| 31 Oct 2024 |
 connor (burnt/out) (UTC-8) | Added GC numbers to https://github.com/NixOS/nix/pull/11767; with the change it allocates more memory than before (which is odd, given that the implementation we currently have just mallocs and memcpy's like wild -- I'd expect at least some decrease, though maybe that's because I haven't figured out how to work transient yet). | 17:56:45 |
|  Philipp Jungkamp left the room. | 22:54:54 |
| Philipp Jungkamp joined the room. | 22:55:15 |
| 1 Nov 2024 |
 Mic92 | Bumped all nix versions and added some automation for updating nix: https://github.com/NixOS/nixpkgs/pull/352834 | 10:53:28 |
|  Ryan Yin joined the room. | 14:21:04 |
|  Samuel set a profile picture. | 21:25:16 |
| Samuel changed their display name from Samuel to Samuel (DrRed). | 21:41:39 |
| Samuel changed their display name from Samuel (DrRed) to Samuel. | 21:42:31 |
| 2 Nov 2024 |
|  error_pro joined the room. | 05:55:57 |
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| connor (burnt/out) (UTC-8) | Does anyone have any recommended reading on ways to implement call-by-name (call-by-need?) in CPP? | 20:51:34 |
| connor (burnt/out) (UTC-8) | TBH getting a little frustrated with https://github.com/NixOS/nix/pull/11767 and concerned that to improve performance with data structures that have structural sharing we’ll need to move more data structures over to permit sharing (instead of re-allocating when interacting with STL containers) | 21:00:53 |
 emily | FWIW, even in Haskell it's sometimes faster to use the contiguous, copy-happy vector than fancier structures just because of constant factors – not to discourage you, just saying that I'm not sure the performance trade-off is going to unambiguously be in favour of the elegant functional data structures | 21:05:02 |
| emily | memcpy is a very cheap operation these days | 21:05:22 |
| connor (burnt/out) (UTC-8) | pain | 21:36:50 |
 tomberek | Robert Hensing (roberth): I'm struggling to effectively rebase https://github.com/NixOS/nix/pull/11367 , do you have any progress on this? | 22:12:12 |
 Robert Hensing (roberth) | tomberek: no progress. Will work on regressions first, esp https://github.com/NixOS/nix/issues/11699 | 22:20:57 |
| tomberek | I got started, but I think i ran into unrelated build system issues. Will look again after dinner. | 22:21:46 |
| Robert Hensing (roberth) | also this one seems to be a growing papercut https://github.com/NixOS/nix/issues/10202 | 22:23:46 |
| 3 Nov 2024 |
| Mic92 | In reply to @roberthensing:matrix.org
also this one seems to be a growing papercut https://github.com/NixOS/nix/issues/10202 Did this issue not got resolved with libgit2? | 20:03:06 |
| 4 Nov 2024 |
 aktaboot | Redacted or Malformed Event | 12:47:17 |
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| 5 Nov 2024 |
|  abeldavid joined the room. | 01:22:44 |
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| tjni | What is happening when this is printed?
❯ nix flake update
[44.9 MiB DL] unpacking 'github:NixOS/nixpkgs/a04d33c0c3f1a59a2c1cb0c6e34cd24500e5a1dc' into the Git cache
On my company Mac laptop, we run MS Defender (wdavdaemon process), and each time this happens it takes minutes (sometimes 9-10) before it finishes. So I'm trying at first to get some help understanding what is happening during this step. | 18:06:33 |
 K900 | Unpacking a tarball with a lot of files | 18:07:40 |
