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fix: upload-to-first-download latency - #1444

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fix/upload-perf
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fix: upload-to-first-download latency#1444
LexLuthr wants to merge 2 commits into
mainfrom
fix/upload-perf

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@LexLuthr

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fixes #1399

@FilOzzy FilOzzy added the team/fs-wg Items being worked on or tracked by the "FS Working Group". See FilOzone/github-mgmt #10 label Aug 19, 2026
@FilOzzy FilOzzy added this to FOC Aug 19, 2026
@github-project-automation github-project-automation Bot moved this to 📌 Triage in FOC Aug 19, 2026
@LexLuthr

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Latest test summary — Provider 23

The post-upload availability problem appears fixed.

  • 168/168 uploads succeeded.
  • Every immediate retrieval succeeded on attempt 1 with HTTP 200.
  • 24/24 full-download verification checks passed.
  • Upload complete → actual first byte:
  • p50: 0.442 s
  • p90: 0.516 s
  • p95: 0.552 s
  • Worst sample: 0.976 s
  • Normal shared-connection TTFB p50: 0.436 s
  • Cold-connection TTFB p50: 0.878 s

The immediate first-byte p50 is only about 5 ms slower than ordinary shared-connection TTFB. There is no longer a separate five-second piece-readiness wait after upload completion.

@LexLuthr
LexLuthr marked this pull request as ready for review August 21, 2026 12:07
@LexLuthr
LexLuthr requested review from a team and ZenGround0 as code owners August 21, 2026 12:07
@FilOzzy FilOzzy moved this from 📌 Triage to 🔎 Awaiting review in FOC Aug 25, 2026
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PDP: Optimize upload-to-first-download latency

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