Comparing
perf/emit-hot-path
(2f8061b
) withmain
(609ad97
)-50%
- Improvement
- 6
- Regression
- 8
- Untouched
- 82
No successful run was found on main ( 08798bc) during the generation of this report, so 609ad97 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.
Different runtime environments detected
Some benchmarks with significant performance changes were compared across different runtime environments, which may affect the accuracy of the results. Learn more about regression causes.Benchmarks
96 total
status match
packages/evlog/bench/core/sampling.bench.ts::tail sampling (shouldKeep)-50%
25.4 µs51.1 µs
no match (fast path)
packages/evlog/bench/core/sampling.bench.ts::tail sampling (shouldKeep)-44%
25.6 µs45.4 µs
duration match
packages/evlog/bench/core/sampling.bench.ts::tail sampling (shouldKeep)-43%
25.2 µs44.6 µs
path glob match
packages/evlog/bench/core/sampling.bench.ts::tail sampling (shouldKeep)-43%
25.4 µs44.6 µs
push 1000 events (no flush)
packages/evlog/bench/core/client.bench.ts::pipeline — push throughput-28%
1.8 ms2.6 ms
winston — 4 separate log calls
packages/evlog/bench/comparison/vs-alternatives.bench.ts::wide event lifecycle (evlog-native pattern)-27%
431.6 µs592.1 µs
push 100 events (no flush)
packages/evlog/bench/core/client.bench.ts::pipeline — push throughput-25%
424.2 µs563.9 µs
winston
packages/evlog/bench/comparison/vs-alternatives.bench.ts::deep nested log-20%
452.6 µs565.5 µs
Firefox Linux
packages/evlog/bench/core/enrichers.bench.ts::createUserAgentEnricher×2.5
219.3 µs87.5 µs
with traceparent
packages/evlog/bench/core/enrichers.bench.ts::createTraceContextEnricher+40%
472.7 µs337.6 µs
emit minimal event
packages/evlog/bench/core/logger.bench.ts::log.emit()+39%
132.5 µs95.6 µs
emit + JSON.stringify
packages/evlog/bench/core/format.bench.ts::JSON serialization (production mode)+35%
144.5 µs107 µs
evlog
packages/evlog/bench/comparison/vs-alternatives.bench.ts::simple string log+29%
149.1 µs115.2 µs
full emit with sampling (likely sampled out)
packages/evlog/bench/core/sampling.bench.ts::head + tail sampling combined+17%
72 µs61.3 µs
evlog
packages/evlog/bench/comparison/vs-alternatives.bench.ts::burst — 100 sequential logs+10%
917.2 µs837.3 µs
no sampling configured
packages/evlog/bench/core/sampling.bench.ts::head sampling+9%
215.7 µs197.7 µs
with sampling rates
packages/evlog/bench/core/sampling.bench.ts::head sampling+7%
130.3 µs121.6 µs
evlog
packages/evlog/bench/comparison/vs-alternatives.bench.ts::structured log (5 fields)+6%
128.7 µs121 µs
small payload (2 fields)
packages/evlog/bench/core/logger.bench.ts::log.set() payload sizes+5%
104.2 µs99 µs
evlog (createLogger + set + emit)
packages/evlog/bench/comparison/vs-alternatives.bench.ts::child / scoped logger+5%
98.9 µs94.3 µs
evlog — accumulate + emit (1 event)
packages/evlog/bench/comparison/vs-alternatives.bench.ts::wide event lifecycle (evlog-native pattern)+4%
160.1 µs153.4 µs
full emit with force-keep (tail sampling hit)
packages/evlog/bench/core/sampling.bench.ts::head + tail sampling combined+4%
130 µs124.8 µs
emit + pretty print
packages/evlog/bench/core/format.bench.ts::pretty print (development mode)+4%
124.6 µs119.7 µs
medium payload (50 fields)
packages/evlog/bench/core/logger.bench.ts::log.set() payload sizes+3%
185.4 µs179.2 µs
full lifecycle (create + set + emit)
packages/evlog/bench/core/logger.bench.ts::log.emit()+3%
168.4 µs163.4 µs
Commits
Click on a commit to change the comparison rangeBase
main
609ad97
-50.38%
perf(core): eliminate allocations in emit hot path
2f8061b
24 days ago
by HugoRCD