Closed iamyulong closed 5 years ago
Experiment setup:
Unfortunately, the second machine died again for unclear reason. A total of 23000 blocks have been generated during the weekend. Below are the stats based block [10000, 20000]
.
Block time:
Latest block number: 23015
Fetching data from block #10000 to #20000
Block time statics -> (Mean: 10.26, Std: 12.37)
Pow Block time statics -> (Mean: 20.11, Std: 20.63)
Pos Block time statics -> (Mean: 20.93, Std: 23.19)
PoW difficulty:
PoS difficulty:
Orphaned block rate:
Latest block number: 23067
Fetching data from block #10000 to #20000
Number of orphaned blocks: 272
Orphaned block rate: 0.027197280271972803
Block reward distribution:
Latest block number: 23076
Fetching data from block #10000 to #20000
total pos:4903 --- 49.02509749025097%
total pow:5098 --- 50.97490250974902%
Key Type Total Block %overall
0xa0bd75fcD7676504671EE75F95e1ED7ada6D168d1b852956568e1a32cE6a7886 Pos 4903 49.02509749025097%
0x1111111111111111111111111111111111111111111111111111111111111111 Pow 5098 50.97490250974902%
Total difficulty (accumulated PoW diff x accumulated PoS diff):
Blockade docker cluster set up:
The reduce CPU load, I'm plugging in miners from an external machine.
Stats from block [2000, 7000].
Block time:
Latest block number: 7438
Fetching data from block #2000 to #7000
Block time statics -> (Mean: 8.32, Std: 6.78)
Pow Block time statics -> (Mean: 14.05, Std: 11.80)
Pos Block time statics -> (Mean: 20.38, Std: 21.05)
Orphaned block rate:
Latest block number: 7452
Fetching data from block #2000 to #7000
Number of orphaned blocks: 593
Orphaned block rate: 0.11857628474305139
Block rewards:
[http://10.0.4.47:19001]Latest block number: 7453
[http://10.0.4.47:19001]Fetching data from block #2000 to #7000
[http://10.0.4.47:19002]Latest block number: 7453
[http://10.0.4.47:19002]Fetching data from block #2000 to #7000
[http://10.0.4.47:19001]total pos:2039 --- 40.77184563087383%
[http://10.0.4.47:19001]total pow:2962 --- 59.22815436912617%
Key Type Total Block %overall
[http://10.0.4.47:19001]0x0000000800000008000000080000000800000008000000080000000800000008 Pow 378 7.558488302339532%
[http://10.0.4.47:19001]0x0000000300000003000000030000000300000003000000030000000300000003 Pow 370 7.398520295940812%
[http://10.0.4.47:19001]0x0000000200000002000000020000000200000002000000020000000200000002 Pow 386 7.7184563087382525%
[http://10.0.4.47:19001]0x0000000500000005000000050000000500000005000000050000000500000005 Pow 324 6.47870425914817%
[http://10.0.4.47:19001]0xA0b4F4238780C75B8CB85FA545bBD2B6BA41213a7dE694943bc06ebb4ae4f4D9 Pos 101 2.0195960807838436%
[http://10.0.4.47:19001]0x0000000600000006000000060000000600000006000000060000000600000006 Pow 371 7.418516296740652%
[http://10.0.4.47:19001]0x0000000700000007000000070000000700000007000000070000000700000007 Pow 390 7.798440311937613%
[http://10.0.4.47:19001]0x0000000100000001000000010000000100000001000000010000000100000001 Pow 374 7.478504299140172%
[http://10.0.4.47:19001]0xa02121d0a17fDb1fB3bd14a13B68db983417bD42e7D3B0C7916551BFD9443E37 Pos 315 6.29874025194961%
[http://10.0.4.47:19001]0x0000000400000004000000040000000400000004000000040000000400000004 Pow 369 7.378524295140972%
[http://10.0.4.47:19001]0xA045A87e03322563474d4dF61D805d7a945578aA402Ba43905a8aFDB590951D5 Pos 292 5.83883223355329%
[http://10.0.4.47:19001]0xa0b9166eefb20B8317006cC8A691781B23a836A94CC8B5E17598d567506a7160 Pos 399 7.978404319136173%
[http://10.0.4.47:19001]0xA040d1069a70DFC82E6Ac58cFBB4520F1b542FA2554EC3D6300A16B7f9d8F51D Pos 424 8.478304339132174%
[http://10.0.4.47:19001]0xa0A6795Cf6106e1a1C886e05e956a81533ba9f3212Eeb64240E1d74FF57a4324 Pos 115 2.299540091981604%
[http://10.0.4.47:19001]0xA0cFf27cf76784df14Ab1e13CBe773BcF77d191b93653d2a0688B07958f19A37 Pos 206 4.119176164767047%
[http://10.0.4.47:19001]0xA0ca529Ee50bf27870D9655bc847c0a6d042523442C7D671ac5C4F6Ba148aBA6 Pos 187 3.739252149570086%
PoW difficulty:
PoS difficulty:
Total difficulty:
Block rewards:
Node | Power (cpu or stake) | Rewards (# of blocks) |
---|---|---|
1 | 1 | 374 |
2 | 1 | 386 |
3 | 1 | 370 |
4 | 1 | 369 |
5 | 1 | 324 |
6 | 1 | 371 |
7 | 1 | 390 |
8 | 1 | 378 |
9 | 1000 | 101 |
10 | 1000 | 115 |
11 | 2000 | 187 |
12 | 2000 | 206 |
13 | 3000 | 292 |
14 | 3000 | 315 |
15 | 4000 | 424 |
16 | 4000 | 399 |
Trying to reproduce the experiment:
Node 1: 1 GPU miner (190 Sol/s) + 1000 wei stake Node 2: 1 GPU miner (120 Sol/s) + 2000 wei stake
Stats from block [2000, 7000]:
Block time:
Latest block number: 7462
Fetching data from block #2000 to #7000
Block time statics -> (Mean: 9.99, Std: 11.88)
Pow Block time statics -> (Mean: 19.49, Std: 19.97)
Pos Block time statics -> (Mean: 20.48, Std: 21.98)
Orphaned block rate:
Latest block number: 7471
Fetching data from block #2000 to #7000
Number of orphaned blocks: 146
Orphaned block rate: 0.029194161167766446
Rewards:
Latest block number: 7473
Fetching data from block #2000 to #7000
total pos:2438 --- 48.75024995001%
total pow:2563 --- 51.249750049990006%
Key Type Total Block %overall
0x1111111111111111111111111111111111111111111111111111111111111111 Pow 1632 32.63347330533893%
0xa0bd75fcD7676504671EE75F95e1ED7ada6D168d1b852956568e1a32cE6a7886 Pos 762 15.236952609478106%
0x2222222222222222222222222222222222222222222222222222222222222222 Pow 931 18.61627674465107%
0xA08c895FC144884e989a32a7CbFBf47346aD3926F57635A10F10C24b09135CA3 Pos 1676 33.51329734053189%
PoW difficulty:
PoS difficulty:
Total difficulty:
I'm setting the stake of the two nodes to [10000, 20000] at block 7605 and 7605 respectively.
Similar results were observed despite the significant stake increase.
Now exploring the following questions:
Continue experiments with the following setup:
We had a few assumptions over why the PoW block time is short.
Ge is exploring no. 1 and Fred is exploring no. 2
Experiment One : 4 nodes, 4 miners with 1 thread each, 0 stakers
Latest block number: 1016
Fetching data from block #201 to #1000
Block time statics -> (Mean: 18.56, Std: 16.37)
Pow Block time statics -> (Mean: 18.56, Std: 16.37)
Pos Block time statics -> (Mean: -1, Std: -1)
[http://127.0.0.1:9001]Latest block number: 1009
[http://127.0.0.1:9001]Fetching data from block #201 to #1000
[http://127.0.0.1:9002]Latest block number: 1009
[http://127.0.0.1:9002]Fetching data from block #201 to #1000
[http://127.0.0.1:9001]total pos:0 --- 0%
[http://127.0.0.1:9001]total pow:800 --- 100%
Key Type Total Block %overall
[http://127.0.0.1:9001]0x2222222222222222222222222222222222222222222222222222222222222222 Pow 189 23.625%
[http://127.0.0.1:9001]0x1111111111111111111111111111111111111111111111111111111111111111 Pow 205 25.624999999999996%
[http://127.0.0.1:9001]0x3333333333333333333333333333333333333333333333333333333333333333 Pow 209 26.125%
[http://127.0.0.1:9001]0x4444444444444444444444444444444444444444444444444444444444444444 Pow 197 24.625%
Latest block number: 1020
Fetching data from block #201 to #1000
Number of orphaned blocks: 54
Orphaned block rate: 0.0675
Experiment Two : 4 nodes, 0 miners, 4 stakers, 10000 wei each
Latest block number: 2163
Fetching data from block #1001 to #2000
Block time statics -> (Mean: 20.69, Std: 22.17)
Pow Block time statics -> (Mean: -1, Std: -1)
Pos Block time statics -> (Mean: 20.69, Std: 22.17)
[http://127.0.0.1:9001]Latest block number: 2173
[http://127.0.0.1:9001]Fetching data from block #1001 to #2000
[http://127.0.0.1:9001]total pos:1000 --- 100%
[http://127.0.0.1:9001]total pow:0 --- 0%
Key Type Total Block %overall
[http://127.0.0.1:9001]0xa0D9342Bc958587c8f14781EB6B124f68336d3921732a111343f11DF0E3F13Fb Pos 244 24.4%
[http://127.0.0.1:9001]0xA06586f27e6C4e218183CdE720931B35056d3857B52B8aA28afbF0dB110cAC03 Pos 228 22.8%
[http://127.0.0.1:9001]0xa0bd75fcD7676504671EE75F95e1ED7ada6D168d1b852956568e1a32cE6a7886 Pos 267 26.700000000000003%
[http://127.0.0.1:9001]0xA08c895FC144884e989a32a7CbFBf47346aD3926F57635A10F10C24b09135CA3 Pos 261 26.1%
Latest block number: 2188
Fetching data from block #1001 to #2000
Number of orphaned blocks: 20
Orphaned block rate: 0.02
Configuration:
Block time:
Latest block number: 9915
Fetching data from block #2000 to #8000
Block time statics -> (Mean: 7.87, Std: 6.07)
Pow Block time statics -> (Mean: 12.68, Std: 9.70)
Pos Block time statics -> (Mean: 20.75, Std: 22.63)
Orphaned block rate:
Latest block number: 9943
Fetching data from block #2000 to #8000
Number of orphaned blocks: 776
Orphaned block rate: 0.1293117813697717
Rewards:
[http://10.0.4.47:19001]Latest block number: 9951
[http://10.0.4.47:19001]Fetching data from block #2000 to #8000
[http://10.0.4.47:19001]total pos:2274 --- 37.89368438593568%
[http://10.0.4.47:19001]total pow:3727 --- 62.10631561406432%
Key Type Total Block %overall
[http://10.0.4.47:19001]0xA0cFf27cf76784df14Ab1e13CBe773BcF77d191b93653d2a0688B07958f19A37 Pos 247 4.115980669888352%
[http://10.0.4.47:19001]0xA045A87e03322563474d4dF61D805d7a945578aA402Ba43905a8aFDB590951D5 Pos 281 4.682552907848692%
[http://10.0.4.47:19001]0x0000000500000005000000050000000500000005000000050000000500000005 Pow 461 7.682052991168138%
[http://10.0.4.47:19001]0x0000000800000008000000080000000800000008000000080000000800000008 Pow 434 7.232127978670222%
[http://10.0.4.47:19001]0x0000000400000004000000040000000400000004000000040000000400000004 Pow 474 7.898683552741209%
[http://10.0.4.47:19001]0xa02121d0a17fDb1fB3bd14a13B68db983417bD42e7D3B0C7916551BFD9443E37 Pos 316 5.2657890351608065%
[http://10.0.4.47:19001]0x0000000600000006000000060000000600000006000000060000000600000006 Pow 494 8.231961339776705%
[http://10.0.4.47:19001]0xA0b4F4238780C75B8CB85FA545bBD2B6BA41213a7dE694943bc06ebb4ae4f4D9 Pos 299 4.9825029161806365%
[http://10.0.4.47:19001]0x0000000300000003000000030000000300000003000000030000000300000003 Pow 459 7.64872521246459%
[http://10.0.4.47:19001]0x0000000200000002000000020000000200000002000000020000000200000002 Pow 487 8.115314114314282%
[http://10.0.4.47:19001]0x0000000700000007000000070000000700000007000000070000000700000007 Pow 442 7.365439093484419%
[http://10.0.4.47:19001]0x0000000100000001000000010000000100000001000000010000000100000001 Pow 476 7.932011331444759%
[http://10.0.4.47:19001]0xa0b9166eefb20B8317006cC8A691781B23a836A94CC8B5E17598d567506a7160 Pos 290 4.8325279120146645%
[http://10.0.4.47:19001]0xa0A6795Cf6106e1a1C886e05e956a81533ba9f3212Eeb64240E1d74FF57a4324 Pos 278 4.632561239793368%
[http://10.0.4.47:19001]0xA040d1069a70DFC82E6Ac58cFBB4520F1b542FA2554EC3D6300A16B7f9d8F51D Pos 298 4.965839026828862%
[http://10.0.4.47:19001]0xA0ca529Ee50bf27870D9655bc847c0a6d042523442C7D671ac5C4F6Ba148aBA6 Pos 265 4.415930678220296%
I don't think it's because the power of nodes is too close, as the staking is not being affected.
Configuration: 8 nodes 4 miners with 1 EWBF miner each. GPU: GTX 1050 4 stakers with stake {1000, 2000, 3000, 4000}
Difficulty adjustment: before commit 272da4512f478136f26b509f613e5ccb41d025f4 alpha = 0.1 without minimal 1 difficulty adjustment in each step
Block time
Latest block number: 3617
Fetching data from block #200 to #3000
Block time statics -> (Mean: 10.45, Std: 12.66)
Pow Block time statics -> (Mean: 21.01, Std: 22.67)
Pos Block time statics -> (Mean: 20.72, Std: 22.89)
Rewards distribution
Latest block number: 3736
Fetching data from block #200 to #3736
total pos:1760 --- 49.759683347469604%
total pow:1777 --- 50.240316652530396%
Key Type Total Block %overall
0xa0bd75fcD7676504671EE75F95e1ED7ada6D168d1b852956568e1a32cE6a7886 Pos 159 4.495%
0xA08c895FC144884e989a32a7CbFBf47346aD3926F57635A10F10C24b09135CA3 Pos 391 11.055%
0xA06586f27e6C4e218183CdE720931B35056d3857B52B8aA28afbF0dB110cAC03 Pos 544 15.380%
0xa0D9342Bc958587c8f14781EB6B124f68336d3921732a111343f11DF0E3F13Fb Pos 666 18.830%
0x5555555555555555555555555555555555555555555555555555555555555555 Pow 438 12.383%
0x6666666666666666666666666666666666666666666666666666666666666666 Pow 432 12.214%
0x7777777777777777777777777777777777777777777777777777777777777777 Pow 449 12.694%
0x8888888888888888888888888888888888888888888888888888888888888888 Pow 458 12.949%
Configuration: 8 nodes 4 miners with 1 EWBF miner each. GPU: GTX 1050 4 stakers with stake {1000, 2000, 3000, 4000}
Difficulty adjustment: after commit 0d235f1c60ec7f35f415a4c53a54bb97f34b5830 alpha = 0.05 with minimal 1 difficulty adjustment in each step
Block time
Latest block number: 2567
Fetching data from block #500 to #2500
Block time statics -> (Mean: 9.98, Std: 11.70)
Pow Block time statics -> (Mean: 19.48, Std: 19.18)
Pos Block time statics -> (Mean: 20.46, Std: 21.26)
Rewards distribution
Latest block number: 2598
Fetching data from block #500 to #2500
total pos:976 --- 48.77561219390305%
total pow:1025 --- 51.22438780609695%
Key Type Total Block %overall
0xa0bd75fcD7676504671EE75F95e1ED7ada6D168d1b852956568e1a32cE6a7886 Pos 110 5.497%
0xA08c895FC144884e989a32a7CbFBf47346aD3926F57635A10F10C24b09135CA3 Pos 185 9.245%
0xA06586f27e6C4e218183CdE720931B35056d3857B52B8aA28afbF0dB110cAC03 Pos 271 13.543%
0xa0D9342Bc958587c8f14781EB6B124f68336d3921732a111343f11DF0E3F13Fb Pos 410 20.490%
0x5555555555555555555555555555555555555555555555555555555555555555 Pow 228 11.394%
0x6666666666666666666666666666666666666666666666666666666666666666 Pow 236 11.794%
0x7777777777777777777777777777777777777777777777777777777777777777 Pow 275 13.743%
0x8888888888888888888888888888888888888888888888888888888888888888 Pow 286 14.293%
Orphaned block rate (only getting level 1 orphans from the view of a single node)
Latest block number: 2571
Fetching data from block #500 to #2500
Number of orphaned blocks: 51
Orphaned block rate: 0.025487256371814093
Orphaned block rate (getting all orphans from the view of a single node)
Latest block number: 2580
Fetching data from block #500 to #2500
Main chain blocks count: 2001
Orpahned blocks count: 51 POW: 26 POS: 25
Orpahned blocks rate: 0.025 POW: 0.51 POS: 0.49
Difficulty adjustment: POW
POS
Updates after running 3 days, at block height 26000.
One EWBF miner died at around 5500 block height due to "out of memory" error. It is a Ubuntu 16.04 machine (others are 18.04), and is using an old version of EWBF miner for Cuda 8 because of driver version support limit.
Block time from blocks 500 to 5500 (with 4 miners):
Latest block number: 26387
Fetching data from block #500 to #5500
Block time statics -> (Mean: 9.77, Std: 11.89)
Pow Block time statics -> (Mean: 19.13, Std: 19.61)
Pos Block time statics -> (Mean: 19.96, Std: 20.87)
Block time from blocks 5500 to 25000 (with 3 miners left):
Latest block number: 26796
Fetching data from block #5500 to #25000
Block time statics -> (Mean: 9.89, Std: 11.45)
Pow Block time statics -> (Mean: 19.38, Std: 18.90)
Pos Block time statics -> (Mean: 20.18, Std: 21.43)
Block time overall:
Latest block number: 26787
Fetching data from block #500 to #25000
Block time statics -> (Mean: 9.86, Std: 11.54)
Pow Block time statics -> (Mean: 19.33, Std: 19.04)
Pos Block time statics -> (Mean: 20.14, Std: 21.32)
Scale to 16/32 nodes