simplebench/results_to_text: improve view of the table
Move to generic format for floats and percentage for error.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201021145859.11201-19-vsementsov@virtuozzo.com>
Acked-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
diff --git a/scripts/simplebench/results_to_text.py b/scripts/simplebench/results_to_text.py
index 58d909f..479f7ac 100644
--- a/scripts/simplebench/results_to_text.py
+++ b/scripts/simplebench/results_to_text.py
@@ -16,11 +16,22 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
+import math
+
+
+def format_value(x, stdev):
+ stdev_pr = stdev / x * 100
+ if stdev_pr < 1.5:
+ # don't care too much
+ return f'{x:.2g}'
+ else:
+ return f'{x:.2g} ± {math.ceil(stdev_pr)}%'
+
def result_to_text(result):
"""Return text representation of bench_one() returned dict."""
if 'average' in result:
- s = '{:.2f} +- {:.2f}'.format(result['average'], result['stdev'])
+ s = format_value(result['average'], result['stdev'])
if 'n-failed' in result:
s += '\n({} failed)'.format(result['n-failed'])
return s
