How do I figure out what my hashrate is?

[Jeff]

I just installed a 6870 video card and want to make sure bitcoin is using it.  How do I figure out what my hashrate is?

Thanks,
Jeff

[[Tycho]]

I just installed a 6870 video card and want to make sure bitcoin is using it.  How do I figure out what my hashrate is?

Official bitcoin client can't use your video card. Don't use that client for mining.

You should download some GPU mining application like poclbm or guiminer:
https://github.com/downloads/Kiv/poclbm/guiminer-20110428.exe

[Hawkix]

How is deepbit.net hashrate calculated? It varies a lot, while that reported in my client does not.

[gigabytecoin]

How is deepbit.net hashrate calculated? It varies a lot, while that reported in my client does not.

The deepbit.net hashrate is a mining pool. It varies every time somebody enters or exits the pool.

[EpicBacon]

How is deepbit.net hashrate calculated? It varies a lot, while that reported in my client does not.

The deepbit.net hashrate is a mining pool. It varies every time somebody enters or exits the pool.

He is referring to his own mining speed reported by deepbit.net, which is based on submitted shares.

[[Tycho]]

How is deepbit.net hashrate calculated? It varies a lot, while that reported in my client does not.

It's a guesstimation based on the number of your shares received per some time. The longer is your averaging window the more precise results you get.

[fasti]

If you look at 5min avg on submited shares it can change a lot, I had 4Ghash/s with 300Mhash/s card in few mins, just got extremely lucky with completed shares.

[Jeff]

Thanks for the help.  I got it going with poclbm. 

Now I have another issue, though.  I'm only getting around 7 MHash/s.  I was expecting to get more like 250-400 MHash/s with my video card, as indicated on the hardware comparison form on the wiki.  Any ideas?  And when I try to increase the "Engine" speed in the AMD SmartDoctor it errors out saying that it can't do it for some reason.  Any help is much appreciated.

Thanks,
Jeff

[compro01]

Thanks for the help.  I got it going with poclbm. 

Now I have another issue, though.  I'm only getting around 7 MHash/s.  I was expecting to get more like 250-400 MHash/s with my video card, as indicated on the hardware comparison form on the wiki.  Any ideas?  And when I try to increase the "Engine" speed in the AMD SmartDoctor it errors out saying that it can't do it for some reason.  Any help is much appreciated.

Thanks,
Jeff

that sounds like a cpu miner speed.

what miner are you using?

i use guiminer and i get 250mhash out of my 6870.

[Garrett Burgwardt]

Try -d 0 and -d 1 as launch arguments with poclbm. Odds are it's simply using the wrong one. And make sure of course, to have the SDK installed.