Master macOS disk I/O and CPU usage with per-process metrics
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TL;DR - FindDiskKiller
- Combines disk I/O, CPU, network, file activity, and drive health in one workspace for modern macOS versions.
- Provides per-process resource metrics, on-demand file tracing, and detailed disk health information.
- Operates entirely locally with no data upload, analytics, or third-party tracking.
Pricing: Free forever
Best for: Individuals & startups
What is FindDiskKiller?
FindDiskKiller is a native macOS utility that consolidates app disk I/O, CPU usage, network activity, file access, and drive health into a single workspace. Designed for modern versions of macOS, it helps users identify the source of sustained disk reads and writes by providing per-process resource metrics, targeted file tracing, and device-level throughput and health data. Unlike generic system monitors, it focuses specifically on disk activity and offers guided workflows to trace file access and understand disk behavior. All processing happens locally with no data uploaded, ensuring privacy.
Pros & Cons
Pros
- Unifies disk, CPU, network, file, and health data in one workspace, reducing the need to switch between tools
- Privacy-first design: all monitoring happens locally with no data transmitted
- Provides detailed file tracing and disk health metrics that Activity Monitor lacks
Cons
- Requires a modern version of macOS, limiting compatibility with older systems
- SMART/NVMe health data may not be available on external drives connected via USB enclosures
Key Features
App Activity view showing CPU, disk read/write, and network download/upload per processFile Activity with open file locations, recently modified directories, and on-demand access tracingDisks & Volumes display with familiar volume names and device throughputDisk Health data including temperature, lifetime reads/writes, wear level, spare capacity, and power-on hoursTime-range charts and five-second rate, cumulative total, peak, and sustained pattern analysis
Pricing
Free
FindDiskKiller is completely free to use with no hidden costs.
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FindDiskKiller FAQ
How does FindDiskKiller help a developer debug a runaway disk I/O process?
FindDiskKiller provides per-process disk I/O and CPU metrics, targeted file tracing, and device-level throughput data in a single workspace. This allows a developer to pinpoint which application is causing sustained disk reads or writes and trace the specific files being accessed without switching between multiple tools.
Which types of drives might not show health data in FindDiskKiller?
FindDiskKiller may not display SMART or NVMe health data for external drives connected through USB enclosures. This limitation applies only to certain external storage, while internal drives on modern macOS are fully supported.
What kind of user benefits most from FindDiskKiller's focused disk activity monitoring?
Developers and system administrators who need to diagnose disk performance issues or debug file access patterns benefit most from FindDiskKiller. Its per-process metrics and guided workflows make it ideal for anyone troubleshooting sustained disk I/O on macOS.
How is FindDiskKiller priced?
FindDiskKiller is free to use with no paid plan required. All features are available without any subscription or one-time purchase.
Does FindDiskKiller upload any data from the user's machine?
No, FindDiskKiller processes all monitoring data locally on the user's machine and does not upload any information. This privacy-first design ensures that disk activity, file access, and system metrics never leave the computer.
How does FindDiskKiller consolidate multiple system metrics into one view?
FindDiskKiller combines disk I/O, CPU usage, network activity, file access, and drive health into a single workspace. This eliminates the need to switch between separate utilities like Activity Monitor and disk utility, providing a unified dashboard for system analysis.
Can FindDiskKiller trace which files a specific process is accessing?
Yes, FindDiskKiller includes targeted file tracing that shows which files a specific process is reading or writing. This helps users understand the exact disk behavior behind high I/O activity.
Which macOS versions does FindDiskKiller require?
FindDiskKiller requires a modern version of macOS, which means it is not compatible with older operating systems. Users should ensure their system meets the current macOS requirements to use the tool.
Source: finddiskkiller.com