# flamegraph.py - create flame graphs from perf samples # SPDX-License-Identifier: GPL-2.0 # # Usage: # # perf record -a -g -F 99 sleep 60 # perf script report flamegraph # # Combined: # # perf script flamegraph -a -F 99 sleep 60 # # Written by Andreas Gerstmayr # Flame Graphs invented by Brendan Gregg # Works in tandem with d3-flame-graph by Martin Spier # # pylint: disable=missing-module-docstring # pylint: disable=missing-class-docstring # pylint: disable=missing-function-docstring from __future__ import print_function import sys import os import io import argparse import json import subprocess # pylint: disable=too-few-public-methods class Node: def __init__(self, name, libtype): self.name = name # "root" | "kernel" | "" # "" indicates user space self.libtype = libtype self.value = 0 self.children = [] def to_json(self): return { "n": self.name, "l": self.libtype, "v": self.value, "c": self.children } class FlameGraphCLI: def __init__(self, args): self.args = args self.stack = Node("all", "root") if self.args.format == "html" and \ not os.path.isfile(self.args.template): print("Flame Graph template {} does not exist. Please install " "the js-d3-flame-graph (RPM) or libjs-d3-flame-graph (deb) " "package, specify an existing flame graph template " "(--template PATH) or another output format " "(--format FORMAT).".format(self.args.template), file=sys.stderr) sys.exit(1) @staticmethod def get_libtype_from_dso(dso): """ when kernel-debuginfo is installed, dso points to /usr/lib/debug/lib/modules/*/vmlinux """ if dso and (dso == "[kernel.kallsyms]" or dso.endswith("/vmlinux")): return "kernel" return "" @staticmethod def find_or_create_node(node, name, libtype): for child in node.children: if child.name == name: return child child = Node(name, libtype) node.children.append(child) return child def process_event(self, event): pid = event.get("sample", {}).get("pid", 0) # event["dso"] sometimes contains /usr/lib/debug/lib/modules/*/vmlinux # for user-space processes; let's use pid for kernel or user-space distinction if pid == 0: comm = event["comm"] libtype = "kernel" else: comm = "{} ({})".format(event["comm"], pid) libtype = "" node = self.find_or_create_node(self.stack, comm, libtype) if "callchain" in event: for entry in reversed(event["callchain"]): name = entry.get("sym", {}).get("name", "[unknown]") libtype = self.get_libtype_from_dso(entry.get("dso")) node = self.find_or_create_node(node, name, libtype) else: name = event.get("symbol", "[unknown]") libtype = self.get_libtype_from_dso(event.get("dso")) node = self.find_or_create_node(node, name, libtype) node.value += 1 def get_report_header(self): if self.args.input == "-": # when this script is invoked with "perf script flamegraph", # no perf.data is created and we cannot read the header of it return "" try: output = subprocess.check_output(["perf", "report", "--header-only"]) return output.decode("utf-8") except Exception as err: # pylint: disable=broad-except print("Error reading report header: {}".format(err), file=sys.stderr) return "" def trace_end(self): stacks_json = json.dumps(self.stack, default=lambda x: x.to_json()) if self.args.format == "html": report_header = self.get_report_header() options = { "colorscheme": self.args.colorscheme, "context": report_header } options_json = json.dumps(options) try: with io.open(self.args.template, encoding="utf-8") as template: output_str = ( template.read() .replace("/** @options_json **/", options_json) .replace("/** @flamegraph_json **/", stacks_json) ) except IOError as err: print("Error reading template file: {}".format(err), file=sys.stderr) sys.exit(1) output_fn = self.args.output or "flamegraph.html" else: output_str = stacks_json output_fn = self.args.output or "stacks.json" if output_fn == "-": with io.open(sys.stdout.fileno(), "w", encoding="utf-8", closefd=False) as out: out.write(output_str) else: print("dumping data to {}".format(output_fn)) try: with io.open(output_fn, "w", encoding="utf-8") as out: out.write(output_str) except IOError as err: print("Error writing output file: {}".format(err), file=sys.stderr) sys.exit(1) if __name__ == "__main__": parser = argparse.ArgumentParser(description="Create flame graphs.") parser.add_argument("-f", "--format", default="html", choices=["json", "html"], help="output file format") parser.add_argument("-o", "--output", help="output file name") parser.add_argument("--template", default="/usr/share/d3-flame-graph/d3-flamegraph-base.html", help="path to flame graph HTML template") parser.add_argument("--colorscheme", default="blue-green", help="flame graph color scheme", choices=["blue-green", "orange"]) parser.add_argument("-i", "--input", help=argparse.SUPPRESS) cli_args = parser.parse_args() cli = FlameGraphCLI(cli_args) process_event = cli.process_event trace_end = cli.trace_end on value='linux-6.6.y'>linux-6.6.y Hosts the 0x221E linux distro kernel.Ubuntu
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path: root/arch/mips/tx4927
AgeCommit message (Expand)Author
2007-02-26[MIPS] Kill redundant EXTRA_AFLAGSAtsushi Nemoto
2007-02-10[MIPS] RBTX49x7: declare prom_getcmdline()Sergei Shtylyov
2007-02-06[MIPS] use name instead of typename for each irq_chipAtsushi Nemoto
2007-02-06[MIPS] prom_free_prom_memory cleanupAtsushi Nemoto
2006-12-09[MIPS] Add GENERIC_HARDIRQS_NO__DO_IRQ for i8259 usersAtsushi Nemoto
2006-12-06[MIPS] Compile __do_IRQ() when really neededFranck Bui-Huu
2006-11-30[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irqAtsushi Nemoto
2006-11-30[MIPS] IRQ cleanupsAtsushi Nemoto
2006-10-31[MIPS] Add missing file for support of backplane on TX4927 based boardManish Lachwani
2006-10-31[MIPS] TX4927: Remove indent error message that somehow ended in the code.Ralf Baechle
2006-10-09[MIPS] Fix build errors related to wbflush.h on tx4927/tx4938.Atsushi Nemoto
2006-10-09[MIPS] Cleanup unnecessary <asm/ptrace.h> inclusions.Ralf Baechle
2006-10-08[MIPS] Complete fixes after removal of pt_regs argument to int handlers.Ralf Baechle
2006-07-13[MIPS] Replace board_timer_setup function pointer by plat_timer_setup.Ralf Baechle
2006-07-13[MIPS] Eleminate interrupt migration helper use.Ralf Baechle
2006-07-02[PATCH] irq-flags: MIPS: Use the new IRQF_ constantsThomas Gleixner
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
2006-06-29[PATCH] genirq: rename desc->handler to desc->chipIngo Molnar
2006-06-19[MIPS] Cleanup memory managment initialization.Ralf Baechle
2006-04-19[MIPS] Rewrite all the assembler interrupt handlers to C.Ralf Baechle
2006-04-19[MIPS] Rewrite spurious_interrupt from assembler to C.Ralf Baechle
2006-03-27[PATCH] mips: fixed collision of rtc function nameYoichi Yuasa
2006-03-21[MIPS] War on whitespace: cleanup initial spaces followed by tabs.Ralf Baechle
2006-02-07[MIPS] TX49x7: Fix reporting of the CPU name and PCI clockSergei Shtylylov
2006-02-07[MIPS] Rename _machine_power_off to pm_power_off so the kernel builds again.Ralf Baechle
2005-10-29Sliceup Kconfig; it's grown too large.Ralf Baechle
2005-10-29Conversion to plat_setup() for TX4927 also.Ralf Baechle
2005-10-29Use new txx9 serial driver.Ralf Baechle
2005-10-29Get rid of early_init. There's more need to make this form ofRalf Baechle
2005-09-05[PATCH] mips: nuke trailing whitespaceRalf Baechle