# VerySleepy/verysleepy

Very Sleepy, a sampling CPU profiler for Windows

Repository: https://github.com/VerySleepy/verysleepy
Canonical: https://ross.abutalabs.com/products/verysleepy
Homepage: http://www.codersnotes.com/sleepy
Language: C++
License: GPL-2.0
License Family: copyleft
Topics: profiler, wxwidgets
Last push: 2023-10-16T01:26:24+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4983, "days_push": 1053, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1233, forks 114 (observed 2026-08-28T04:04:04.544708+00:00)

## What it is
Very Sleepy is a free open-source sampling CPU profiler for Windows with a wxWidgets-based GUI. It can attach to any running native Windows application without recompilation and displays results as a full call graph, supporting both Visual Studio (PDB) and MinGW (DWARF) symbols.

## Use cases
- profile a slow Windows application to find CPU hotspots
- sample-profile a running process without recompiling it
- profile MinGW-compiled programs with DWARF symbols
- view profiling results as a call graph and export to CSV
- profile an existing process by its PID from the command line
- resolve symbols via the Microsoft Symbol Server

## When to choose
- you need a simple, zero-setup CPU profiler for native Windows apps
- you profile C/C++ code built with Visual Studio or MinGW
- you want to attach to an already-running process without instrumentation
- you prefer a lightweight GUI profiler over heavy suites like VTune

## When to avoid
- you need profiling on Linux or macOS - this is Windows-only
- you need GPU, memory, or I/O profiling rather than CPU sampling
- you need continuous integration profiling or advanced trace analysis
- you need a cross-platform profiler for managed languages like .NET or Java

## Facets
- artifact type: application
- maturity: maintenance
- function: benchmarking, developer-tools, gui, cli
- domain: developer-tools, performance, windows
- platform: windows, cli
- tags: cpu-profiler, sampling-profiler, profiling, call-graph, wxwidgets, mingw, visual-studio, desktop

## Member repositories
- VerySleepy/verysleepy (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:04.544708+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:22:14.226082+00:00, confidence not recorded.
  - readme: https://github.com/VerySleepy/verysleepy (fetched 2026-08-28T04:04:04.544708+00:00, sha a0459235b3d5)
  - homepage: http://www.codersnotes.com/sleepy (fetched 2026-08-29T12:21:55.348473+00:00, sha ca842c7128df)
  - site_page: http://www.codersnotes.com/about (fetched 2026-08-29T12:21:55.358480+00:00, sha afe4adae69cf)
- Data as of 2026-08-30T08:39:29.467469+00:00.