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- stdout logger: release mutex while waiting on pause resume so prompt
callbacks can log (fixes hang after trusting new hosts; known_hosts
was written but Resume never ran).
- known hosts callback: stop borrowing the SSH dial throttle channel
(could block or interact badly with parallel handshakes).
- host key path: use errors.Is(..., fs.ErrNotExist) for RootedPath.Stat
wrapped errors; stat errors now fail fast instead of mis-read.
- public key path: same ErrNotExist check for authorized_keys miss.
- Build: optional DTAIL_NO_ZSTD=yes / nozstd tag for CGO-free builds;
split zstd readers into tagged files.
- Docs/examples: firewalld note for port 2222, log prune timer+script,
SSHBindAddress note, dserver unit disabled-by-default comment;
firewalld helper script example.
- Regression test for stdout pause/mutex behavior.
Made-with: Cursor
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- Add verbose command output showing exact commands executed during PGO
- Show all client commands used to generate dserver load
- Display profile merging commands with go tool pprof
- Document all commands in pgo_commands_detail.md
- Improve user visibility into PGO workflow execution
This makes it easier to understand and debug the PGO process by
showing exactly what commands are being run at each step.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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- Add comprehensive PGO documentation in doc/pgo_implementation.md
- Improve dserver profiling using HTTP pprof endpoint
- Handle empty profiles gracefully for I/O-bound operations
- Add concurrent client workloads for better server profiling
- Update .gitignore to exclude PGO-generated directories
- Document performance improvements: 3-39% depending on command
The PGO implementation now supports all dtail commands with
realistic workloads and proper handling of edge cases.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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This commit adds comprehensive performance benchmarking comparing DTail v4.3.0
(before turbo mode) with the current implementation that has turbo boost enabled
by default.
Performance Improvements:
- DCat: 2,535% improvement (26.3x faster)
- DGrep: 1,334-1,811% improvement (14-19x faster depending on hit rate)
- DMap: 25-55% improvement for most query types
Files added:
- benchmarks/baselines/baseline_20250704_130947_turbo-enabled.txt
New baseline with turbo mode enabled for future comparisons
- doc/turbo_performance_analysis.md
Detailed technical analysis of performance improvements including
methodology, results, and implementation details
- benchmark_comparison_report.md
Summary report comparing v4.3.0 baseline with turbo-enabled baseline
The turbo mode optimizations bypass channels for direct output operations
and use direct line processing for MapReduce in server mode, resulting in
dramatic performance improvements while maintaining compatibility.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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- Delete temporary benchmark shell scripts (7 files)
- Delete temporary log files from root and integrationtests
- Delete .out test output files
- Delete temporary Python analysis scripts
- Move documentation to doc/ directory:
- TURBOBOOST_OPTIMIZATION.md → doc/turboboost_optimization.md
- performance_optimization_summary.md → doc/performance_optimization_summary.md
- integrationtests/REFACTORING_GUIDE.md → doc/refactoring_guide.md
- benchmarks/PROFILING.md → doc/profiling.md
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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less portable
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dealing with log streams
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