chore(profiling): add lock profiling support to ddup

[sanchda]

I'm working on adding some tests to this new libdatadog stuff and realized I never pushed the lock code. Oops!

Tests incoming in a separate PR, this is all still guarded behind a flag.

Checklist

• [x] Change(s) are motivated and described in the PR description
• [x] Testing strategy is described if automated tests are not included in the PR
• [x] Risks are described (performance impact, potential for breakage, maintainability)
• [x] Change is maintainable (easy to change, telemetry, documentation)
• [x] Library release note guidelines are followed or label changelog/no-changelog is set
• [x] Documentation is included (in-code, generated user docs, public corp docs)
• [x] Backport labels are set (if applicable)
• [x] If this PR changes the public interface, I've notified @DataDog/apm-tees.
• [x] If change touches code that signs or publishes builds or packages, or handles credentials of any kind, I've requested a review from @DataDog/security-design-and-guidance.

Reviewer Checklist

• [ ] Title is accurate
• [ ] All changes are related to the pull request's stated goal
• [ ] Description motivates each change
• [ ] Avoids breaking API changes
• [ ] Testing strategy adequately addresses listed risks
• [ ] Change is maintainable (easy to change, telemetry, documentation)
• [ ] Release note makes sense to a user of the library
• [ ] Author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• [ ] Backport labels are set in a manner that is consistent with the release branch maintenance policy

[datadog-dd-trace-py-rkomorn[bot]]

Datadog Report

Branch report: sanchda/ddup_add_lock_profiling Commit report: eba9db8 Test service: dd-trace-py

:white_check_mark: 0 Failed, 188 Passed, 862 Skipped, 7m 31.69s Total duration (1h 15m 42.29s time saved)

[pr-commenter[bot]]

Benchmarks

Benchmark execution time: 2024-04-18 14:57:08

Comparing candidate commit 49a8ebdb2454f0c09e57c7828264f332d69e0dbc in PR branch sanchda/ddup_add_lock_profiling with baseline commit 7904d56f27ad55fcb7f6bdc56b917fcd5b7484ed in branch main.

Found 0 performance improvements and 2 performance regressions! Performance is the same for 199 metrics, 9 unstable metrics.

scenario:httppropagationinject-with_all

• 🟥 max_rss_usage [+745.772KB; +795.143KB] or [+3.525%; +3.759%]

scenario:httppropagationinject-with_dd_origin

• 🟥 max_rss_usage [+0.995MB; +1.049MB] or [+4.767%; +5.021%]