autotoc_md2502

doc_id: "LOG-PERF-006" doc_title: "Logger System - Performance Baseline Metrics" doc_version: "1.0.0" doc_date: "2026-04-04" doc_status: "Released" project: "logger_system"

category: "PERF"

Logger System - Performance Baseline Metrics

‍SSOT: This document is the single source of truth for Logger System - Performance Baseline Metrics.

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Version: 0.1.0.0 Date: 2025-10-09 Phase: Phase 0 - Foundation Status: Baseline Established

System Information

Hardware Configuration

CPU: Apple M1 (ARM64)
RAM: 8 GB
Storage: SSD

Software Configuration

OS: macOS 26.1
Compiler: Apple Clang 17.0.0.17000319
Build Type: Release (-O3)
C++ Standard: C++20

Performance Metrics

Logging Throughput

Synchronous Logging: 850,000 messages/second
Asynchronous Logging: 4,340,000 messages/second
Console Output: 120,000 messages/second
File Output: 2,100,000 messages/second

Latency (Async Mode)

P50: <0.3 μs
P95: <0.8 μs
P99: <1.5 μs

Memory Performance

Baseline: 2.5 MB
Buffer (1K messages): 5.2 MB
Buffer (10K messages): 18 MB

Benchmark Results

Mode	Throughput	Latency (P50)	Memory	Best For
Sync Console	120K msg/s	8 μs	2.5 MB	Development
Sync File	850K msg/s	1.2 μs	2.8 MB	Simple apps
Async File	4.34M msg/s	0.3 μs	5 MB	Production
Async Multi-sink	3.8M msg/s	0.4 μs	7 MB	Enterprise

Key Features

✅ 4.34M messages/second in async mode
✅ Sub-microsecond latency (P50 < 0.3 μs)
✅ Low memory footprint (2.5 MB baseline)
✅ Multiple sink support with minimal overhead
✅ Zero-allocation hot path (memory pooling)

Baseline Validation

Phase 0 Requirements

Benchmark infrastructure ✅

Performance metrics baselined ✅

Acceptance Criteria

Throughput > 3M msg/s ✅ (4.34M)

Latency < 1 μs (P50) ✅ (0.3 μs)

Memory < 5 MB ✅ (2.5 MB)

Baseline Established: 2025-10-09 Maintainer: kcenon