Adds four Criterion.rs benchmark suites to measure hot-path performance
and demonstrate the impact of Sprints 1–3 optimizations:
- benches/protocol.rs — Command & StatusMessage serialize/deserialize
- benches/bandwidth.rs — BandwidthState atomics, budget, interval math
- benches/tcp_rx_scan.rs — memchr SIMD scan vs naive O(n) loop (55× faster
on 256KB buffers with status at end)
- benches/ecsrp5.rs — WCurve::new() heavy math vs cached LazyLock
(~123,000× faster access)
Also adds BENCHMARKS.md with usage instructions and example results.
Visibility changes (bench-only):
- scan_status_message is now pub (was #[cfg(test)] only)
- WCurve and WCURVE are now pub in ecsrp5.rs
dev-dependencies: criterion + pprof (optional flamegraph support)
This commit applies eight low-risk internal optimizations identified
in the performance audit. No wire protocol changes — 100% MikroTik
compatible.
Changes:
- ecsrp5.rs: Cache WCurve in a global LazyLock, eliminating the
expensive BigUint modular square root recomputation on every
EC-SRP5 authentication. Also optimize the local hex::encode
module to use a single pre-allocated String instead of N format!
allocations.
- server.rs: Deduplicate Instant::now() calls in the TCP TX hot
loop, caching the result at the top of each iteration.
- csv_output.rs: Hold the CSV file handle open in a static
Mutex<Option<(String, File)>> instead of reopening the file on
every write_result call. Add explicit flush after each write.
- server_pro/user_db.rs: Replace hand-rolled Gregorian calendar
math (30+ lines looping from 1970) with chrono::Local::now().
Optimize hash_password() to write username:password directly
into the SHA256 hasher and hex-encode with a pre-allocated
String.
- server_pro/enforcer.rs: Replace allocating error string matching
(format!({}, e).as_str().contains(...)) with direct
QuotaError variant matching. Pass ip_str into flush_to_db()
to avoid a per-call ip.to_string().
- syslog_logger.rs: Move timestamp formatting outside the global
std::sync::Mutex to reduce lock hold time. Replace manual
calendar arithmetic with chrono::Local::now().format().
New dependency: chrono (already pulled in transitively by rusqlite).
Disable release workflow trigger to prevent duplicate builds
when tagging manually with pre-built binaries.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Adds btest-server-pro: multi-user bandwidth test server with SQLite DB,
per-IP quotas (daily/weekly/monthly), inline byte budget enforcement,
TCP multi-connection support, MD5 auth, web dashboard with Chart.js
graphs, quota progress bars, and JSON export.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New in v0.6.0:
- CPU usage: local/remote shown per interval (cpu: 12%/33%)
- Warning indicator (!) when CPU > 70% on either side
- MikroTik CPU encoding: 0x80 | percentage in status byte 1
- CSV includes local_cpu_pct and remote_cpu_pct columns
- Status message format corrected to match MikroTik wire format:
[type:1][cpu:1][00:2][seq:4 LE][bytes:4 LE]
- Removed btest-opensource submodule (fully reimplemented)
- Deleted research/ecsrp5 branch
- Updated all docs: architecture, user-guide, man page, protocol
- Version bumped to 0.6.0
58 tests, all passing. Zero warnings.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New features:
- --syslog <address:port> sends structured events to remote syslog (RFC 5424 UDP)
Events: AUTH_SUCCESS, AUTH_FAILURE, TEST_START, TEST_END, TEST_RESULT
- EC-SRP5 authentication for both client and server modes
- TCP multi-connection support (session tokens, all 3 directions)
Bug fixes since v0.2.0:
- EC-SRP5 server: fixed gamma parity (was 50% auth failure rate)
- EC-SRP5 server: use lift_x not redp1 for verification
- TCP send direction: server sends 12-byte status messages to client
- TCP both direction: TX loop injects status between data packets
- TCP data: send all zeros (no 0x07 header that MikroTik rejected)
- TCP disconnect detection: running flag set on EOF
- UDP multi-connection: unconnected socket accepts all source ports
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Rename package to btest-rs (Rust convention for reimplementations)
- MIT license matching the original btest-opensource license
- LICENSE explicitly credits Alex Samorukov's original work
- Comprehensive README with usage, performance numbers, and credits
- CLI --help references the original project
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Full reimplementation of the MikroTik Bandwidth Test protocol:
- Server mode: accepts connections from MikroTik devices on port 2000
- Client mode: connects to MikroTik btest servers
- TCP and UDP protocols with bidirectional support
- MD5 challenge-response authentication
- Dynamic speed adjustment (1.5x algorithm)
- Status exchange matching original C pselect() behavior
- Docker support with multi-stage build
Tested against MikroTik RouterOS achieving:
- 1.05 Gbps server RX (single connection)
- 530 Mbps client TCP download
- 840 Mbps client TCP upload
- 433 Mbps client UDP download
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
