| Unreleased: |
| Tracing service and probes: |
| * Removed DCHECK that would cause crashes when a debug build of the service |
| is used with a producer built with -DNDEBUG. |
| * Changed the service-side field-level filtering configuration protobuf |
| field number, because the feature had a bug. This is effectively |
| equivalent to deprecating the feature and reintroducing it under a |
| different name. |
| Trace Processor: |
| * Added reqiurement of separating queries by semi-colon (;) followed by |
| new-line when specifying a query file with -q to trace processor shell. |
| * Added "ancestor_slice_by_stack" and "descendant_slice_by_stack" table |
| functions to walk up and down the slice stacks. |
| UI: |
| * |
| SDK: |
| * Changed DCHECK and DLOGs to be always disabled in SDK builds, regardless |
| of NDEBUG. |
| |
| |
| v19.0 - 2021-09-02: |
| Tracing service and probes: |
| * Added ftrace clock reporting to the trace. |
| Trace Processor: |
| * Added support for longs/doubles to RUN_METRIC. |
| * Added power profile data for sunfish, redfin, and bramble. |
| * Added experimental Python library for computing slice breakdowns. |
| * Fixed parsing of JSON escape sequences. |
| * Fixed JSON trace detection. |
| UI: |
| * Added local cacheing of traces. Traces are reloaded in case of refresh or |
| tab being discarded by the browser. |
| * Added icon to distinguish metric-derived tracks. |
| * Added release channel selector to feature flags page. |
| * Fixed crash with null slice names. |
| SDK: |
| * Added some missing NESTABLE_ASYNC legacy trace macros. |
| * Fixed reporting of producer uid in --query. |
| * Fixed version numbering scheme for minor versions. Previously versions |
| were numbered as like v19.0.42 where 42 represented the number of commits |
| since the last major version release. This was ambiguous in the presence |
| of branches. Now versions are numbered like v19.0-ab12cd34 where ab12cd34 |
| is the shortened Git commit-ish. |
| |
| |
| v18.0 - 2021-08-02: |
| Tracing service and probes: |
| * Added cross-compiler toolchains for Linux-{arm,64} based on Debian Sid. |
| These will be used for generating monthly releases' prebuilts via LUCI. |
| Trace Processor: |
| * Added 'android_gpu' metric to report residency information for each GPU |
| frequency (via `trace_processor_shell --run-metrics android_gpu`). |
| * Removed the RawQuery RPC interface. |
| UI: |
| * Added a highlighted section to thread slices to visualize CPU time |
| (darker) verses wall time (lighter). |
| * Added global counter tracks for perf counters (e.g. "CPU 0 cycles", "CPU 0 |
| instructions") when the 'linux.perf' data source (traced_perf) is used. |
| * Added a (feature) 'Flags' page to enable/disable individual metrics. |
| * Fixed races that could cause occasional crashes when loading a trace |
| from a permalink. |
| SDK: |
| * Fix undefined reference on ~TracingMuxerFake when building the SDK. |
| |
| |
| v17.0 - 2021-07-02: |
| Tracing service and probes: |
| * Fixed a bug in ftrace parsing of absolute timestamps |
| (RINGBUF_TYPE_TIME_STAMP), encountered on Linux kernels 5.9+. |
| * Fixed a bug in --save-for-bugreport causing 0-length traces if the |
| selected trace declared one or more triggers in the config. |
| * Fixed a bug in tracebox causing the PERFETTO_PRODUCER_SOCK_NAME env |
| var to be ignored. |
| Trace Processor: |
| * Changed CORS headers of --httpd mode to allow only https://ui.perfetto.dev |
| and http://localhost:10000. This affects only CORS-aware browser clients. |
| * Added GPU frequency metrics. |
| UI: |
| * Fixed ADB connection issues ("unable to reset device") on Windows and Mac. |
| * Added caching of tracing in the cache storage so that the trace is |
| re-opened if a tab is killed (Chrome tab discarding or accidental CTRL+W). |
| SDK: |
| * Added support for writing track events using custom clock timestamps. |
| |
| |
| v16.1 - 2021-06-08: |
| Tracing service and probes: |
| * Cherry-pick of r.android.com/1716718 which missed the v16 branch cut and |
| fixed MSVC 2019 builds. |
| |
| |
| v16.0 - 2021-06-01: |
| Tracing service and probes: |
| * Added support for building most targets (including traced, SDK and |
| trace_processor_shell) from Windows using either clang-cl or MSVC 2019. |
| * Added tracebox, a monolithic binary to capture traces with one command |
| on Linux and older versions of Android (tested on Android Oreo). |
| * Added support for service-side field-level filtering of traces. The |
| consumer can pass a filter bytecode and ensure that non-allowed fields |
| are never emitted in output. |
| * Added reporting of service version and producer SDK version into the trace |
| and `perfetto --query`. |
| * Fixed compatibility with Android versions older than Pie (for sideloading) |
| which cause failures when trying to enable atrace categories. |
| Trace Processor: |
| * Added new RPC interface based on a bidirectional binary pipe. This allows |
| to simplify integration with out-of-process users. The existing --httpd |
| interface now exposes a single /rpc endpoint. Older endpoints are still |
| available for legacy clients. |
| * Added support for counters and instant events in JSON traces. |
| * Fixed support of displayTimeUnit in JSON traces. |
| UI: |
| * Added warning dialog when trying to use a trace_processor_shell --httpd |
| which is too old. |
| * Added warning dialog when trying to use a trace_processor_shell --httpd |
| RPC instance from more than one tab. |
| * Added links to convert the trace to JSON or systrace directly from the UI. |
| * Changed track sorting logic. Tracks are now sorted in groups (e.g., |
| scheduling tracks, summary tracks, frame timeline tracks). |
| * Fixed crashes happening flakily when pushing traces via window.open(). |
| |
| |
| v15.0 - 2021-05-05: |
| Tracing service and probes: |
| * Added support for {host,target}=aarch64 standalone builds. |
| * Added --background cmdline switch to traced and traced_probes services. |
| * Changed trigger_perfetto to ignore unknown command line arguments to |
| preserve forward compatibility. |
| * Added -a / --app cmdline argument to tools/record_android_trace. |
| Trace Processor: |
| * Added sanitisation of keys in nested debug annotation dictionaries. |
| * Changed Android startup metric: count CPU time of JIT thread pool, report |
| timestamp of activities during startup. |
| * Changed android_surfaceflinger metric, added missed frame counters. |
| * Changed version of SQLite to 3.35.4. |
| * Fixed importing of JSON traces with decimal (sub-us) timestamp. |
| * Fixed prepending "debug." prefix to debug annotations with non-interned |
| names. |
| UI: |
| * Added support to visualize the lifetime of individual dmabuf allocations |
| as async slices (datasource: already existing ftrace dmabuf event). |
| * Fixed visualization of unfinished slices to extend to the end of the |
| viewport. |
| SDK: |
| * Added support for passing arbitrary number of debug annotations to |
| TRACE_EVENT and combining them with lambdas. |
| * Added support for writing typed TrackEvent arguments using TRACE_EVENT |
| inline without lambdas. |
| * Changed ConvertTimestampToTraceTimeNs to be a member of |
| TraceTimestampTraits<T> struct instead of a standalone function. |
| * Changed TracedValue to use nested DebugAnnotation proto instead of |
| DebugAnnotation::NestedValue. |
| |
| |
| v14.0 - 2021-04-01: |
| Tracing service and probes: |
| * Added support for polling power rails on Android from the newer |
| IPowerStats AIDL interface (previously using only the HAL interface). |
| * Fixed native heap profiler crash when ABI of heapprofd and profiled |
| process mismatch. |
| * Changed encoding format of Anroid managed heap profiler to reduce heap |
| dump sizes by delta-encoding object IDs. |
| Trace Processor: |
| * Added activity create/resume, layout inflation and resource timings to |
| the Android startup metric. |
| * Added chrome metadata key/value pairs (e.g. chrome version) into the |
| `metadata` table with 'cr-' prefixed keys. |
| * Added dma-buf-based memory metrics reporting total/avg/min/max dmabuf |
| allocation per-dmabuf-heap and per-process. |
| * Removed |force_full_sort| flag from config. This has been replaced |
| by setting the sorting mode to force a full sort. |
| UI: |
| * Added tools/symbolize-ui-crash script to resolve crash reports via |
| TypeScript source maps. |
| * Fixed newlines when copying Android event log lines into the clipboard. |
| * Fixed crash when selecting "Did not finish" slices. |
| * Fixed OOM dialog to give actionable instructions when opening large traces |
| rather than suggesting to file a bug. |
| SDK: |
| * Added /meson.build for bundling /sdk/perfetto.{cc,h} in Meson builds. |
| * Added support for counter trace points with the TRACE_COUNTER macro. |
| |
| |
| v13.0 - 2021-03-01: |
| Tracing service and probes: |
| * Added ability to sample callstacks using kernel tracepoints as timebase. |
| * Added abililty to record the perf timebase counter values into the trace, |
| both combined callstack+counter or counter-only. |
| * Added abillity to trigger traces based on VM pressure on Android. Requires |
| a dedicated tracing instance in $tracefs/instances/mm_events. |
| Trace Processor: |
| * Added sorting mode to trace processor config to specify how trace |
| processor should sort events. The |force_full_sort| flag has been |
| deprecated (with replacement) and will be removed in the next version. |
| * Added ingestion of frame timeline events into the |
| {expected,actual}_frame_timeline_slice tables. |
| * Added support for Mali's trace_marker_write ftrace event. |
| * Added memory metric based on newer android_fastrpc kernel events. |
| UI: |
| * Added flow events support for instant events and async tracks. |
| * Added support for Android frame timeline events. They allow inspecting |
| end-to-end expected vs actual app-to-surfaceflinger frame times. |
| * Added ability to switch between Canary and Stable channels in the UI. |
| * Added ability to drag&drop to open trace files. |
| * Changed UI serving infrastructure, old ui versions can be now retrieved by |
| directly opening https://ui.perfetto.dev/v12.1.269/ . |
| * Removed thread state track for threads that have no activity. |
| SDK: |
| * Use process start time hashed with the process id as a unique process |
| identifier, allowing multiple independent users of the SDK in the same |
| process to interleave their events on shared tracks. |
| * Record process and thread names into the trace. |
| * Add ring buffer tracing support, i.e., periodic clearing of incremental |
| state. |
| Misc: |
| * Convert python scripts to python3. |
| |
| |
| v12.1 - 2021-02-01: |
| Misc: |
| * Fixed CHANGELOG which was missed in the 12.0 branch cut, causing |
| mis-labeling of the version code in the v12.x branch as v11.0..N |
| |
| |
| v12.0 - 2021-02-01: |
| Tracing service and probes: |
| * Added more helpful error messages if the client library is used without |
| having been initialized. |
| * Added //tools/record_android_trace script to facilitate recording traces |
| from Android devices, automating start + stop-via-ctrl+c + pull + open. |
| * Added auto-attachment of traces to Android bugreports if dumpstate is |
| invoked when a trace with bugreport_score > 0 is running. |
| SDK: |
| * Added ability to customize the timestamp of events via |
| ConvertTimestampToTraceTimeNs(). |
| * Fixed support for category names that contain a space. |
| Trace Processor: |
| * Added ingestion and query support for Android end-to-end frame timing |
| events through the {actual, expected}_frame_timeline_slice tables. |
| * Added time-to-reportFullyDrawn (Android's API) to startup metrics. |
| * Fixed excessive memory usage when decoding traces containing callstacks |
| (https://github.com/google/perfetto/issues/83). |
| UI: |
| * Added ability to inspect the full trace config string from the |
| 'Info and stats' page. |
| * Fixed 'TABLE/VIEW XXX already exists' in the Metrics page when running the |
| same metric twice. |
| * Fixed sorting of tracks using numeric sorting instead of lexicographic: |
| Thread {1, 2, 10, 11, 20} rather than Thread {1, 10, 11, 2, 20}. |
| * Fixed CSP-related bug that was preventing the UI to work on Firefox. |
| * Changed max zoom resolution to allow to zoom to sub-us events. |
| |
| |
| v11.0 - 2021-01-01: |
| Tracing service and probes: |
| * Added trace packet interceptor API for rerouting trace data into |
| non-Perfetto systems. |
| * Added support for printing track events to the console. |
| * Added a way to observe track event tracing sessions starting and |
| stopping. |
| Trace Processor: |
| * Added "ancestor_slice" and "experimental_ancestor_stack_profile_callsite" |
| table functions to look up ancestors of CPU stack samples in profiler |
| tables. |
| * Added power metric reporting suspend/resume time periods. |
| UI: |
| * Fixed CPU time calculation in example queries. |
| * Added tracks to debug Android SystemUI jank. |
| |
| |
| v10.0 - 2020-12-01: |
| Tracing service and probes: |
| * Fixed crash of tracing service if a client is unresponsive on the IPC |
| channel. Clients are disconnected if they don't respond to IPCs for 10s. |
| * Added cmdline arguments for integration within ChromeOS system image |
| (--{producer,consumer}-socket-{group,mode} for chmod-ing sockets). |
| * Changed path lookup logic for traced socket. /run/perfetto/ is used if the |
| directory exists, falling back on /tmp/ otherwise. |
| * Added support for kernel frame symbolization to the traced_perf callstack |
| sampler. |
| * Added support for resolving ftrace event arguments that require |
| symbolization against printk_format. |
| Trace Processor: |
| * Added .read command to inject a SQL query file, similar to the -q cmdline. |
| * Added trace-based metrics to root cause jank in Android System UI. |
| * Added symbolization support for ELF files on Windows for heap and |
| callstack profilers. |
| * Added support for symbolizing names of workqueue ftrace events. |
| * Improved Android startup metric with activity restart time. |
| UI: |
| * Added support for navigating flows with Ctrl+[ / Ctr+]. |
| * Improved query result panel, moved to the bottom group allowing |
| simultaneous query result and timeline views. |
| * Fixed data corruption when recording traces via the WebUSB-based Record |
| page in the UI. |
| |
| |
| v9.0 - 2020-11-01: |
| Tracing service and probes: |
| * Added support for recording traces from a system service through the |
| client API. |
| * The client library now reconnects producers automatically if the |
| connection to the tracing service is lost. Also fixed crashes in ongoing |
| tracing sessions when a disconnect occurs. |
| * Added support for dpu and g2d ftrace events. |
| * Enabled commit batching and producer side patching of chunks. |
| * Add support for symbolizing kernel symbols for ftrace events. |
| Trace Processor: |
| * Fixed type affinity of string columns. |
| UI: |
| * Added initial support for running metrics from the UI. |
| * Added support for displaying all flows when a slice or area is selected. |
| * Highlight nodes that match the 'focus' string in the flamegraph. |
| * Added search within slice args. |
| * Fixed details panel height and moved query panel into details panel. |
| * Enabled re-sharing of postMessage traces by echoing back the original URL. |
| * Improved record page error messages. |
| |
| |
| v8.0 - 2020-10-01: |
| Tracing service and probes: |
| * Added API for querying registered data sources and their capabilities. |
| * Added support for profiling heap allocations on Linux via LD_PRELOAD. |
| * Fixed possible race when initializing the consumer library. |
| * Fixed subtle bugs on systems with 16KB system pages. |
| Trace Processor: |
| * Added a table which lists available metrics. |
| * Added Python bindings on PyPi in the 'perfetto' package. |
| * Added support for running trace_processor_shell on Android. |
| * Added per-process metrics for GPU memory usage. |
| * Added support for exporting flow events to JSON. |
| * Added dynamic tables for navigating between slices of flows. |
| UI: |
| * Changed time marking: horizontal selection doesn't gray out anymore, |
| pressing 'm' marks the range. |
| * Added initial support for displaying flow event arrows. |
| * Improved ordering of all thread tracks under process grouping. |
| * Fixed UI crashes due to metric errors |
| * Fixed selection of thread state slices. |
| |
| |
| v7.0 - 2020-09-01: |
| Tracing service and probes: |
| * Added auto-reconnection to the SDK. Tracing::Initialize() now retries in |
| the background, instead of failing, if the tracing service is unrechable. |
| * Added support for recording cpuhp (CPU hotplug) ftrace events. |
| * Fixed heap profiling unwinding on multi-ABI systems. |
| * Fixed reporting of live objects in the native heap profiler when using |
| --dump-at-max. |
| * Fixed crash when writing trace events with field nesting level > 10. |
| Trace Processor: |
| * Added Python bindings, see |
| https://perfetto.dev/docs/analysis/trace-processor#python-api . |
| * Added ingestion for Chrome instant events and Chrome flow events. |
| * Added ingestion for Android GPU memory events and sched_blocked_reason. |
| * Added WebView power metric. |
| * Added support for WSL1 where Async I/O is not available. |
| * Improved detection of Android suspend/resume events. |
| UI: |
| * Added GPU memory recording controls and ingestion code. Requires a recent |
| Android 12+ kernel. |
| * Added details panel for flow events, showed when the user selects a slice |
| involved in a flow (arrows in the UI are still being worked on). |
| * Added instant events rendering. |
| * Added Google Analytics. |
| * Fixed I/O thread-states in 4.14 kernels to deal with the removal of |
| wake-kill using sched_blocked_reason. |
| * Fixed "Perfetto UI started debugging this browser" showing when opening |
| the UI and the Chrome extension is installed. |
| Misc: |
| * Update language to comply with Android's inclusive language guidance. |
| |
| |
| v6.0 - 2020-08-01: |
| Tracing service and probes: |
| * Added ftrace thermal events. |
| * Added support for custom allocators to the heap profiler. Allows |
| developers to report memory allocations that are not done through malloc. |
| * Added detailed timestamping of key tracing session events. |
| * Added support for building tracing services on CrOS (system-wide tracing). |
| * Fixed filtering out of stale ftrace data that predates the beginning of |
| the tracing session. |
| Trace Processor: |
| * Improved profile symbolizer. PERFETTO_SYMBOLIZER_MODE=index discovers |
| symbol files by build id rather than name. |
| * Added screen-state Android metrics. |
| UI: |
| * Added 'Info and stats' page to debug data losses and trace stats. |
| * Added full cmdline to process detail panel. |
| * Improved performance of async tracks using quantized queries. |
| * Improved performance of counter and slice tracks for long traces by |
| pre-caching quantized track data. |
| * Improved actionablility of crash dialog when the Wasm module OOMs. |
| |
| |
| v5.0 - 2020-07-01: |
| Tracing service and probes: |
| * Added gpu_mem_total ftrace event. |
| * Added TrustZone (scm start/end) event. |
| * Added protos for GPU memory tracking and updated render stages proto. |
| * Added time_in_state probe for Android (CPU time broken down by frequency). |
| |
| Trace Processor: |
| * Added ingestion of IRQ and SoftIRQ events. |
| * Added ingestion of workqueue events. KAddr symbolization still missing. |
| * Added ingestion of voltage regulators and board clock change events. |
| * Added ingestion of new ION ion_buffer_create/destroy events. |
| * Added ingestion of TrustZone (scm start/end) events. |
| * Added SurfaceFlinger derived events (tracking of missed frames). |
| * Changed parsing of scheduler task state on 4.14 kernels. |
| * Changed importing of Java heap graphs: allow partial dumps. |
| * Improved performance of the SQL query engine. |
| |
| UI: |
| * Added dedicated query page for custom SQL queries. |
| * Added navigation links for Binder slices. |
| * Removed overview summary mode when zoomed out. |
| * Fixed recording page when targeting Android P. |
| * Improved slice pan/zoom performance by quantizing. |
