CrystalDiskMark Documentation

CrystalDiskMark allows users to configure various parameters for disk benchmarking via its main dialog and settings menu.

Main Dialog Controls

• Count (IDC_COMBO_COUNT): Select the number of test iterations.
• Size (IDC_COMBO_SIZE): Select the file size for the benchmark.
• Drive (IDC_COMBO_DRIVE): Select the target drive to test.
• Unit (IDC_COMBO_UNIT): Select the measurement unit (e.g., MB/s).
• Mix Mode (IDC_COMBO_MIX): Available when _MIX_MODE is enabled; allows configuring mixed read/write tests.
• Test Buttons: TEST0 through TEST3 trigger specific benchmark sequences.

Queues and Threads Settings

Accessed via the &Settings menu (ID_SETTINGS_QUEUESTHREADS), this dialog allows fine-grained control over the benchmark engine:

• Bench Type: Select the type of benchmark (e.g., Default, Peak, Real World).
• Bench Size: Set the file size for specific test profiles.
• Queues: Set the number of command queues.
• Threads: Set the number of threads to use.
• Measure/Interval Time: Configure timing parameters for the test.

Pre-defined profiles are available via the &Settings menu:

• Default: Standard benchmark settings.
• NVMe SSD: Optimized settings for NVMe drives.
• Flash Memory: Optimized settings for flash-based storage.

The application provides several menu-driven actions and keyboard accelerators for efficient operation.

File Operations

• Copy: Copy results to clipboard. Shortcut: Ctrl + Shift + C.
• Save (text): Save results as a text file. Shortcut: Ctrl + T.
• Save (image): Save results as an image file. Shortcut: Ctrl + S.
• Exit: Close the application. Shortcut: Alt + F4.

Settings and Profiles

• Settings (Queues/Threads): Open the advanced settings dialog. Shortcut: Ctrl + Q.
• Font Setting: Open the font customization dialog. Shortcut: Ctrl + F.
• Profiles: Switch between Default, Peak Performance, Real World Performance, and Demonstration profiles.
• Test Mode: Switch between Default (Random) and All 0x00 (0 Fill) modes.

View and Help

• Zoom: Adjust UI scaling (100% to 300%, or Auto).
• Help: Access help documentation or information about the software. Shortcut: F1.
• About: View version and copyright information.

### Accelerator Mapping
- `Ctrl + Shift + C` -> `ID_COPY` (Copy)
- `Ctrl + T` -> `ID_SAVE_TEXT` (Save text)
- `Ctrl + S` -> `ID_SAVE_IMAGE` (Save image)
- `Alt + F4` -> `ID_EXIT` (Exit)
- `F1` -> `ID_HELP` (Help)
- `Ctrl + Q` -> `ID_SETTINGS_QUEUESTHREADS` (Settings)
- `Ctrl + F` -> `ID_FONT_SETTING` (Font Setting)
- `F5` -> `IDOK` (OK/Refresh)