[PATCH v2 7/8] simplebench/bench-backup: add --count and --no-initial-run

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

Add arguments to set number of test runs per table cell and to disable
initial run that is not counted in results.

It's convenient to set --count 1 --no-initial-run to fast run test
onece, and to set --count to some large enough number for good
precision of the results.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 scripts/simplebench/bench-backup.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/scripts/simplebench/bench-backup.py b/scripts/simplebench/bench-backup.py
index a2120fcbf0..519a985a7f 100755
--- a/scripts/simplebench/bench-backup.py
+++ b/scripts/simplebench/bench-backup.py
@@ -155,7 +155,9 @@ def bench(args):
                 'qemu-binary': path
             })
 
-    result = simplebench.bench(bench_func, test_envs, test_cases, count=3)
+    result = simplebench.bench(bench_func, test_envs, test_cases,
+                               count=args.count,
+                               initial_run = not args.no_initial_run)
     with open('results.json', 'w') as f:
         json.dump(result, f, indent=4)
     print(results_to_text(result))
@@ -211,4 +213,10 @@ def __call__(self, parser, namespace, values, option_string=None):
    both: generate two test cases for each src:dst pair''',
                    default='direct', choices=('direct', 'cached', 'both'))
 
+    p.add_argument('--count', type=int, default=3, help='''\
+Number of test runs per table cell''')
+
+    p.add_argument('--no-initial-run', action='store_true', help='''\
+Don't do initial run of test for each cell which doesn't count''')
+
     bench(p.parse_args())
-- 
2.29.2