autopprof

Introducing Autopprof

Autopprof is an innovative tool designed to automatically profile Go applications when they exceed specified limits in CPU or memory utilization within a Linux container environment. By setting threshold levels, developers can ensure their applications are running efficiently, and proactively address performance issues, without manually tracking resource use.

How It Works

Once initiated, Autopprof actively monitors the CPU and memory utilization of Go applications. When utilization surpasses the predetermined thresholds, Autopprof automatically performs profiling on the application—either for CPU or heap memory usage. The profiling results are then sent to the designated reporting channel, such as Slack, ensuring that developers are promptly informed about their application's performance.

Here are examples of the profiling reports generated by Autopprof:

• CPU Profile Report: Gives detailed insights into CPU utilization.
• Memory Profile Report: Provides analysis on memory usage, helping pinpoint potential bottlenecks.

Installation Guide

Installing Autopprof is straightforward:

go get -u github.com/daangn/autopprof

How to Use Autopprof

Here is a simple implementation example to integrate Autopprof into a Go application:

package main

import (
	"errors"
	"log"

	"github.com/daangn/autopprof"
	"github.com/daangn/autopprof/report"
)

func main() {
	err := autopprof.Start(autopprof.Option{
		CPUThreshold: 0.8, // Default: 0.75.
		MemThreshold: 0.8, // Default: 0.75.
		Reporter: report.NewSlackReporter(
			&report.SlackReporterOption{
				App:     "YOUR_APP_NAME",
				Token:   "YOUR_TOKEN_HERE",
				Channel: "#REPORT_CHANNEL",
			},
		),
	})
	if errors.Is(err, autopprof.ErrUnsupportedPlatform) {
		log.Println(err)
	} else if err != nil {
		log.Fatalln(err)
	}
	defer autopprof.Stop()

	// Additional application code goes here.
}

It is important to note that Autopprof operates optimally on Linux systems. If the application runs on a non-Linux system, the ErrUnsupportedPlatform error must be managed appropriately.

Creating a Custom Reporter

Users can customize how reports are handled by implementing the report.Reporter interface, enabling a seamless integration of profiling reports with their preferred reporting systems.

Benchmarking and Performance

One of the advantages of Autopprof is its minimal performance overhead. By benchmarking the overhead associated with CPU and memory utilization monitoring, developers can rest assured that the performance impact is negligible. Autopprof provides precise metrics on execution time and memory allocation for both light and heavy tasks, demonstrating its efficiency.

Run the benchmark tests using the following command:

./benchmark.sh

Licensing

Autopprof is distributed under the Apache 2.0 License, allowing users to freely use, modify, and distribute the software.

By employing Autopprof, developers gain a valuable tool in their optimization toolkit, helping them maintain robust, high-performing Go applications with ease.