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1 #
2 # Copyright (C) 2016 The Android Open Source Project
3 #
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
7 #
8 #      http://www.apache.org/licenses/LICENSE-2.0
9 #
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
15 #
16 
17 import sys
18 
19 SVG_NODE_HEIGHT = 17
20 FONT_SIZE = 12
21 
22 UNZOOM_NODE_ORIGIN_X = 10
23 UNZOOM_NODE_WIDTH = 80
24 INFO_NODE_ORIGIN_X = 120
25 INFO_NODE_WIDTH = 800
26 PERCENT_NODE_ORIGIN_X = 930
27 PERCENT_NODE_WIDTH = 250
28 SEARCH_NODE_ORIGIN_X = 1190
29 SEARCH_NODE_WIDTH = 80
30 RECT_TEXT_PADDING = 10
31 
32 
33 def hash_to_float(string):
34     return hash(string) / float(sys.maxsize)
35 
36 
37 def get_legacy_color(method):
38     r = 175 + int(50 * hash_to_float(reversed(method)))
39     g = 60 + int(180 * hash_to_float(method))
40     b = 60 + int(55 * hash_to_float(reversed(method)))
41     return (r, g, b)
42 
43 
44 def get_dso_color(method):
45     r = 170 + int(80 * hash_to_float(reversed(method)))
46     g = 180 + int(70 * hash_to_float((method)))
47     b = 170 + int(80 * hash_to_float(reversed(method)))
48     return (r, g, b)
49 
50 
51 def get_heat_color(callsite, total_weight):
52     r = 245 + 10 * (1 - callsite.weight() / total_weight)
53     g = 110 + 105 * (1 - callsite.weight() / total_weight)
54     b = 100
55     return (r, g, b)
56 
57 def get_proper_scaled_time_string(value):
58     if value >= 1e9:
59         return '%.3f s' % (value / 1e9)
60     if value >= 1e6:
61         return '%.3f ms' % (value / 1e6)
62     if value >= 1e3:
63         return '%.3f us' % (value / 1e3)
64     return '%.0f ns' % value
65 
66 def create_svg_node(process, callsite, depth, f, total_weight, height, color_scheme, nav):
67     x = float(callsite.offset) / total_weight * 100
68     y = height - (depth + 1) * SVG_NODE_HEIGHT
69     width = callsite.weight() / total_weight * 100
70 
71     method = callsite.method.replace(">", "&gt;").replace("<", "&lt;")
72     if width <= 0:
73         return
74 
75     if color_scheme == "dso":
76         r, g, b = get_dso_color(callsite.dso)
77     elif color_scheme == "legacy":
78         r, g, b = get_legacy_color(method)
79     else:
80         r, g, b = get_heat_color(callsite, total_weight)
81 
82     r_border, g_border, b_border = [max(0, color - 50) for color in [r, g, b]]
83 
84     if process.props['trace_offcpu']:
85         weight_str = get_proper_scaled_time_string(callsite.weight())
86     else:
87         weight_str = "{:,}".format(int(callsite.weight())) + ' events'
88 
89     f.write(
90         """<g id=%d class="n" onclick="zoom(this);" onmouseenter="select(this);" nav="%s">
91         <title>%s | %s (%s: %3.2f%%)</title>
92         <rect x="%f%%" y="%f" ox="%f" oy="%f" width="%f%%" owidth="%f" height="15.0"
93         ofill="rgb(%d,%d,%d)" fill="rgb(%d,%d,%d)" style="stroke:rgb(%d,%d,%d)"/>
94         <text x="%f%%" y="%f" font-size="%d" font-family="Monospace"></text>
95         </g>""" %
96         (callsite.id,
97          ','.join(str(x) for x in nav),
98          method,
99          callsite.dso,
100          weight_str,
101          callsite.weight() / total_weight * 100,
102          x,
103          y,
104          x,
105          y,
106          width,
107          width,
108          r,
109          g,
110          b,
111          r,
112          g,
113          b,
114          r_border,
115          g_border,
116          b_border,
117          x,
118          y + 12,
119          FONT_SIZE))
120 
121 
122 def render_svg_nodes(process, flamegraph, depth, f, total_weight, height, color_scheme):
123     for i, child in enumerate(flamegraph.children):
124         # Prebuild navigation target for wasd
125 
126         if i == 0:
127             left_index = 0
128         else:
129             left_index = flamegraph.children[i - 1].id
130 
131         if i == len(flamegraph.children) - 1:
132             right_index = 0
133         else:
134             right_index = flamegraph.children[i + 1].id
135 
136         up_index = max(child.children, key=lambda x: x.weight()).id if child.children else 0
137 
138         # up, left, down, right
139         nav = [up_index, left_index, flamegraph.id, right_index]
140 
141         create_svg_node(process, child, depth, f, total_weight, height, color_scheme, nav)
142         # Recurse down
143         render_svg_nodes(process, child, depth + 1, f, total_weight, height, color_scheme)
144 
145 
146 def render_search_node(f):
147     f.write(
148         """<rect id="search_rect"  style="stroke:rgb(0,0,0);" onclick="search(this);" class="t"
149         rx="10" ry="10" x="%d" y="10" width="%d" height="30" fill="rgb(255,255,255)""/>
150         <text id="search_text"  class="t" x="%d" y="30"    onclick="search(this);">Search</text>
151         """ % (SEARCH_NODE_ORIGIN_X, SEARCH_NODE_WIDTH, SEARCH_NODE_ORIGIN_X + RECT_TEXT_PADDING))
152 
153 
154 def render_unzoom_node(f):
155     f.write(
156         """<rect id="zoom_rect" style="display:none;stroke:rgb(0,0,0);" class="t"
157         onclick="unzoom(this);" rx="10" ry="10" x="%d" y="10" width="%d" height="30"
158         fill="rgb(255,255,255)"/>
159          <text id="zoom_text" style="display:none;" class="t" x="%d" y="30"
160          onclick="unzoom(this);">Zoom out</text>
161         """ % (UNZOOM_NODE_ORIGIN_X, UNZOOM_NODE_WIDTH, UNZOOM_NODE_ORIGIN_X + RECT_TEXT_PADDING))
162 
163 
164 def render_info_node(f):
165     f.write(
166         """<clipPath id="info_clip_path"> <rect id="info_rect" style="stroke:rgb(0,0,0);"
167         rx="10" ry="10" x="%d" y="10" width="%d" height="30" fill="rgb(255,255,255)"/>
168         </clipPath>
169         <rect id="info_rect" style="stroke:rgb(0,0,0);"
170         rx="10" ry="10" x="%d" y="10" width="%d" height="30" fill="rgb(255,255,255)"/>
171          <text clip-path="url(#info_clip_path)" id="info_text" x="%d" y="30"></text>
172          """ % (INFO_NODE_ORIGIN_X, INFO_NODE_WIDTH, INFO_NODE_ORIGIN_X, INFO_NODE_WIDTH,
173                 INFO_NODE_ORIGIN_X + RECT_TEXT_PADDING))
174 
175 
176 def render_percent_node(f):
177     f.write(
178         """<rect id="percent_rect" style="stroke:rgb(0,0,0);"
179         rx="10" ry="10" x="%d" y="10" width="%d" height="30" fill="rgb(255,255,255)"/>
180          <text  id="percent_text" text-anchor="end" x="%d" y="30">100.00%%</text>
181         """ % (PERCENT_NODE_ORIGIN_X, PERCENT_NODE_WIDTH,
182                PERCENT_NODE_ORIGIN_X + PERCENT_NODE_WIDTH - RECT_TEXT_PADDING))
183 
184 
185 def render_svg(process, flamegraph, f, color_scheme):
186     height = (flamegraph.get_max_depth() + 2) * SVG_NODE_HEIGHT
187     f.write("""<div class="flamegraph_block" style="width:100%%; height:%dpx;">
188             """ % height)
189     f.write("""<svg xmlns="http://www.w3.org/2000/svg"
190     xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"
191     width="100%%" height="100%%" style="border: 1px solid black;"
192     rootid="%d">
193     """ % (flamegraph.children[0].id))
194     f.write("""<defs > <linearGradient id="background_gradiant" y1="0" y2="1" x1="0" x2="0" >
195     <stop stop-color="#eeeeee" offset="5%" /> <stop stop-color="#efefb1" offset="90%" />
196     </linearGradient> </defs>""")
197     f.write("""<rect x="0.0" y="0" width="100%" height="100%" fill="url(#background_gradiant)" />
198             """)
199     render_svg_nodes(process, flamegraph, 0, f, flamegraph.weight(), height, color_scheme)
200     render_search_node(f)
201     render_unzoom_node(f)
202     render_info_node(f)
203     render_percent_node(f)
204     f.write("</svg></div><br/>\n\n")
205