Benchmark GeoTIFF read speeds

.github/workflows/bench.yml

@@ -0,0 +1,43 @@
+name: Benchmarks
+
+on:
+  push:
+    branches: ["main"]
+  # Run in PRs but only if the PR has the 'run/benchmark' label
+  pull_request:
+    types: [opened, reopened, labeled, synchronize]
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+  release:
+    types: [published]
+
+jobs:
+  benchmarks:
+    runs-on: ubuntu-22.04
+    if: github.repository == 'georust/geotiff' && (github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'run/benchmark'))
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Download and extract files
+        run: |
+          wget https://s3.us-east-2.amazonaws.com/geotiff-benchmark-sample-files/geotiff_sample_files.tar.gz -P resources
+          tar --extract --verbose --file resources/geotiff_sample_files.tar.gz
+
+      - name: Setup rust toolchain, cache and cargo-codspeed binary
+        uses: moonrepo/setup-rust@v1
+        with:
+          channel: stable
+          cache: false
+          cache-target: release
+          bins: cargo-codspeed
+
+      - name: Build the benchmark target(s)
+        run: cargo codspeed build
+
+      - name: Run the benchmarks
+        uses: CodSpeedHQ/action@v3
+        with:
+          run: cargo codspeed run

.gitignore

@@ -10,3 +10,6 @@
 **/*.rs.bk
 /.idea
 /resources/large_tif
+
+# Data files
+resources/*_50m.tif