MemManager 0.1.0

Windows (tray app, Rust + Win32 + Direct2D)

• Tiered, measured optimization, cheapest step first:
  1. Lowers the memory priority of idle background apps.
  2. Clears the priority-0 standby cache.
  3. Clears the full standby cache, only when Windows is already repurposing it.
  4. Selectively trims idle, silent, background apps, and flushes the modified list.
  5. In the Aggressive profile: combines pages and caps the file cache.
• Regret tracking: every action records the disk page-ins it causes, and actions that hurt
  are backed off automatically.
• Game mode: keeps standby clear while a full-screen app runs and never trims during games.
• Leak and runaway alerts: robust trend statistics (Theil–Sen + Mann–Kendall) with a
  time-until-trouble estimate, a commit-limit warning, and kernel pool-tag attribution for
  driver leaks.
• Tray icon: ring, bar or number styles; system, traffic-light, mono, colour-safe or custom
  colours.
• Fluent flyout: dashboard and settings, rounded corners, optional acrylic background.
• Installer: one setup exe for x64 and ARM64. It optionally registers a logon task so
  MemManager starts with cleaning privileges without a UAC prompt each time, and uninstalls
  cleanly.
• Footprint: about 2.6–2.9 MB private bytes when idle; about 650 KB executable.

macOS (menu bar app, Swift + AppKit)

• Event-driven monitoring of kernel memory pressure, with Activity-Monitor-consistent
  figures: App, Wired, Compressed, Cached, Swap.
• Per-app leak alerts, summing every helper process, with Quit / Relaunch / Ignore actions.
  Also a swap-thrash warning and idle-heavy-app suggestions with an opt-in auto-quit list.
• Optional privileged helper:
  • Nudge asks apps to release caches and empties purgeable memory. It is latch-safe: the
    real pressure level is always restored.
  • Manual disk-cache purge.
• Menu bar icon: ring, bar, percent, graph or dot, with colour presets.
• Install: drag-to-Applications DMG.
• Footprint: about 6 MB.

Known limitations

• Unsigned builds:
  • Windows SmartScreen may warn.
  • On macOS, right-click → Open the first time.
  • The macOS helper (Nudge/Purge) can only be installed from a Developer-ID-signed build.
• Not yet hand-tested: the UIs are built and CI-verified headless only.
• Accessibility: Windows screen-reader (UI Automation) support for the flyout is pending.

Install

• Windows 10/11 (x64 or ARM64): run MemManager-0.1.0-windows-setup.exe. Keep "Start at login with memory-cleaning privileges" checked so MemManager can manage memory without asking for admin each time. Uninstall from Settings → Apps.
• macOS 13+: open MemManager-0.1.0-macos-universal.dmg and drag MemManager to Applications. On first launch, right-click → Open (the build is not notarized yet).
• Portable Windows zips and a macOS zip are attached as well.

Measured memory reduction

Each row creates real bloat on a GitHub-hosted runner, runs the action through the same code path the app uses, and measures memory freed plus the cost afterwards. Numbers vary by machine and workload.

Windows (CI runner, 15.99 GiB RAM, build 26100)

Bloat	Action	Freed	% of RAM	Cost afterwards
Idle apps holding private memory	Selective trim of idle apps (tier 4)	1.99 GiB	12.4%	re-touch 454 ms vs 8 ms warm; 434 hard page faults
Modified (dirty) pages from trimmed apps	Flush modified list (tier 4)	1.52 GiB	9.5%	pagefile writes; pages become reusable cache
File cache after reading a large file	Clear low-priority cache (tier 2)	0.00 GiB	0.0%	none: only cache Windows was about to discard
File cache after reading a large file	Clear standby cache (tier 3)	7.98 GiB	49.9%	re-reading the file took 6069 ms vs 232 ms from cache
All of the above at once	Deep clean (manual)	5.07 GiB	31.7%	975881 hard faults in the next 10 s (baseline 1788); apps re-touch 40483 ms
Identical pages across the system	Combine pages (tier 5)	0.03 GiB	0.2%	CPU scan only

macOS (CI runner, 7.00 GiB RAM)

Bloat	Action	Freed	% of RAM	Cost afterwards
Volatile purgeable memory (app caches)	Nudge (helper)	0.69 GiB	9.9%	apps regenerate purged caches on next use
App holding a cache, cooperative	Nudge (helper)	0.70 GiB	10.0%	the app rebuilds its cache when needed
File cache after reading a large file	Purge disk cache (manual, helper)	2.68 GiB	38.3%	re-reading the file took 677 ms vs 189 ms from cache
Idle app holding memory	Quit idle app (suggestion / allowlist)	0.70 GiB	10.0%	the app must be reopened

Checksums (SHA-256)

21e1878ee6890316655b7184839b16db542e48a1680b3cb71691ad40520714ba  MemManager-0.1.0-macos-universal.dmg
f824ca71e288c4696a74a4e8b6013776c33d12cefb76b2cd0dba7e0394deded4  MemManager-0.1.0-macos-universal.zip
4f4436d03fe6064c2a84bda283f5c0c416614a535f1200280bfbf2dc4d29ae1a  MemManager-0.1.0-windows-arm64-portable.zip
123ff8ce97853e0a5a6809641ea4172912d74ea3fe6b8e2f79210f26f1ea7f5b  MemManager-0.1.0-windows-setup.exe
f5448b609ceb633d29f2ae7d7b1bee97491a7064641af2b93d30c81d745d1ae0  MemManager-0.1.0-windows-x64-portable.zip