  5850 - 355 MH/s | 5830 - 310 MH/s  |  GTX570 - 115 MH/s | 5770 - 210 MH/s | 5770 - 200 MH/s
freedominnumbers
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June 27, 2011, 02:33:24 AM
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Gotta be a guiminer issue. Says I'm pulling almost 400 now Smiley

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fascistmuffin
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June 27, 2011, 03:29:56 AM
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There's no way you're running around 400Mh/s and getting 190 shares in per hour. My 5850 gets ~250 shares/hour at ~300Mh/s
bcpokey
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June 27, 2011, 03:56:16 AM
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Fairly obvious that 388 ~= 189x2. Until the first worker kicks back in and updates its hashrate it just holds that value then adds the second worker to it. When the first one reconnects you'll see it drop.
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