PerfBars

PerfBars is a real-time performance meter for World of Warcraft that tracks addon CPU and Memory usage through smooth, rounded bars inspired by modern damage meters.

Multi-Window Monitoring

• Create up to 5 independent windows on screen to monitor different metrics side by side, such as one window for live CPU usage and a second window for total Memory.
• Configure each window individually: metric mode, number of visible bars, width, bar height, spacing, scale, and lock state.
• Always-visible window headers display the total metric value and current FPS, while quick-action buttons (Memory Purge, New Window, Lock) appear only on mouseover.

Tracked Metrics

• Total Memory (MEM): current RAM footprint of each loaded addon in KB or MB.
• Memory Allocation (KB/s): live memory growth per second to spot addons generating excessive garbage collection pressure.
• Live CPU Usage (CPU/s): real-time millisecond cost per second for each addon when WoW script profiling is enabled.
• Cumulative CPU (CPU): total execution time accumulated since the last UI reload or counter reset.

Visual Customization

• Three bar corner styles rendered without stretching at any fill percentage: Rounded Corners, Full Pill Capsule, and Square Edges.
• Six custom statusbar textures: Soft Satin, Modern Flat, Glass Vial, Velvet, Neon Glass, and Beveled.
• Three color palettes: Unique Color per Addon, Dynamic Load Gradient (Green to Red), and Gold and Amber Theme.
• Three background track styles: Dark Rounded Track, Subtle Background, or Transparent.

Accurate Self-Profiling

• Subtracts the C-engine scan duration of UpdateAddOnMemoryUsage and UpdateAddOnCPUUsage from PerfBars own CPU counter so querying the game engine never inflates PerfBars reported usage.
• Zero-allocation update loop with dirty-checking on bar widths, colors, and text labels.

Slash Commands

• /pb or /perfbars: open the Studio configuration panel.
• /pb add: create a new meter window.
• /pb gc or /pb reset: force Lua garbage collection and reset CPU profiling statistics.