diff options
| author | schererleander <leander@schererleander.de> | 2026-01-20 08:34:54 +0100 |
|---|---|---|
| committer | schererleander <leander@schererleander.de> | 2026-01-20 08:34:54 +0100 |
| commit | 85ea4e995a75abe061f6fc375ea0481084dddd43 (patch) | |
| tree | 7eb5d57653ecd8f041aeac4e68d7d554c1168681 /libraries/ESP_Async_WebServer/examples/PerfTests | |
Diffstat (limited to 'libraries/ESP_Async_WebServer/examples/PerfTests')
| -rw-r--r-- | libraries/ESP_Async_WebServer/examples/PerfTests/PerfTests.ino | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/libraries/ESP_Async_WebServer/examples/PerfTests/PerfTests.ino b/libraries/ESP_Async_WebServer/examples/PerfTests/PerfTests.ino new file mode 100644 index 0000000..6467d2c --- /dev/null +++ b/libraries/ESP_Async_WebServer/examples/PerfTests/PerfTests.ino @@ -0,0 +1,243 @@ +// SPDX-License-Identifier: LGPL-3.0-or-later +// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov + +// +// Perf tests +// + +#include <Arduino.h> +#ifdef ESP32 +#include <AsyncTCP.h> +#include <WiFi.h> +#elif defined(ESP8266) +#include <ESP8266WiFi.h> +#include <ESPAsyncTCP.h> +#elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350) +#include <RPAsyncTCP.h> +#include <WiFi.h> +#endif + +#include <ESPAsyncWebServer.h> + +static const char *htmlContent PROGMEM = R"( +<!DOCTYPE html> +<html> +<head> + <title>Sample HTML</title> +</head> +<body> + <h1>Hello, World!</h1> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> + <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.</p> +</body> +</html> +)"; + +static const size_t htmlContentLength = strlen_P(htmlContent); +static constexpr char characters[] = "0123456789ABCDEF"; +static size_t charactersIndex = 0; + +static AsyncWebServer server(80); +static AsyncEventSource events("/events"); + +static volatile size_t requests = 0; + +void setup() { + Serial.begin(115200); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); +#endif + + // Pauses in the request parsing phase + // + // autocannon -c 32 -w 32 -a 96 -t 30 --renderStatusCodes -m POST -H "Content-Type: application/json" -b '{"foo": "bar"}' http://192.168.4.1/delay + // + // curl -v -X POST -H "Content-Type: application/json" -d '{"game": "test"}' http://192.168.4.1/delay + // + server.onNotFound([](AsyncWebServerRequest *request) { + requests = requests + 1; + if (request->url() == "/delay") { + request->send(200, "application/json", "{\"status\":\"OK\"}"); + } else { + request->send(404, "text/plain", "Not found"); + } + }); + server.onRequestBody([](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) { + if (request->url() == "/delay") { + delay(3000); + } + }); + + // HTTP endpoint + // + // > brew install autocannon + // > autocannon -c 10 -w 10 -d 20 http://192.168.4.1 + // > autocannon -c 16 -w 16 -d 20 http://192.168.4.1 + // + server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) { + // need to cast to uint8_t* + // if you do not, the const char* will be copied in a temporary String buffer + requests = requests + 1; + request->send(200, "text/html", (uint8_t *)htmlContent, htmlContentLength); + }); + + // IMPORTANT - DO NOT WRITE SUCH CODE IN PRODUCTON ! + // + // This example simulates the slowdown that can happen when: + // - downloading a huge file from sdcard + // - doing some file listing on SDCard because it is horribly slow to get a file listing with file stats on SDCard. + // So in both cases, ESP would deadlock or TWDT would trigger. + // + // This example simulats that by slowing down the chunk callback: + // - d=2000 is the delay in ms in the callback + // - l=10000 is the length of the response + // + // time curl -N -v -G -d 'd=2000' -d 'l=10000' http://192.168.4.1/slow.html --output - + // + server.on("/slow.html", HTTP_GET, [](AsyncWebServerRequest *request) { + requests = requests + 1; + uint32_t d = request->getParam("d")->value().toInt(); + uint32_t l = request->getParam("l")->value().toInt(); + Serial.printf("d = %" PRIu32 ", l = %" PRIu32 "\n", d, l); + AsyncWebServerResponse *response = request->beginChunkedResponse("text/html", [d, l](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + Serial.printf("%u\n", index); + // finished ? + if (index >= l) { + return 0; + } + + // slow down the task to simulate some heavy processing, like SD card reading + delay(d); + + memset(buffer, characters[charactersIndex], 256); + charactersIndex = (charactersIndex + 1) % sizeof(characters); + return 256; + }); + + request->send(response); + }); + + // SSS endpoint + // + // launch 16 concurrent workers for 30 seconds + // > for i in {1..10}; do ( count=$(gtimeout 30 curl -s -N -H "Accept: text/event-stream" http://192.168.4.1/events 2>&1 | grep -c "^data:"); echo "Total: $count events, $(echo "$count / 4" | bc -l) events / second" ) & done; + // > for i in {1..16}; do ( count=$(gtimeout 30 curl -s -N -H "Accept: text/event-stream" http://192.168.4.1/events 2>&1 | grep -c "^data:"); echo "Total: $count events, $(echo "$count / 4" | bc -l) events / second" ) & done; + // + // With AsyncTCP, with 16 workers: a lot of "Event message queue overflow: discard message", no crash + // + // Total: 1711 events, 427.75 events / second + // Total: 1711 events, 427.75 events / second + // Total: 1626 events, 406.50 events / second + // Total: 1562 events, 390.50 events / second + // Total: 1706 events, 426.50 events / second + // Total: 1659 events, 414.75 events / second + // Total: 1624 events, 406.00 events / second + // Total: 1706 events, 426.50 events / second + // Total: 1487 events, 371.75 events / second + // Total: 1573 events, 393.25 events / second + // Total: 1569 events, 392.25 events / second + // Total: 1559 events, 389.75 events / second + // Total: 1560 events, 390.00 events / second + // Total: 1562 events, 390.50 events / second + // Total: 1626 events, 406.50 events / second + // + // With AsyncTCP, with 10 workers: + // + // Total: 2038 events, 509.50 events / second + // Total: 2120 events, 530.00 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2038 events, 509.50 events / second + // Total: 2037 events, 509.25 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2120 events, 530.00 events / second + // Total: 2038 events, 509.50 events / second + // Total: 2038 events, 509.50 events / second + // + // With AsyncTCPSock, with 16 workers: ESP32 CRASH !!! + // + // With AsyncTCPSock, with 10 workers: + // + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1182 events, 295.50 events / second + // Total: 1240 events, 310.00 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1183 events, 295.75 events / second + // + server.addHandler(&events); + + server.begin(); +} + +static uint32_t lastSSE = 0; +static uint32_t deltaSSE = 10; + +static uint32_t lastHeap = 0; + +void loop() { + uint32_t now = millis(); + if (now - lastSSE >= deltaSSE) { + events.send(String("ping-") + now, "heartbeat", now); + lastSSE = millis(); + } + +#ifdef ESP32 + if (now - lastHeap >= 2000) { + Serial.printf("Uptime: %3lu s, requests: %3u, Free heap: %" PRIu32 "\n", millis() / 1000, requests, ESP.getFreeHeap()); + lastHeap = now; + } +#endif +} |