From 75c7a28192fc9b378fe818e699359ff23d5d8812 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thierry=20Yg=C3=A9?= Date: Sat, 26 Oct 2024 11:41:05 +0200 Subject: [PATCH] feat: #2955 Allow to exclude some statistics from aggregation --- locust/argument_parser.py | 8 ++++++++ locust/env.py | 9 +++++++-- locust/main.py | 1 + locust/stats.py | 17 +++++++++++++++-- locust/test/test_parser.py | 5 +++++ locust/test/test_stats.py | 10 ++++++++++ 6 files changed, 46 insertions(+), 4 deletions(-) diff --git a/locust/argument_parser.py b/locust/argument_parser.py index c0e490ba9b..e304a72006 100644 --- a/locust/argument_parser.py +++ b/locust/argument_parser.py @@ -680,6 +680,14 @@ def setup_parser_arguments(parser): action="store_true", help="Prints the final stats in JSON format to stdout. Useful for parsing the results in other programs/scripts. Use together with --headless and --skip-log for an output only with the json data.", ) + stats_group.add_argument( + "--exclude-from-aggregation", + type=str, + default="", + dest="exclude_from_aggregation", + env_var="LOCUST_EXCLUDE_FROM_AGGREGATION", + help="Exclude log method or name that match the value. Regexp is allowed.", + ) log_group = parser.add_argument_group("Logging options") log_group.add_argument( diff --git a/locust/env.py b/locust/env.py index 9ba161c684..864730a85e 100644 --- a/locust/env.py +++ b/locust/env.py @@ -1,6 +1,7 @@ from __future__ import annotations from operator import methodcaller +from re import Pattern from typing import Callable, TypeVar from configargparse import Namespace @@ -27,6 +28,7 @@ def __init__( tags: list[str] | None = None, locustfile: str | None = None, exclude_tags: list[str] | None = None, + exclude_from_aggregation: str | Pattern[str] | None = None, events: Events | None = None, host: str | None = None, reset_stats=False, @@ -69,7 +71,8 @@ def __init__( """If set, only tasks that are tagged by tags in this list will be executed. Leave this as None to use the one from parsed_options""" self.exclude_tags = exclude_tags """If set, only tasks that aren't tagged by tags in this list will be executed. Leave this as None to use the one from parsed_options""" - self.stats = RequestStats() + self.exclude_from_aggregation = exclude_from_aggregation + self.stats = RequestStats(exclude_from_aggregation=exclude_from_aggregation) """Reference to RequestStats instance""" self.host = host """Base URL of the target system""" @@ -154,7 +157,9 @@ def create_worker_runner(self, master_host: str, master_port: int) -> WorkerRunn """ # Create a new RequestStats with use_response_times_cache set to False to save some memory # and CPU cycles, since the response_times_cache is not needed for Worker nodes - self.stats = RequestStats(use_response_times_cache=False) + self.stats = RequestStats( + use_response_times_cache=False, exclude_from_aggregation=self.exclude_from_aggregation + ) return self._create_runner( WorkerRunner, master_host=master_host, diff --git a/locust/main.py b/locust/main.py index c48d679c4c..746193bbc5 100644 --- a/locust/main.py +++ b/locust/main.py @@ -89,6 +89,7 @@ def create_environment( available_user_classes=available_user_classes, available_shape_classes=available_shape_classes, available_user_tasks=available_user_tasks, + exclude_from_aggregation=options.exclude_from_aggregation, ) diff --git a/locust/stats.py b/locust/stats.py index 0a38b77c77..c687608b3b 100644 --- a/locust/stats.py +++ b/locust/stats.py @@ -5,6 +5,7 @@ import json import logging import os +import re import signal import time from abc import abstractmethod @@ -13,6 +14,7 @@ from copy import copy from html import escape from itertools import chain +from re import Pattern from types import FrameType from typing import TYPE_CHECKING, Any, Callable, NoReturn, Protocol, TypedDict, TypeVar, cast @@ -184,14 +186,17 @@ class RequestStats: Class that holds the request statistics. Accessible in a User from self.environment.stats """ - def __init__(self, use_response_times_cache=True): + def __init__(self, use_response_times_cache=True, exclude_from_aggregation: str | Pattern[str] = ""): """ :param use_response_times_cache: The value of use_response_times_cache will be set for each StatsEntry() when they are created. Settings it to False saves some memory and CPU cycles which we can do on Worker nodes where the response_times_cache is not needed. + :param exclude_from_aggregation: Define which logs method or name should be excluded from "Aggretated" + stats. Default will accept all the logs. Regexp is allowed. """ self.use_response_times_cache = use_response_times_cache + self.exclude_from_aggregation = exclude_from_aggregation self.entries: dict[tuple[str, str], StatsEntry] = EntriesDict(self) self.errors: dict[str, StatsError] = {} self.total = StatsEntry(self, "Aggregated", None, use_response_times_cache=self.use_response_times_cache) @@ -217,8 +222,16 @@ def last_request_timestamp(self): def start_time(self): return self.total.start_time + def exclude_from_total(self, method: str, name: str): + if self.exclude_from_aggregation: + found_in_method = re.search(self.exclude_from_aggregation, method) + found_in_name = re.search(self.exclude_from_aggregation, name) + return found_in_method or found_in_name + return False + def log_request(self, method: str, name: str, response_time: int, content_length: int) -> None: - self.total.log(response_time, content_length) + if not self.exclude_from_total(method, name): + self.total.log(response_time, content_length) self.entries[(name, method)].log(response_time, content_length) def log_error(self, method: str, name: str, error: Exception | str | None) -> None: diff --git a/locust/test/test_parser.py b/locust/test/test_parser.py index a76cc9d7fb..50e6efa4f2 100644 --- a/locust/test/test_parser.py +++ b/locust/test/test_parser.py @@ -109,6 +109,8 @@ def test_parse_options(self): "-t", "5m", "--reset-stats", + "--exclude-from-aggregation", + "CUSTOM", "--stop-timeout", "5", "MyUserClass", @@ -120,6 +122,7 @@ def test_parse_options(self): self.assertEqual("5m", options.run_time) self.assertTrue(options.reset_stats) self.assertEqual("5", options.stop_timeout) + self.assertEqual("CUSTOM", options.exclude_from_aggregation) self.assertEqual(["MyUserClass"], options.user_classes) # check default arg self.assertEqual(8089, options.web_port) @@ -132,6 +135,7 @@ def test_parse_options_from_env(self): os.environ["LOCUST_RESET_STATS"] = "true" os.environ["LOCUST_STOP_TIMEOUT"] = "5" os.environ["LOCUST_USER_CLASSES"] = "MyUserClass" + os.environ["LOCUST_EXCLUDE_FROM_AGGREGATION"] = "CUSTOM" options = parse_options(args=[]) self.assertEqual("locustfile.py", options.locustfile) @@ -141,6 +145,7 @@ def test_parse_options_from_env(self): self.assertTrue(options.reset_stats) self.assertEqual("5", options.stop_timeout) self.assertEqual(["MyUserClass"], options.user_classes) + self.assertEqual("CUSTOM", options.exclude_from_aggregation) # check default arg self.assertEqual(8089, options.web_port) diff --git a/locust/test/test_stats.py b/locust/test/test_stats.py index 71c38d1537..9f8210e9e0 100644 --- a/locust/test/test_stats.py +++ b/locust/test/test_stats.py @@ -98,6 +98,16 @@ def test_total_rps(self): self.assertAlmostEqual(s2.total_rps, 1 / 5.0) self.assertEqual(self.stats.total.total_rps, 10 / 5.0) + def test_total_exclude_from_aggregation(self): + before_count = self.stats.num_requests + # First without exclusion + self.stats.log_request("CUSTOM", "some_name", 1337, 1337) + self.assertEqual(self.stats.num_requests, before_count + 1) + # Second with exclusion + self.stats.exclude_from_aggregation = r"CUSTOM" + self.stats.log_request("CUSTOM", "some_name", 1337, 1337) + self.assertEqual(self.stats.num_requests, before_count + 1) + def test_rps_less_than_one_second(self): s = StatsEntry(self.stats, "percentile_test", "GET") for i in range(10):