<p>The server will reject all shares that are below the difficulty it specified in your <code>getwork</code> request.</p>

<p>Reasons for the server to lower the difficulty of accepted shares:</p>

<ul>
<li>Less variance for users</li>
</ul>

<p>Reasons for the server to raise the difficulty of accepted shares:</p>

<ul>
<li>Lowers bandwidth usage</li>
</ul>

<p>Something from 4 to 10000 is about right.</p>

CC BY-SA 3.0
2013-03-26T17:15:50.240Z
2013-03-26T17:15:50.240Z
Nick ODell
<p>Actually, you do lose out if the "diff" is set too high. The higher the "diff" the more energy your miner will pull and the more watts you use.</p>

<p>Since the value of the days earnings is directly proportionate to the energy cost to mint. The value of coin is worth more if more energy was used to create it. </p>

CC BY-SA 4.0
2018-06-09T22:24:50.917Z
2018-06-09T22:24:50.917Z
Matthew Egan
<p>If you submit shares which are twice as difficult, you get twice the payout for each. You don't lose out by submitting difficult shares.</p>

CC BY-SA 3.0
2013-07-09T16:43:03.240Z
2013-07-09T16:43:03.240Z
Meni Rosenfeld
<p>170MH/s is not much, so you will not be making much more than 0.3 of a BTC every 2-3 weeks or so, if that. How much is your electricity? That will probably be your benchmark. Use this: <a href="http://tpbitcalc.appspot.com/" rel="nofollow">http://tpbitcalc.appspot.com/</a></p>

CC BY-SA 3.0
2013-03-26T14:50:51.483Z
Yes probably it is not worth it. That is what I am testing right now.. Calculating the earnings per day/hour is quite simple. It is also simple to calculate the costs. The main question more targeted how the difficulty comes in, in this scenario
Gundon
CC BY-SA 3.0
2013-10-01T11:11:28.663Z
Are you sure you don't have any kind of settlement?
V-X
CC BY-SA 3.0
2013-03-26T14:40:26.247Z
2013-03-26T14:40:26.247Z
user3367
<p>I'm trying poolmining ob btc-guild with the cgminer and try to calculate by testing if it is worth it or not.</p>

<p>One thing I wondered is: Why should I want to set a high difficult / not the lowest one, when mining?</p>

<p>If I am paid for the last N shared within a shift, I would want to contribute as many shares as possible. The lower the difficulty is the higher is the amount of shares, isn't it?</p>

<p>With about 170MH/s I have about 90 shares per hour.</p>

CC BY-SA 3.0
2013-03-26T18:29:11.610Z
Do you mean setting the difficulty setting for a specific worker on the BTCGuild site? (I use BTCguild). If so I think Elurthia (pool owner) has code to set the difficulty according to your workers speeds. But I would think, keep it at the lowest setting, you will create more low difficulty hashes than high difficulty ones, you can send all hashes >= the minimum difficulty for that worker to the server to receive a share I believe. also (90 shares a second its freaking ridiculous, I think you're counting wrong)
KDecker
CC BY-SA 3.0
2013-03-26T20:31:39.017Z
Should have been 90 shares per hour :D thanks for the hint. Yup I already have the setting on the site at the lowest option. But I thought that somehow the miningsoftware could also be configured. But Nicks answer tackles all those points
Gundon
<mining-pools><mining-pool-shares><miner-configuration><pool-payout-methods>
Why to mine with a high difficult on PPLNS
Gundon
# Why to mine with a high difficult on PPLNS

(Asked by: username_0 on 2013-03-26)

I'm trying poolmining ob btc-guild with the cgminer and try to calculate by testing if it is worth it or not.

One thing I wondered is: Why should I want to set a high difficult / not the lowest one, when mining?

If I am paid for the last N shared within a shift, I would want to contribute as many shares as possible. The lower the difficulty is the higher is the amount of shares, isn't it?

With about 170MH/s I have about 90 shares per hour.

**Tags:** mining-pools, mining-pool-shares, miner-configuration, pool-payout-methods

> **Comments:**
> **username_1**: Do you mean setting the difficulty setting for a specific worker on the BTCGuild site? (I use BTCguild). If so I think Elurthia (pool owner) has code to set the difficulty according to your workers speeds. But I would think, keep it at the lowest setting, you will create more low difficulty hashes than high difficulty ones, you can send all hashes >= the minimum difficulty for that worker to the server to receive a share I believe. also (90 shares a second its freaking ridiculous, I think you're counting wrong)  
> **username_0**: Should have been 90 shares per hour :D thanks for the hint. Yup I already have the setting on the site at the lowest option. But I thought that somehow the miningsoftware could also be configured. But Nicks answer tackles all those points  

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## 4 answers

### Answer by username_2 on 2013-03-26. Score: 2 | Accepted answer

The server will reject all shares that are below the difficulty it specified in your `getwork` request.

Reasons for the server to lower the difficulty of accepted shares:

* Less variance for users

Reasons for the server to raise the difficulty of accepted shares:

* Lowers bandwidth usage

Something from 4 to 10000 is about right.


---

### Answer by username_3 on 2018-06-09. Score: 0

Actually, you do lose out if the "diff" is set too high. The higher the "diff" the more energy your miner will pull and the more watts you use.

Since the value of the days earnings is directly proportionate to the energy cost to mint. The value of coin is worth more if more energy was used to create it.


---

### Answer by username_4 on 2013-07-09. Score: 0

If you submit shares which are twice as difficult, you get twice the payout for each. You don't lose out by submitting difficult shares.


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### Answer by username_5 on 2013-03-26. Score: -1

170MH/s is not much, so you will not be making much more than 0.3 of a BTC every 2-3 weeks or so, if that. How much is your electricity? That will probably be your benchmark. Use this: <http://tpbitcalc.appspot.com/>

> **Comments:**
> **username_0**: Yes probably it is not worth it. That is what I am testing right now.. Calculating the earnings per day/hour is quite simple. It is also simple to calculate the costs. The main question more targeted how the difficulty comes in, in this scenario  
> **username_6**: Are you sure you don't have any kind of settlement?  

---

