| 21 Jan 2026 |
 eveeifyeve | So you I guess you can't set each machine to use the full core amount when you build or all of them at once in a distributed matter? | 14:44:51 |
| eveeifyeve | * So, I guess you can't set each machine to use the full core amount when you build or all of them at once in a distributed matter? | 14:44:57 |
 Randy Eckenrode | There are flags that some builders understand to limit load average, and there’s a protocol for managing build parallelism, but Nix supports none of that. The PR to let you set the desired load limit has been stalled for years. | 14:45:08 |
| Randy Eckenrode | I limit my Nix to no more than four builds as a compromise. | 14:45:27 |
 Ihar Hrachyshka | also I'd double check if it actually used the beefy machine. I see community builder in the screenshot. | 14:45:50 |
| Randy Eckenrode | You can, but Firefox or Swill will use whatever cores are on the machines where they’re built. They won’t use other machines. | 14:46:12 |
| eveeifyeve | Is there a pr upstream made already to try to support this protocol that I could potentially could look at? | 14:46:32 |
 Austin Horstman | yeah, i think i had some other stuff going so it's not a completely accurate time | 14:46:59 |
| Austin Horstman | that was for the rosetta-builder aarch64-linux | 14:47:26 |
 K900 | That's fundamentally busted for a variety of reasons | 14:47:50 |
| K900 | It was actively explored a long time ago | 14:48:03 |
| eveeifyeve | Because I know there is parallel eval pr that was super outdated that was going to be remade. | 14:48:12 |
| K900 | That's entirely unrelated | 14:48:25 |
| Ihar Hrachyshka | there's https://github.com/NixOS/nix/pull/11143 that gives feedback about load. not merged. | 14:49:03 |
| eveeifyeve | Yes, but that is for eval which I will be mentioning at the nix meeting to see what is the movement on that. | 14:49:35 |
| Randy Eckenrode | Support in Nix for the Make protocol is hypothetical. One big reason not to bother is Ninja doesn’t support it (but not for lack of trying). The PR to add NIX_LOAD_LIMIT for supporting -l is https://github.com/NixOS/nix/pull/11143. | 14:50:25 |
| eveeifyeve | I also don't know why in the tracker it's marked as done??? | 14:50:40 |
| eveeifyeve | * I also don't know why in the nix team tracker it's marked as done??? | 14:50:48 |
| Randy Eckenrode | I wish we could implement this in Lix, support it if it’s there, and let upstream Nix cherry pick it at their leisure. | 14:52:07 |
| Randy Eckenrode | * | 14:52:18 |
| eveeifyeve | The idea has been approved and all, however it would be nice to at least since we have been talking about getting movement on prs. This might be one to mention. | 14:52:27 |
| eveeifyeve | * The idea has been approved and all, however it would be nice to have at least. Since we have been talking about getting movement on prs. This might be one to mention. | 14:52:50 |
| eveeifyeve | * The idea has been approved and all, however it would be nice to have at least. Since we have been talking about getting movement on prs/milestones. This might be one to mention. | 14:52:56 |
| eveeifyeve | * The idea has been approved and all, however it would be nice to have at least. Since we have been talking about getting movement on prs/milestones. This might pottentially be the one I want to mention. | 14:53:14 |
| eveeifyeve | * The idea has been approved and all, however it would be nice to have at least. Since we have been talking about getting movement on prs/milestones. This might potentially be the one I want to mention. | 14:53:17 |
| Randy Eckenrode | Even limiting the number of builds, my load average can still get ridiculously high. | 14:54:29 |
| eveeifyeve | * The idea has been approved and all, however it would be nice to have at least. Since we have been talking about getting movement on prs/milestones. This might potentially be the one I want to mention. Because this will help out definitely with hydra. | 14:55:01 |
| Austin Horstman | there are several things i build that will redline my cpu by themself lol | 14:55:43 |
| eveeifyeve | I want it so it redlines my cpu so that way my builders can kick in. | 14:56:15 |
| eveeifyeve | * I want it so it redline my cpu, so that way my builders can kick in if this pr get's in. | 14:56:31 |
