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1081  Alternate cryptocurrencies / Mining (Altcoins) / Re: Compare profitability: Scrypt Scrypt-N multipool, Vertcoin, Doge Litecoin P2Pool on: April 17, 2014, 02:33:13 AM
Removed GHash multipool. The website was down at the time when I needed to collect stats, which made the decision easy. It's been underperforming anyway.

And yes, that is Doge going to the moon. Or at least its exchange rate is, 30% up since Monday.

Just as yesterday I'm still on my 72-hour lease on LeaseRig, while the current rates have doubled to ~0.011.

I wonder if it's worth switching to straight Doge, or if this burst of profitability is just temporary.

I've always mined on multipools, except during the ghash.io LTC introductory reward period. But I'd be willing to consider Doge.

Suchmoon, you're using a private Doge P2PPool, right? I guess that means you set up your own node.

If I were to point some hash at a Doge pool, would I be better off with a public P2PPool node, or is there some reputable standard Doge pool someone can recommend?

Are there any recommended MH/s minimums for Doge P2Pools like there are for LTC P2Pools?

Looks like there are good guides online for finding the closest node and configuring cgminer, so that looks simple enough.

One thing to keep in mind is that I capture the stats once a day and it just so happened that today the exchange rate for doge was significantly higher than yesterday, mining proceeds over 24 hours roughly the same, so the end result was 0.008+ instead of ~0.006. I could easily go the other way, e.g. exchange rate could drop next day and BTC profitability could be 0.004. If I had been exchanging coins e.g. every hour then the profitability would be probably less erratic because I would be tracking the difficulty / exchange rate correlation more closely (although it's not perfect either). Plus I had better than average luck recently, which won't last forever.

I believe than over long term a good multipool will outperform Doge or LTC. Although my own charts are proving me wrong at the moment, I think it's just short-term variance.

To be honest I don't know of a good Doge pool to recommend, which is part of a reason I'm running my own node. Not having to pay any fees is a nice bonus. MH/s doesn't really matter if you're in for the long run, but anything less than 2-3 MH/s might be boring during the less lucky periods.

Thanks for getting back to me. That's good info.

I guess I'll stick with the multipools for now, but I'm going to keep an eye on the Doge and LTC P2Pools. As you indicated, both of those have beat most of the multpools in your 10 day average.

That's interesting because WafflePool (one of the more transparent multipools) is mainly mining Doge and LTC anyway. They also have tons of hash power (having snagged the "whale" away from CleverMining), so they should have less variance. Ideally they should be doing better than either Doge or LTC, but that doesn't seem to be the case. I don't think the 2% fee explains the delta either.

If I do start mining Doge, I think I might go with a P2Pool node that has low latency and no fees. I found several in the 25 millisecond range that had zero fees.

Of course if I've got Doge then I have to figure out what exchange to use if I want to convert it to BTC. I never had to think about that with the multipools because conversion happens automatically.
1082  Alternate cryptocurrencies / Mining (Altcoins) / Re: Compare profitability: Scrypt Scrypt-N multipool, Vertcoin, Doge Litecoin P2Pool on: April 16, 2014, 10:13:51 PM
Removed GHash multipool. The website was down at the time when I needed to collect stats, which made the decision easy. It's been underperforming anyway.

And yes, that is Doge going to the moon. Or at least its exchange rate is, 30% up since Monday.

Just as yesterday I'm still on my 72-hour lease on LeaseRig, while the current rates have doubled to ~0.011.

I wonder if it's worth switching to straight Doge, or if this burst of profitability is just temporary.

I've always mined on multipools, except during the ghash.io LTC introductory reward period. But I'd be willing to consider Doge.

Suchmoon, you're using a private Doge P2PPool, right? I guess that means you set up your own node.

If I were to point some hash at a Doge pool, would I be better off with a public P2PPool node, or is there some reputable standard Doge pool someone can recommend?

Are there any recommended MH/s minimums for Doge P2Pools like there are for LTC P2Pools?

Looks like there are good guides online for finding the closest node and configuring cgminer, so that looks simple enough.
1083  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 15, 2014, 11:44:09 PM
UPDATE www.wafflepoolmonitor.com :

Due to a bug in code, the graph would jump showing incorrect past values for hashrates and balances, also for some non regular miners on this pool past values would flatline at 0. The bug has been corrected and no such error should be seen now on.

Thanks for the update.

I'm still seeing the problem that I reported earlier where there are spikes between zero and maximum hash rate every 20 minutes. You indicated that this happens when wafflepoolmonitor is not able to get the data through the api from wafflepool for a address.

This seems to happen every day, for hours at a stretch. And in fact it's happening for me now. It started a little less than 5 hours ago.

When I go directly to the wafflepool.com tmp_api URL for my address, I always get back reasonable JSON.

I really like wafflepoolmonitor, but it's hard to get reasonable info out of it when it's in this broken mode.
1084  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 13, 2014, 12:59:08 AM
Is there something wrong with the stats today? It shows 0.00287865 per 1 MH/s, or 67% of LTC. It started out the day at something like 2% LTC, so maybe a low estimate of profitability is normal for the start of the day until some time has passed?

I guess the start of the day for the site is midnight GMT?
1085  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 11, 2014, 09:29:30 PM
Anyone else seeing weird spikes in their stats over the last hour? I'm using wafflepoolmonitor, and what I see is spikes between zero and maximum hash rate every 20 minutes. There's 4 of these so far.

Prior to this, the graph is very steady, with the usual wiggling of the hash rate but a steady progression of unconfirmed and confirmed BTC.

This is reminiscent of yesterday when the stats went haywire.

hi, it happens when wafflepoolmonitor is not able to get the data through the api from wafflepool for a address. The values are set as 0 leading to spikes.It is a temporary issue and should be resolved soon.

Ah, OK. Thanks for the info.
1086  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 11, 2014, 09:02:30 PM
Anyone else seeing weird spikes in their stats over the last hour? I'm using wafflepoolmonitor, and what I see is spikes between zero and maximum hash rate every 20 minutes. There's 4 of these so far.

Prior to this, the graph is very steady, with the usual wiggling of the hash rate but a steady progression of unconfirmed and confirmed BTC.

This is reminiscent of yesterday when the stats went haywire.
1087  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][AUTO-SWITCH] Profit-switch auto-exchange pool: CleverMining.com on: April 11, 2014, 01:55:26 PM
Hi Terk,

My balance has been above the threshold for several days now. Where's my payment?  In the meantime I've stopped mining until I receive my BTC payout.

http://www.clevermining.com/users/1B49qTqGUm6ukgNhZv7YNEdnj3h5k4JKoj



Thanks.

You used 1B49qTqGUm6ukgNhzv7YNEdnj3h5k4JKoj instead of 1B49qTqGUm6ukgNhZv7YNEdnj3h5k4JKoj when connected for the first time and this is how your username was created. This was an invalid BTC address so payouts weren't made. I just renamed it and you should expect payout today.

This seems to happen a lot. Maybe the "Start" instructions should indicate that BTC addresses are case sensitive.

People should just copy and paste their BTC addresses anyway. Since they're complex and associated with money I don't know why anyone would try to type them by hand.
1088  Alternate cryptocurrencies / Mining (Altcoins) / Re: Compare profitability: Scrypt Scrypt-N multipool, Vertcoin, Doge Litecoin P2Pool on: April 11, 2014, 03:11:01 AM
Sorry about that. Some kind of glitch at Google. The chart works ok in my editable spreadsheet (that's how I made the screenshot for the OP) but for some reason breaks when the spreadsheet is published. I'll try to fix it tomorrow.

No problem. I really appreciate what you're doing here.

Before I found your thread I was using poolpicker.eu. But I think that site relies on self-published stats from the pool owners.

In contrast, your thread shows actual returns for MH/s applied.

This is one of the most important threads on this forum. Keep up the good work!
1089  Alternate cryptocurrencies / Mining (Altcoins) / Re: Compare profitability: Scrypt Scrypt-N multipool, Vertcoin, Doge Litecoin P2Pool on: April 11, 2014, 12:43:38 AM
Currently the LTC P2Pool is doing better than any of the current multipools.

I'm unclear as to how a Litecoin P2Pool can beat LTC profitability. Can someone explain that to me?
1090  Alternate cryptocurrencies / Mining (Altcoins) / Re: Compare profitability: Scrypt Scrypt-N multipool, Vertcoin, Doge Litecoin P2Pool on: April 11, 2014, 12:34:32 AM
I'm seeing the following error for the 10 day average panel of the google doc:

All series on a given axis must be of the same data type

Maybe a recent change broke this chart?
1091  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 10, 2014, 07:16:38 PM
workers hash rate falling its almost 0 with all my rigs, whats happening? but yet all my rigs are still mining

Same thing is happening to me. I've got two separate rigs (Gridseed and Dual Miner based). Both of them started to flatline about 25 minutes ago according to the server side specs and WafflePoolMonitor (which I just started using today):

http://www.wafflepoolmonitor.com/index.php?address=13SwGJmgPWVUAY9CszPQ7H4WL1RBqto3zu

I see no shares registered in the WafflePool side after shift ID 19178.

On my side things seem to be working normally and I see nothing in the logs that indicates a problem.

Something seems to be wrong on the WafflePool side, either with actual mining or the API.

I only just came to WP yesterday after being frustrated with CleverMining's bad profitability. This better get straightened out soon or I'm heading back to CM.
1092  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 10, 2014, 02:56:46 PM
at the moment hashra contola does not allow backup pools so no.
Sounds like something weird with Hashra.  Maybe try another controller like Scrypta to see if the problem still occurs?

Some other controller options: http://cryptomining-blog.com/1917-raspberry-pi-controller-images-with-gridseed-asic-support/

Scripta does not really work with gridseeds if you have more than a couple it keeps dropping the miners

I'm using the girnyau cgminer and the Scripta web frontend with 10 GridSeeds on my own Raspberry Pi image (not the Scripta image) and it's working. However I found that I had to disable the Scripta cron jobs or I would see USB disconnects with the GridSeeds.

Here's my post on the subject in case it's helpful:

https://bitcointalk.org/index.php?topic=494625.msg6113466#msg6113466
1093  Alternate cryptocurrencies / Mining (Altcoins) / Re: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher on: April 09, 2014, 03:42:10 PM
IMO 25 MHz increments work the best, one of my miners runs stable at 925 MHz, but throws HW errors at 856 MHz. The 25 MHz increments have the lowest PLL frequency and other PLL dividers set at 0. I have also found that the cgminer forks does not take in account the hashing time lost when finding an invalid nonce (HW error).

This is very helpful. I was trying to tune my GridSeeds and was puzzling over the results. Sometimes a lower non-25 MHz boundary value would result in more HW errors.

I've reworked my frequencies on 25 MHz boundaries and things seem to be much more predictable.

Thanks for this observation!
1094  Bitcoin / Bitcoin Discussion / Re: Bitcoin Core (Bitcoin-Qt) 0.9.1 released - update required on: April 09, 2014, 12:01:30 AM
I was using Mac OS X Bitcoin-Qt 0.8.6. As far as I know, I've never used the rpcssl command line option.

So if this rpcssl option is not on by default, then this vulnerability could not have affected me, right?

I've already updated to 0.9.1. I just want to know if I have to go through the emergency measures of creating a new wallet and transferring everything to it.

That's kind of disruptive because it means updating all my miner configs as well. Unless I can preserve my old addresses in the new wallet. Never had to do that so I don't know if it works or not.
1095  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 08, 2014, 11:31:37 PM
Nevermind. I just read the "Locked Difficulty (Feb 22nd)" section of the News page. It indicates that worker difficulty is locked to 512+.

I'm only at 5.5-ish MH/s, so I'm assuming I don't want to specify a worker difficulty above the base.

It might make sense to change the example on the main page to not specify a difficulty value, since my guess is most people will want the default.

The example on the main page indicates that you can pass an optional dif value as the password. But one of the features listed in this announcement thread is automatic difficulty adjustment.

So is the example obsolete and there is no need to specify difficulty via the password? If not, and specifying difficulty is recommended, is there a guideline for the dif value per MH/s?

Thanks in advance.
1096  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][POOL] Profit switching pool - wafflepool.com on: April 08, 2014, 11:26:17 PM
The example on the main page indicates that you can pass an optional dif value as the password. But one of the features listed in this announcement thread is automatic difficulty adjustment.

So is the example obsolete and there is no need to specify difficulty via the password? If not, and specifying difficulty is recommended, is there a guideline for the dif value per MH/s?

Thanks in advance.
1097  Alternate cryptocurrencies / Pools (Altcoins) / Re: [ANN][AUTO-SWITCH] Profit-switch auto-exchange pool: CleverMining.com on: April 08, 2014, 06:34:30 PM
My guess is that the whale moved to WafflePool, since they're at 30.42 GH/s now.

Looks like WafflePool's stats have been steadily improving. Their 10 day average is now better than Clever, although not by that much.

Props to suchmoon for his profit comparison:

https://bitcointalk.org/index.php?topic=514242.0

Apparently also a new gnash.io multipool in beta. Competition is a good thing...

4ish horus ago about 10 Gh/s left the pool - anyone know who it was or where it went?




That's "the whale" (sfire on these forums).  He has about 10-12 GH of GPUs and Gridseed miners and he jumps around the multipools according to what's trending higher.  You usually seem on Clever, Waffle and a few others, but he got his start on Middlecoin.
1098  Alternate cryptocurrencies / Mining (Altcoins) / Re: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher on: April 07, 2014, 05:24:13 PM
Since disabling the Scripta cron jobs, I haven't seen a disconnect in over 24 hours. Before this change, I was seeing 5 to 10 disconnects a day.

In fact, now that I think about it, I never saw disconnects with my rig until I got the cron jobs working. Originally when I installed Scripta manually, the cron jobs would not work when run as the www-data user. I had to run them as root to get them to work.

Since the disconnects are random, I didn't put 2 and 2 together until I noticed that all of the disconnects were aligned to 5 minute boundaries, which is when the Scripta cron jobs run.

I don't think this is a Scripta problem per se. I believe that there is likely a cgminer bug that sometimes happens when multiple processes attempt to access the JSON API at the same time. Three of the four Scripta cron jobs make the "summary" or "devs" API call. All of these cron jobs run concurrently on 5 minute boundaries.

The forth cron job just calls "/opt/vc/bin/vcgencmd measure_temp". This apparently returns an error on my Pi. Regardless, I doubt that the vcgencmd tool could interrupt USB communication. It's more likely that concurrent cgminer API calls cause the problem.

I've done a brief code review of cgminer but I haven't spotted a problem yet. I'm an experienced developer, but I have to admit that I'm new to cgminer, so I could easily be missing something. I'll keep poking at it to see if I can spot a problem.

I'm still seeing disconnects where after running for a while units disappear and are rediscovered. I'm on a Raspberry Pi running 10 GS units with the girnyau version of cgminer that I built from sources, plus Scripta as the web front end. Most of the units are on an Orico P10 U2.

After a disconnect, the device always reconnects a couple of seconds later. This leaves a "zombie" in the API because cgminer doesn't mark the device's status as dead. Sometimes more than one device at a time disconnects.

Here's an example of a disconnect from the log:

Code:
[2014-04-06 06:45:03] Stratum from pool 0 detected new block                    
[2014-04-06 06:45:03] GSD 8 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 06:45:03] work prepare failed, exiting mining thread 8                   
[2014-04-06 06:45:05] Device found, firmware version 01140113, driver version v3.8.5.20140210.02                   

The errors are *always* in the "prepare_work" method of the driver. In the sources, the function name is gridseed_prepare_work. I never see any other USB errors in the log. I've reviewed the various Linux system logs but don't see a correlation to the problem there.

When this error happens, the thread associated with the device exits. But the code doesn't mark the device as dead. That, in combination with the way that Scripta detects "live" devices by verifying that the last 5 second hash value is non-zero, results in irritating and bogus device info and hash rate totals in the web front end.

I don't have a spare 10 port hub, so I can't swap that out. I do have some poorly behaving Gridseeds that have excessive hardware failures, so I've tried further under-clocking them. But I still get disconnects.

One thing I've noticed is that all of the failures in the log are aligned on 5 minute boundaries within a few seconds. Here's the most recent ones:

Code:
[2014-04-05 13:45:03] GSD 6 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT
[2014-04-05 20:35:02] GSD 9 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 02:35:03] GSD 5 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 05:10:03] GSD 10 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 05:55:03] GSD 12 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 06:45:03] GSD 8 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 07:40:04] GSD 13 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   

Scripta has several cron jobs that run on 5 minute boundaries. Most of the cron jobs call the cgminer API for status, which should be harmless.

But the timing of these events is very suspect. I'm starting to think that there's a cgminer race condition where sometimes an API status call can interfere with the general operation of cgminer.

As a binary chop, I'm going to try disabling the Scripta cron jobs to see if the problem goes away.

If anyone else has any suggestions, I'm all ears...
1099  Alternate cryptocurrencies / Mining (Altcoins) / Re: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher on: April 07, 2014, 03:03:26 PM
As part of another investigation into a problem I have seen with disconnects, I compared the girnyau sources to the dtbartle version. As far as I can tell, the girnyau changes look reasonable and are in line with what the author intended. I can see no reason for a 10% difference in hash rate. Certainly there is nothing intentionally in the code changes that would account for that difference.

This is probably a dumb question given that you're an active forum member and this is not your first rodeo, but if you're overclocking your units are you seeing a lot of hardware errors? As you're probably aware hardware errors can eat up your effective hash rate.

I'm using the girnyau version on a Raspberry Pi, mostly so that I can underclock some badly behaved units. I'm seeing what I believe are correct effective hash rates.

At the risk of seeming paranoid, I never use prebuilt binaries. I always build them myself from source.

If you're certain that you're configuring your miners exactly the same between the two cgminer versions and you're seeing a significant performance difference, maybe you should build cgminer yourself from sources. It's easy to do and is worth it for piece of mind.

This version supports "Per device frequency setting by serial number ":

https://github.com/girnyau/cgminer-gc3355

this version gives me around 10% lesser hashrate then the orginal cgminer .... I did a test with 20 miners ....

I asked for it ... with PM no answer ... so far ...

Sorry to bother you.

I just used your https://github.com/girnyau/cgminer-gc3355

which was compiled in https://bitcointalk.org/index.php?topic=477709.msg5763819#msg5763819 for the raspberry.

Somehow I'm getting around 10% less kh with the same setup .... then with the orginal cgminer from andreed from here https://bitcointalk.org/index.php?topic=477709.msg5539257#msg5539257

... Why does this happen ....?
1100  Alternate cryptocurrencies / Mining (Altcoins) / Re: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher on: April 06, 2014, 04:43:15 PM
I'm still seeing disconnects where after running for a while units disappear and are rediscovered. I'm on a Raspberry Pi running 10 GS units with the girnyau version of cgminer that I built from sources, plus Scripta as the web front end. Most of the units are on an Orico P10 U2.

After a disconnect, the device always reconnects a couple of seconds later. This leaves a "zombie" in the API because cgminer doesn't mark the device's status as dead. Sometimes more than one device at a time disconnects.

Here's an example of a disconnect from the log:

Code:
[2014-04-06 06:45:03] Stratum from pool 0 detected new block                    
[2014-04-06 06:45:03] GSD 8 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 06:45:03] work prepare failed, exiting mining thread 8                   
[2014-04-06 06:45:05] Device found, firmware version 01140113, driver version v3.8.5.20140210.02                   

The errors are *always* in the "prepare_work" method of the driver. In the sources, the function name is gridseed_prepare_work. I never see any other USB errors in the log. I've reviewed the various Linux system logs but don't see a correlation to the problem there.

When this error happens, the thread associated with the device exits. But the code doesn't mark the device as dead. That, in combination with the way that Scripta detects "live" devices by verifying that the last 5 second hash value is non-zero, results in irritating and bogus device info and hash rate totals in the web front end.

I don't have a spare 10 port hub, so I can't swap that out. I do have some poorly behaving Gridseeds that have excessive hardware failures, so I've tried further under-clocking them. But I still get disconnects.

One thing I've noticed is that all of the failures in the log are aligned on 5 minute boundaries within a few seconds. Here's the most recent ones:

Code:
[2014-04-05 13:45:03] GSD 6 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT
[2014-04-05 20:35:02] GSD 9 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 02:35:03] GSD 5 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 05:10:03] GSD 10 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 05:55:03] GSD 12 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 06:45:03] GSD 8 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   
[2014-04-06 07:40:04] GSD 13 SendWork usb write err:(-7) LIBUSB_ERROR_TIMEOUT                   

Scripta has several cron jobs that run on 5 minute boundaries. Most of the cron jobs call the cgminer API for status, which should be harmless.

But the timing of these events is very suspect. I'm starting to think that there's a cgminer race condition where sometimes an API status call can interfere with the general operation of cgminer.

As a binary chop, I'm going to try disabling the Scripta cron jobs to see if the problem goes away.

If anyone else has any suggestions, I'm all ears...
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