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309 lines
14 KiB
309 lines
14 KiB
Unreleased:
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Tracing service and probes:
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*
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Trace Processor:
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*
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UI:
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*
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SDK:
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*
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v15.0 - 2021-05-05:
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Tracing service and probes:
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* Added support for {host,target}=aarch64 standalone builds.
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* Added --background cmdline switch to traced and traced_probes services.
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* Changed trigger_perfetto to ignore unknown command line arguments to
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preserve forward compatibility.
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* Added -a / --app cmdline argument to tools/record_android_trace.
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Trace Processor:
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* Added sanitisation of keys in nested debug annotation dictionaries.
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* Changed Android startup metric: count CPU time of JIT thread pool, report
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timestamp of activities during startup.
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* Changed android_surfaceflinger metric, added missed frame counters.
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* Changed version of SQLite to 3.35.4.
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* Fixed importing of JSON traces with decimal (sub-us) timestamp.
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* Fixed prepending "debug." prefix to debug annotations with non-interned
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names.
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UI:
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* Added support to visualize the lifetime of individual dmabuf allocations
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as async slices (datasource: already existing ftrace dmabuf event).
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* Fixed visualization of unfinished slices to extend to the end of the
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viewport.
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SDK:
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* Added support for passing arbitrary number of debug annotations to
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TRACE_EVENT and combining them with lambdas.
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* Added support for writing typed TrackEvent arguments using TRACE_EVENT
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inline without lambdas.
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* Changed ConvertTimestampToTraceTimeNs to be a member of
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TraceTimestampTraits<T> struct instead of a standalone function.
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* Changed TracedValue to use nested DebugAnnotation proto instead of
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DebugAnnotation::NestedValue.
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v14.0 - 2021-04-01:
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Tracing service and probes:
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* Added support for polling power rails on Android from the newer
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IPowerStats AIDL interface (previously using only the HAL interface).
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* Fixed native heap profiler crash when ABI of heapprofd and profiled
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process mismatch.
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* Changed encoding format of Anroid managed heap profiler to reduce heap
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dump sizes by delta-encoding object IDs.
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Trace Processor:
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* Added activity create/resume, layout inflation and resource timings to
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the Android startup metric.
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* Added chrome metadata key/value pairs (e.g. chrome version) into the
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`metadata` table with 'cr-' prefixed keys.
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* Added dma-buf-based memory metrics reporting total/avg/min/max dmabuf
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allocation per-dmabuf-heap and per-process.
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* Removed |force_full_sort| flag from config. This has been replaced
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by setting the sorting mode to force a full sort.
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UI:
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* Added tools/symbolize-ui-crash script to resolve crash reports via
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TypeScript source maps.
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* Fixed newlines when copying Android event log lines into the clipboard.
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* Fixed crash when selecting "Did not finish" slices.
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* Fixed OOM dialog to give actionable instructions when opening large traces
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rather than suggesting to file a bug.
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SDK:
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* Added /meson.build for bundling /sdk/perfetto.{cc,h} in Meson builds.
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* Added support for counter trace points with the TRACE_COUNTER macro.
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v13.0 - 2021-03-01:
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Tracing service and probes:
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* Added ability to sample callstacks using kernel tracepoints as timebase.
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* Added abililty to record the perf timebase counter values into the trace,
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both combined callstack+counter or counter-only.
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* Added abillity to trigger traces based on VM pressure on Android. Requires
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a dedicated tracing instance in $tracefs/instances/mm_events.
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Trace Processor:
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* Added sorting mode to trace processor config to specify how trace
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processor should sort events. The |force_full_sort| flag has been
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deprecated (with replacement) and will be removed in the next version.
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* Added ingestion of frame timeline events into the
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{expected,actual}_frame_timeline_slice tables.
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* Added support for Mali's trace_marker_write ftrace event.
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* Added memory metric based on newer android_fastrpc kernel events.
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UI:
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* Added flow events support for instant events and async tracks.
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* Added support for Android frame timeline events. They allow inspecting
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end-to-end expected vs actual app-to-surfaceflinger frame times.
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* Added ability to switch between Canary and Stable channels in the UI.
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* Added ability to drag&drop to open trace files.
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* Changed UI serving infrastructure, old ui versions can be now retrieved by
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directly opening https://ui.perfetto.dev/v12.1.269/ .
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* Removed thread state track for threads that have no activity.
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SDK:
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* Use process start time hashed with the process id as a unique process
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identifier, allowing multiple independent users of the SDK in the same
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process to interleave their events on shared tracks.
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* Record process and thread names into the trace.
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* Add ring buffer tracing support, i.e., periodic clearing of incremental
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state.
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Misc:
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* Convert python scripts to python3.
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v12.1 - 2021-02-01:
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Misc:
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* Fixed CHANGELOG which was missed in the 12.0 branch cut, causing
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mis-labeling of the version code in the v12.x branch as v11.0..N
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v12.0 - 2021-02-01:
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Tracing service and probes:
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* Added more helpful error messages if the client library is used without
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having been initialized.
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* Added //tools/record_android_trace script to facilitate recording traces
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from Android devices, automating start + stop-via-ctrl+c + pull + open.
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* Added auto-attachment of traces to Android bugreports if dumpstate is
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invoked when a trace with bugreport_score > 0 is running.
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SDK:
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* Added ability to customize the timestamp of events via
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ConvertTimestampToTraceTimeNs().
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* Fixed support for category names that contain a space.
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Trace Processor:
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* Added ingestion and query support for Android end-to-end frame timing
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events through the {actual, expected}_frame_timeline_slice tables.
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* Added time-to-reportFullyDrawn (Android's API) to startup metrics.
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* Fixed excessive memory usage when decoding traces containing callstacks
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(https://github.com/google/perfetto/issues/83).
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UI:
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* Added ability to inspect the full trace config string from the
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'Info and stats' page.
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* Fixed 'TABLE/VIEW XXX already exists' in the Metrics page when running the
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same metric twice.
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* Fixed sorting of tracks using numeric sorting instead of lexicographic:
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Thread {1, 2, 10, 11, 20} rather than Thread {1, 10, 11, 2, 20}.
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* Fixed CSP-related bug that was preventing the UI to work on Firefox.
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* Changed max zoom resolution to allow to zoom to sub-us events.
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v11.0 - 2021-01-01:
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Tracing service and probes:
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* Added trace packet interceptor API for rerouting trace data into
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non-Perfetto systems.
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* Added support for printing track events to the console.
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* Added a way to observe track event tracing sessions starting and
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stopping.
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Trace Processor:
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* Added "ancestor_slice" and "experimental_ancestor_stack_profile_callsite"
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table functions to look up ancestors of CPU stack samples in profiler
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tables.
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* Added power metric reporting suspend/resume time periods.
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UI:
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* Fixed CPU time calculation in example queries.
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* Added tracks to debug Android SystemUI jank.
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v10.0 - 2020-12-01:
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Tracing service and probes:
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* Fixed crash of tracing service if a client is unresponsive on the IPC
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channel. Clients are disconnected if they don't respond to IPCs for 10s.
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* Added cmdline arguments for integration within ChromeOS system image
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(--{producer,consumer}-socket-{group,mode} for chmod-ing sockets).
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* Changed path lookup logic for traced socket. /run/perfetto/ is used if the
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directory exists, falling back on /tmp/ otherwise.
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* Added support for kernel frame symbolization to the traced_perf callstack
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sampler.
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* Added support for resolving ftrace event arguments that require
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symbolization against printk_format.
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Trace Processor:
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* Added .read command to inject a SQL query file, similar to the -q cmdline.
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* Added trace-based metrics to root cause jank in Android System UI.
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* Added symbolization support for ELF files on Windows for heap and
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callstack profilers.
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* Added support for symbolizing names of workqueue ftrace events.
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* Improved Android startup metric with activity restart time.
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UI:
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* Added support for navigating flows with Ctrl+[ / Ctr+].
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* Improved query result panel, moved to the bottom group allowing
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simultaneous query result and timeline views.
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* Fixed data corruption when recording traces via the WebUSB-based Record
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page in the UI.
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v9.0 - 2020-11-01:
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Tracing service and probes:
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* Added support for recording traces from a system service through the
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client API.
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* The client library now reconnects producers automatically if the
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connection to the tracing service is lost. Also fixed crashes in ongoing
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tracing sessions when a disconnect occurs.
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* Added support for dpu and g2d ftrace events.
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* Enabled commit batching and producer side patching of chunks.
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* Add support for symbolizing kernel symbols for ftrace events.
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Trace Processor:
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* Fixed type affinity of string columns.
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UI:
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* Added initial support for running metrics from the UI.
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* Added support for displaying all flows when a slice or area is selected.
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* Highlight nodes that match the 'focus' string in the flamegraph.
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* Added search within slice args.
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* Fixed details panel height and moved query panel into details panel.
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* Enabled re-sharing of postMessage traces by echoing back the original URL.
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* Improved record page error messages.
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v8.0 - 2020-10-01:
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Tracing service and probes:
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* Added API for querying registered data sources and their capabilities.
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* Added support for profiling heap allocations on Linux via LD_PRELOAD.
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* Fixed possible race when initializing the consumer library.
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* Fixed subtle bugs on systems with 16KB system pages.
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Trace Processor:
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* Added a table which lists available metrics.
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* Added Python bindings on PyPi in the 'perfetto' package.
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* Added support for running trace_processor_shell on Android.
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* Added per-process metrics for GPU memory usage.
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* Added support for exporting flow events to JSON.
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* Added dynamic tables for navigating between slices of flows.
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UI:
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* Changed time marking: horizontal selection doesn't gray out anymore,
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pressing 'm' marks the range.
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* Added initial support for displaying flow event arrows.
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* Improved ordering of all thread tracks under process grouping.
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* Fixed UI crashes due to metric errors
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* Fixed selection of thread state slices.
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v7.0 - 2020-09-01:
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Tracing service and probes:
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* Added auto-reconnection to the SDK. Tracing::Initialize() now retries in
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the background, instead of failing, if the tracing service is unrechable.
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* Added support for recording cpuhp (CPU hotplug) ftrace events.
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* Fixed heap profiling unwinding on multi-ABI systems.
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* Fixed reporting of live objects in the native heap profiler when using
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--dump-at-max.
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* Fixed crash when writing trace events with field nesting level > 10.
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Trace Processor:
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* Added Python bindings, see
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https://perfetto.dev/docs/analysis/trace-processor#python-api .
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* Added ingestion for Chrome instant events and Chrome flow events.
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* Added ingestion for Android GPU memory events and sched_blocked_reason.
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* Added WebView power metric.
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* Added support for WSL1 where Async I/O is not available.
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* Improved detection of Android suspend/resume events.
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UI:
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* Added GPU memory recording controls and ingestion code. Requires a recent
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Android 12+ kernel.
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* Added details panel for flow events, showed when the user selects a slice
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involved in a flow (arrows in the UI are still being worked on).
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* Added instant events rendering.
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* Added Google Analytics.
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* Fixed I/O thread-states in 4.14 kernels to deal with the removal of
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wake-kill using sched_blocked_reason.
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* Fixed "Perfetto UI started debugging this browser" showing when opening
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the UI and the Chrome extension is installed.
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Misc:
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* Update language to comply with Android's inclusive language guidance.
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v6.0 - 2020-08-01:
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Tracing service and probes:
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* Added ftrace thermal events.
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* Added support for custom allocators to the heap profiler. Allows
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developers to report memory allocations that are not done through malloc.
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* Added detailed timestamping of key tracing session events.
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* Added support for building tracing services on CrOS (system-wide tracing).
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* Fixed filtering out of stale ftrace data that predates the beginning of
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the tracing session.
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Trace Processor:
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* Improved profile symbolizer. PERFETTO_SYMBOLIZER_MODE=index discovers
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symbol files by build id rather than name.
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* Added screen-state Android metrics.
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UI:
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* Added 'Info and stats' page to debug data losses and trace stats.
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* Added full cmdline to process detail panel.
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* Improved performance of async tracks using quantized queries.
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* Improved performance of counter and slice tracks for long traces by
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pre-caching quantized track data.
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* Improved actionablility of crash dialog when the Wasm module OOMs.
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v5.0 - 2020-07-01:
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Tracing service and probes:
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* Added gpu_mem_total ftrace event.
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* Added TrustZone (scm start/end) event.
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* Added protos for GPU memory tracking and updated render stages proto.
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* Added time_in_state probe for Android (CPU time broken down by frequency).
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Trace Processor:
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* Added ingestion of IRQ and SoftIRQ events.
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* Added ingestion of workqueue events. KAddr symbolization still missing.
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* Added ingestion of voltage regulators and board clock change events.
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* Added ingestion of new ION ion_buffer_create/destroy events.
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* Added ingestion of TrustZone (scm start/end) events.
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* Added SurfaceFlinger derived events (tracking of missed frames).
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* Changed parsing of scheduler task state on 4.14 kernels.
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* Changed importing of Java heap graphs: allow partial dumps.
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* Improved performance of the SQL query engine.
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UI:
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* Added dedicated query page for custom SQL queries.
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* Added navigation links for Binder slices.
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* Removed overview summary mode when zoomed out.
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* Fixed recording page when targeting Android P.
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* Improved slice pan/zoom performance by quantizing.
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