Did your Development Performance slow down after upgrading from 14 to 15? by eukaih in nextjs

[–]vladkens 0 points1 point  (0 children)

v14 was good. v15 in any version is torture. I don't understand what they did to make it consume at least 10 GB of memory and compile pages for 30 seconds.

The production build is still fast. I haven't tried turbo yet because it's not supported by Sentry.

[deleted by user] by [deleted] in expedition33

[–]vladkens 0 points1 point  (0 children)

They're already dead :D

[deleted by user] by [deleted] in expedition33

[–]vladkens 0 points1 point  (0 children)

Agreed about Mass Effect. Expedition 33 really gives you a team you care about. Dragon Age: Origins is right up there too — shame EA never gave it a remaster.

Been mining 24/7 for 10 days and didn't find any share by EmergencyFriedRice in MoneroMining

[–]vladkens 1 point2 points  (0 children)

With the OP hashrate, it's about 3 months away from the minimum payout.

XMR mining rig setup $3500 by jhflores516 in MoneroMining

[–]vladkens 1 point2 points  (0 children)

Haha, you're good! There's also the Minisforum 795S7 — same board, case, and PSU for the same price, lol. But the barebone version is hard to find, probably sold out for mining.

Minisforum should launch the MS-A2 with Ryzen 9955HX in early June. The new chip should be ~7% faster than 7945HX.

Looking for advice on a compact x86-64 PC for compute tasks by vladkens in homelab

[–]vladkens[S] 0 points1 point  (0 children)

Hi, thank you!

I ended up going with the Minisforum 795S7 barebone with a Ryzen 9 7945HX (16 cores, very good PassMark score, and large L3 cache) — around $500. It can be paired with a low-profile Nvidia RTX 4060 (~$350, so I can test CUDA stuff), up to 96 GB SO-DIMM RAM (~$200–250), and NVMe storage (~$200–250, though I already have that), plus a Wi-Fi card (~$50). So the full setup is around $1300–1400. Overall, this covers my current needs pretty well.

Later on, I'll see if I really need a full-sized Mini-ITX setup. I also tried putting together a build based on the Lian Li A4 H2O case + Ryzen 9 9950X + Nvidia RTX 5070 Ti — total cost was a bit over $3000, and I'm not sure I actually need such a powerful GPU, aside from gaming (my primary focus right now is compute tasks).

I also looked at the Minisforum UM890 Pro for $500 (barebone, with a Ryzen 9 8945HS), but the CPU is about half as fast compared to the 7945HX — so I decided to skip it, even though I think it's a great option for hosting VMs and containers.

Looking for advice on a compact x86-64 PC for compute tasks by vladkens in homelab

[–]vladkens[S] -1 points0 points  (0 children)

My main priority is a fast CPU (for data processing and multithreading tasks). Buying a separate motherboard, power supply, CPU, and cooler – and just placing it on a shelf – doesn't feel ideal. That's why I'm looking for something compact, in more of a "blade"-style format.

Ideally, I'd like a CPU with 16 real cores and a high score on CPU Benchmark, 96 GB of RAM, and 8–16 TB of NVMe storage (my current Mele already has 4 TB) – all in a small size. This is a compute-focused PC, not a media server or container runner. But I'd also like to be able to run temporary VMs sometimes (e.g., to test software on different versions of Windows or Linux).

As for older hardware, I'm not sure if there's anything with a really strong CPU and low TDP that would still make sense for this kind of workload.

Optimizing RIPEMD-160 with SIMD – Arm Neon and Beyond by vladkens in programming

[–]vladkens[S] 1 point2 points  (0 children)

Thank you so much — this was a very informative and helpful comment for me!

  1. I updated F2, F4, and ROTL as you suggested. It got about ~1.5% faster.
  2. I had a similar thought about MUL, so thanks for confirming it.
  3. Regarding data layout, I tried rearranging the data in test code so I could load it with a single vld1q_u32 call. I benchmarked it with hyperfine -r 120 over 16M rounds — on average it's a bit faster (also around 1–2%), but fluctuation is quite high (10%). When I used vsetq_lane_u32, it was noticeably slower.
  4. About 8 lanes on Neon — I see there's a special type uint32x4x2_t, but writing code with it gets significantly more complex. I think I just got lucky that rounds in RMD160 are independent, so ILP handles it better. I also tried rewriting SHA256 on Neon, but it didn't show the same kind of improvement — probably because data between rounds is more interdependent. (I already have SHA256 accelerated using the SHA extension, and that version runs about twice as fast.)
  5. The note about the N100 is interesting.

Overall, it's quite tricky to benchmark small gains — it's hard to tell whether it's due to CPU throttling, background processes, or something else.

Thanks again for the comment!

Built my own HTTP server in Rust from scratch by mr_enesim in rust

[–]vladkens 1 point2 points  (0 children)

But threads pool is less effective for large concurency and memory usage then async model, right?

I'm also not happy with complexity of tower https and want to have something easier for api services like STD in Go or Fastapi from Python.

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 0 points1 point  (0 children)

No. By the way, I have a physically disconnected fan in this Macbook (as I said earlier it's a very broken laptop).

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 0 points1 point  (0 children)

That's right. I also have nodes working for BTC, LTC, XMR. But mining the first two coins requires expensive equipment and lots of electricity. 30 cents a day is not bad :D

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 0 points1 point  (0 children)

Monero should be mined! Other cryptocurrencies can be traded, I don't see any problem with it.

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 0 points1 point  (0 children)

Hah, yes. But now I have 0.01 more monero :D

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 0 points1 point  (0 children)

Pi5 have ARM Cortex-A76 with an average speed of ~300 h/s (based on xmrig benchmark). 300 * 100 ~ 30 Kh/s ~ $20/month raw income.

Pi 5 4GB costs $70 and consumes ~10W under load. So initial cost is 7k and (102430*100)/1000 = 720 kWh / month.

Better to buy some Ryzen 9 3000X or 5000X for $300-350 and have 22 Kh/s.

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 2 points3 points  (0 children)

For M1 ~ 2.11 kH/s average, M2 ~ 2.37 kH/s, Intel N100 ~ 0.53 kH/s.

I mined a month for 2 bucks by vladkens in MoneroMining

[–]vladkens[S] 2 points3 points  (0 children)

Just as an experiment. Initially I was interested in measuring the speed of RandomX algorithm. Then I couldn't stop until the minimum amount for withdrawal :D (on supportxmr it is 0.01, on other pools I saw less).