GNU ELPA - emacs-gc-stats

Add

(require 'emacs-gc-stats)
;; Optionally reset Emacs GC settings to default values (recommended)
(setq emacs-gc-stats-gc-defaults 'emacs-defaults)
;; Optionally set reminder to upload the stats after 3 weeks.
(setq emacs-gc-stats-remind t) ; can also be a number of days
;; Optionally disable logging the command names
;; (setq emacs-gc-stats-inhibit-command-name-logging t)
(emacs-gc-stats-mode +1)

to your init file to enable the statistics acquiring.

When you are ready to share the results, run M-x emacs-gc-stats-save-session and then share the saved emacs-gc-stats-file (defaults to ~/.emacs.d/emacs-gc-stats.eld) by sending an email attachment to mailto:emacs-gc-stats@gnu.org. You can review the file before sharing–it is a text file.

Configure emacs-gc-stats-remind to make Emacs display a reminder about sharing the results.

This package does not upload anything automatically. You will need to upload the data manually, by sending email attachment. If necessary, you can review emacs-gc-stats-file (defaults to ~/.emacs.d/emacs-gc-stats.eld) before uploading–it is just a text file.

The following data is being collected after every command:

• GC settings gc-cons-threshold and gc-cons-percentage
• Emacs version and whether Emacs framework (Doom, Prelude, etc) is used
• Whether gcmh-mode is used
• Idle time and Emacs uptime
• Available OS memory (see memory-info)
• Emacs memory allocation/GC stats
• Current command name (potentially sensitive data, can be disabled)
• Timestamp when every GC is finished

Logging the command names can be disabled by setting emacs-gc-stats-inhibit-command-name-logging customization.

What exactly is being logger is controlled by emacs-gc-stats-setting-vars, emacs-gc-stats-command-vars, and emacs-gc-stats-summary-vars.

You can use M-x emacs-gc-stats-clear to clear the currently collected session data.

You can pause the logging any time by disabling emacs-gc-stats-mode (M-x emacs-gc-stats-mode).