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NixOS RISC-V

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NixOS on RISC-V https://wiki.nixos.org/wiki/RISC-V https://pad.lassul.us/NixOS-riscv64-linux https://github.com/orgs/NixOS/teams/risc-v65 Servers

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17 May 2025
@lotte:chir.rs@lotte:chir.rs
In reply to @dramforever:matrix.org
@rosscomputerguy:matrix.org one week continuous building? best advertisement for visionfive 2 i've heard
i have run a small benchmark earlier today and their perf figures are just Wrong
17:02:08
@dramforever:matrix.orgdramforeverhmm, i'd just look at the wattage and ballpark it. 65W should be fine17:02:08
@dramforever:matrix.orgdramforeverhow are you booting17:02:09
@dramforever:matrix.orgdramforever... perf figures?17:02:43
@alex:tunstall.xyzAlexFlash (with manual customisations to boot from NVMe)17:02:47
@lotte:chir.rs@lotte:chir.rs
In reply to @dramforever:matrix.org
... perf figures?
on the kickstarter they raccompared themselves to the pi 4
17:03:15
@lotte:chir.rs@lotte:chir.rsracclaiming it was ~similar speed17:03:22
@alex:tunstall.xyzAlex
In reply to @lotte:chir.rs
i have run a small benchmark earlier today and their perf figures are just Wrong

Wrong as in worse than advertised?

Could be a difference in flags if you're not enabling _Zba_Zbb and PGO.

17:03:37
@lotte:chir.rs@lotte:chir.rsyeah tbf i didn’t enable Zba_Zbb17:04:06
@lotte:chir.rs@lotte:chir.rsbut the raccode i was testing did not make use of those instructions17:04:29
@dramforever:matrix.orgdramforever
In reply to @lotte:chir.rs
on the kickstarter they raccompared themselves to the pi 4
... it's just not possible
17:04:50
@dramforever:matrix.orgdramforeverthe 4 cores on the pi4 are simply way better17:05:13
@alex:tunstall.xyzAlex Maybe they were just comparing the clock rates?
(Very scientific benchmark that.)
17:05:50

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