Add LMDB system library benchmark

Author: bp-alex

.github/workflows/lmdb-benchmarks.yml

@@ -0,0 +1,48 @@
+name: LMDB Benchmarks
+
+on:
+  # Manual trigger
+  workflow_dispatch:
+
+  # Daily at 4am UTC (offset from other workflows)
+  schedule:
+    - cron: '0 4 * * *'
+
+jobs:
+  benchmark:
+    name: Run LMDB Benchmarks
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v5
+
+    - name: Set up JDK
+      uses: actions/setup-java@v5
+      with:
+        java-version: '25'
+        distribution: 'temurin'
+        cache: maven
+
+    - name: Build benchmarks JAR
+      run: mvn -B clean package -DskipTests
+
+    - name: Install dependencies for report generation and LMDB compilation
+      run: sudo apt-get update && sudo apt-get install -y gnuplot jq gcc make
+
+    - name: Run LMDB benchmarks (smoketest mode, compiles LMDB libraries automatically)
+      run: ./run-lmdb.sh smoketest
+      timeout-minutes: 60
+
+    - name: Generate LMDB report
+      run: ./report-lmdb.sh
+
+    - name: Install wrangler
+      run: npm install -g wrangler
+
+    - name: Publish results to Cloudflare Pages
+      run: ./publish-results.sh
+      env:
+        CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+        CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}

.gitignore

@@ -18,4 +18,5 @@ dependency-reduced-pom.xml
 /log.txt
 /bisect
 /dev
+/lmdb
 *.backup

README.md

@@ -1,5 +1,6 @@
 [![Library Benchmarks](https://github.com/lmdbjava/benchmarks/workflows/Library%20Benchmarks/badge.svg)](https://github.com/lmdbjava/benchmarks/actions)
 [![Version Benchmarks](https://github.com/lmdbjava/benchmarks/workflows/Version%20Benchmarks/badge.svg)](https://github.com/lmdbjava/benchmarks/actions)
+[![LMDB Benchmarks](https://github.com/lmdbjava/benchmarks/workflows/LMDB%20Benchmarks/badge.svg)](https://github.com/lmdbjava/benchmarks/actions)
 [![License](https://img.shields.io/hexpm/l/plug.svg?maxAge=2592000)](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
 # LmdbJava Benchmarks
@@ -8,6 +9,7 @@
 
 - **Library Comparisons**: [Full Benchmark](https://libraries-benchmark.lmdbjava.org) | [Smoketest](https://libraries-smoketest.lmdbjava.org)
 - **Version Regressions**: [Full Benchmark](https://versions-benchmark.lmdbjava.org) | [Smoketest](https://versions-smoketest.lmdbjava.org)
+- **LMDB Benchmarks**: [Full Benchmark](https://lmdb-benchmark.lmdbjava.org) | [Smoketest](https://lmdb-smoketest.lmdbjava.org)
 - **Historical**: [2016 Results](https://github.com/lmdbjava/benchmarks/blob/master/results/20160710/README.md)
 
 This is a [JMH](http://openjdk.java.net/projects/code-tools/jmh/) benchmark
@@ -134,6 +136,31 @@ rm -rf target/benchmark-vers
 ./run-vers.sh benchmark
 ```
 
+#### LMDB Benchmarks
+
+Use the `run-lmdb.sh` script to test LmdbJava (master) performance across different LMDB library versions:
+
+```bash
+# Quick smoke test (1K entries, fast verification)
+./run-lmdb.sh smoketest
+
+# Full benchmark using 25% of system RAM (default)
+./run-lmdb.sh benchmark
+
+# Full benchmark using 50% of system RAM
+./run-lmdb.sh benchmark 50
+```
+
+This tests LmdbJava master against 9 different LMDB library versions (0.9.18-0.9.33) to isolate LMDB native library performance characteristics from LmdbJava wrapper code.
+Results are written to `target/benchmark-lmdb/`.
+
+**Resumption:** The script skips completed LMDB versions by checking for existing result files. For a fresh run, remove the output directory:
+
+```bash
+rm -rf target/benchmark-lmdb
+./run-lmdb.sh benchmark
+```
+
 #### Running Both Benchmark Suites
 
 Use the `run-both.sh` script to run both library and version benchmarks sequentially (designed for overnight runs):
@@ -162,6 +189,12 @@ After running version regression tests, generate a version comparison report:
 ./report-vers.sh
 ```
 
+After running LMDB benchmarks, generate an LMDB performance report:
+
+```bash
+./report-lmdb.sh
+```
+
 Reports generate:
 - `target/benchmark/README.md` - Full markdown report with charts
 - `target/benchmark/index.html` - HTML viewer with embedded charts (open in browser)

publish-results.sh

@@ -64,9 +64,12 @@ if grep -q "## LmdbJava Library Comparison Benchmarks" "${README}"; then
 elif grep -q "## LmdbJava Performance Regression Testing" "${README}"; then
   BENCH_TYPE="versions"
   echo "  Detected: Version regression benchmarks"
+elif grep -q "## LMDB Library Performance Analysis" "${README}"; then
+  BENCH_TYPE="lmdb"
+  echo "  Detected: LMDB library benchmarks"
 else
   echo "ERROR: Could not determine benchmark type from ${README}"
-  echo "Expected heading: '## LmdbJava Library Comparison Benchmarks' or '## LmdbJava Performance Regression Testing'"
+  echo "Expected heading: '## LmdbJava Library Comparison Benchmarks', '## LmdbJava Performance Regression Testing', or '## LMDB Library Performance Analysis'"
   exit 1
 fi