diff options
Diffstat (limited to 'tools/perf/python/ilist.py')
| -rwxr-xr-x | tools/perf/python/ilist.py | 226 |
1 files changed, 168 insertions, 58 deletions
diff --git a/tools/perf/python/ilist.py b/tools/perf/python/ilist.py index 22c70a8b31f3..9d6465c60df3 100755 --- a/tools/perf/python/ilist.py +++ b/tools/perf/python/ilist.py @@ -2,19 +2,121 @@ # SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) """Interactive perf list.""" +from abc import ABC, abstractmethod import argparse +from dataclasses import dataclass +import math from typing import Any, Dict, Optional, Tuple import perf from textual import on from textual.app import App, ComposeResult from textual.binding import Binding from textual.containers import Horizontal, HorizontalGroup, Vertical, VerticalScroll +from textual.css.query import NoMatches from textual.command import SearchIcon from textual.screen import ModalScreen from textual.widgets import Button, Footer, Header, Input, Label, Sparkline, Static, Tree from textual.widgets.tree import TreeNode +def get_info(info: Dict[str, str], key: str): + return (info[key] + "\n") if key in info else "" + + +class TreeValue(ABC): + """Abstraction for the data of value in the tree.""" + + @abstractmethod + def name(self) -> str: + pass + + @abstractmethod + def description(self) -> str: + pass + + @abstractmethod + def matches(self, query: str) -> bool: + pass + + @abstractmethod + def parse(self) -> perf.evlist: + pass + + @abstractmethod + def value(self, evlist: perf.evlist, evsel: perf.evsel, cpu: int, thread: int) -> float: + pass + + +@dataclass +class Metric(TreeValue): + """A metric in the tree.""" + metric_name: str + + def name(self) -> str: + return self.metric_name + + def description(self) -> str: + """Find and format metric description.""" + for metric in perf.metrics(): + if metric["MetricName"] != self.metric_name: + continue + desc = get_info(metric, "BriefDescription") + desc += get_info(metric, "PublicDescription") + desc += get_info(metric, "MetricExpr") + desc += get_info(metric, "MetricThreshold") + return desc + return "description" + + def matches(self, query: str) -> bool: + return query in self.metric_name + + def parse(self) -> perf.evlist: + return perf.parse_metrics(self.metric_name) + + def value(self, evlist: perf.evlist, evsel: perf.evsel, cpu: int, thread: int) -> float: + val = evlist.compute_metric(self.metric_name, cpu, thread) + return 0 if math.isnan(val) else val + + +@dataclass +class PmuEvent(TreeValue): + """A PMU and event within the tree.""" + pmu: str + event: str + + def name(self) -> str: + if self.event.startswith(self.pmu) or ':' in self.event: + return self.event + else: + return f"{self.pmu}/{self.event}/" + + def description(self) -> str: + """Find and format event description for {pmu}/{event}/.""" + for p in perf.pmus(): + if p.name() != self.pmu: + continue + for info in p.events(): + if "name" not in info or info["name"] != self.event: + continue + + desc = get_info(info, "topic") + desc += get_info(info, "event_type_desc") + desc += get_info(info, "desc") + desc += get_info(info, "long_desc") + desc += get_info(info, "encoding_desc") + return desc + return "description" + + def matches(self, query: str) -> bool: + return query in self.pmu or query in self.event + + def parse(self) -> perf.evlist: + return perf.parse_events(self.name()) + + def value(self, evlist: perf.evlist, evsel: perf.evsel, cpu: int, thread: int) -> float: + return evsel.read(cpu, thread).val + + class ErrorScreen(ModalScreen[bool]): """Pop up dialog for errors.""" @@ -126,8 +228,9 @@ class IListApp(App): def __init__(self, interval: float) -> None: self.interval = interval self.evlist = None - self.search_results: list[TreeNode[str]] = [] - self.cur_search_result: TreeNode[str] | None = None + self.selected: Optional[TreeValue] = None + self.search_results: list[TreeNode[TreeValue]] = [] + self.cur_search_result: TreeNode[TreeValue] | None = None super().__init__() def expand_and_select(self, node: TreeNode[Any]) -> None: @@ -145,7 +248,7 @@ class IListApp(App): l = len(self.search_results) if l < 1: - tree: Tree[str] = self.query_one("#pmus", Tree) + tree: Tree[TreeValue] = self.query_one("#root", Tree) if previous: tree.action_cursor_up() else: @@ -180,7 +283,7 @@ class IListApp(App): event = event.lower() search_label.update(f'Searching for events matching "{event}"') - tree: Tree[str] = self.query_one("#pmus", Tree) + tree: Tree[str] = self.query_one("#root", Tree) def find_search_results(event: str, node: TreeNode[str], cursor_seen: bool = False, @@ -189,7 +292,7 @@ class IListApp(App): """Find nodes that match the search remembering the one after the cursor.""" if not cursor_seen and node == tree.cursor_node: cursor_seen = True - if node.data and event in node.data: + if node.data and node.data.matches(event): if cursor_seen and not match_after_cursor: match_after_cursor = node self.search_results.append(node) @@ -203,7 +306,7 @@ class IListApp(App): self.search_results.clear() (_, self.cur_search_result) = find_search_results(event, tree.root) if len(self.search_results) < 1: - self.push_screen(ErrorScreen(f"Failed to find pmu/event {event}")) + self.push_screen(ErrorScreen(f"Failed to find pmu/event or metric {event}")) search_label.display = False elif self.cur_search_result: self.expand_and_select(self.cur_search_result) @@ -221,16 +324,16 @@ class IListApp(App): self.set_searched_tree_node(previous=True) def action_collapse(self) -> None: - """Collapse the potentially large number of events under a PMU.""" - tree: Tree[str] = self.query_one("#pmus", Tree) + """Collapse the part of the tree currently on.""" + tree: Tree[str] = self.query_one("#root", Tree) node = tree.cursor_node - if node and node.parent and node.parent.parent: + if node and node.parent: node.parent.collapse_all() node.tree.scroll_to_node(node.parent) def update_counts(self) -> None: """Called every interval to update counts.""" - if not self.evlist: + if not self.selected or not self.evlist: return def update_count(cpu: int, count: int): @@ -259,8 +362,7 @@ class IListApp(App): for cpu in evsel.cpus(): aggr = 0 for thread in evsel.threads(): - counts = evsel.read(cpu, thread) - aggr += counts.val + aggr += self.selected.value(self.evlist, evsel, cpu, thread) update_count(cpu, aggr) total += aggr update_count(-1, total) @@ -271,47 +373,37 @@ class IListApp(App): self.update_counts() self.set_interval(self.interval, self.update_counts) - def set_pmu_and_event(self, pmu: str, event: str) -> None: + def set_selected(self, value: TreeValue) -> None: """Updates the event/description and starts the counters.""" + try: + label_name = self.query_one("#event_name", Label) + event_description = self.query_one("#event_description", Static) + lines = self.query_one("#lines") + except NoMatches: + # A race with rendering, ignore the update as we can't + # mount the assumed output widgets. + return + + self.selected = value + # Remove previous event information. if self.evlist: self.evlist.disable() self.evlist.close() - lines = self.query(CounterSparkline) - for line in lines: - line.remove() - lines = self.query(Counter) - for line in lines: + old_lines = self.query(CounterSparkline) + for line in old_lines: line.remove() + old_counters = self.query(Counter) + for counter in old_counters: + counter.remove() - def pmu_event_description(pmu: str, event: str) -> str: - """Find and format event description for {pmu}/{event}/.""" - def get_info(info: Dict[str, str], key: str): - return (info[key] + "\n") if key in info else "" - - for p in perf.pmus(): - if p.name() != pmu: - continue - for info in p.events(): - if "name" not in info or info["name"] != event: - continue - - desc = get_info(info, "topic") - desc += get_info(info, "event_type_desc") - desc += get_info(info, "desc") - desc += get_info(info, "long_desc") - desc += get_info(info, "encoding_desc") - return desc - return "description" - - # Parse event, update event text and description. - full_name = event if event.startswith(pmu) or ':' in event else f"{pmu}/{event}/" - self.query_one("#event_name", Label).update(full_name) - self.query_one("#event_description", Static).update(pmu_event_description(pmu, event)) + # Update event/metric text and description. + label_name.update(value.name()) + event_description.update(value.description()) # Open the event. try: - self.evlist = perf.parse_events(full_name) + self.evlist = value.parse() if self.evlist: self.evlist.open() self.evlist.enable() @@ -319,13 +411,12 @@ class IListApp(App): self.evlist = None if not self.evlist: - self.push_screen(ErrorScreen(f"Failed to open {full_name}")) + self.push_screen(ErrorScreen(f"Failed to open {value.name()}")) return # Add spark lines for all the CPUs. Note, must be done after # open so that the evlist CPUs have been computed by propagate # maps. - lines = self.query_one("#lines") line = CounterSparkline(cpu=-1) lines.mount(line) for cpu in self.evlist.all_cpus(): @@ -339,28 +430,49 @@ class IListApp(App): def compose(self) -> ComposeResult: """Draws the app.""" - def pmu_event_tree() -> Tree: - """Create tree of PMUs with events under.""" - tree: Tree[str] = Tree("PMUs", id="pmus") - tree.root.expand() + def metric_event_tree() -> Tree: + """Create tree of PMUs and metricgroups with events or metrics under.""" + tree: Tree[TreeValue] = Tree("Root", id="root") + pmus = tree.root.add("PMUs") for pmu in perf.pmus(): pmu_name = pmu.name().lower() - pmu_node = tree.root.add(pmu_name, data=pmu_name) + pmu_node = pmus.add(pmu_name) try: for event in sorted(pmu.events(), key=lambda x: x["name"]): if "name" in event: e = event["name"].lower() if "alias" in event: - pmu_node.add_leaf(f'{e} ({event["alias"]})', data=e) + pmu_node.add_leaf(f'{e} ({event["alias"]})', + data=PmuEvent(pmu_name, e)) else: - pmu_node.add_leaf(e, data=e) + pmu_node.add_leaf(e, data=PmuEvent(pmu_name, e)) except: # Reading events may fail with EPERM, ignore. pass + metrics = tree.root.add("Metrics") + groups = set() + for metric in perf.metrics(): + groups.update(metric["MetricGroup"]) + + def add_metrics_to_tree(node: TreeNode[TreeValue], parent: str): + for metric in sorted(perf.metrics(), key=lambda x: x["MetricName"]): + if parent in metric["MetricGroup"]: + name = metric["MetricName"] + node.add_leaf(name, data=Metric(name)) + child_group_name = f'{name}_group' + if child_group_name in groups: + add_metrics_to_tree(node.add(child_group_name), child_group_name) + + for group in sorted(groups): + if group.endswith('_group'): + continue + add_metrics_to_tree(metrics.add(group), group) + + tree.root.expand() return tree yield Header(id="header") - yield Horizontal(Vertical(pmu_event_tree(), id="events"), + yield Horizontal(Vertical(metric_event_tree(), id="events"), Vertical(Label("event name", id="event_name"), Static("description", markup=False, id="event_description"), )) @@ -369,12 +481,10 @@ class IListApp(App): yield Footer(id="footer") @on(Tree.NodeSelected) - def on_tree_node_selected(self, event: Tree.NodeSelected[str]) -> None: + def on_tree_node_selected(self, event: Tree.NodeSelected[TreeValue]) -> None: """Called when a tree node is selected, selecting the event.""" - if event.node.parent and event.node.parent.parent: - assert event.node.parent.data is not None - assert event.node.data is not None - self.set_pmu_and_event(event.node.parent.data, event.node.data) + if event.node.data: + self.set_selected(event.node.data) if __name__ == "__main__": |