jinye 7103c905f7 feat(cli): add startup performance profiler (#3232) ... feat(cli): add startup performance profiler (#3219) Add a lightweight startup profiler activated via QWEN_CODE_PROFILE_STARTUP=1. When enabled, collects performance.now() timestamps at 7 key phases in main() and writes a JSON report to ~/.qwen/startup-perf/. Also records process.uptime() at T0 to capture module loading time not covered by checkpoint-based measurement. Key design decisions: - Only profiles inside sandbox child process to avoid duplicate reports - initStartupProfiler() is idempotent (resets state on each call) - Filename uses report.sessionId for consistency with JSON content - Zero overhead when disabled (single env var check) Initial measurement: module loading ~1342ms (94%), main() ~85ms (6%), confirming barrel exports and eager dependency loading as primary optimization targets for #3011. Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>		2026-04-14 14:14:42 +08:00
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design	fix(followup): prevent tool call UI leak and Enter accept buffer race (#2872)	2026-04-09 00:07:03 +08:00
developers	feat(cli/sdk): expose /context usage data in non-interactive mode and SDK API (#2916)	2026-04-14 03:28:32 +08:00
users	feat(cli): add startup performance profiler (#3232)	2026-04-14 14:14:42 +08:00
_meta.ts	feat: refactor docs	2025-12-05 10:51:57 +08:00
index.md	fix: lint issues	2025-12-19 15:52:11 +08:00