Performance measurement, storage, and analysis.

Clone this repo:


  1. d949658 vendor: delete by Dmitri Shuralyov · 9 months ago master
  2. 9c9101d analysis/appengine: update to go113 by Russ Cox · 9 months ago
  3. adf48cb perfdata: fix go113 to use net/http directly by Russ Cox · 9 months ago
  4. 82ec4de perfdata: update to Go 1.13 and larger instance by Russ Cox · 9 months ago
  5. 36b577b storage: fix vet errors by Kevin Burke · 3 years, 10 months ago

Go performance measurement, storage, and analysis tools

This subrepository holds the source for various packages and tools related to performance measurement, storage, and analysis.

cmd/benchstat contains a command-line tool that computes and compares statistics about benchmarks.

cmd/benchsave contains a command-line tool for publishing benchmark results.

storage contains the benchmark result storage system.

analysis contains the benchmark result analysis system.

Both storage and analysis can be run locally; the following commands will run the complete stack on your machine with an in-memory datastore.

go get -u
go get -u
localperfdata -addr=:8081 -view_url_base=http://localhost:8080/search?q=upload: &
localperf -addr=:8080 -storage=http://localhost:8081

The storage system is designed to have a standardized API, and we encourage additional analysis tools to be written against the API. A client can be found in the storage package.


The easiest way to install is to run go get You can also manually git clone the repository and run go install ./cmd/....

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see

The main issue tracker for the perf repository is located at Prefix your issue with “x/perf:” in the subject line, so it is easy to find.