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Extract renderActiveContentViz (treemap/icicle/bubble dispatch) and
renderActiveContentTable (table-with-sort dispatch) from the original
56-line renderActiveContent, reducing it to 15 lines of code.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Extract handleHelpOverlayKeyPress, handleQuitKeyPress, routeQuitAsEsc, and
handleDashboardShortcutKeys from the 89-line handleGlobalKeyPress to comply
with the project's 50-line function limit. All existing behaviour is preserved.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Extract handleSearchInput and handleKeyNavigation from Update (111 lines → 33),
then split handleKeyNavigation into handleModeKey and handleMovementKey.
Extract frameCoordToTargetRow and findFrameAtRow from frameIndexAt (66 lines → 32).
All new helpers are ≤ 29 lines; behavior is preserved.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Move the per-tick snapshot refresh off the Bubble Tea update goroutine,
add a frame ancestry index so navigation and filter helpers run in
O(subtree) instead of O(frames), skip refresh and animation while the
user is actively pressing keys, and memoize View() output. Keystrokes
(pause, filter, navigate) now land within one frame even when the live
trie ingests thousands of events per tick.
- new SnapshotTree() on LiveTrie bypasses JSON marshal+unmarshal
- RefreshFromLiveTrieCmd runs SnapshotTree + layout + ancestry on a
background goroutine, coalesced via refreshInFlight, and returns a
flameSnapshotReadyMsg the Update loop applies cheaply
- driveWindow gate (250 ms after last key press) skips refresh dispatch
and snaps frames directly to target without animation while the user
is driving
- View() caches its rendered string keyed on the inputs that affect
output; cache is bypassed during animation
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Renders the next-tick countdown ("12s/30s") in the dashboard chrome so
users can see when aggregates will clear, and adds a dedicated H-help
line spelling out the cycle keys (off → 10s → 30s → 1m → 2m → 5m).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Two follow-up refinements to the auto-reset timer added in 8da473a.
- Hotkey cycle now goes off -> 10s -> 30s -> 60s -> 2m -> 5m -> off,
giving the user finer control between 60s and 5m and a quicker
starting cadence.
- The timer now pauses while the TUI is blurred. SetFocused returns a
tea.Cmd that re-arms a fresh tick on focus regain, and bumps the
generation counter on every focus change so any tick scheduled before
blur is dropped on arrival. autoResetTickCmd and handleAutoResetTick
also gate on m.focused as defense in depth.
- Dashboard chrome shows 'auto-reset: 30s (paused)' while the timer is
enabled but blurred, distinguishing it from the disabled 'off' state.
Tests cover the full preset cycle (including custom-value passthrough)
and the pause-on-blur lifecycle: stale ticks ignored, current-gen ticks
ignored while blurred, focus regain re-arms and fires the reset, no-op
focus calls don't churn the generation counter, and the chrome label
flips to '(paused)' as expected.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Live flamegraph trie and stats engine grow unboundedly during long
traces. Add a periodic auto-reset (same effect as the 'r' key) so they
stay bounded.
- New CLI flag -resetTimer=30s (default 30s, 0 disables).
- Hotkey I cycles the cadence: off -> 15s -> 30s -> 60s -> 5m -> off.
Custom intervals (e.g. -resetTimer=47s) advance to the first preset
greater than the current value, then wrap to off.
- autoResetTickMsg carries a generation counter so changing the cadence
drops in-flight ticks scheduled under the previous interval.
- Dashboard chrome shows 'auto-reset: 30s' or 'auto-reset: off'.
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PrepareForTraceRestart was designed for the full-restart path, where the
dashboard's live-trie reference is rebound when TracingStartedMsg fires.
The in-place filter swap skips that message, leaving the flamegraph tab
stuck on 'Flame: waiting for data...' until the next real trace restart.
Re-bind via SetLiveTrie immediately after PrepareForTraceRestart in both
applyGlobalFilter and undoGlobalFilter.
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Changing the global filter used to call stopTrace + beginTraceCmd, which
detached and re-attached every tracepoint and re-loaded the BPF object.
On heavily loaded I/O systems that took several seconds and showed an
'Attaching tracepoints...' overlay each time. The probe set never depends
on the global filter (ShouldIAttachTracepoint only reads CLI regex flags),
so the restart was gratuitous.
Now the eventloop holds its filter behind atomic.Pointer with SetFilter /
Filter accessors, and the trace starter registers el.SetFilter via the
runtime bindings as a SetLiveFilterSetter callback. applyGlobalFilter
and undoGlobalFilter call runtime.applyLiveFilter first; only if no
trace is running do they fall back to the full restart path.
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- Bubbles, treemap, icicle, and the live flamegraph 'b' cycle now include
syscall duration (sum) as a third metric alongside events and bytes.
Statsengine snapshots expose TotalLatencyNs to support this.
- AttachAll takes an optional warn callback. Production passes one so older
kernels that lack newer tracepoints log a warning and keep going instead
of aborting startup.
- Dockerfile.el8 + scripts/build-with-docker-el8.sh + mage buildDockerEl8
produce ior.el8, a static binary built against Rocky Linux 8 glibc for
RHEL/Rocky/Alma 8 hosts.
- README.md documents installing mage and the new el8 target.
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tui.Model (task 429)
tui.Model had 33 fields mixing keyboard tracking, filter chain, process
selection, and UI presentation concerns (SRP violation).
Extract three focused sub-structs:
- keyboardState (kb): enhancements, lastEvent{ID,At,WasPress},
suppress{ID,Until} — 7 fields managed by keys_normalize.go
- filterState (filter): global filter, history slice, label stack
— 3 fields for the trace filter chain
- processState (proc): pid, tid, pickerReturn
— 3 fields for PID/TID selection and picker navigation
Model drops from 33 to 23 top-level fields. All field accesses in
tui.go, keys_normalize.go, and tui_test.go are updated accordingly.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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(task 427/ISP)
TraceRuntimeBindings mixed 4 setter methods (injecting data into TUI) with
4 getter methods (reading persistent TUI-owned state), violating ISP.
Split into two focused interfaces:
- RuntimePublisher: SetDashboardSnapshotSource, SetEventStreamSource,
SetLiveTrie, SetProbeManager — the write/inject side
- RuntimeState: StreamBuffer, Recorder, StreamSequencer, FilterEpoch
— the read/persistent-state side
TraceRuntimeBindings now embeds both, preserving all existing call sites.
RuntimePublisherFromContext() added so callers that only inject data do not
see the getter surface. Three such callers are narrowed: setupBPFModule,
tuiTestFlamesStarter, tuiTestLiveFlamesStarter.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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(task 429)
flags.Get() (global mutable singleton) was called inside library packages,
coupling them to global state and making tests fragile (DIP violation).
- internal.Run() now takes an explicit flags.Config; main.go calls
flags.Get() once at the CLI boundary and passes it in.
- tui.Run(), RunWithTraceStarter(), RunTestFlamesWithTraceStarter() removed;
callers already used the WithConfig variants directly.
- tui.NewModel() preserved for test ergonomics but now uses flags.NewFlags()
(pure defaults) instead of flags.Get() (global state).
- Tests updated to use NewModelWithConfig() with explicit config structs
instead of flags.Set*() + NewModel(), eliminating all test-level
global-state mutation.
flags.Get() is now called only in cmd/ior/main.go, the correct boundary.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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