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Activity Monitor 1.8.1

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@github-actions github-actions released this 13 Sep 17:28
· 37 commits to main since this release
v1.8.1
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Learn about vigilant mode.

Activity Monitor 1.8.1 adds per-process graphics memory accounting, more GPU activity details, and compact diagnostic help.

New

  • Track charged, charged compressed, excluded, and excluded compressed graphics memory for each accessible process using macOS task-memory ledgers.
  • Sort processes by Graphics charged, inspect subtree subtotals, and view graphics-memory histories with last readings and visible-range peaks.
  • Inspect per-GPU process execution rates, observed GPU time, measured/reporting client coverage, and execution-counter counts.
  • Export timestamped graphics-memory histories and per-device process activity in diagnostic JSON.

Improved

  • Share immutable graphics-memory snapshots across process rows and histories to reduce copying during sorting and tree aggregation.

  • Process-tree construction uses compact temporary graph state, avoids copying full records into traversal queues, and skips redundant filtering of complete snapshots.

  • Diagnostic explanations and subtitles now use compact info buttons. Hover for a tooltip or click to keep the full explanation open; access errors and missing-data states remain visible.

  • GPU tracking preserves missing/reset/warmup states, deduplicates reporting clients, and rebaselines after long observation gaps.

  • Graphics accounting reuses the background task-memory query, checks returned API revisions, preserves measured zero, and keeps unavailable readings distinct.

Graphics ledgers are kernel accounting, not a complete Metal allocation inventory or dedicated VRAM total. Shared surfaces can overlap, and compressed balances are logical bytes. No private frameworks, root access, or task-control rights are required.

Install

Download the universal DMG or app ZIP for Apple silicon and Intel on macOS 14 or later. Drag Activity Monitor to Applications. SHA256SUMS verifies the downloads.

GPU memory API investigation · Process diagnostics guide

Changes since 1.7.0

This release is ad-hoc signed, not Apple notarized. See INSTALL.md for first-launch instructions.

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