Close LinuxPerf bench when done with it

Author: Zentrik

src/parameters.jl

@@ -24,13 +24,18 @@ function perf_available()
         return false
     end
 
+    bench = nothing
     try
         opts = LinuxPerf.parse_pstats_options([])
         groups = BenchmarkTools.LinuxPerf.set_default_spaces(opts.events, opts.spaces)
         bench = make_bench_threaded(groups; threads=opts.threads)
         return true
     catch
         return false
+    finally
+        if !isnothing(bench)
+            close(bench)
+        end
     end
 end