samueldr changed the topic of #nixos-dev to: #nixos-dev NixOS Development (#nixos for questions) | NixOS 19.09 is released! https://discourse.nixos.org/t/nixos-19-09-release/4306 | https://hydra.nixos.org/jobset/nixos/trunk-combined https://channels.nix.gsc.io/graph.html | https://r13y.com | 19.09 RMs: disasm, sphalerite | https://logs.nix.samueldr.com/nixos-dev
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<adisbladis> thoughtpolice: Hm? Could you maybe use `replaceDependency` ?
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<clever> thoughtpolice: nix itself (not hydra) during a `nixos-rebuild` to update thru a mass-rebuild, was able to peak at ~25 requests/second over a 1 minute average, nearly all cache hits with under 1ms latency (by ping)
<clever> but even that, had a rather long delay with zero feedback from nix
<clever> after the narinfo phase, it switched to ~12 hits/sec and ~12 miss/sec of nar files
<clever> i think some of those hits are false, due to nix telling the laptop "build X", and then the laptop has to download the exact same deps
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<thoughtpolice> clever: Is this with the upstream cache? My cache? cachecache?
<thoughtpolice> adisbladis: Not sure how to do that!
<clever> thoughtpolice: thats with cachecache
<clever> which will relay all misses to both cache.nixos.org and hydra.iohk.io
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<ckauhaus> Hi, has anyone experience with https://www.dpdk.org? (Data Plane Development Kit)
<ckauhaus> There's a PR to review: https://github.com/NixOS/nixpkgs/pull/73580
<{^_^}> #73580 (by risicle, 5 days ago, open): [r19.03] dpdk: 17.11.2 -> 17.11.9, addressing CVE-2019-14818
<pie_> niksnut: could we get verbose output as a config setting as well? or something? not all tools pass extra cli args to nix and theres no env var or anything :(
<pie_> or some kind of "pass some args to nix" method? (i think that usualy happens via env vars and idk if thats a good or caveat heavy practice or anything?)
<flokli> ckauhaus: that dpdk PR LGTM.
<flokli> (also merged in the PR to master)
<clever> src/libmain/common-args.cc: .description("increase verbosity level")
<clever> src/libmain/common-args.cc: .handler([]() { verbosity = (Verbosity) (verbosity + 1); });
<clever> pie_: looks like its a global var, -v increments it, --debug and --quiet set it to explicit levels...
<pie_> clever: yeah uhh the last time we peeked at this it wasnt pretty iirc?
<pie_> or. well. idk.
<clever> pie_: yeah, its not currently plumbed into the --option stuff
<pie_> the short version: would be nice if this was a thing, also would be nice if cli args didnt need to be special cased and we could jsut pass extra stuff somehow
<pie_> im going to leave to do some errands before i think of another channel to drop some more thoughts into..
<clever> pie_: https://github.com/cleverca22/nix-fork/blob/master/default.nix#L5-L7 is how ive delt with this problem before
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<samueldr> ah! an advantage of using cachix/install-nix-action rather than the nix docker image is how the new kind of github action can run multiple *things* on the same FS/instance
<samueldr> (I asked the other day what advantages installing nix had)
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