go-size-analyzer

English | 简体中文

A simple tool to analyze the size of a Go compiled binary.

Installation

Download the latest release from the release page

Don't use go install, because gsa uses modded dependencies and replace directive was not allowed by go install.

Usage

Example

Web mode

$ gsa --web golang-compiled-binary

Will start a web server on port 8080, you can view the result in your browser.

The web page will look like this:

You can click to expand the package to see the details.

Text mode

$ gsa docker-compose-linux-x86_64
+------------------------------------------------------------------------------+
| docker-compose-linux-x86_64                                                  |
+---------+-----------------------------------------------+--------+-----------+
| PERCENT | NAME                                          | SIZE   | TYPE      |
+---------+-----------------------------------------------+--------+-----------+
| 27.76%  | .gopclntab                                    | 17 MB  | section   |
| 15.17%  | .rodata                                       | 9.5 MB | section   |
| 11.63%  | k8s.io/api                                    | 7.3 MB | vendor    |
| 6.69%   | .strtab                                       | 4.2 MB | section   |
| 3.47%   | k8s.io/client-go                              | 2.2 MB | vendor    |
| 3.37%   | .symtab                                       | 2.1 MB | section   |
| 2.28%   | github.com/moby/buildkit                      | 1.4 MB | vendor    |
| 1.54%   | github.com/gogo/protobuf                      | 968 kB | vendor    |
| 1.53%   | github.com/google/gnostic-models              | 958 kB | vendor    |
| 1.33%   | github.com/aws/aws-sdk-go-v2                  | 836 kB | vendor    |
| 1.26%   | crypto                                        | 790 kB | std       |
| 1.25%   | google.golang.org/protobuf                    | 782 kB | vendor    |
| 1.24%   | k8s.io/apimachinery                           | 779 kB | vendor    |
| 1.24%   | net                                           | 777 kB | std       |
| 1.20%   | github.com/docker/compose/v2                  | 752 kB | main      |
| 0.95%   | .noptrdata                                    | 596 kB | section   |
| 0.93%   | go.opentelemetry.io/otel                      | 582 kB | vendor    |
| 0.85%   | google.golang.org/grpc                        | 533 kB | vendor    |
| 0.71%   | runtime                                       | 442 kB | std       |
| 0.59%   | github.com/docker/buildx                      | 371 kB | vendor    |
| 0.55%   | github.com/docker/docker                      | 347 kB | vendor    |
| 0.53%   |                                               | 331 kB | generated |
| 0.52%   | golang.org/x/net                              | 326 kB | vendor    |
| 0.47%   | github.com/theupdateframework/notary          | 294 kB | vendor    |

...[Collapsed]...

| 0.00%   | database/sql/driver                           | 128 B  | std       |
| 0.00%   | .note.go.buildid                              | 100 B  | section   |
| 0.00%   | hash/fnv                                      | 96 B   | std       |
| 0.00%   | maps                                          | 96 B   | std       |
| 0.00%   | github.com/moby/sys/sequential                | 64 B   | vendor    |
| 0.00%   | .text                                         | 1 B    | section   |
+---------+-----------------------------------------------+--------+-----------+
| 97.65%  | KNOWN                                         | 61 MB  |           |
| 100%    | TOTAL                                         | 63 MB  |           |
+---------+-----------------------------------------------+--------+-----------+

Full options

Usage: gsa <file> [flags]

A tool for analysing the size of dependencies in compiled Golang binaries,
providing insight into their impact on the final build.

Arguments:
  <file>    Binary file to analyze

Flags:
  -h, --help             Show context-sensitive help.
      --verbose          Verbose output
  -f, --format="text"    Output format, possible values: text,json,html
      --hide-progress    Hide progress bar for disassembly
      --no-disasm        Skip disassembly pass
      --no-symbol        Skip symbol pass
  -o, --output=STRING    Write to file
      --version          Show version

Text output options
  --hide-sections    Hide sections
  --hide-main        Hide main package
  --hide-std         Hide standard library

Json output options
  --indent=INDENT    Indentation for json output
  --compact          Hide function details, replacement with size

Web explorer options
  --web               use web interface to explore the details
  --listen=":8080"    listen address
  --open              Open browser

Caution

The tool can work with stripped binaries, but it may lead to inaccurate results.

TODO

• Add more pattern for disassembling the binary
• Extract the information from the dwarf section
• Count the symbol size itself to package
• Add other charts like flame graph, pie chart, etc.
• Support C++/Rust symbol demangling in cgo
• Add a TUI mode for exploring details

Contribution

Any contribution is welcome, feel free to open an issue or a pull request.

LICENSE

Published under the AGPL-3.0.