MemManager 0.4.0

Windows

• Fixed: "Critical" with plenty of free RAM.
  • Fast cache recycling no longer counts as pressure unless fast memory is actually short
    (for example during large file copies with lots of RAM free).
  • When the state is high because of virtual memory (commit near its limit), the dashboard
    says so: "Virtual memory is nearly full · RAM cleaning won't help".
  • RAM-only actions no longer run for it.
• Virtual memory everywhere:
  • A dashboard row shows commit against the commit limit (RAM + page file) and page-file use.
  • Each action in Activity shows how much of the "freed" RAM went to the page file.
  • The Optimize and Deep clean dialogs say so up front.
• WinMemoryCleaner methodology analysis.

macOS

• One-click Quit offers. When memory stays tight, MemManager offers to quit the idle app
  holding the most memory, with a notification and a Quit button. It never quits on its own;
  each app is offered at most once every 6 hours, and the offer can be turned off in Settings.
• Clear about what it can do:
  • The Activity page states what MemManager can do on this Mac. macOS manages memory itself;
    Nudge needs the helper, which needs a Developer-ID-signed build.
  • The "Now" line reads "macOS is handling memory".

Upgrading

• From 0.2.0 or 0.3.0: MemManager offers this update by itself within a day of its release;
  to get it sooner, use Settings → Updates → Check now. It installs in place and keeps your
  settings.
• From 0.1.0: install this version once by hand.

Known limitations

• Unsigned builds:
  • Windows SmartScreen may warn.
  • On macOS, right-click → Open the first time. Nudge stays unavailable until builds are
    Developer-ID signed.
• Not yet hand-tested: the dashboards and the Activity view are verified headless in CI only.

Install

• Windows 10/11 (x64 or ARM64): run MemManager-0.4.0-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-0.4.0-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)	2.00 GiB	12.5%	re-touch 528 ms vs 12 ms warm; 0 hard page faults
Modified (dirty) pages from trimmed apps	Flush modified list (tier 4)	1.84 GiB	11.5%	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)	6.41 GiB	40.1%	re-reading the file took 16810 ms vs 455 ms from cache
All of the above at once	Deep clean (manual)	5.29 GiB	33.1%	624778 hard faults in the next 10 s (baseline 782); apps re-touch 13496 ms
Identical pages across the system	Combine pages (tier 5)	0.02 GiB	0.1%	CPU scan only

macOS (CI runner, 7.00 GiB RAM)

Bloat	Action	Freed	% of RAM	Cost afterwards
Volatile purgeable memory (app caches)	Nudge (helper)	0.70 GiB	10.0%	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)	3.06 GiB	43.7%	re-reading the file took 1539 ms vs 88 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)

882817fd8ca66b9519acbb6dff7ae0d7ae63da0ccb8bbfdc06e372711e312552  MemManager-0.4.0-macos-universal.dmg
e853c30a3d001d0f94d14e3b965a843fedaf98d91b5842b3db27570c9c48223e  MemManager-0.4.0-macos-universal.zip
50e6fb262c9875ef7d0e15209b6724c25ffcaeba922a5f000265257a801cf308  MemManager-0.4.0-windows-arm64-portable.zip
f55faf7f78ea595af838bf554a1399e3d402ad8315ec85ffedd7e5bfe256656b  MemManager-0.4.0-windows-arm64.exe
f316438f024a0fe0cf4d9694ebe4b0d9132cd69cf29e456a9db9cdf84bdb8a97  MemManager-0.4.0-windows-setup.exe
f71ef585eee997876d28607baad096b51e05b57c9a597a3a713357504158124e  MemManager-0.4.0-windows-x64-portable.zip
65be8ab7c510dcda110e98ba61a1f07c9ccf1a899083367f3652227338b11338  MemManager-0.4.0-windows-x64.exe