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241  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 13, 2013, 02:41:27 AM
Today's profit is 0.0342 BTC per MH/s per day.
242  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 12, 2013, 07:46:19 AM
Is there a mechanism to detect that we are stuck in one coin and mine without effect and move out of it?

I have a mechanism for moving away from a coin that is producing too many rejects, or if the daemon or pool process go down. But not if it's not generating blocks like it should be. I should add that. Also I don't have any fork detection, which would be hard.

I should have monitored that coin longer before leaving it unattended.
243  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 12, 2013, 06:59:10 AM
do we mine it till we find a block, or switch away regardless finding a block?
if the pool grows, this problem will getting smaller...

We switch away regardless.
244  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 12, 2013, 06:56:02 AM
Actually, our profits were slightly less than what I posted, due to the fact that some people use --no-submit-stale, which skews my numbers. Maybe a few percent less. Not really sure though.

Mining LTC gets you 0.287 BTC per MH/s per day. So we were less profitable than that today.

It takes us 1.46 hours to find a LTC block on average, if I did the math right. I don't think we need to eliminate it.
245  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 12, 2013, 06:42:05 AM
@h2o: what was this coin with the BLOCK BLOCK BLOCKS yesterday?

That was a problem. It was StarCoin. We mined it for about an hour, and got basically nothing.

I had a bug in the StarCoin pool that was making it mine much slower than it should have been. The other starcoin pools seem to have had the same issue.

Also, it forked, so they never made it to cryptsy.
246  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 12, 2013, 06:37:35 AM
Our profits for the last 3 days were:

friday: 0.0303 BTC per MH/s per day
saturday: 0.0295 BTC per MH/s per day
sunday: 0.0246 BTC per MH/s per day

I think we've been getting bad luck with litecoin blocks. Our LTC generation address is LNNSAXt1Lc4jfArAFaxURAmGsgrZgVDRCz. You can probably packet sniff and see that in the stratum protocol somewhere. We're not mining LTC at the moment though.
247  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 11, 2013, 07:47:08 AM
Just checking in. Payouts seem consistent. Smiley

Any more coins added? At last count I saw 26 coins and 3 exchanges mentioned.

I've suspended several that were never going to be the most profitable again. And I've added one I think since I posted that. So we're actually now only at 19 active coins.

And a fourth exchange is almost in.
248  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 10, 2013, 08:40:34 PM
It's not too unreasonable to see a string of 4 or so "detected new block" while mining feathercoin if your hashrate on that rig is only 400. But a full page might indicate an issue.

Are you using the --load-balance option? That might cause excessive "detected new block"s.
249  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 10, 2013, 08:21:33 PM
Any thoughts on why I'm mining at about 2 M/Hash but the website is only responding with 1.16? 

Thanks.

JR

Have you been mining at 2 MH/s for the past hour? The site shows the last hour's average.
250  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 10, 2013, 12:52:21 PM
Well it resolved itself somehow.

In the future if that happens we'll now automatically switch away after a minute.

I have an idea what might have been the issue. I'll investigate more tomorrow.

Edit: I believe I fixed the issue.
251  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 10, 2013, 12:09:46 PM
I just manually disabled that coin, that was getting all rejects. So we're good for now. I'm checking it out.
252  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 09, 2013, 06:49:47 PM
With this in mind. Would you mind informing us how your pools pay? I'm guessing either proportional or PPLNS. Just curious what happens to our round shares if some time mining LTC is unable to find a block, if they are all kept and paid at the end of a round (proportional) or not.

It's proportional. If I see people pool hopping, it will become PPLNS or some variation, but so far it hasn't been an issue.
253  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 09, 2013, 04:27:40 PM
I dont know how feesable it would be to foward our hashrate to a litecoin pool large enough to find blocks (or pay regardless) within the timeframe we are mining ltc.

I looked into that, and it's not as easy as it sounds.

If we were to do that, we would have a higher rejection percentage, because of the lag time from my pool to the proxied pool, probably of around 1%. Also, I believe the LTC pools with zero fees don't pay out transaction fees in blocks, so we'd lose some there too.

It would be nice to reduce LTC variance, but not at that cost and effort.
254  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 09, 2013, 02:25:46 AM
I did make one change to the profit calculation, to take the phantom rejects into account (stales I guess), that you see in this graph: http://middlecoin.com/rejectvshashrate.html

So we won't be switching as often to low difficulty coins.

I guess that's helping our reject rate a little.
255  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 09, 2013, 02:16:03 AM
Haven't the rejects pretty much dropped the last hour? Is that because of whatever we are mining? Huh

Yeah. The current coin has a slow block rate.

Although I've never seen our reject rate this low. It's making me slightly worried, but nothing seems broken.
256  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 08, 2013, 04:47:54 PM
would it make sense to split the pool in 2 or 3 ports?

so u could direct one port to such coins?


what if the pool grows and u have 1, 2 or 3 ghash?

I wouldn't make additional ports. I would redirect each miner individually, based on their past reject rate. Just an idea.
257  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 08, 2013, 04:36:28 PM
It would make sense to mine GlobalCoin only if I could redirect like 10% of our hashpower to it. With our entire hashpower, the reject rate would be something like 70%, the difficulty would adjust very quickly, and we would burn up the market buy orders fast.
258  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 08, 2013, 02:37:38 PM
cryptopi was kind enough to collect a bunch of data, and create some profit graphs.

I've correlated a few low profits dips on his graphs to MasterCoin, which is really the only coin we have mined that requires an exchange to LTC before BTC. So there may be a bug related to that exchange, or the pool might be bugged. Or the high reject rate might play into it. I've got it disabled for now.

A lot of the dips are when we switch to LTC, but don't find a block. And the large spikes are sometimes when we find a LTC block.

I need to update the estimated BTC calculation to be smoother. Right now, it just uses the last trade price. I need to either use the same formula I use for switching coins, or take the volume weighted trading average.



cryptopi's post follows


I've got some explanation and 3 graphs. First one is an overview of a 2 day time period. Can see general trends, but not details. Then two sub-graphs that show the details of two periods in the general graph when I collected a bunch of details for you.

I didn't know if you wanted stuff like this in the forum so I figured I'd send it this way. Figured I'd leave you in control of the detailed information flow.

First, some explanation about the data / graphs:

I mine with 7950s and graphed the results on the charts. All times are US eastern standard time zone (EST).

Graphs display the daily effect of the change in levels of BTC in all forms (sum of immature unexchanged, unexchanged, and available balance). This is the only way I can see to compute productivity since you only post results every 3 or 4 minutes and balances shift between categories during that period.

The graphs show both the instantaneous and smoothed (rolling average) mining results. As such, they contain not only the results of mining, but fluctuations in the value of unexchanged coins and the loss of any “failed” immature coins. At times, it appears that the fluctuations of the net balance (reported as productivity has a large component related to value fluctuations (immature and BTC balance remain constant, yet unexchanged balance changes in value). Data like this is choppy, but it should give you a good idea of what is going on. Just don't forget to take into account the lag effect when mining things with immature problems or rapidly changing exchanging rates.

Any flat sections of the graph lasting more than 5 minutes are averages during the time period that I did not collect frequent data (is a manual process). Although accurate, they can only be used for aggregate results and should not be used for detailed productivity determination. The change in height from one of these longer flat areas to another does not reflect when the change in productivity occurred, but is merely the cum average since the last data point at the time when I took the new data point. When data is being actively collected, the graph will show a change every 3 or 4 minutes, and do so consistently, as shown most of the time in the detail graphs. 

Now the graphs:









Please advise if I can be of other assistance. Your pool is great; we just need to get rid of the coins that prove to be less productive than a paper calculation would indicate. There is probably some interplay between my miner settings and the results, but mine are fairly generic so likely representative of most folks that are trying your pool that you would like to retain.

I maintain data like this on an ongoing basis, although not usually as detailed as the two inset sections I included above (takes a bit of time, did because I though it would be of use to you). Usually I grab a snapshot every few hours, sometimes every 30 min or less. If we could ever coordinate when you are switching to coins that you want to know about, I can specifically try to get data at that time with higher frequency.

Again, let me know what I can do to be of assistance to you. Happy to clarify anything about the graphs if they are not clear. Also, can send detailed / blown up graphs in a word document or whatever if you would provide an email address to send them to.

Keep up the good work, I'm sure it is not easy. If I can ever help you with any data analysis, just let me know. Your database should contain a wealth of information useful in optimizing the results of the pool (and thus your results).
259  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 08, 2013, 10:33:47 AM
Sorry about the downtime. I, uh, ran out of disk space. I wish it happened while I was awake.


are you sure only 0.035 ? i think mining just ltc is better if that is the case?

I calculated LTC profitability yesterday at 0.0307 BTC per MH/s per day.
260  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN] profit switching auto-exchanging pool - middlecoin.com on: August 08, 2013, 04:28:50 AM
Today's profits were 0.0350 BTC per MH/s per day.

Actually, it's slightly less than that, due to something I don't understand yet. The total hashrate drops, whenever our reject rate increases.

You can see it in this graph: http://middlecoin.com/hashratecharttest.html

The hashrate dips when we switch to a high block rate coin.

Here's a scatter plot, showing the relationship of the rejected percentage to the hashrate: http://middlecoin.com/rejectvshashrate.html

I'll be adding this new information into the profit calculation.

My best guess as to why this is happening is that miners are using --no-submit-stale, and the lost hashrate is all stales. But I really doubt stales would account for that much loss. So I really don't know why.
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