Ethminer giving 20% Stale Shares

[parshuram]

Hello Fellow Miner,

I am using ethminer for Nvidia Cards as the hashrate is same as claymore. the cards are 6 GB. Rigs Uptime was 9 hrs.

But using claymore I am getting around 2-3 % stale shares in windows 7.

Worker      Reported Rate   Current Rate      Average 24h      Shares 1h    Stale 1h  Rejected 1h Updated
win_CLM   147.3 MH/s   147.4 MH/s   153.8 MH/s   132 (99%)     1 (1%)   0 (0%)     9 minutes ago
win_CLM1 142.7 MH/s   132.9 MH/s   131.3 MH/s   117 (97%)     4 (3%)   0 (0%)     9 minutes ago


but using ethminer I am getting around 15-20 % stale shares in ethos 1.2.4

Worker      Reported Rate   Current Rate      Average 24h      Shares 1h    Stale 1h       Rejected 1h Updated
ethos_eth       -                130.8 MH/s   116.4 MH/s   106 (85%)      18 (15%)   0 (0%)   9 minutes ago
ethos_eth1     -             135.4 MH/s   117.7 MH/s   118 (95%)      6 (5%)           0 (0%)   9 minutes ago
ethos_eth2     -             134.7 MH/s   115.9 MH/s   105 (81%)      25 (19%)   0 (0%)   10 minutes ago

(stats from pool ethermine.org using the nearest server)

The internet connection is perfectly fine and same for both the above rigs.

any ideas why so?

Should I shift to claymore or any other miner ? or is it just random?

[qualialibre]

hi, for how log did you mine ?
For one thing I know ethminer have 2 stratum module, and one is very inefficient.
You may have a version that use this old stratum module.
From what I remember about claymore's, he re-write the stratum module and it look freakin optimal.
To be sure, try another miner (genoil for example is supposed to have a stratum module quite optimal).

good luck

[parshuram]

9 hours rig Uptime