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https://github.com/cloud-hypervisor/cloud-hypervisor.git
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99 lines
3.1 KiB
Python
99 lines
3.1 KiB
Python
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#!/bin/env python3
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#
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# Copyright © 2022 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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from colorsys import hsv_to_rgb
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from random import random
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import xml
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import json
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from sys import argv, stderr
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import xml.etree.ElementTree as ET
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width = 1000
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height = 200
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padding = 10
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if len(argv) < 3:
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stderr.write("./ch-trace-visualiser <trace file> <output file>\n")
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exit(1)
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def nano_time(duration):
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return (duration["secs"] * 10 ** 9) + duration["nanos"]
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def duration_to_px_x(start):
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return (nano_time(start) * (width - 2 * padding)) / total_time
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def duration_to_px_width(start, end):
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return ((nano_time(end) - nano_time(start)) * (width - 2 * padding)) / total_time
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def duration_ms(start, end):
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return (nano_time(end) - nano_time(start)) // 1000000
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f = open(argv[1])
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report = json.load(f)
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total_time = nano_time(report["duration"])
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svg = ET.Element("svg", attrib={"width": str(width), "height": str(height),
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"xmlns": "http://www.w3.org/2000/svg",
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"xmlns:svg": "http://www.w3.org/2000/svg"
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})
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def add_traced_block(thread_group, depth, traced_block):
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g = ET.SubElement(thread_group, "g",
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attrib={"transform": "translate(%d,%d)" % (
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duration_to_px_x(traced_block["timestamp"]),
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(depth * 18))})
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width = str(duration_to_px_width(
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traced_block["timestamp"], traced_block["end_timestamp"]))
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clip = ET.SubElement(g, "clipPath", attrib={
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"id": "clip_%s" % (traced_block["event"]),
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})
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ET.SubElement(clip, "rect", attrib={
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"width": width,
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"height": "1.5em",
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"x": "0",
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"y": "0"
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})
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(red, green, blue) = hsv_to_rgb(random(), 0.3, 0.75)
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ET.SubElement(g, "rect", attrib={
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"width": width,
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"height": "1.5em",
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"fill": "#%x%x%x" % (int(red * 255), int(green * 255), int(blue * 255))
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})
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text = ET.SubElement(g, "text", attrib={
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"x": "0.2em", "y": "1em", "clip-path": "url(#clip_%s)" % (traced_block["event"])})
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text.text = "%s (%dms)" % (traced_block["event"], duration_ms(
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traced_block["timestamp"], traced_block["end_timestamp"]))
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thread_size = (height - (2 * padding)) / len(report["events"])
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thread_offset = padding
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for thread in report["events"]:
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thread_events = report["events"][thread]
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thread_events = sorted(
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thread_events, key=lambda traced_block: nano_time(traced_block["timestamp"]))
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thread_group = ET.SubElement(
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svg, "g", attrib={"transform": "translate(%d,%d)" % (padding, thread_offset)})
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thread_text = ET.SubElement(thread_group, "text", attrib={
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"y": "1em"}).text = "Thread: %s" % (thread)
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thread_children = ET.SubElement(thread_group, "g", attrib={
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"transform": "translate(0, 18)"})
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for traced_block in thread_events:
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add_traced_block(thread_children, traced_block["depth"], traced_block)
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thread_offset += thread_size + padding
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xml = ET.ElementTree(element=svg)
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xml.write(argv[2], xml_declaration=True)
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