| 20 Nov 2024 |
 imadnyc | Hey, I was looking into https://github.com/NixOS/nix/issues/11903 and I'm super confused -- where IS system? The author looks at it with a double dash, but even without it I can't find any reference to system either as a LongFlag or as a Setting | 01:41:07 |
| imadnyc changed their display name from dre to imadnyc. | 01:41:50 |
| imadnyc | Actually, I'm really confused on how --help decides to display anything | 01:44:59 |
 emily | ~everything in man nix.conf can be used as an --<option> | 01:54:42 |
| emily | and system is documented there | 01:55:08 |
| imadnyc | Unless I'm confused, I meant in the nix repo, where is system as a flag that can be accepted defined. For example, man nix.conf tells me that it takes allow-unsafe-native-code-during-evaluation as a flag, which is defined here: https://github.com/NixOS/nix/blob/32becc87fef7340600df75ffed6e7c6bc56aa827/src/libexpr/eval-settings.hh#L54 | 01:58:17 |
| imadnyc | The only mention is https://github.com/NixOS/nix/blob/32becc87fef7340600df75ffed6e7c6bc56aa827/src/libmain/common-args.cc , where it's mentioning erasing system for nix-env but I don't know where to find that? | 01:59:34 |
| emily | right, sorry. my guess is that it's not an eval setting and is somewhere else since it's not strictly about eval(?), but I'm afraid I don't know where in the codebase it is exactly | 01:59:44 |
| imadnyc | Do you think you could point me to the entrypoint for --help in nix3 commands? I see showManPage, but as far as I can tell that's just nix2 | 02:02:20 |
 @aloisw:kde.org | In reply to @dre:imad.nyc
Unless I'm confused, I meant in the nix repo, where is system as a flag that can be accepted defined. For example, man nix.conf tells me that it takes allow-unsafe-native-code-during-evaluation as a flag, which is defined here: https://github.com/NixOS/nix/blob/32becc87fef7340600df75ffed6e7c6bc56aa827/src/libexpr/eval-settings.hh#L54 system is defined in the libstore settings: https://github.com/NixOS/nix/blob/32becc87fef7340600df75ffed6e7c6bc56aa827/src/libstore/globals.hh#L188 | 05:48:53 |
| @aloisw:kde.org | In reply to @dre:imad.nyc
Do you think you could point me to the entrypoint for --help in nix3 commands? I see showManPage, but as far as I can tell that's just nix2 showHelp: https://github.com/NixOS/nix/blob/32becc87fef7340600df75ffed6e7c6bc56aa827/src/nix/main.cc#L242 | 05:55:23 |
|  updown joined the room. | 06:57:39 |
 John Ericson | Eelco: OK https://github.com/NixOS/nix/issues/11928 is the ticket I would like to fix involving CA things. Don't worry about that. | 21:35:34 |
| John Ericson | https://github.com/NixOS/nix/issues/11927 This is the plain code cleanup, no new features ticket that I would like to be done before attempting it | 21:36:03 |
 connor (he/him) (UTC-7) | As I've been working on the persistent lists PR, I've been thinking about the data structures we use currently for lists and attribute sets.
Lists: https://github.com/NixOS/nix/blob/0498e2259a0e6ae2f6e121579d35ace79c5b3ef2/src/libexpr/value.hh#L136
Attribute sets: https://github.com/NixOS/nix/blob/0498e2259a0e6ae2f6e121579d35ace79c5b3ef2/src/libexpr/attr-set.hh
Has anyone got metrics on what the most commonly used operations are on lists and attribute sets?
I'd like to think that we could find out what operations we need to make cheap and select a data structure which provides a low cost for those operations. | 22:25:53 |
 tomberek | Most common is opUpdate. I've got some valgrind stuff somewhere. | 23:25:07 |
 xokdvium | In reply to @connorbaker:matrix.org
As I've been working on the persistent lists PR, I've been thinking about the data structures we use currently for lists and attribute sets.
Lists: https://github.com/NixOS/nix/blob/0498e2259a0e6ae2f6e121579d35ace79c5b3ef2/src/libexpr/value.hh#L136
Attribute sets: https://github.com/NixOS/nix/blob/0498e2259a0e6ae2f6e121579d35ace79c5b3ef2/src/libexpr/attr-set.hh
Has anyone got metrics on what the most commonly used operations are on lists and attribute sets?
I'd like to think that we could find out what operations we need to make cheap and select a data structure which provides a low cost for those operations. I doubt that this information is readily available. It should be possible to either instrument cppnix to collect this information and/or use profilers (think gprof/callgrind). callgrind would be the easiest approach | 23:26:06 |
| tomberek | I used this:
valgrind --tool=callgrind ./build/src/nix/nix eval --file '<nixpkgs/nixos>' system --arg configuration '{boot.isContainer=true;system.stateVersion="24.11";}' --argstr system "x86_64-linux"
and got these graphs: https://github.com/NixOS/nix/issues/9034#issue-1910269659
| 23:33:08 |
| 21 Nov 2024 |
|  Jason Odoom changed their profile picture. | 02:51:38 |
 matthewcroughan | [nixos@nixos:~]$ nix-shell -p pciutils
error:
… while calling the 'import' builtin
at «string»:1:18:
1| {...}@args: with import <nixpkgs> args; (pkgs.runCommandCC or pkgs.runCommand) "shell" { buildInputs = [ (pciutils) ]; } ""
| ^
… while realising the context of a path
… while calling the 'findFile' builtin
at «string»:1:25:
1| {...}@args: with import <nixpkgs> args; (pkgs.runCommandCC or pkgs.runCommand) "shell" { buildInputs = [ (pciutils) ]; } ""
| ^
error: experimental Nix feature 'flakes' is disabled; add '--extra-experimental-features flakes' to enable it
| 15:16:11 |
| matthewcroughan | Does this mean that Nix just doesn't work out of the box now because of flakes? Or have I misconfigured something? | 15:16:21 |
| matthewcroughan | [nixos@nixos:~]$ nix --version
nix (Nix) 2.24.10
| 15:16:45 |
 Kamilla 'ova | In reply to@matthewcroughan:defenestrate.it
[nixos@nixos:~]$ nix-shell -p pciutils
error:
… while calling the 'import' builtin
at «string»:1:18:
1| {...}@args: with import <nixpkgs> args; (pkgs.runCommandCC or pkgs.runCommand) "shell" { buildInputs = [ (pciutils) ]; } ""
| ^
… while realising the context of a path
… while calling the 'findFile' builtin
at «string»:1:25:
1| {...}@args: with import <nixpkgs> args; (pkgs.runCommandCC or pkgs.runCommand) "shell" { buildInputs = [ (pciutils) ]; } ""
| ^
error: experimental Nix feature 'flakes' is disabled; add '--extra-experimental-features flakes' to enable it
you probably have something like nixpkgs=flake:nixpkgs in your nix path | 15:27:30 |
|  n-hass joined the room. | 20:59:53 |
| 22 Nov 2024 |
|  @tanvir:hackliberty.org joined the room. | 20:14:24 |
| 23 Nov 2024 |
 jade_ | In reply to @matthewcroughan:defenestrate.it
Does this mean that Nix just doesn't work out of the box now because of flakes? Or have I misconfigured something? this is probably this bug https://github.com/NixOS/nixpkgs/issues/292465
effectively it is that if you build a nixos config with flakes it won't enable flakes in the resulting system.
this would be literally a 1 line change to fix and ive just not got around to it. you just need to make nixpkgs.flake.source set flakes to be enabled
| 01:32:14 |
 Mic92 | In reply to @matthewcroughan:defenestrate.it
got this for the first time today
nixinate-phone> building '/nix/store/z03lxdp085hqpaxglqm7iphvdsvcdgvs-cardinal-24.09.drv'...
nixinate-phone> bad JSON log message from builder: [json.exception.parse_error.101] parse error at line 1, column 4099: syntax error while parsing array - invalid literal; last read: '"\u001b[01m\u001b[K/nix/store/pxb3zpbg0qdccadh884fag33va0xb4ds-gcc-13.3.0/include/c++/13.3.0/variant:1522:33:\u001b[m\u001b[K required from '\u001b[01m\u001b[Kstd::enable_if_t<(is_constructible_v<_Tp, _Args ...> && __exactly_once<_Tp>), _Tp&> std::variant<_Types>::\u001b[01;32m\u001b[Kemplace\u001b[m\u001b[K(_Args&& ...) \u001b[35m\u001b[K[with _Tp = RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >; _Args = {}; _Types = {NullModel, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::LSTMLayerT<float, 1, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::LSTMLayerT<float, 2, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::LSTMLayerT<float, 3, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::LSTMLayerT<float, 1, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT@nix {"a'; expected ']'
Robert Hensing (roberth): did you knot fix some json parsing error the other day? | 07:20:41 |
| Mic92 | In reply to @matthewcroughan:defenestrate.it
got this for the first time today
nixinate-phone> building '/nix/store/z03lxdp085hqpaxglqm7iphvdsvcdgvs-cardinal-24.09.drv'...
nixinate-phone> bad JSON log message from builder: [json.exception.parse_error.101] parse error at line 1, column 4099: syntax error while parsing array - invalid literal; last read: '"\u001b[01m\u001b[K/nix/store/pxb3zpbg0qdccadh884fag33va0xb4ds-gcc-13.3.0/include/c++/13.3.0/variant:1522:33:\u001b[m\u001b[K required from '\u001b[01m\u001b[Kstd::enable_if_t<(is_constructible_v<_Tp, _Args ...> && __exactly_once<_Tp>), _Tp&> std::variant<_Types>::\u001b[01;32m\u001b[Kemplace\u001b[m\u001b[K(_Args&& ...) \u001b[35m\u001b[K[with _Tp = RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >; _Args = {}; _Types = {NullModel, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 16, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 16, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 20, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 20, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 32, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 32, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 40, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 40, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::GRULayerT<float, 1, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::GRULayerT<float, 2, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::GRULayerT<float, 3, 64, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 64, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::LSTMLayerT<float, 1, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 2, 1, RTNeural::LSTMLayerT<float, 2, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 3, 1, RTNeural::LSTMLayerT<float, 3, 8, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 8, 1> >, RTNeural::ModelT<float, 1, 1, RTNeural::LSTMLayerT<float, 1, 12, RTNeural::SampleRateCorrectionMode::None>, RTNeural::DenseT<float, 12, 1> >, RTNeural::ModelT@nix {"a'; expected ']'
* Robert Hensing (roberth): did you not fix some json parsing error the other day? | 07:20:49 |
| Mic92 | Must have been something else. Here we go: https://github.com/NixOS/nix/pull/11939 | 08:08:42 |
 p14 | I have nix build going in a loop and I'm unable to ctrl-C it. :(. It's just doing a lot of time in 'getting git revision count of /path/to/nixpkgs', and if the process gets killed, it just goes straight into the next nix build and my shell isn't having a change to see the CTRL-C for the shell while loop. | 11:01:06 |
