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#!/usr/bin/env python3
#
# Copyright 2023 Nordix Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import argparse
import csv
def load_metrics_table(filename):
with open(filename) as tsvFile:
csvreader = csv.DictReader(tsvFile, dialect="excel-tab")
table = {}
for source_row in csvreader:
method, count, sum_time = source_row['Method'], source_row['Count'], source_row['Sum']
table[method] = { 'Count': int(float(count)), 'Sum': float(sum_time) }
return table
def save_metrics_table(table, filename):
with open(filename, 'w', newline='') as outfile:
csvwriter = csv.writer(outfile, dialect="excel-tab")
csvwriter.writerow(["Method", "Count", "Sum"])
for method in table:
count, sum_time = table[method]['Count'], table[method]['Sum']
csvwriter.writerow([method, count, sum_time])
def subtract_metrics_tables(table, table_to_subtract):
result = {}
for method in table:
result[method] = table[method]
for method in table_to_subtract:
result[method]['Count'] = result[method]['Count'] - table_to_subtract[method]['Count']
result[method]['Sum'] = result[method]['Sum'] - table_to_subtract[method]['Sum']
return filter_null_metrics_from_metrics_table(result)
def filter_null_metrics_from_metrics_table(table):
result = {}
for method in table:
if table[method]['Count'] > 0:
result[method] = table[method]
return result
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument('-a', '--metrics-after',
required=True,
help='path to metrics table to subtract from',
dest='tsvpath_after',
type=str)
parser.add_argument('-b', '--metrics-before',
required=True,
help='path to metrics table to subtract',
dest='tsvpath_before',
type=str)
parser.add_argument('-o', '--output',
required=True,
help='path to output metrics table',
dest='outpath',
type=str)
args = parser.parse_args()
table1 = load_metrics_table(args.tsvpath_before)
table2 = load_metrics_table(args.tsvpath_after)
table_diff = subtract_metrics_tables(table2, table1)
save_metrics_table(table_diff, args.outpath)
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