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{ depot, pkgs, lib, ... }:
let
mkNixpkgsEvalCheck = attrset: expectedPath: {
label = ":nix: evaluate nixpkgs.${attrset} in tvix";
needsOutput = true;
command = pkgs.writeShellScript "tvix-eval-${builtins.replaceStrings [".drv"] ["-drv"] attrset}" ''
TVIX_OUTPUT=$(result/bin/tvix -E '(import ${pkgs.path} {}).${attrset}')
EXPECTED='${/* the verbatim expected Tvix output: */ "=> \"${builtins.unsafeDiscardStringContext expectedPath}\" :: string"}'
echo "Tvix output: ''${TVIX_OUTPUT}"
if [ "$TVIX_OUTPUT" != "$EXPECTED" ]; then
echo "Correct would have been ''${EXPECTED}"
exit 1
fi
echo "Output was correct."
'';
};
benchmark-gnutime-format-string =
description:
"Benchmark: " +
(builtins.toJSON {
"${description}" = {
kbytes = "%M";
system = "%S";
user = "%U";
};
});
in
(depot.tvix.crates.workspaceMembers.tvix-cli.build.override {
runTests = true;
}).overrideAttrs (finalAttrs: previousAttrs:
let
tvix-cli = finalAttrs.finalPackage;
# You can run the benchmark with a simple `nix run`, like:
#
# nix run -f . tvix.cli.meta.ci.extraSteps.benchmark-nixpkgs-cross-hello-outpath
#
# TODO(amjoseph): store these results someplace more durable, like git trailers
#
mkExprBenchmark = { expr, description }:
let name = "tvix-cli-benchmark-${description}"; in
(pkgs.writeShellScriptBin name ''
${lib.escapeShellArgs [
"${pkgs.time}/bin/time"
"--format" "${benchmark-gnutime-format-string description}"
"${tvix-cli}/bin/tvix"
"--no-warnings"
"-E" expr
]}
'').overrideAttrs (finalAttrs: previousAttrs: {
passthru = (previousAttrs.passthru or { }) // {
ci = {
label = ":nix: benchmark ${description} in tvix";
needsOutput = true;
command = "${finalAttrs.finalPackage}/bin/${finalAttrs.meta.mainProgram}";
};
};
});
mkNixpkgsBenchmark = attrpath:
mkExprBenchmark {
description = builtins.replaceStrings [ ".drv" ] [ "-drv" ] attrpath;
expr = "(import ${pkgs.path} {}).${attrpath}";
};
benchmarks = {
benchmark-hello = (mkNixpkgsBenchmark "hello.outPath");
benchmark-cross-hello = (mkNixpkgsBenchmark "pkgsCross.aarch64-multiplatform.hello.outPath");
benchmark-firefox = (mkNixpkgsBenchmark "firefox.outPath");
benchmark-cross-firefox = (mkNixpkgsBenchmark "pkgsCross.aarch64-multiplatform.firefox.outPath");
# Example used for benchmarking LightSpan::Delayed in commit bf286a54bc2ac5eeb78c3d5c5ae66e9af24d74d4
benchmark-nixpkgs-attrnames = (mkExprBenchmark { expr = "builtins.length (builtins.attrNames (import ${pkgs.path} {}))"; description = "nixpkgs-attrnames"; });
};
in
{
meta = {
ci.extraSteps = {
eval-nixpkgs-stdenv-drvpath = (mkNixpkgsEvalCheck "stdenv.drvPath" pkgs.stdenv.drvPath);
eval-nixpkgs-stdenv-outpath = (mkNixpkgsEvalCheck "stdenv.outPath" pkgs.stdenv.outPath);
eval-nixpkgs-hello-outpath = (mkNixpkgsEvalCheck "hello.outPath" pkgs.hello.outPath);
eval-nixpkgs-firefox-outpath = (mkNixpkgsEvalCheck "firefox.outPath" pkgs.firefox.outPath);
eval-nixpkgs-firefox-drvpath = (mkNixpkgsEvalCheck "firefox.drvPath" pkgs.firefox.drvPath);
eval-nixpkgs-cross-stdenv-outpath = (mkNixpkgsEvalCheck "pkgsCross.aarch64-multiplatform.stdenv.outPath" pkgs.pkgsCross.aarch64-multiplatform.stdenv.outPath);
eval-nixpkgs-cross-hello-outpath = (mkNixpkgsEvalCheck "pkgsCross.aarch64-multiplatform.hello.outPath" pkgs.pkgsCross.aarch64-multiplatform.hello.outPath);
};
ci.targets = builtins.attrNames benchmarks;
};
# Expose benchmarks as standard CI targets.
passthru = benchmarks;
})
|
