perf(ai): stream Gemini prompt responses#564
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(cherry picked from commit fb7405f)
(cherry picked from commit 290a0f5)
(cherry picked from commit 3739cb0)
(cherry picked from commit c78d0b9)
…ated-integration-stack
…ated-integration-stack # Conflicts: # src/renderer/src/raycast-api/hooks/use-cached-promise.ts
…ated-integration-stack
…ated-integration-stack # Conflicts: # src/renderer/src/raycast-api/list-runtime-renderers.tsx # src/renderer/src/raycast-api/list-runtime.tsx
…ated-integration-stack # Conflicts: # src/renderer/src/CameraExtension.tsx
…ated-integration-stack
…ated-integration-stack # Conflicts: # src/renderer/src/raycast-api/list-runtime.tsx
…ated-integration-stack
…ated-integration-stack
… into codex/perf-consolidated-integration-stack
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Superseded by consolidated lifecycle/media wave-2 PR: #575 |
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Closing as superseded by #575. |
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What changed
generateContenttostreamGenerateContent?alt=sse.Why
Gemini prompt calls were buffering the full provider response before yielding a single chunk, delaying first visible output for AI ask, cursor prompt, prompt-window, Raycast AI ask, and transcript correction paths.
Compatibility impact
Final joined text and no-text error messages are preserved. The only intended user-visible change is improved provider chunk cadence and lower first-token latency for Gemini prompt responses.
How tested
node --test scripts/test-ai-provider-gemini-prompt-streaming.mjsnode --test scripts/test-ai-stream-ipc-batching.mjsnode scripts/test-ai-chat-stream-batching.mjsnode --test scripts/test-cursor-prompt-stream-batching.mjsnode --test scripts/test-use-ai-stream-batching.mjspnpm exec tsc -p tsconfig.main.jsonsrc/main/ai-provider.ts: no diagnostics foundPerformance evidence
Synthetic Gemini SSE harness diagnostics showed legacy
generateContentbuffered 75 bytes before first yield, whilestreamGenerateContentyielded after 66 of 179 SSE bytes and before response end. The new regression also asserts incremental first-chunk delivery, final joined text equivalence, and preserved no-text errors.Stack validation
Started from
fork/codex/perf-consolidated-integration-stackat264fb89dc5c867d6c3d77bc4b95e26e235e326ea. Implementation branch:codex/perf-gemini-prompt-streaming.Replaces
None