feat(profiler)!: fork-safe managed exporter

[danielsn]

What does this PR do?

Adds a forksafe exporter where the rust side manages all state.

Motivation

We've had recurrent bugs in Python when it comes to forksafety of code like this. Having a simple API is great.

Additional Notes

Anything else we should know when reviewing?

How to test the change?

See the new tests and the example files.

[datadog-official]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: ca08786 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[pr-commenter]

Benchmarks

Comparison

Benchmark execution time: 2026-01-23 20:01:05

Comparing candidate commit ca08786 in PR branch dsn/forksafe-exporter with baseline commit 534d009 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 57 metrics, 2 unstable metrics.

Candidate

Candidate benchmark details

Group 1

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sdk_test_data/rules-based	execution_time	143.835µs	145.639µs ± 1.917µs	145.310µs ± 0.507µs	145.904µs	147.057µs	152.046µs	165.085µs	13.61%	6.605	57.662	1.31%	0.136µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sdk_test_data/rules-based	execution_time	[145.374µs; 145.905µs] or [-0.182%; +0.182%]	None	None	None

Group 2

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
two way interface	execution_time	17.698µs	25.647µs ± 10.080µs	17.943µs ± 0.113µs	34.776µs	43.983µs	49.474µs	73.103µs	307.41%	1.058	1.049	39.20%	0.713µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
two way interface	execution_time	[24.250µs; 27.044µs] or [-5.447%; +5.447%]	None	None	None

Group 3

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	execution_time	205.051µs	205.752µs ± 0.422µs	205.685µs ± 0.300µs	206.001µs	206.572µs	206.805µs	207.012µs	0.65%	0.611	-0.163	0.20%	0.030µs	1	200
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	throughput	4830627.116op/s	4860249.649op/s ± 9954.489op/s	4861801.326op/s ± 7075.708op/s	4868307.513op/s	4874314.901op/s	4875751.279op/s	4876835.519op/s	0.31%	-0.602	-0.178	0.20%	703.889op/s	1	200
normalization/normalize_name/normalize_name/bad-name	execution_time	18.606µs	18.723µs ± 0.067µs	18.713µs ± 0.048µs	18.761µs	18.847µs	18.898µs	18.928µs	1.15%	0.737	-0.102	0.36%	0.005µs	1	200
normalization/normalize_name/normalize_name/bad-name	throughput	52831854.564op/s	53411297.459op/s ± 190568.812op/s	53437418.609op/s ± 136860.520op/s	53572867.707op/s	53662132.436op/s	53686203.341op/s	53745981.008op/s	0.58%	-0.723	-0.131	0.36%	13475.250op/s	1	200
normalization/normalize_name/normalize_name/good	execution_time	10.818µs	10.891µs ± 0.026µs	10.888µs ± 0.017µs	10.910µs	10.933µs	10.954µs	10.967µs	0.72%	0.250	-0.260	0.24%	0.002µs	1	200
normalization/normalize_name/normalize_name/good	throughput	91184542.897op/s	91818440.096op/s ± 221081.472op/s	91845584.568op/s ± 141095.259op/s	91960155.283op/s	92161337.102op/s	92201115.339op/s	92435593.207op/s	0.64%	-0.238	-0.265	0.24%	15632.821op/s	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	execution_time	[205.693µs; 205.810µs] or [-0.028%; +0.028%]	None	None	None
normalization/normalize_name/normalize_name/Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Long-.Too-Lo...	throughput	[4858870.052op/s; 4861629.245op/s] or [-0.028%; +0.028%]	None	None	None
normalization/normalize_name/normalize_name/bad-name	execution_time	[18.714µs; 18.732µs] or [-0.050%; +0.050%]	None	None	None
normalization/normalize_name/normalize_name/bad-name	throughput	[53384886.455op/s; 53437708.464op/s] or [-0.049%; +0.049%]	None	None	None
normalization/normalize_name/normalize_name/good	execution_time	[10.887µs; 10.895µs] or [-0.033%; +0.033%]	None	None	None
normalization/normalize_name/normalize_name/good	throughput	[91787800.331op/s; 91849079.862op/s] or [-0.033%; +0.033%]	None	None	None

Group 4

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
profile_add_sample2_frames_x1000	execution_time	543.519µs	544.304µs ± 0.634µs	544.134µs ± 0.206µs	544.425µs	545.243µs	545.798µs	550.647µs	1.20%	5.526	49.009	0.12%	0.045µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
profile_add_sample2_frames_x1000	execution_time	[544.216µs; 544.391µs] or [-0.016%; +0.016%]	None	None	None

Group 5

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
receiver_entry_point/report/2597	execution_time	13.160ms	13.468ms ± 0.086ms	13.472ms ± 0.045ms	13.513ms	13.607ms	13.693ms	13.727ms	1.89%	-0.147	1.570	0.63%	0.006ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
receiver_entry_point/report/2597	execution_time	[13.456ms; 13.480ms] or [-0.088%; +0.088%]	None	None	None

Group 6

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
tags/replace_trace_tags	execution_time	2.384µs	2.418µs ± 0.025µs	2.413µs ± 0.007µs	2.420µs	2.469µs	2.478µs	2.661µs	10.29%	5.127	43.053	1.04%	0.002µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
tags/replace_trace_tags	execution_time	[2.414µs; 2.421µs] or [-0.144%; +0.144%]	None	None	None

Group 7

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
credit_card/is_card_number/	execution_time	3.890µs	3.910µs ± 0.002µs	3.910µs ± 0.001µs	3.911µs	3.912µs	3.914µs	3.915µs	0.13%	-5.942	66.405	0.05%	0.000µs	1	200
credit_card/is_card_number/	throughput	255447227.379op/s	255764067.116op/s ± 121024.637op/s	255776916.133op/s ± 41693.865op/s	255811383.608op/s	255854539.233op/s	255878582.169op/s	257073180.634op/s	0.51%	5.989	67.013	0.05%	8557.734op/s	1	200
credit_card/is_card_number/ 3782-8224-6310-005	execution_time	77.066µs	77.664µs ± 0.472µs	77.566µs ± 0.240µs	77.903µs	78.636µs	79.343µs	79.570µs	2.58%	1.531	3.022	0.61%	0.033µs	1	200
credit_card/is_card_number/ 3782-8224-6310-005	throughput	12567544.463op/s	12876386.709op/s ± 77612.395op/s	12892177.032op/s ± 39700.072op/s	12921483.258op/s	12966359.038op/s	12973495.370op/s	12975894.711op/s	0.65%	-1.483	2.824	0.60%	5488.025op/s	1	200
credit_card/is_card_number/ 378282246310005	execution_time	70.642µs	71.122µs ± 0.292µs	71.086µs ± 0.201µs	71.300µs	71.608µs	71.777µs	71.880µs	1.12%	0.273	-0.705	0.41%	0.021µs	1	200
credit_card/is_card_number/ 378282246310005	throughput	13912071.564op/s	14060609.242op/s ± 57595.499op/s	14067494.379op/s ± 39746.391op/s	14097414.929op/s	14144722.075op/s	14152305.577op/s	14155903.077op/s	0.63%	-0.258	-0.721	0.41%	4072.617op/s	1	200
credit_card/is_card_number/37828224631	execution_time	3.892µs	3.910µs ± 0.002µs	3.910µs ± 0.001µs	3.911µs	3.914µs	3.916µs	3.917µs	0.19%	-2.442	27.668	0.05%	0.000µs	1	200
credit_card/is_card_number/37828224631	throughput	255270390.521op/s	255728808.522op/s ± 140701.851op/s	255755907.682op/s ± 50989.021op/s	255798465.209op/s	255839763.898op/s	255872724.667op/s	256951992.870op/s	0.47%	2.481	28.032	0.05%	9949.123op/s	1	200
credit_card/is_card_number/378282246310005	execution_time	67.431µs	67.848µs ± 0.354µs	67.767µs ± 0.240µs	68.031µs	68.540µs	68.770µs	69.863µs	3.09%	1.609	4.761	0.52%	0.025µs	1	200
credit_card/is_card_number/378282246310005	throughput	14313812.742op/s	14739245.970op/s ± 76173.497op/s	14756515.504op/s ± 52330.772op/s	14805425.855op/s	14821134.867op/s	14828384.360op/s	14829981.774op/s	0.50%	-1.546	4.343	0.52%	5386.280op/s	1	200
credit_card/is_card_number/37828224631000521389798	execution_time	44.688µs	45.213µs ± 0.186µs	45.245µs ± 0.104µs	45.340µs	45.493µs	45.546µs	45.562µs	0.70%	-0.583	0.179	0.41%	0.013µs	1	200
credit_card/is_card_number/37828224631000521389798	throughput	21947938.896op/s	22117871.604op/s ± 91098.022op/s	22101740.094op/s ± 50839.460op/s	22169664.946op/s	22313091.338op/s	22365613.705op/s	22377308.844op/s	1.25%	0.605	0.213	0.41%	6441.603op/s	1	200
credit_card/is_card_number/x371413321323331	execution_time	6.033µs	6.038µs ± 0.009µs	6.036µs ± 0.001µs	6.038µs	6.042µs	6.063µs	6.151µs	1.90%	9.918	110.792	0.15%	0.001µs	1	200
credit_card/is_card_number/x371413321323331	throughput	162569330.171op/s	165620588.945op/s ± 252785.494op/s	165661743.846op/s ± 36605.293op/s	165691709.455op/s	165721319.994op/s	165741731.664op/s	165753420.404op/s	0.06%	-9.852	109.515	0.15%	17874.634op/s	1	200
credit_card/is_card_number_no_luhn/	execution_time	3.891µs	3.913µs ± 0.003µs	3.913µs ± 0.002µs	3.915µs	3.917µs	3.919µs	3.922µs	0.22%	-1.478	10.512	0.08%	0.000µs	1	200
credit_card/is_card_number_no_luhn/	throughput	255002313.670op/s	255569880.109op/s ± 205718.934op/s	255557577.777op/s ± 139392.335op/s	255703682.133op/s	255830985.546op/s	255935999.098op/s	257011090.677op/s	0.57%	1.503	10.709	0.08%	14546.525op/s	1	200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	execution_time	65.407µs	65.609µs ± 0.070µs	65.612µs ± 0.047µs	65.659µs	65.725µs	65.754µs	65.782µs	0.26%	-0.217	0.067	0.11%	0.005µs	1	200
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	throughput	15201737.489op/s	15241738.873op/s ± 16328.313op/s	15241185.788op/s ± 10810.161op/s	15251135.362op/s	15269528.297op/s	15282621.164op/s	15288785.676op/s	0.31%	0.223	0.072	0.11%	1154.586op/s	1	200
credit_card/is_card_number_no_luhn/ 378282246310005	execution_time	52.962µs	53.008µs ± 0.030µs	53.002µs ± 0.014µs	53.018µs	53.064µs	53.105µs	53.122µs	0.23%	1.350	2.286	0.06%	0.002µs	1	200
credit_card/is_card_number_no_luhn/ 378282246310005	throughput	18824421.829op/s	18865206.695op/s ± 10595.321op/s	18867209.733op/s ± 5107.469op/s	18871681.626op/s	18878333.243op/s	18880941.502op/s	18881616.858op/s	0.08%	-1.346	2.272	0.06%	749.202op/s	1	200
credit_card/is_card_number_no_luhn/37828224631	execution_time	3.892µs	3.912µs ± 0.003µs	3.912µs ± 0.002µs	3.914µs	3.917µs	3.920µs	3.921µs	0.23%	-0.753	8.002	0.08%	0.000µs	1	200
credit_card/is_card_number_no_luhn/37828224631	throughput	255059977.997op/s	255623893.207op/s ± 204551.172op/s	255647285.530op/s ± 116078.152op/s	255750958.379op/s	255865735.764op/s	255950063.484op/s	256951327.269op/s	0.51%	0.776	8.144	0.08%	14463.952op/s	1	200
credit_card/is_card_number_no_luhn/378282246310005	execution_time	49.741µs	49.793µs ± 0.036µs	49.789µs ± 0.019µs	49.808µs	49.850µs	49.879µs	50.019µs	0.46%	2.363	11.865	0.07%	0.003µs	1	200
credit_card/is_card_number_no_luhn/378282246310005	throughput	19992293.518op/s	20082959.097op/s ± 14555.691op/s	20084693.455op/s ± 7546.101op/s	20091918.528op/s	20101596.670op/s	20102864.518op/s	20104018.793op/s	0.10%	-2.345	11.728	0.07%	1029.243op/s	1	200
credit_card/is_card_number_no_luhn/37828224631000521389798	execution_time	44.693µs	45.177µs ± 0.180µs	45.201µs ± 0.106µs	45.285µs	45.454µs	45.502µs	45.564µs	0.80%	-0.414	-0.151	0.40%	0.013µs	1	200
credit_card/is_card_number_no_luhn/37828224631000521389798	throughput	21946979.853op/s	22135287.789op/s ± 88514.811op/s	22123386.765op/s ± 51969.324op/s	22185112.129op/s	22299363.295op/s	22352479.023op/s	22375087.296op/s	1.14%	0.434	-0.129	0.40%	6258.942op/s	1	200
credit_card/is_card_number_no_luhn/x371413321323331	execution_time	6.027µs	6.036µs ± 0.011µs	6.034µs ± 0.003µs	6.038µs	6.044µs	6.106µs	6.110µs	1.27%	5.355	31.897	0.18%	0.001µs	1	200
credit_card/is_card_number_no_luhn/x371413321323331	throughput	163660592.623op/s	165668975.373op/s ± 297456.308op/s	165730917.103op/s ± 79902.561op/s	165797343.767op/s	165853903.301op/s	165902166.753op/s	165927370.275op/s	0.12%	-5.327	31.648	0.18%	21033.337op/s	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
credit_card/is_card_number/	execution_time	[3.910µs; 3.910µs] or [-0.007%; +0.007%]	None	None	None
credit_card/is_card_number/	throughput	[255747294.265op/s; 255780839.967op/s] or [-0.007%; +0.007%]	None	None	None
credit_card/is_card_number/ 3782-8224-6310-005	execution_time	[77.599µs; 77.730µs] or [-0.084%; +0.084%]	None	None	None
credit_card/is_card_number/ 3782-8224-6310-005	throughput	[12865630.377op/s; 12887143.040op/s] or [-0.084%; +0.084%]	None	None	None
credit_card/is_card_number/ 378282246310005	execution_time	[71.081µs; 71.162µs] or [-0.057%; +0.057%]	None	None	None
credit_card/is_card_number/ 378282246310005	throughput	[14052627.060op/s; 14068591.424op/s] or [-0.057%; +0.057%]	None	None	None
credit_card/is_card_number/37828224631	execution_time	[3.910µs; 3.911µs] or [-0.008%; +0.008%]	None	None	None
credit_card/is_card_number/37828224631	throughput	[255709308.599op/s; 255748308.445op/s] or [-0.008%; +0.008%]	None	None	None
credit_card/is_card_number/378282246310005	execution_time	[67.799µs; 67.897µs] or [-0.072%; +0.072%]	None	None	None
credit_card/is_card_number/378282246310005	throughput	[14728689.056op/s; 14749802.884op/s] or [-0.072%; +0.072%]	None	None	None
credit_card/is_card_number/37828224631000521389798	execution_time	[45.187µs; 45.239µs] or [-0.057%; +0.057%]	None	None	None
credit_card/is_card_number/37828224631000521389798	throughput	[22105246.295op/s; 22130496.914op/s] or [-0.057%; +0.057%]	None	None	None
credit_card/is_card_number/x371413321323331	execution_time	[6.037µs; 6.039µs] or [-0.021%; +0.021%]	None	None	None
credit_card/is_card_number/x371413321323331	throughput	[165585555.307op/s; 165655622.584op/s] or [-0.021%; +0.021%]	None	None	None
credit_card/is_card_number_no_luhn/	execution_time	[3.912µs; 3.913µs] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/	throughput	[255541369.443op/s; 255598390.775op/s] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	execution_time	[65.600µs; 65.619µs] or [-0.015%; +0.015%]	None	None	None
credit_card/is_card_number_no_luhn/ 3782-8224-6310-005	throughput	[15239475.925op/s; 15244001.820op/s] or [-0.015%; +0.015%]	None	None	None
credit_card/is_card_number_no_luhn/ 378282246310005	execution_time	[53.004µs; 53.012µs] or [-0.008%; +0.008%]	None	None	None
credit_card/is_card_number_no_luhn/ 378282246310005	throughput	[18863738.285op/s; 18866675.105op/s] or [-0.008%; +0.008%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631	execution_time	[3.912µs; 3.912µs] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631	throughput	[255595544.382op/s; 255652242.032op/s] or [-0.011%; +0.011%]	None	None	None
credit_card/is_card_number_no_luhn/378282246310005	execution_time	[49.788µs; 49.798µs] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number_no_luhn/378282246310005	throughput	[20080941.818op/s; 20084976.376op/s] or [-0.010%; +0.010%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631000521389798	execution_time	[45.152µs; 45.202µs] or [-0.055%; +0.055%]	None	None	None
credit_card/is_card_number_no_luhn/37828224631000521389798	throughput	[22123020.487op/s; 22147555.090op/s] or [-0.055%; +0.055%]	None	None	None
credit_card/is_card_number_no_luhn/x371413321323331	execution_time	[6.035µs; 6.038µs] or [-0.025%; +0.025%]	None	None	None
credit_card/is_card_number_no_luhn/x371413321323331	throughput	[165627750.790op/s; 165710199.957op/s] or [-0.025%; +0.025%]	None	None	None

Group 8

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
profile_add_sample_frames_x1000	execution_time	3.975ms	3.979ms ± 0.007ms	3.979ms ± 0.001ms	3.980ms	3.981ms	3.986ms	4.067ms	2.22%	12.010	157.284	0.17%	0.000ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
profile_add_sample_frames_x1000	execution_time	[3.978ms; 3.980ms] or [-0.023%; +0.023%]	None	None	None

Group 9

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
write only interface	execution_time	1.254µs	3.141µs ± 1.413µs	2.970µs ± 0.024µs	2.993µs	3.297µs	13.624µs	14.981µs	404.42%	7.549	57.427	44.87%	0.100µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
write only interface	execution_time	[2.945µs; 3.337µs] or [-6.234%; +6.234%]	None	None	None

Group 10

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
benching deserializing traces from msgpack to their internal representation	execution_time	48.314ms	48.683ms ± 1.011ms	48.537ms ± 0.073ms	48.614ms	48.827ms	56.594ms	56.819ms	17.06%	7.504	56.341	2.07%	0.071ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
benching deserializing traces from msgpack to their internal representation	execution_time	[48.543ms; 48.823ms] or [-0.288%; +0.288%]	None	None	None

Group 11

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
ip_address/quantize_peer_ip_address_benchmark	execution_time	4.968µs	5.040µs ± 0.037µs	5.045µs ± 0.037µs	5.066µs	5.100µs	5.103µs	5.104µs	1.18%	0.099	-1.226	0.73%	0.003µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
ip_address/quantize_peer_ip_address_benchmark	execution_time	[5.035µs; 5.045µs] or [-0.102%; +0.102%]	None	None	None

Group 12

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
sql/obfuscate_sql_string	execution_time	89.904µs	90.186µs ± 0.222µs	90.164µs ± 0.063µs	90.225µs	90.356µs	90.729µs	92.806µs	2.93%	8.613	96.424	0.25%	0.016µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sql/obfuscate_sql_string	execution_time	[90.156µs; 90.217µs] or [-0.034%; +0.034%]	None	None	None

Group 13

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
single_flag_killswitch/rules-based	execution_time	189.177ns	192.181ns ± 2.194ns	192.092ns ± 1.487ns	193.232ns	196.520ns	198.314ns	199.133ns	3.67%	0.777	0.269	1.14%	0.155ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
single_flag_killswitch/rules-based	execution_time	[191.877ns; 192.485ns] or [-0.158%; +0.158%]	None	None	None

Group 14

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
normalization/normalize_trace/test_trace	execution_time	240.770ns	255.522ns ± 14.269ns	249.778ns ± 7.116ns	268.003ns	283.039ns	294.419ns	294.887ns	18.06%	0.970	-0.073	5.57%	1.009ns	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
normalization/normalize_trace/test_trace	execution_time	[253.545ns; 257.500ns] or [-0.774%; +0.774%]	None	None	None

Group 15

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
redis/obfuscate_redis_string	execution_time	33.464µs	34.216µs ± 1.284µs	33.635µs ± 0.069µs	33.743µs	36.987µs	37.031µs	37.457µs	11.36%	1.696	0.911	3.74%	0.091µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
redis/obfuscate_redis_string	execution_time	[34.038µs; 34.394µs] or [-0.520%; +0.520%]	None	None	None

Group 16

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
concentrator/add_spans_to_concentrator	execution_time	10.706ms	10.736ms ± 0.014ms	10.735ms ± 0.007ms	10.742ms	10.759ms	10.774ms	10.797ms	0.58%	0.891	1.967	0.13%	0.001ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
concentrator/add_spans_to_concentrator	execution_time	[10.734ms; 10.738ms] or [-0.018%; +0.018%]	None	None	None

Group 17

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
benching serializing traces from their internal representation to msgpack	execution_time	14.558ms	14.649ms ± 0.035ms	14.648ms ± 0.018ms	14.665ms	14.698ms	14.777ms	14.821ms	1.18%	1.543	5.001	0.24%	0.002ms	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
benching serializing traces from their internal representation to msgpack	execution_time	[14.644ms; 14.654ms] or [-0.033%; +0.033%]	None	None	None

Group 18

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
benching string interning on wordpress profile	execution_time	161.454µs	162.413µs ± 0.381µs	162.421µs ± 0.231µs	162.640µs	162.876µs	163.285µs	165.013µs	1.60%	1.580	10.013	0.23%	0.027µs	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
benching string interning on wordpress profile	execution_time	[162.360µs; 162.466µs] or [-0.033%; +0.033%]	None	None	None

Group 19

cpu_model	git_commit_sha	git_commit_date	git_branch
Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	ca08786	1769197488	dsn/forksafe-exporter

scenario	metric	min	mean ± sd	median ± mad	p75	p95	p99	max	peak_to_median_ratio	skewness	kurtosis	cv	sem	runs	sample_size
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	execution_time	535.446µs	536.522µs ± 0.841µs	536.267µs ± 0.394µs	536.819µs	538.216µs	539.822µs	540.423µs	0.77%	1.975	4.710	0.16%	0.059µs	1	200
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	throughput	1850402.974op/s	1863861.230op/s ± 2911.476op/s	1864743.363op/s ± 1369.805op/s	1865735.730op/s	1866632.829op/s	1867139.620op/s	1867600.731op/s	0.15%	-1.962	4.642	0.16%	205.872op/s	1	200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	execution_time	380.257µs	381.580µs ± 0.830µs	381.824µs ± 0.765µs	382.340µs	382.732µs	382.885µs	383.028µs	0.32%	-0.041	-1.546	0.22%	0.059µs	1	200
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	throughput	2610774.302op/s	2620696.916op/s ± 5704.136op/s	2619010.843op/s ± 5253.643op/s	2626368.131op/s	2628646.473op/s	2629442.685op/s	2629801.274op/s	0.41%	0.044	-1.546	0.22%	403.343op/s	1	200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	execution_time	189.249µs	189.732µs ± 0.202µs	189.682µs ± 0.110µs	189.828µs	190.145µs	190.276µs	190.324µs	0.34%	0.870	0.309	0.11%	0.014µs	1	200
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	throughput	5254186.779op/s	5270610.878op/s ± 5612.877op/s	5271968.343op/s ± 3048.055op/s	5274368.062op/s	5277333.446op/s	5279373.187op/s	5284050.932op/s	0.23%	-0.865	0.301	0.11%	396.890op/s	1	200
normalization/normalize_service/normalize_service/[empty string]	execution_time	36.427µs	36.549µs ± 0.046µs	36.545µs ± 0.029µs	36.577µs	36.623µs	36.654µs	36.785µs	0.66%	0.721	2.741	0.13%	0.003µs	1	200
normalization/normalize_service/normalize_service/[empty string]	throughput	27184715.093op/s	27360555.536op/s ± 34435.482op/s	27363768.782op/s ± 21963.193op/s	27384019.761op/s	27411460.224op/s	27436692.375op/s	27452489.522op/s	0.32%	-0.706	2.675	0.13%	2434.956op/s	1	200
normalization/normalize_service/normalize_service/test_ASCII	execution_time	45.922µs	46.065µs ± 0.083µs	46.060µs ± 0.056µs	46.114µs	46.201µs	46.304µs	46.354µs	0.64%	0.665	0.598	0.18%	0.006µs	1	200
normalization/normalize_service/normalize_service/test_ASCII	throughput	21572918.185op/s	21708668.783op/s ± 39191.382op/s	21710616.435op/s ± 26354.057op/s	21738189.067op/s	21766260.740op/s	21773858.430op/s	21776191.256op/s	0.30%	-0.653	0.569	0.18%	2771.249op/s	1	200

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	execution_time	[536.405µs; 536.638µs] or [-0.022%; +0.022%]	None	None	None
normalization/normalize_service/normalize_service/A0000000000000000000000000000000000000000000000000...	throughput	[1863457.727op/s; 1864264.733op/s] or [-0.022%; +0.022%]	None	None	None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	execution_time	[381.465µs; 381.695µs] or [-0.030%; +0.030%]	None	None	None
normalization/normalize_service/normalize_service/Data🐨dog🐶 繋がっ⛰てて	throughput	[2619906.378op/s; 2621487.454op/s] or [-0.030%; +0.030%]	None	None	None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	execution_time	[189.704µs; 189.760µs] or [-0.015%; +0.015%]	None	None	None
normalization/normalize_service/normalize_service/Test Conversion 0f Weird !@#$%^&**() Characters	throughput	[5269832.987op/s; 5271388.769op/s] or [-0.015%; +0.015%]	None	None	None
normalization/normalize_service/normalize_service/[empty string]	execution_time	[36.543µs; 36.555µs] or [-0.017%; +0.017%]	None	None	None
normalization/normalize_service/normalize_service/[empty string]	throughput	[27355783.110op/s; 27365327.963op/s] or [-0.017%; +0.017%]	None	None	None
normalization/normalize_service/normalize_service/test_ASCII	execution_time	[46.053µs; 46.076µs] or [-0.025%; +0.025%]	None	None	None
normalization/normalize_service/normalize_service/test_ASCII	throughput	[21703237.235op/s; 21714100.332op/s] or [-0.025%; +0.025%]	None	None	None

Baseline

Omitted due to size.

[dd-octo-sts]

Artifact Size Benchmark Report

aarch64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.a	91.22 MB	91.81 MB	+.65% (+610.31 KB) 🔍
/aarch64-alpine-linux-musl/lib/libdatadog_profiling.so	8.38 MB	8.44 MB	+.74% (+64.00 KB) 🔍

aarch64-apple-darwin

Artifact	Baseline	Commit	Change
/aarch64-apple-darwin/lib/libdatadog_profiling.a	62.36 MB	62.80 MB	+.70% (+451.63 KB) 🔍
/aarch64-apple-darwin/lib/libdatadog_profiling.dylib	9.41 MB	9.48 MB	+.69% (+67.09 KB) 🔍

aarch64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.a	105.54 MB	106.15 MB	+.57% (+624.16 KB) 🔍
/aarch64-unknown-linux-gnu/lib/libdatadog_profiling.so	10.67 MB	10.76 MB	+.82% (+90.59 KB) 🔍

libdatadog-x64-windows

Artifact	Baseline	Commit	Change
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.dll	25.08 MB	25.29 MB	+.82% (+211.00 KB) 🔍
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.lib	73.49 KB	75.59 KB	+2.85% (+2.09 KB) ⚠️
/libdatadog-x64-windows/debug/dynamic/datadog_profiling_ffi.pdb	165.91 MB	167.33 MB	+.85% (+1.42 MB) 🔍
/libdatadog-x64-windows/debug/static/datadog_profiling_ffi.lib	827.93 MB	845.79 MB	+2.15% (+17.85 MB) ⚠️
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.dll	9.54 MB	9.62 MB	+.76% (+74.50 KB) 🔍
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.lib	73.49 KB	75.59 KB	+2.85% (+2.09 KB) ⚠️
/libdatadog-x64-windows/release/dynamic/datadog_profiling_ffi.pdb	22.94 MB	23.12 MB	+.78% (+184.00 KB) 🔍
/libdatadog-x64-windows/release/static/datadog_profiling_ffi.lib	47.90 MB	48.29 MB	+.80% (+395.48 KB) 🔍

libdatadog-x86-windows

Artifact	Baseline	Commit	Change
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.dll	21.15 MB	21.34 MB	+.89% (+193.50 KB) 🔍
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.lib	74.62 KB	76.76 KB	+2.86% (+2.13 KB) ⚠️
/libdatadog-x86-windows/debug/dynamic/datadog_profiling_ffi.pdb	169.89 MB	171.31 MB	+.83% (+1.42 MB) 🔍
/libdatadog-x86-windows/debug/static/datadog_profiling_ffi.lib	814.90 MB	832.94 MB	+2.21% (+18.04 MB) ⚠️
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.dll	7.22 MB	7.27 MB	+.79% (+59.00 KB) 🔍
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.lib	74.62 KB	76.76 KB	+2.86% (+2.13 KB) ⚠️
/libdatadog-x86-windows/release/dynamic/datadog_profiling_ffi.pdb	24.51 MB	24.73 MB	+.86% (+216.00 KB) 🔍
/libdatadog-x86-windows/release/static/datadog_profiling_ffi.lib	43.62 MB	44.00 MB	+.86% (+385.38 KB) 🔍

x86_64-alpine-linux-musl

Artifact	Baseline	Commit	Change
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.a	79.72 MB	80.27 MB	+.68% (+560.65 KB) 🔍
/x86_64-alpine-linux-musl/lib/libdatadog_profiling.so	9.85 MB	9.90 MB	+.55% (+56.00 KB) 🔍

x86_64-apple-darwin

Artifact	Baseline	Commit	Change
/x86_64-apple-darwin/lib/libdatadog_profiling.a	64.25 MB	64.68 MB	+.66% (+440.21 KB) 🔍
/x86_64-apple-darwin/lib/libdatadog_profiling.dylib	10.44 MB	10.51 MB	+.62% (+66.56 KB) 🔍

x86_64-unknown-linux-gnu

Artifact	Baseline	Commit	Change
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.a	99.56 MB	100.11 MB	+.55% (+567.08 KB) 🔍
/x86_64-unknown-linux-gnu/lib/libdatadog_profiling.so	11.41 MB	11.48 MB	+.64% (+75.38 KB) 🔍

[codecov-commenter]

Codecov Report

❌ Patch coverage is 94.81743% with 44 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.46%. Comparing base (99be5d7) to head (3244838).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1464      +/-   ##
==========================================
+ Coverage   71.16%   71.46%   +0.29%     
==========================================
  Files         419      420       +1     
  Lines       67165    67965     +800     
==========================================
+ Hits        47795    48568     +773     
- Misses      19370    19397      +27     

Components	Coverage Δ
libdd-crashtracker	61.41% <ø> (ø)
libdd-crashtracker-ffi	16.50% <ø> (ø)
libdd-alloc	98.73% <ø> (ø)
libdd-data-pipeline	86.28% <ø> (ø)
libdd-data-pipeline-ffi	78.57% <ø> (ø)
libdd-common	80.97% <ø> (+0.12%)	⬆️
libdd-common-ffi	74.54% <ø> (+0.34%)	⬆️
libdd-telemetry	59.82% <ø> (ø)
libdd-telemetry-ffi	21.17% <ø> (ø)
libdd-dogstatsd-client	83.75% <ø> (ø)
datadog-ipc	82.60% <ø> (ø)
libdd-profiling	81.72% <94.81%> (+1.05%)	⬆️
libdd-profiling-ffi	64.90% <95.18%> (+2.43%)	⬆️
datadog-sidecar	35.02% <ø> (ø)
datdog-sidecar-ffi	10.25% <ø> (ø)
spawn-worker	55.18% <ø> (ø)
libdd-tinybytes	93.43% <ø> (ø)
libdd-trace-normalization	82.33% <ø> (ø)
libdd-trace-obfuscation	94.17% <ø> (ø)
libdd-trace-protobuf	61.18% <ø> (ø)
libdd-trace-utils	89.45% <ø> (ø)
datadog-tracer-flare	63.49% <ø> (ø)
libdd-log	75.57% <ø> (ø)

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