Revert "use global perf_allowed"

This reverts commit d6d502c22d7d0438b3151fd32d7eb6f83b73711f.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/benchmark.py b/src/benchmark.py
index 9e32160..4658e01 100644
--- a/src/benchmark.py
+++ b/src/benchmark.py
@@ -11,11 +11,9 @@ import subprocess
 from src.allocators import allocators
 
 
-perf_allowed = None
-
-
 class Benchmark (object):
 
+    perf_allowed = None
 
     defaults = {
         "name": "default_benchmark",
@@ -139,7 +137,7 @@ class Benchmark (object):
 
         # check if perf is allowed on this system
         if self.measure_cmd == self.defaults["measure_cmd"]:
-            if perf_allowed == None:
+            if self.perf_allowed == None:
                 res = subprocess.run(["perf", "stat", "ls"],
                                      stdout=None, stderr=subprocess.PIPE,
                                      universal_newlines=True)
@@ -148,7 +146,7 @@ class Benchmark (object):
                     print(res.stderr)
                     perf_allowed = False
 
-            if not perf_allowed:
+            if not self.perf_allowed:
                 print("Skipping", self.name, "because you don't have the",
                       "needed permissions to use perf")
                 return False