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It is a common myth that Bitcoin is ruled by a majority of miners. This is not true. Bitcoin miners "vote" on the ordering of transactions, but that's all they do. They can't vote to change the network rules.
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PharmEcis
Jr. Member
 Offline
Activity: 176
Merit: 1
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January 15, 2018, 11:52:11 PM |
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So theoretically which cpu should be the best one for cryptonight? As well as which is best bang for the buck?
I would assume from his comments that L3 cache size is the primary determination of performance due to how many cores you can enable. Then it's up to clock speed. In the E7 range, there is no "optimum" choice where L3 will roughly equal total thread capability. You are either short on threads like you and I are with the 8837's which leaves L3 cache on the table and unused or you will have too many threads for the amount of L3 you have. Newer chips can resolve that due to increased L3 size but also at significant platform and CPU cost. |
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sundownz (OP)
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January 16, 2018, 09:22:28 PM |
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Been on vacation since Dec 22nd.
No issues related to the Z400s at all.
I did have one system go down due to either a bad GPU or PSU -- which I will troubleshoot when I get home. The Z400 will produce a beep code if something is bad (so I have yet to see any failure of PSU, GPU, or Riser cause a cascade and take out any other hardware) -- I simply had one of my employees shut that one system down and unplug it in the meantime.
Cannot complain about these things at all... ROCK SOLID.
Ordered 12 more for the 5th rack that I'll start later this month =)
nice info, hope you had a good vacay. Have you tried using pci extenders on the z400 to expand to say 6 or 8 cards? Thanks! I actually had another trip right after the vacation trip (business this time) -- Z400s solid again! I have not yet tried the PCI-E expansion cards... but I did buy two of them to experiment with. If I can get more than four cards running I will advise in this thread. I was able to get 5x 1060s running. I tried the first x16 slot and it did NOT want to work... so I moved the splitter to the 1st x1 slot and it DID work. Seems stable... gonna let it run all night to be sure.    |
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bigjee
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January 16, 2018, 09:47:11 PM |
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Been on vacation since Dec 22nd.
No issues related to the Z400s at all.
I did have one system go down due to either a bad GPU or PSU -- which I will troubleshoot when I get home. The Z400 will produce a beep code if something is bad (so I have yet to see any failure of PSU, GPU, or Riser cause a cascade and take out any other hardware) -- I simply had one of my employees shut that one system down and unplug it in the meantime.
Cannot complain about these things at all... ROCK SOLID.
Ordered 12 more for the 5th rack that I'll start later this month =)
nice info, hope you had a good vacay. Have you tried using pci extenders on the z400 to expand to say 6 or 8 cards? Thanks! I actually had another trip right after the vacation trip (business this time) -- Z400s solid again! I have not yet tried the PCI-E expansion cards... but I did buy two of them to experiment with. If I can get more than four cards running I will advise in this thread. I was able to get 5x 1060s running. I tried the first x16 slot and it did NOT want to work... so I moved the splitter to the 1st x1 slot and it DID work. Seems stable... gonna let it run all night to be sure. Awesome info!!! Thank you very much! Looks like you're using the 1 > 4 extenders. I might just get the 1 > 2 splitter to make a total of 6. Thanks again! Looking forward to the results! |
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skymia
Jr. Member
Offline
Activity: 140
Merit: 5
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January 16, 2018, 09:55:17 PM |
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Discordapp.com/invite/fQcYvkh ❤ Do Good Things-Make Life Better ❤ Masternodes 650% ROI ❤ TeleMedicine ❤ Folding@Home ❤ MEDIC coin |
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sundownz (OP)
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January 16, 2018, 11:33:23 PM |
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I should also add... I was overall slightly faster with 4 of 6 CPU cores mining vs. 5 or 6 of 6 cores.
The XMR-STAK "all in one" miner seems to want 2 cores to manage itself.
This is for Cryptonite mining for ITNS... I am going to do 100% on ITNS for at least a few months as I want to acquire a few million coins & I have already paid down my hardware so *current* earnings aren't a huge concern.
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PharmEcis
Jr. Member
Offline
Activity: 176
Merit: 1
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January 17, 2018, 01:16:22 AM |
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I should also add... I was overall slightly faster with 4 of 6 CPU cores mining vs. 5 or 6 of 6 cores.
The XMR-STAK "all in one" miner seems to want 2 cores to manage itself.
This is for Cryptonite mining for ITNS... I am going to do 100% on ITNS for at least a few months as I want to acquire a few million coins & I have already paid down my hardware so *current* earnings aren't a huge concern.
I need to recoup, so Zcash it is for me for now (unless there is a better alternative) as I bring boxes online. However CPUs will be dedicated to ITNS. One of the things I've been figuring out is that in the beginning I need to go for max profit but once I start paying down the equipment, I need to start diversifying a bit in what I'm mining, "just in case". Including in that would be power upgrades to increase density (240V PDU), tuning boxes for best cost / performance ratio, software optimization in choice of pools/algos, etc. I feel like a DSMer, I'm trying to go for most bang for least budget. Hopefully I can fake it until I make it.  Have you found that the all in one miner outperforms the older individual exes? |
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rs1x
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January 17, 2018, 01:35:52 AM |
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@sundownz - if you don't mind could you get a better picture of which slot you have the splitter in? I have some rigs there I woold like to try one of my splitters out on. Thanks
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Spyan
Newbie
Offline
Activity: 7
Merit: 0
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January 17, 2018, 03:18:55 AM |
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Being an IT hardware guy all my life this is right up my alley and really, mining feels no different than running prime95
I too thought of that. I had a whole bunch of machines running that back in the day! |
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nsummy
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January 17, 2018, 05:15:28 AM |
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VyprBTC
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January 17, 2018, 05:27:27 AM |
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Bought a couple of the Iris Pro 6200's at Microcenter for $400 to play with today - not worth it at all. Even at $250, add another $100 for Ram and SSD, it's only getting 250 H/s so you're talking about 12 months for your return.
God I love returning crap.
"So what was wrong this time?"
"Nothing, I just want my money back"
"Ok"
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nsummy
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January 17, 2018, 05:45:08 AM |
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Well now I feel like a dummy. I saw E7-8870s in the list before and thought it would be more of a boost than just double the accessible RAM which won't do us any good. 8870s can address 4.1TB while the lowly 4870 can only address 2.05TB I don't think that will give us the kind of performance boost we are looking for. I guess next time I'll make sure to check the specs instead of just going... Ooooh bigger numbers, has to be faster right? Found 4 8837s for 35 shipped, they are on the way... LOL Cache is the most important factor here, mining cryptonight with xmr-stak. The configuration of the miner should be based on the amount of cpu cahce available. Each miner thread needs 2Mb of L3 cpu cache. For the E7 family i made this formula to estimate cryptonight performance: 13 * corespeed in ghz * (amount of cache per cpu / 2 ) * number of physical cpu's * = Totalt H/s running one thread per 2MB cache For me: 13 * 2,66 * (24/2) * 4 ~ 1650 H/s one thing to also remember is there is a big difference between the E7s and the E700s and X7000s (which are the most common). The E7 series comes with AES-NI while the previous gen does not. So theoretically which cpu should be the best one for cryptonight? As well as which is best bang for the buck? Best bang for the buck would have been that $250 mini pc I posted  Actually though, best bang for the buck is always changing with these old xeons. You just have to scour ebay for the deals. Ideally though you would want Westmere or later. The E7-XXXX V1 is a Westmere, the next gen is Sandy Bridge with the v1 E3s and E5s, then Ivy Bridge, etc. Just make sure the processor you are getting follows the format of E7- or E5-. As someone else mentioned, the L3 cache is really the determining factor as to how many threads you can run. So the best bang for your buck would be to find cheap xeons with giant L3 caches. Personally I would search out the v2 and v3 E5s as the cache can go all the way up to 40. This is a great article with benchmarks that explains it better than I can: https://www.servethehome.com/monero-mining-benchmarks-cpu-mining-amd-ryzen-7-systems/Also here are benchmarks in a list format: https://forums.servethehome.com/index.php?threads/monero-mining-performance.12116/ |
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nsummy
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January 17, 2018, 05:46:25 AM |
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Bought a couple of the Iris Pro 6200's at Microcenter for $400 to play with today - not worth it at all. Even at $250, add another $100 for Ram and SSD, it's only getting 250 H/s so you're talking about 12 months for your return.
God I love returning crap.
"So what was wrong this time?"
"Nothing, I just want my money back"
"Ok"
I'm mining at 613 mh/s on mine. post your cpu.txt config file. You have something set up incorrectly. If you took the defaults then that is the reason for the low hashrate. |
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sundownz (OP)
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January 17, 2018, 12:18:50 PM |
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I should also add... I was overall slightly faster with 4 of 6 CPU cores mining vs. 5 or 6 of 6 cores.
The XMR-STAK "all in one" miner seems to want 2 cores to manage itself.
This is for Cryptonite mining for ITNS... I am going to do 100% on ITNS for at least a few months as I want to acquire a few million coins & I have already paid down my hardware so *current* earnings aren't a huge concern.
I need to recoup, so Zcash it is for me for now (unless there is a better alternative) as I bring boxes online. However CPUs will be dedicated to ITNS. One of the things I've been figuring out is that in the beginning I need to go for max profit but once I start paying down the equipment, I need to start diversifying a bit in what I'm mining, "just in case". Including in that would be power upgrades to increase density (240V PDU), tuning boxes for best cost / performance ratio, software optimization in choice of pools/algos, etc. I feel like a DSMer, I'm trying to go for most bang for least budget. Hopefully I can fake it until I make it. Have you found that the all in one miner outperforms the older individual exes? If I look at "right now" doing ZPOOL on NVidia cards and ITNS on AMD cards & CPUs is still the best on a per day basis... but I want to stockpile ITNS as I am confident it can do ~25 cents or more this year -- which would make my "actual" income way higher since I plan to hold until at least that point. My original target on it was to see 10 cents by March... but we already saw it hit that right before the big "blood bath" in all of crypto two months "early." As far as the new "all in one" miner -- it performs at least as good as two separate miners but is WAY easier to use / setup. On my NVidia machines it seems to be the fastest one I have tried... on my AMD machines it's about the same as doing SGMiner/XMRig. |
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sundownz (OP)
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January 17, 2018, 12:20:14 PM |
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@sundownz - if you don't mind could you get a better picture of which slot you have the splitter in? I have some rigs there I woold like to try one of my splitters out on. Thanks
It is simply the top PCI-E slot closest to the CPU. |
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rs1x
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January 17, 2018, 12:28:25 PM |
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@sundownz - if you don't mind could you get a better picture of which slot you have the splitter in? I have some rigs there I woold like to try one of my splitters out on. Thanks
It is simply the top PCI-E slot closest to the CPU. Thanks - I have a few 1 to 4 PCIE splitters that I had never tried. Might give them a shot. |
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spinx
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January 17, 2018, 12:32:41 PM |
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@sundownz - if you don't mind could you get a better picture of which slot you have the splitter in? I have some rigs there I woold like to try one of my splitters out on. Thanks
It is simply the top PCI-E slot closest to the CPU. Hi and thanks for an inspiring thread! Correct me if i am wrong, but didn't u have a DL580 G7 as well? Ii just got myself a DL580 G7 to use as a platform for my new gpu mining rig, but i cant get more than 1 gpu (rx570) to work simultaneously, i guess there is a software bios setting for this? Any ideas? Im using SMOS, 1 card works great. I started a separate thread about it here : https://bitcointalk.org/index.php?topic=2762177.msg28215548#msg28215548 . Would be awesome to have 12 cards working. Thanks! |
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sundownz (OP)
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January 17, 2018, 12:36:21 PM |
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@sundownz - if you don't mind could you get a better picture of which slot you have the splitter in? I have some rigs there I woold like to try one of my splitters out on. Thanks
It is simply the top PCI-E slot closest to the CPU. Hi and thanks for an inspiring thread! Correct me if i am wrong, but didn't u have a DL580 G7 as well? Ii just got myself a DL580 G7 to use as a platform for my new gpu mining rig, but i cant get more than 1 gpu (rx570) to work simultaneously, i guess there is a software bios setting for this? Any ideas? Im using SMOS, 1 card works great. I started a separate thread about it here : https://bitcointalk.org/index.php?topic=2762177.msg28215548#msg28215548 . Would be awesome to have 12 cards working. Thanks! Yes I do have one but I haven't yet put more than one GPU in it -- once I do I will share back in here =) |
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sundownz (OP)
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January 17, 2018, 01:23:44 PM |
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Been on vacation since Dec 22nd.
No issues related to the Z400s at all.
I did have one system go down due to either a bad GPU or PSU -- which I will troubleshoot when I get home. The Z400 will produce a beep code if something is bad (so I have yet to see any failure of PSU, GPU, or Riser cause a cascade and take out any other hardware) -- I simply had one of my employees shut that one system down and unplug it in the meantime.
Cannot complain about these things at all... ROCK SOLID.
Ordered 12 more for the 5th rack that I'll start later this month =)
nice info, hope you had a good vacay. Have you tried using pci extenders on the z400 to expand to say 6 or 8 cards? Thanks! I actually had another trip right after the vacation trip (business this time) -- Z400s solid again! I have not yet tried the PCI-E expansion cards... but I did buy two of them to experiment with. If I can get more than four cards running I will advise in this thread. I was able to get 5x 1060s running. I tried the first x16 slot and it did NOT want to work... so I moved the splitter to the 1st x1 slot and it DID work. Seems stable... gonna let it run all night to be sure. Ran all night stable -- I'm going to call it a success. |
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PharmEcis
Jr. Member
Offline
Activity: 176
Merit: 1
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January 17, 2018, 01:34:03 PM |
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Ran all night stable -- I'm going to call it a success.
Excellent news, I have 3 on the way.  I will admit this ongoing bloodbath was a nice way to temper my expectations, but it's still not stopping me from trying to take 8 lots at auction of server grade hardware. To the guy asking about the G7's, I'll know something tonight. My first one arrives today. I also have another server that might work for budget builds. Once I test, I'll advise. |
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