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| author | Solène Rapenne <solene.rapenne@tweag.io> | 2022-09-23 11:21:19 +0200 |
|---|---|---|
| committer | Solène Rapenne <solene.rapenne@tweag.io> | 2022-09-23 11:21:19 +0200 |
| commit | e04b38f789ff2fb3a93f4cf5783b23430e5d2797 (patch) | |
| tree | ff109e59796467ecb73898b05f9c2fccadb5fce0 | |
| parent | fbd0a6c6e2e87f6679fe5cabaddaa877cf3e5a90 (diff) | |
add ccacheStdenv
when using ccache, rebuild time has been measured
89% faster while not slowing the speed of cold builds
| -rw-r--r-- | doc/manual/src/contributing/hacking.md | 5 | ||||
| -rw-r--r-- | flake.nix | 2 |
2 files changed, 5 insertions, 2 deletions
diff --git a/doc/manual/src/contributing/hacking.md b/doc/manual/src/contributing/hacking.md index 59ce5cac7..e97b40cdd 100644 --- a/doc/manual/src/contributing/hacking.md +++ b/doc/manual/src/contributing/hacking.md @@ -42,7 +42,7 @@ $ nix develop ``` To get a shell with a different compilation environment (e.g. stdenv, -gccStdenv, clangStdenv, clang11Stdenv): +gccStdenv, clangStdenv, clang11Stdenv, ccacheStdenv): ```console $ nix-shell -A devShells.x86_64-linux.clang11StdenvPackages @@ -54,6 +54,9 @@ or if you have a flake-enabled nix: $ nix develop .#clang11StdenvPackages ``` +Note: you can use `ccacheStdenv` to drastically improve rebuild +time. By default, ccache keeps artifacts in `~/.cache/ccache/`. + To build Nix itself in this shell: ```console @@ -23,7 +23,7 @@ crossSystems = [ "armv6l-linux" "armv7l-linux" ]; - stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" "libcxxStdenv" ]; + stdenvs = [ "gccStdenv" "clangStdenv" "clang11Stdenv" "stdenv" "libcxxStdenv" "ccacheStdenv" ]; forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system); forAllSystemsAndStdenvs = f: forAllSystems (system: |