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Topic: What's wrong with Monero? (Read 805 times)

member
Activity: 236
Merit: 16
February 08, 2019, 03:09:30 AM
#24
It's not feasible, they need to have servers to handle nonce validation.
full member
Activity: 1148
Merit: 132
February 08, 2019, 02:33:38 AM
#23
I heard a rumor a few weeks back (Jan 19th) regarding ASICs on the network - supposedly there was a batch of 5000 miners manufactured for a private Chinese farm that went online just recently. It seems to be pretty feasible after comparing against some analytics done on the nonce ranges of historic blocks:

https://github.com/noncesense-research-lab/nonce_distribution/blob/master/nonce_distribution.ipynb

Conveniently enough, this analysis concludes the miners came online around Jan 9th. Some chit-chat from IRC matches up as well:

Quote
<@solar> i got some confirmation about asics too
<@solar> there's at least 1 group with cnv2 asics, 65nm
<@solar> supposedly a batch of 5000

So after a thorough analysis of the winning nonces for blocks 1760000-1765000 I can say this about ASICs that are on the network now:
320 cores (10 chips x 32 cores?)
each core processes nonces with 2^22 step - from 0 to ~1.34e9
Single core speed is 400 h/s - calculated from the area of spikes (which come with 2^22 step) on winning nonce graph
Overall ASIC device speed = 128 kh/s (400*320)
Around 4000-4500 ASICs online now

M5M400 they do mine on public pools: f2pool, viabtc, poolin - they all submit blocks with winning nonces strictly in ASIC nonce ranges
all 3 are Chinese pools ironically
so we can just count them in "unknown hashrate" part
which leaves only 230 MH/s known
and 641 MH/s = almost exactly 5000 * 128 kh/s solar

At the time of this post, network hashrate is 850 MH/s (640 MH/s being 75% unknown), putting us squarely in the danger zone for network-level attacks. This is also a major drain on public pools - with only 230MH/s of "legitimate" miners popular pools are operating at a significant loss, having only 60-70 MH/s on average (e.g. SupportXMR at 0.6% is just below $1300/mo, while their server expenses are approximately $5000/mo). With the next hard fork still a few months out this is a completely unsustainable scenario and will eventually lead to the closure and consolidation of the public pools, not to mention a mass exodus of "legitimate" miners.

5000 a month expenses thats where the problem is .  They should not spend more than 1k max
member
Activity: 236
Merit: 16
February 07, 2019, 04:07:13 PM
#22
I heard a rumor a few weeks back (Jan 19th) regarding ASICs on the network - supposedly there was a batch of 5000 miners manufactured for a private Chinese farm that went online just recently. It seems to be pretty feasible after comparing against some analytics done on the nonce ranges of historic blocks:

https://github.com/noncesense-research-lab/nonce_distribution/blob/master/nonce_distribution.ipynb

Conveniently enough, this analysis concludes the miners came online around Jan 9th. Some chit-chat from IRC matches up as well:

Quote
<@solar> i got some confirmation about asics too
<@solar> there's at least 1 group with cnv2 asics, 65nm
<@solar> supposedly a batch of 5000

So after a thorough analysis of the winning nonces for blocks 1760000-1765000 I can say this about ASICs that are on the network now:
320 cores (10 chips x 32 cores?)
each core processes nonces with 2^22 step - from 0 to ~1.34e9
Single core speed is 400 h/s - calculated from the area of spikes (which come with 2^22 step) on winning nonce graph
Overall ASIC device speed = 128 kh/s (400*320)
Around 4000-4500 ASICs online now

M5M400 they do mine on public pools: f2pool, viabtc, poolin - they all submit blocks with winning nonces strictly in ASIC nonce ranges
all 3 are Chinese pools ironically
so we can just count them in "unknown hashrate" part
which leaves only 230 MH/s known
and 641 MH/s = almost exactly 5000 * 128 kh/s solar

At the time of this post, network hashrate is 850 MH/s (640 MH/s being 75% unknown), putting us squarely in the danger zone for network-level attacks. This is also a major drain on public pools - with only 230MH/s of "legitimate" miners popular pools are operating at a significant loss, having only 60-70 MH/s on average (e.g. SupportXMR at 0.6% is just below $1300/mo, while their server expenses are approximately $5000/mo). With the next hard fork still a few months out this is a completely unsustainable scenario and will eventually lead to the closure and consolidation of the public pools, not to mention a mass exodus of "legitimate" miners.
newbie
Activity: 66
Merit: 0
February 07, 2019, 06:02:49 AM
#21
FPGA switching from Raven to Monero?
legendary
Activity: 3136
Merit: 1233
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February 07, 2019, 04:39:44 AM
#20
Fpga but CryptonightHeavy which I am mining it is giving good rewards to me still,I use Nicehash now that Winminer has shutdown and they pay in Bitcoin. Monero developers I don't think can do much about Fpga but they did a great job in their fight against Asics.
newbie
Activity: 2
Merit: 0
legendary
Activity: 1848
Merit: 1166
My AR-15 ID's itself as a toaster. Want breakfast?
January 23, 2019, 10:16:52 PM
#18
I mentioned this the day the diff skyrocketed to what it is right now (it almost hit double diff) and price shortly thereafter took a big dive of a large percentage.

A 4 month algo change commitment would be ideal for XMR IMHO.   It would leave just enough time for development of a hardware specific solution before that solution would become invalidated.   The only real weak link at that pint would be the devs and sharing of these algos too early before network-ready release...  if they can stay honest in that regard, im sure the coin would be pretty much the ideal form of "asic resistant".

A big part of that resistance, is identifying hardware/FPGA that could be easily used to circumvent the new algo's anti-asic strong points.     At some juncture (probably at that point now TBH):  memory will not be a strong point of an algo any longer.  We truly need to find a way to make time an integral function of the hash.   Create a speed-limit "time base" and have it conform to that.  If you pull time to an equal playing field;  then having more speed simply does you nothing.  SSL uses time as a part of it's validation scheme; and I hope in the future, some sort of likeness to this concept comes to fruition.
member
Activity: 94
Merit: 10
January 23, 2019, 06:01:35 PM
#17
It looks like a large botnet is building on the XMR network, we have seen a significant up tick in miner activity on monitored networks and they are calling out to known XMR mining pools.
member
Activity: 357
Merit: 26
January 21, 2019, 06:42:40 AM
#16
Also quite a sudden move, you'd think anybody with a brain (and a massive farm) would stagger their hashrate so difficulty didn't rocket so hard, and especially on the one coin that will take notice and fork again. However big this farm is, it's easily delivering the owner 30% less over the last 3 days.

Like somebody wants XMR to fork...
full member
Activity: 417
Merit: 105
January 20, 2019, 11:27:29 PM
#15
Monero team has to urgently prepare new fork. Network is heavily centralized by some some strong FPGA pool.
We tired to tell the clueless monero devs that a the simple changes they were making to the algo every  6 months were trivial for fpga devs and even asic devs to implement.  on thier github we pleaded with them to implement something like a memory hard change or better yet a progpow like algorithm to stymie fpgas and ASICS for a longer period but they ignored it

It's unfortunate that they do not consider better solutions than cryptonight, who ever said that it has to be a cryptonight variant always?  It's time to move on from it.
legendary
Activity: 3304
Merit: 3094
January 20, 2019, 09:58:46 PM
#14
I´m very concerned about this.

56% of the hashrate is unknown, not a pool. Maybe one person will have 51% soon --> so I sold all my monero´s  Tongue .

This could be a smart move. At least we can be almost sure those unknow hash rate are botnets. As we know monero has become the favorite coin to mine with botnets because there are not specific hardware to mine monero yet, it only can be mined with CPU and GPU. So, is the botnets get more than 51% from the hashrate that coin will be doomed.
full member
Activity: 1148
Merit: 132
January 20, 2019, 08:25:33 PM
#13
Monero team has to urgently prepare new fork. Network is heavily centralized by some some strong FPGA pool.
We tired to tell the clueless monero devs that a the simple changes they were making to the algo every  6 months were trivial for fpga devs and even asic devs to implement.  on thier github we pleaded with them to implement something like a memory hard change or better yet a progpow like algorithm to stymie fpgas and ASICS for a longer period but they ignored it
newbie
Activity: 10
Merit: 0
January 20, 2019, 07:08:43 AM
#12
The greedy miner will most likely want to mine as much as he/she can and get his or her investment back befoe n algo change. As a result he/she will most likely sell his/her mined coins as soon as he/she can, and this will have a negative effect on the price of monero. The Eth Asics are also having a negative effect on the supply/demand of ETH and as a result a negativeeffect on the price of eth.    
legendary
Activity: 3808
Merit: 1723
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January 20, 2019, 12:52:53 AM
#11
One thing I don't understand is this. Say you had the technology, money, and experience to make some FGPA/ASICs for Monero's current mining algo and you actually managed to achieve 50% of the hashrate of the network, why wouldn't you just spread out your hashrate across the various pools?

Because its freaking people out, and the XMR dev will obviously notice this and they will most likely do an algo change sometime in the near future and render their hidden ASICs useless.

I don't think its going to be a 51% attack, I just think its some greedy miner who wants to get as much $ as possible before the fork.
jr. member
Activity: 208
Merit: 3
January 19, 2019, 08:08:06 PM
#10
I´m very concerned about this.

56% of the hashrate is unknown, not a pool. Maybe one person will have 51% soon --> so I sold all my monero´s  Tongue .

member
Activity: 618
Merit: 21
January 19, 2019, 07:09:33 PM
#9
Monero team has to urgently prepare new fork. Network is heavily centralized by some some strong FPGA pool.
newbie
Activity: 111
Merit: 0
January 19, 2019, 03:37:25 PM
#8
Next algo switch in few months?
jr. member
Activity: 208
Merit: 3
January 19, 2019, 03:30:33 PM
#7
where to buy those FPGAs ?
You can buy the hardware, but the problem is the software.
jr. member
Activity: 308
Merit: 4
January 19, 2019, 03:13:24 PM
#6
where to buy those FPGAs ?

You cannot buy them its private farms.
jr. member
Activity: 208
Merit: 3
January 19, 2019, 02:18:16 PM
#5
A new botnet is also possible  Grin
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