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Topic: Help, why does slower hashrate gives higher utility rate ? (Read 1344 times)

sr. member
Activity: 282
Merit: 250
Compare WU for absolute differences. U is a relative figure based on target diff.
thank you master jedi.  Grin
-ck
legendary
Activity: 4088
Merit: 1631
Ruu \o/
Compare WU for absolute differences. U is a relative figure based on target diff.
sr. member
Activity: 282
Merit: 250
sr. member
Activity: 282
Merit: 250
so which is more important?
higher hash rate ?? or higher utility rate ?? higher utility gives faster Accepted shares.
donator
Activity: 1218
Merit: 1015
Err. Wait. So the miner with a lower difficulty and higher hashrate is sending LESS shares?

The idea behind share difficulty is to reduce bandwidth costs for all involved. Basically, by sending you more difficult work, they don't need to send you as much. A higher-powered mining thread should thus have more difficult shares so it isn't sending as much work. A more difficult share receives a higher reward than a less difficult share, so it's supposed to roughly balance out. (think of increasing difficulty as increasing voltage, decreasing current, and maintaining the same power)
sr. member
Activity: 282
Merit: 250
Hi guys, im currently mining LTC. Both machine are using the same card (Sapphire HD 7950).
However they both yield different results.

my first machine is running ~345 Kh/s and getting U: 3.35/m simply by using this setup:
Code:
cgminer.exe --scrypt -o stratum+tcp://eu.wemineltc.com:3333 -u USER -p PASS -I 13

my second machine is running ~600 Kh/s but only getting U: 2.4/m which uses the follwing code
Code:
cgminer.exe --scrypt -o stratum+tcp://eu.wemineltc.com:3333 -u USER -p PASS -I 20 -w 256 -g 1 --shaders 1792 --gpu-engine 1000 --gpu-memclock 1300 --auto-fan --lookup-gap 2 --gpu-powertune 10

note   U:   The Utility defined as the number of shares / minute

My question is, why does slower hash rate produce higher utility rate ??  is this common ? or im doing something wrong here??
arent hash and utility rate suppose to be proportional to each other??

the only difference that i can observe is machine#1 is doing diff 96 and machine#2 is doing diff 34.

any help would be much appreciated it.
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