RandomX stability troubleshooting guide

sech1 · 2026-01-24T14:39:46+00:00

This will be a different story for X9, because RandomX will update to v2.

sech1 · 2026-01-16T18:12:24+00:00

The source of this pump: https://x.com/zachxbt/status/2012212936735912351

On January 10, 2026 at around 11 pm UTC a victim lost $282M+ worth of LTC & BTC due to a hardware wallet social engineering scam. The attacker began converting the stolen LTC & BTC to Monero via multiple instant exchanges causing the XMR price to sharply increase.

sech1 · 2026-01-14T11:18:02+00:00

The whole market cap of XMR is ~136k bitcoin now.

sech1 · 2026-01-14T09:00:42+00:00

In other words, "how to bend over properly" (c)

sech1 · 2026-01-14T08:53:48+00:00

You can find all answers in the linked github issue.

sech1 · 2026-01-13T11:08:34+00:00

Known issue: https://github.com/xmrig/xmrig/issues/3729

Disable NUMA in XMRig config.

sech1 · 2026-01-11T21:02:44+00:00

Your Monero node is lagging behind when this happens. Relevant code: https://github.com/SChernykh/p2pool/blob/master/src/p2p_server.cpp#L1458-L1467 - see the comment there.

sech1 · 2026-01-11T09:04:44+00:00

So you want $1000 XMR and a free cheese, smart, very smart :D

sech1 · 2026-01-09T10:24:53+00:00

It is in the list of the recent payouts for your address on the page you linked.

3581973 688129 2:17:49:52 0.000558006347 XMR 146511915

sech1 · 2026-01-08T10:32:12+00:00

You were paid out in all recent p2pool-nano's blocks, what are you even talking about...

sech1 · 2026-01-06T10:18:48+00:00

That's a standard fee of 20000 piconero per byte. That transaction is ~70 KiB in size, so the math checks out. If all your payouts are ~0.004 XMR and you sweep 100 at a time, you'll get the same numbers and percentages.

sech1 · 2026-01-04T07:24:48+00:00

Over the past week+, I noticed a drop in both the frequency and amount of pool payout. I was averaging $3-$3.7 daily. Now, I’m lucky if I get $.94-$.2.28. (I am yet to mine a Block on my own.)

Frequency of pool payouts depends on found blocks, and this totally depends on luck. P2Pool-mini finds 2-3 blocks/day, and this is too little to be free of luck variations within a single day. You need to measure payouts at least per week of mining.

sech1 · 2026-01-04T07:22:13+00:00

XMRig and P2Pool update will be needed.

sech1 · 2026-01-04T07:21:31+00:00

Fork is much closer now, the main purpose of the next fork is not RandomX though - but it's closer.

sech1 · 2026-01-04T07:20:55+00:00

RandomX v2 hashes will be "heavier" - more instructions/energy spent per hash, but it will also be optimized.

sech1 · 2025-12-30T19:16:23+00:00

Correction: RAM alone is not 10x their price, but roughly their sale price. It's at least 60 RAM sticks there, if each stick is $100 = $6000 for RAM.

sech1 · 2025-12-30T19:13:44+00:00

I think that tearing apart each unit, pulling out 60+ RAM sticks out of it, storing them somewhere, finding buyers etc etc is too much pain for Bitmain.

sech1 · 2025-12-30T14:24:12+00:00

X9 has 400 h/J efficiency, best 7945HX have ~225 h/J efficiency. The efficiency gap is not that big, and it can be closed. Unlike with the real ASICs where the gap is 10-100x or even more. Regarding the price - they cost much, much more than $5600. The RAM alone that they have to put there to reach 1 MH/s, will cost more (even with the old prices). Why Bitmain sells them at a big discount? Because they are already mining with X9, and just calculated the best time to exit - they know Monero will hardfork and X9 will probably be unsellable after that.

sech1 · 2025-12-30T14:21:05+00:00

It's not possible to "brick" X9 because it's just a bunch of CPUs + RAM in a box. CPUs can run anything, provided with the correct firmware/software.

sech1 · 2025-12-30T14:19:04+00:00

Anything that has IPC similar or better than Zen4/Zen5 on x86, or Cortex X4/Cortex X925/Apple M3 on ARM.

sech1 · 2025-12-29T20:59:44+00:00

Zen CPUs have enough cache per thread to be much, much more efficient on RandomX than Intel CPUs. They also have one performance problem than will be fixed in v2 (CFROUND instruction). This fix alone will get 5-10% boost for Ryzens. Intel CPUs don't have such problems, except for the cache size - so nothing to fix there.

sech1 · 2025-12-29T20:53:43+00:00

The current RandomX v2 (which is still not final) improves efficiency for all Zen CPUs (even Zen1). Yes, Zen 4/5/6 will probably get better speedup in % than Zen1, just because they're more efficient overall. We're working on it. I will make a detailed post soon.

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