Benchmark

• Measure the end to end time for some operations for making comparisons

Java Microbenchmark Harness (JMH)

• Use Maven archetype to scaffold a benchmarking project

• Build executable jar file to run the benchmark test cases independently. Use IDE or other tools to run the test cases might affect environment and therefore benchmark results.

• Resources

  • Oracle - Avoiding Benchmarking Pitfalls on the JVM (opens in a new tab)
  • GitHub - openjdk/jmh - README (opens in a new tab)
  • GitHub - melix/jmh-gradle-plugin (opens in a new tab)

• Examples

  • Benchmark JDBC connectors and Java 21 virtual threads (opens in a new tab)

Disk I/O Performance

fio

• Resources

  • fio - Flexible I/O tester (opens in a new tab)
  • LinuxReviews - HOWTO Test Disk I/O Performance (opens in a new tab)
  • GitLab - File system performance benchmarking (opens in a new tab)

Network I/O Performance

HTTP

wrk

• GitHub - wg/wrk (opens in a new tab)
• GitHub - giltene/wrk2 (opens in a new tab)

k6

• GitHub - grafana/k6 (opens in a new tab)

Gatling

• GitHub - gatling/gatling (opens in a new tab)

nghttp2 - h2load

• h2load - HTTP/2 benchmarking tool - HOW-TO (opens in a new tab)

siege

• GitHub - JoeDog/siege (opens in a new tab)
• Resources utilization in reactive services (opens in a new tab)

HAR Analyzer

• Google Admin Toolbox - HAR Analyzer (opens in a new tab)

  Works offline

SSL/TLS

Measure TLS connection and handshake time

openssl s_time -connect $host:$port -new

Measure speed of various security algorithms

openssl speed $algorithm

Linux CLI

Show how long a command takes

time $command

or

hyperfine $command

Show performance counter stats for a command

perf stat $command

Redis

• Redis benchmark (opens in a new tab)

Apache Kafka

• Performance testing (opens in a new tab)

Load Testing

Load Generator

Faban

• Faban - Helping measure performance (opens in a new tab)

Resources

• Blogs

  • Brendan Gregg's Blog (opens in a new tab)
  • Mostly nerdless - Every two weeks a text on profiling, debugging or eBPF (opens in a new tab)

Git

• How to Improve Performance in Git: The Complete Guide (opens in a new tab)