[mirror] Performance measurement, storage, and analysis.

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Code Analysis perf
Overview

Go performance measurement, storage, and analysis tools

Go Reference

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 https://perfdata.golang.org/ benchmark result storage system.

analysis contains the https://perf.golang.org/ 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 golang.org/x/perf/storage/localperfdata
go get -u golang.org/x/perf/analysis/localperf
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.

Download/Install

The easiest way to install is to run go get golang.org/x/perf/cmd/.... 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 https://golang.org/doc/contribute.html.

The main issue tracker for the perf repository is located at https://github.com/golang/go/issues. Prefix your issue with "x/perf:" in the subject line, so it is easy to find.

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Comments
  • benchstat: accept io.Writer in FormatHTML, not *bytes.Buffer

    benchstat: accept io.Writer in FormatHTML, not *bytes.Buffer

    This brings the API in-line with that of FormatText and FormatCSV and allows it to be used without necessitating an intermediate buffer. The change is fully backwards compatible and doesn't impose any potential performance cost because html.Template.Execute accepts an io.Writer, so any bytes.Buffer passed by reference to FormatHTML was already being forced to escape onto the heap.

    This might have been done this way to avoid questions about how the function should handle errors from Writer, but we already ignore those questions and panic in FormatCSV, so it seems reasonable that we would do the same thing here.

    cla: yes 
    opened by nvanbenschoten 1
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