https://github.com/int-index/ghc-load-slow

https://github.com/int-index/ghc-load-slow

Last synced: 15 days ago
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• Host: GitHub
• URL: https://github.com/int-index/ghc-load-slow
• Owner: int-index
• Created: 2023-06-01T16:38:32.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-06-02T17:53:31.000Z (over 1 year ago)
• Last Synced: 2024-11-07T03:48:43.239Z (2 months ago)
• Language: Haskell
• Size: 48.8 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## Steps to reproduce with `nix`:

```

$ nix build

$ result/bin/gls-exe

```

Results:

```

First run:

Set up session: 0.002155565000

Set context: 0.031667107000

Run decls: 3.711375929000

Compile expr: 2.130753714000

ghcLoadApp: 5.876013324000

Second run:

Set up session: 0.001424016000

Set context: 0.013176788000

Run decls: 0.012871536000

Compile expr: 0.002616573000

ghcLoadApp: 0.030115064000

```

The first run is two orders of magnitude slower.

## Steps to reproduce without `nix`:

```

; ghcup install ghc 9.6.2

; ghcup set ghc 9.6.2

; git clone https://github.com/int-index/ghc-load-slow.git

; cd ghc-load-slow

; CABAL_DIR="$(pwd)/platform-cabal/" cabal install --lib gls-platform

; GLS_PKGDB="$(pwd)/platform-cabal/store/ghc-9.6.2/package.db" GLS_LIBDIR="$HOME/.ghcup/ghc/9.6.2/lib/ghc-9.6.2/lib/" cabal run gls-exe

```

You will need `pkg-config` and `libsdl2-dev` installed.