Request policy Lookup time is more than 50ms about jcasbin HOT 11 CLOSED

# JMH version: 1.36
# VM version: JDK 17.0.6, OpenJDK 64-Bit Server VM, 17.0.6+10-LTS

Benchmark                                (total_policies)  Mode  Cnt     Score   Error  Units
BenchmarkBasicModel.benchmarkBasicModel               100  avgt          0.042          ms/op
BenchmarkBasicModel.benchmarkBasicModel              1000  avgt          0.343          ms/op
BenchmarkBasicModel.benchmarkBasicModel             10000  avgt          3.470          ms/op
BenchmarkBasicModel.benchmarkBasicModel            100000  avgt         39.378          ms/op
BenchmarkBasicModel.benchmarkBasicModel           1000000  avgt        406.477          ms/op
BenchmarkBasicModel.benchmarkBasicModel          10000000  avgt       4322.212          ms/op

import java.util.Random;
import java.util.concurrent.TimeUnit;
import org.casbin.jcasbin.main.Enforcer;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Level;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Threads;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;

@State(Scope.Benchmark)
@Fork(value = 0) // change value to 0 to debug
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@BenchmarkMode(Mode.AverageTime)
@Warmup(iterations = 1)
@Measurement(iterations = 1)
public class BenchmarkBasicModel {

	private static final Random random = new Random();

	@Param({"100", "1000", "10000", "100000", "1000000", "10000000"})
	private static int total_policies = 1;
	private static int randomIdx;

	private static Enforcer e;

	@Setup(Level.Iteration)
	public static void setUp() {
		e = new Enforcer("examples/basic_model.conf", "examples/basic_policy.csv", false);
		e.enableAutoBuildRoleLinks(false);
		for (int i=0; i< total_policies; i++) {
			e.addPolicy(String.format("user%d", i), String.format("data%d", i/10), "read");
		}
		e.buildRoleLinks();
	}

	@Setup(Level.Invocation)
	public static void setIteration() {
		randomIdx = random.nextInt(total_policies);
	}

	@Threads(1)
	@Benchmark
	public static void benchmarkBasicModel() {
		e.enforce(String.format("user%d", randomIdx), String.format("data%d", randomIdx/10), "read");
	}

	public static void main(String args[]) throws RunnerException {
		Options options = new OptionsBuilder()
			.include(BenchmarkBasicModel.class.getSimpleName())
			.exclude("Perf")
			.exclude("random")
			.build();
		new Runner(options).run();
	}
}

Benchmark                                          Mode  Cnt   Score    Error       Units
BenchmarkRBACModelLarge.benchmarkRBACModelLarge   avgt    100    15.023  ± 0.416  ms/op

Benchmark                                                          Mode  Cnt   Score   Error  Units
BenchmarkRBACModelLarge.benchmarkRBACModelLarge_User0_Data0        avgt        0.098          ms/op
BenchmarkRBACModelLarge.benchmarkRBACModelLarge_User50000_Data500  avgt        8.409          ms/op
BenchmarkRBACModelLarge.benchmarkRBACModelLarge_User99999_Data999  avgt       16.477          ms/op

@Benchmark
	public static void benchmarkRBACModelLarge_User0_Data0() {
		e.enforce("user0", "data0", "read");
	}

	@Benchmark
	public static void benchmarkRBACModelLarge_User50000_Data500() {
		e.enforce("user50000", "data500", "read");
	}

	@Benchmark
	public static void benchmarkRBACModelLarge_User99999_Data999() {
		e.enforce("user99999", "data999", "read");
	}