Disable zero copy writes in the StreamWriter

[bdraco]

python/cpython#127656

Zero copy writes will return in a future version once a new cpython version is released. #10137 will restore them in the future.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.74%. Comparing base (703ce61) to head (e3760a3).
Report is 330 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10125      +/-   ##
==========================================
- Coverage   98.76%   98.74%   -0.02%     
==========================================
  Files         122      122              
  Lines       36958    36956       -2     
  Branches     4408     4411       +3     
==========================================
- Hits        36500    36494       -6     
- Misses        311      315       +4     
  Partials      147      147              

Flag	Coverage Δ
CI-GHA	98.63% <100.00%> (-0.02%)	⬇️
OS-Linux	98.32% <100.00%> (-0.02%)	⬇️
OS-Windows	96.17% <100.00%> (-0.02%)	⬇️
OS-macOS	97.42% <100.00%> (-0.02%)	⬇️
Py-3.10.11	97.27% <100.00%> (-0.01%)	⬇️
Py-3.10.15	97.81% <100.00%> (-0.02%)	⬇️
Py-3.11.10	97.85% <100.00%> (-0.01%)	⬇️
Py-3.11.9	97.32% <100.00%> (-0.03%)	⬇️
Py-3.12.7	98.37% <100.00%> (-0.02%)	⬇️
Py-3.13.0	97.18% <100.00%> (-0.02%)	⬇️
Py-3.13.1	98.34% <100.00%> (-0.02%)	⬇️
Py-3.9.13	97.19% <100.00%> (-0.01%)	⬇️
Py-3.9.20	97.73% <100.00%> (-0.06%)	⬇️
Py-pypy7.3.16	97.34% <100.00%> (-0.01%)	⬇️
VM-macos	97.42% <100.00%> (-0.02%)	⬇️
VM-ubuntu	98.32% <100.00%> (-0.02%)	⬇️
VM-windows	96.17% <100.00%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[codspeed-hq]

CodSpeed Performance Report

Merging #10125 will degrade performances by 21.19%

_{Comparing disable_zero_copy (e3760a3) with master (703ce61)}

Summary

❌ 1 (👁 1) regressions
✅ 46 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	disable_zero_copy	Change
👁	test_one_hundred_get_requests_with_512kib_chunked_payload[pyloop]	168 ms	213.2 ms	-21.19%

[patchback]

Backport to 3.11: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.11/d58d2c3d0f8755dcd982071e3dc12e9f14db55f6/pr-10125

Backported as #10126

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[patchback]

Backport to 3.12: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.12/d58d2c3d0f8755dcd982071e3dc12e9f14db55f6/pr-10125

Backported as #10127

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.