refactor(users/glittershark): Rename to grfn r/2485

Rename my //users directory and all places that refer to glittershark to
grfn, including nix references and documentation.

This may require some extra attention inside of gerrit's database after
it lands to allow me to actually push things.

Change-Id: I4728b7ec2c60024392c1c1fa6e0d4a59b3e266fa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2933
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>

4 files changed, 90 insertions, 0 deletions

diff --git a/users/grfn/xanthous/bench/Bench.hs b/users/grfn/xanthous/bench/Bench.hs
new file mode 100644
index 000000000000..5889618ee432
--- /dev/null
+++ b/users/grfn/xanthous/bench/Bench.hs
@@ -0,0 +1,12 @@
+--------------------------------------------------------------------------------
+module Main where
+--------------------------------------------------------------------------------
+import Bench.Prelude
+--------------------------------------------------------------------------------
+import qualified Xanthous.RandomBench
+import qualified Xanthous.Generators.UtilBench
+
+main :: IO ()
+main = defaultMain
+  [ Xanthous.Generators.UtilBench.benchmark
+  ]
diff --git a/users/grfn/xanthous/bench/Bench/Prelude.hs b/users/grfn/xanthous/bench/Bench/Prelude.hs
new file mode 100644
index 000000000000..c553abd6d5d0
--- /dev/null
+++ b/users/grfn/xanthous/bench/Bench/Prelude.hs
@@ -0,0 +1,9 @@
+--------------------------------------------------------------------------------
+module Bench.Prelude
+  ( module Xanthous.Prelude
+  , module Criterion.Main
+  ) where
+--------------------------------------------------------------------------------
+import Xanthous.Prelude
+import Criterion.Main
+--------------------------------------------------------------------------------
diff --git a/users/grfn/xanthous/bench/Xanthous/Generators/UtilBench.hs b/users/grfn/xanthous/bench/Xanthous/Generators/UtilBench.hs
new file mode 100644
index 000000000000..56310e691c33
--- /dev/null
+++ b/users/grfn/xanthous/bench/Xanthous/Generators/UtilBench.hs
@@ -0,0 +1,37 @@
+--------------------------------------------------------------------------------
+module Xanthous.Generators.UtilBench (benchmark, main) where
+--------------------------------------------------------------------------------
+import           Bench.Prelude
+--------------------------------------------------------------------------------
+import           Data.Array.IArray
+import           Data.Array.Unboxed
+import           System.Random (getStdGen)
+--------------------------------------------------------------------------------
+import           Xanthous.Generators.Util
+import qualified Xanthous.Generators.CaveAutomata as CaveAutomata
+import           Xanthous.Data (Dimensions'(..))
+--------------------------------------------------------------------------------
+
+main :: IO ()
+main = defaultMain [benchmark]
+
+--------------------------------------------------------------------------------
+
+benchmark :: Benchmark
+benchmark = bgroup "Generators.Util"
+  [ bgroup "floodFill"
+    [ env (NFWrapper <$> cells) $ \(NFWrapper ir) ->
+        bench "checkerboard" $ nf (floodFill ir) (1,0)
+    ]
+  ]
+  where
+    cells :: IO Cells
+    cells = CaveAutomata.generate
+      CaveAutomata.defaultParams
+      (Dimensions 50 50)
+      <$> getStdGen
+
+newtype NFWrapper a = NFWrapper a
+
+instance NFData (NFWrapper a) where
+  rnf (NFWrapper x) = x `seq` ()
diff --git a/users/grfn/xanthous/bench/Xanthous/RandomBench.hs b/users/grfn/xanthous/bench/Xanthous/RandomBench.hs
new file mode 100644
index 000000000000..fae4af92a7a5
--- /dev/null
+++ b/users/grfn/xanthous/bench/Xanthous/RandomBench.hs
@@ -0,0 +1,32 @@
+--------------------------------------------------------------------------------
+module Xanthous.RandomBench (benchmark, main) where
+--------------------------------------------------------------------------------
+import Bench.Prelude
+--------------------------------------------------------------------------------
+import Control.Parallel.Strategies
+import Control.Monad.Random
+--------------------------------------------------------------------------------
+import Xanthous.Random
+--------------------------------------------------------------------------------
+
+main :: IO ()
+main = defaultMain [benchmark]
+
+--------------------------------------------------------------------------------
+
+benchmark :: Benchmark
+benchmark = bgroup "Random"
+  [ bgroup "chooseSubset"
+    [ bench "serially" $
+      nf (evalRand $ chooseSubset (0.5 :: Double) [1 :: Int ..1000000])
+         (mkStdGen 1234)
+    ]
+  , bgroup "choose weightedBy"
+    [ bench "serially" $
+      nf (evalRand
+          . choose
+          . weightedBy (\n -> product [n, pred n .. 1])
+          $ [1 :: Int ..1000000])
+         (mkStdGen 1234)
+    ]
+  ]