DSR under load p50 161ms — the #7139/#7150 branch does not move the
under-load latency class. Expected in hindsight: DSR replies are ordered
within the output stream, so the metric measures output-queue depth;
cooperative drain paces input responsiveness but cannot reorder the queue.
Shrinking the queue itself (producer flow control, task 6) and raising
agent-tui throughput (task 9) are the levers for this number.
Co-authored-by: Orca <help@stably.ai>
Both isolate layers of the 51x agent-tui gap found in baseline-jul02:
bare @xterm/headless parses agent-tui at 103 MB/s and daemon Session
ingest (emulator + pending-output recording + fanout) at 103 MB/s —
on the byte stream the full Orca pipeline delivers at 2.0 MB/s.
Parser and daemon are exonerated; the loss is in main per-chunk
processing, delivery/ACK pacing, or renderer layers above xterm.
Co-authored-by: Orca <help@stably.ai>
Headline: Orca DSR latency under 1MB/s agent-TUI load is p50 134ms / p99 292ms
vs 0.45ms (Terminal.app) and 0.21ms (Ghostty). Idle latency is fine (0.69ms
p50) — the problem is queueing under load, not the pipeline hop. agent-tui
fenced throughput: Orca 2.0 MB/s vs Terminal.app 37 MB/s, Ghostty 78 MB/s.
Co-authored-by: Orca <help@stably.ai>
Run inside any terminal (Orca pane, iTerm2, Ghostty, Terminal.app, VS Code)
to measure its full byte path. DSR round-trip latency at idle and under a
paced agent-TUI load, plus fenced throughput over four deterministic
fixtures. The DSR fence forces 'all bytes parsed' before the clock stops so
xterm.js-class ingest queues can't flatter the result.
First piece of the terminal performance initiative's measurement rig.
Co-authored-by: Orca <help@stably.ai>
Migrate fileURLToPath(import.meta.url) / dirname(...) boilerplate to the
native import.meta.dirname / import.meta.filename, then enable the rule
at error so new code stays on the native form.
The oxlint autofix rewrites the expression but leaves the now-unused
node:url / node:path imports behind (which the already-enabled
no-unused-vars=error would then flag), so this commit also removes those
34 orphaned imports — trimming the named import where other names are
still used, deleting the line where it was the sole import.
Scope is build scripts + Node-env tests only (config/scripts, tools/
benchmarks, *.test.{ts,mjs}, vitest configs); zero shipped runtime code.
The native properties are exact equivalents (Node >= 20.11; repo is on
24), so behavior is unchanged.
Verified: oxlint 0 errors tree-wide (root + mobile), oxfmt clean,
typecheck (node+cli+web) + mobile tsc pass, root vitest 22825 passed /
0 failed, mobile vitest 1018 passed. Exercised the rewritten scripts
directly: build:relay (6 targets), ensure-native-runtime,
verify-macos-entitlements all run correctly with import.meta.dirname.
Jinwoo-HandOrca
Jinwoo Hong
Neil