VERILATOR_GANTT(1)

✨ NAME ✨

verilator_gantt — creates a Gantt chart of Verilator multi-threaded execution. that's the whole name vibe, bestie 💅

🌸 DESCRIPTION 🌸

okay so this is the verilator_gantt page from the VERILATOR_GANTT(1) manual (User Commands section, hi 👋), and it's literally here to make a Gantt chart of Verilator multi-threaded execution.

usage is locked in as:

verilator_gantt [-h] [--debug] [--no-vcd] [--vcd VCD] filename

verilator_gantt creates a visual representation to help analyze Verilator #xmultithreaded simulation performance, by showing when each macro-task #xstarts and ends, and showing when each thread is busy or idle. highkey performance-analysis main character energy ✨

For documentation see https://verilator.org/guide/latest/exe_verilator_gantt.html — iykyk 🦋

🎀 positional arguments 🎀

• filename — the input profile_exec.dat filename to process. yes, that exact filename, no cap 🍓

🦋 options 🦋

• -h, --help — shows this help message and exits. iconic behavior 💖
• --debug — enables debug. that's it, that's the vibe check 🎀
• --no-vcd — disables creating vcd. so no vcd gets made 🙈
• --vcd VCD — sets the filename for vcd output, and the value is literally VCD 💜

---

real talk, legal bestie moment:

This program is free software; you can redistribute it and/or modify it under the terms of either the GNU Lesser General Public License Version 3 or the Perl Artistic License Version 2.0.

SPDX-FileCopyrightText: 2018-2026 Wilson Snyder SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0

cute sign-off: source/version is verilator_gantt -, dated November 2026, and it lives in the VERILATOR_GANTT(1) manual. bye bestie, slay responsibly 🫶💖