DEBUG-2509 Add option to skip checks when building profiling

[p-datadog]

What does this PR do?

Adds -T option to build-profiling-ffi.sh script to skip post-build checks, which is frequently done during development.

Also adds a usage blurb which can be printed with -h option, and prints the usage blurb if the required positional parameter of destination directory is not provided instead of failing with a non-descriptive error.

Motivation

Current diagnostics are not indicating what is wrong when the positional argument is not supplied.

Additional Notes

None

How to test the change?

Run ./build-profiling-ffi.sh -h or ./build-profiling-ffi.sh -T.

[pr-commenter]

Benchmarks

Comparison

Parameters

	Baseline	Candidate
config	baseline	candidate
git_branch	main	optional-tests
git_commit_date	1719511185	1719518421
git_commit_sha	15aa48d	8d95f19
iterations	714.0	708.0

See matching parameters

	Baseline	Candidate
ci_job_date	1719518657	1719518657
ci_job_id	555647953	555647953
ci_pipeline_id	37785626	37785626
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

Candidate

Candidate benchmark details

Group 1

iterations	config	cpu_model	ci_job_date	ci_job_id	ci_pipeline_id	git_commit_sha	git_commit_date	git_branch
708.0	candidate	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	1719518657	555647953	37785626	8d95f19	1719518421	optional-tests

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	70.480µs	70.555µs ± 0.031µs	70.557µs ± 0.023µs	70.577µs	70.608µs	70.626µs	70.629µs	0.10%	0.066	-0.576	0.04%	0.003µs	1	100

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sql/obfuscate_sql_string	execution_time	[70.549µs; 70.562µs] or [-0.009%; +0.009%]	None	None	None

Warnings

Scenario: sql/obfuscate_sql_string, Metric: execution_time

Measurements are autocorrelated.

Autocorrelation is present for lags 1..10.

The measurements are not independent, thus confidence intervals
may be less precise.
---------------------------------------------------------------------------

Scenario: sql/obfuscate_sql_string, Metric: execution_time

Sample size is 100, which is lower than 105.

The minimal sample size in case of normal distribution to achieve significance
level of 0.05 for difference of means with effect size Cohen's d = 0.5 must be at
least 105.

The conclusions from confidence intervals may be invalid.
---------------------------------------------------------------------------

Baseline

Baseline benchmark details

Group 1

iterations	config	cpu_model	ci_job_date	ci_job_id	ci_pipeline_id	git_commit_sha	git_commit_date	git_branch
714.0	baseline	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	1719518657	555647953	37785626	15aa48d	1719511185	main

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	69.968µs	70.030µs ± 0.034µs	70.029µs ± 0.028µs	70.055µs	70.086µs	70.095µs	70.103µs	0.11%	0.075	-0.836	0.05%	0.003µs	1	100

scenario	metric	95% CI mean	Shapiro-Wilk pvalue	Ljung-Box pvalue (lag=1)	Dip test pvalue
sql/obfuscate_sql_string	execution_time	[70.023µs; 70.037µs] or [-0.009%; +0.009%]	None	None	None

Warnings

Scenario: sql/obfuscate_sql_string, Metric: execution_time

Measurements are autocorrelated.

Autocorrelation is present for lags 1..10.

The measurements are not independent, thus confidence intervals
may be less precise.
---------------------------------------------------------------------------

Scenario: sql/obfuscate_sql_string, Metric: execution_time

Sample size is 100, which is lower than 105.

The minimal sample size in case of normal distribution to achieve significance
level of 0.05 for difference of means with effect size Cohen's d = 0.5 must be at
least 105.

The conclusions from confidence intervals may be invalid.
---------------------------------------------------------------------------

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.37%. Comparing base (15aa48d) to head (8d95f19).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #513   +/-   ##
=======================================
  Coverage   70.37%   70.37%           
=======================================
  Files         204      204           
  Lines       27824    27824           
=======================================
  Hits        19581    19581           
  Misses       8243     8243           

Components	Coverage Δ
crashtracker	16.70% <ø> (ø)
datadog-alloc	98.76% <ø> (ø)
data-pipeline	51.15% <ø> (ø)
data-pipeline-ffi	0.00% <ø> (ø)
ddcommon	86.10% <ø> (ø)
ddcommon-ffi	74.15% <ø> (ø)
ddtelemetry	59.37% <ø> (ø)
ipc	84.66% <ø> (ø)
profiling	78.63% <ø> (ø)
profiling-ffi	58.19% <ø> (ø)
serverless	0.00% <ø> (ø)
sidecar	36.19% <ø> (ø)
sidecar-ffi	0.00% <ø> (ø)
spawn-worker	54.98% <ø> (ø)
trace-mini-agent	69.70% <ø> (ø)
trace-normalization	97.79% <ø> (ø)
trace-obfuscation	95.75% <ø> (ø)
trace-protobuf	77.16% <ø> (ø)
trace-utils	91.21% <ø> (ø)

[ivoanjo]

LGTM 👍

I know @r1viollet has been working to get rid of this script, but this seems a useful + harmless UX improvement to have until we can kill it off :)