diff --git a/lld/utils/benchmark.py b/lld/utils/benchmark.py
--- a/lld/utils/benchmark.py
+++ b/lld/utils/benchmark.py
@@ -24,6 +24,7 @@
 parser = argparse.ArgumentParser()
 parser.add_argument('benchmark_directory')
 parser.add_argument('--runs', type=int, default=10)
+parser.add_argument('--lld', help='Path to the lld binary', default='../ld.lld')
 parser.add_argument('--wrapper', default='')
 parser.add_argument('--machine', required=True)
 parser.add_argument('--revision', required=True)
@@ -109,7 +110,7 @@
     os.chdir(bench.directory)
     suffix = '-%s' % bench.variant if bench.variant else ''
     response = 'response' + suffix + '.txt'
-    ret = perf(['../ld.lld', '@' + response, '-o', 't'] + thread_arg)
+    ret = perf([args.lld, '@' + response, '-o', 't'] + thread_arg)
     ret['name'] = str(bench)
     os.chdir('..')
     return ret
@@ -122,6 +123,7 @@
         'format_version' : '2',
         'machine' : { 'name' : args.machine },
         'run' : {
+            'lld_name': os.path.basename(args.lld),
             'end_time' : start,
             'start_time' : end,
             'llvm_project_revision': args.revision