Close perf when done to prevent too many files open error

Author: Zentrik

src/execution.jl

@@ -594,19 +594,25 @@ function generate_benchmark_definition(
                     __linux_perf_bench = BenchmarkTools.LinuxPerf.make_bench_threaded(
                         __linux_perf_groups; threads=$(params.linux_perf_options.threads)
                     )
-                    BenchmarkTools.LinuxPerf.enable!(__linux_perf_bench)
-                    # We'll just run it one time.
-                    __return_val_2 = $(invocation)
-                    BenchmarkTools.LinuxPerf.disable!(__linux_perf_bench)
-                    # trick the compiler not to eliminate the code
-                    if rand() < 0
-                        __linux_perf_stats = __return_val_2
-                    else
-                        __linux_perf_stats = BenchmarkTools.LinuxPerf.Stats(
-                            __linux_perf_bench
-                        )
+                    try
+                        BenchmarkTools.LinuxPerf.enable!(__linux_perf_bench)
+                        # We'll just run it one time.
+                        __return_val_2 = $(invocation)
+                        BenchmarkTools.LinuxPerf.disable!(__linux_perf_bench)
+                        # trick the compiler not to eliminate the code
+                        if rand() < 0
+                            __linux_perf_stats = __return_val_2
+                        else
+                            __linux_perf_stats = BenchmarkTools.LinuxPerf.Stats(
+                                __linux_perf_bench
+                            )
+                        end
+                    catch
+                        rethrow()
+                    finally
+                        close(__linux_perf_bench)
+                        $(teardown)
                     end
-                    $(teardown)
                 else
                     __return_val_2 = nothing
                     __linux_perf_stats = nothing