Topic: Lots of rejected shares. (Read 6047 times)
Thanks for all the help guys I just switched back to the old miner and that fixed the problem. I've been planning on getting a new GPU for better mining anyway, but probably not for a while. The two Mh/s increase isn't worth all the stale shares.
i think running 2 instances of a miner increases stales dramatically. you really dont need to do it, just have a pool monitoring script
Are you mining on a pool with long polling?
If not, then that explains things. Phoenix doesn't have an askrate by default, so without long polling slow miners end up wasting a ton of time on stale work. The fix is to alter the command line to use an askrate.
example:
-u http://name:[email protected]:8332/;askrate=10
This would set an askrate of 10 seconds.
I'm not sure how to do this in GUIminer though.
If not, then that explains things. Phoenix doesn't have an askrate by default, so without long polling slow miners end up wasting a ton of time on stale work. The fix is to alter the command line to use an askrate.
example:
-u http://name:[email protected]:8332/;askrate=10
This would set an askrate of 10 seconds.
I'm not sure how to do this in GUIminer though.
i thought askrate is the work queue size (-q). this probably wouldn't help his stales. i'd get a different card anyway, 4670 is way too inefficient. i don't think new optimized miners support the hd4xxx series anyway. if your old guiminer worked fine, use that instead. your tweaking a few hashes out of your card won't make it efficient.
Are you mining on a pool with long polling?
If not, then that explains things. Phoenix doesn't have an askrate by default, so without long polling slow miners end up wasting a ton of time on stale work. The fix is to alter the command line to use an askrate.
example:
-u http://name:[email protected]:8332/;askrate=10
This would set an askrate of 10 seconds.
I'm not sure how to do this in GUIminer though.
If not, then that explains things. Phoenix doesn't have an askrate by default, so without long polling slow miners end up wasting a ton of time on stale work. The fix is to alter the command line to use an askrate.
example:
-u http://name:[email protected]:8332/;askrate=10
This would set an askrate of 10 seconds.
I'm not sure how to do this in GUIminer though.
Same Problem here with phoenix and 4670.
Use poclbm or DiabloMiner instead.
Phoenix 1.5 / GuiMiner with Phoenix ~50-80% stales
poclbm atm <1%
Tested it with Ubuntu 11.04 SDK 2.1 , Ubuntu with SDK 2.4 and Windows 7 with 2.4. Everytime phoenix seems broken.
HD 6970 in the same machines with phoenix are ok (<1% stales)
Use poclbm or DiabloMiner instead.
Phoenix 1.5 / GuiMiner with Phoenix ~50-80% stales
poclbm atm <1%
Tested it with Ubuntu 11.04 SDK 2.1 , Ubuntu with SDK 2.4 and Windows 7 with 2.4. Everytime phoenix seems broken.
HD 6970 in the same machines with phoenix are ok (<1% stales)
Probably because the GPU is slow and by the time it submits a share, it counts it as old. As to why you didn't have this problem before, i have no answer to that. Switch back to the older version then.
I'm running a backup pool with f=60 and a primary pool at f=30the backup pool is running at 2.7Mhash/s and has 119 accepted and 1 stale
Probably because the GPU is slow and by the time it submits a share, it counts it as old. As to why you didn't have this problem before, i have no answer to that. Switch back to the older version then.
Ever since I updated GUIminer, now that it uses phoenix, I have been getting a high number of rejected shares. Over the past 10 hours I have 59 accepted and 245 rejected. I can't figure out what is causing this bad ratio of accepted to rejected. I have an ATI Radeon 4670 running windows 7.The extra flags are worksize=32 and aggression=5. If you need anymore information let me know.
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