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gh-135953: Add flamegraph reporter to sampling profiler #138304

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gh-135953: Add flamegraph reporter to sampling profiler #138304

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e73d77f
Remove unused variables in sample profiler
lkollar Aug 27, 2025
5fc921c
Add HTML flamegraph to sampling profiler
lkollar Aug 27, 2025
0803b28
Avoid displaying popup outside viewport
lkollar Aug 31, 2025
12459b7
fixup! Add HTML flamegraph to sampling profiler
lkollar Aug 31, 2025
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275 changes: 275 additions & 0 deletions Lib/profiling/sampling/flamegraph.css
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Original file line number Diff line number Diff line change
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body {
font-family:
"Source Sans Pro", "Lucida Grande", "Lucida Sans Unicode", "Geneva",
"Verdana", sans-serif;
margin: 0;
padding: 0;
background: #ffffff;
color: #2e3338;
line-height: 1.6;
}

.header {
background: linear-gradient(135deg, #3776ab 0%, #4584bb 100%);
color: white;
padding: 32px 0;
box-shadow: 0 2px 10px rgba(55, 118, 171, 0.2);
}

.header-content {
max-width: 1200px;
margin: 0 auto;
padding: 0 24px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
}

.python-logo {
width: auto;
height: 64px;
margin-bottom: 16px;
flex-shrink: 0;
display: flex;
align-items: center;
justify-content: center;
}

.python-logo img {
height: 64px;
width: auto;
filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

.header-text h1 {
margin: 0;
font-size: 2.5em;
font-weight: 600;
color: white;
text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-text .subtitle {
margin: 8px 0 0 0;
font-size: 1.1em;
color: rgba(255, 255, 255, 0.9);
font-weight: 300;
}

.controls {
background: #f8f9fa;
border-bottom: 1px solid #e9ecef;
padding: 20px 0;
text-align: center;
}

.controls-content {
max-width: 1200px;
margin: 0 auto;
padding: 0 24px;
}

.controls button {
background: #3776ab;
color: white;
border: none;
padding: 12px 24px;
margin: 0 8px;
border-radius: 6px;
cursor: pointer;
font-weight: 600;
font-size: 14px;
font-family: inherit;
transition: all 0.2s ease;
box-shadow: 0 2px 4px rgba(55, 118, 171, 0.2);
}

.controls button:hover {
background: #2d5aa0;
transform: translateY(-1px);
box-shadow: 0 4px 8px rgba(55, 118, 171, 0.3);
}

.controls button.secondary {
background: #ffd43b;
color: #2e3338;
}

.controls button.secondary:hover {
background: #ffcd02;
}

#chart {
width: 100%;
height: calc(100vh - 160px);
overflow: hidden;
background: #ffffff;
padding: 0 40px;
}

.d3-flame-graph rect {
stroke: rgba(55, 118, 171, 0.3) !important;
stroke-width: 1px !important;
cursor: pointer;
transition: all 0.1s ease;
}

.d3-flame-graph rect:hover {
stroke: #3776ab !important;
stroke-width: 2px !important;
filter: brightness(1.05);
}

.d3-flame-graph text {
font-family: "Source Sans Pro", sans-serif !important;
font-size: 12px !important;
font-weight: 500 !important;
fill: #2e3338 !important;
pointer-events: none !important;
}

.info-panel {
position: fixed;
bottom: 24px;
left: 84px; /* Leave space for the button */
background: white;
padding: 24px;
border-radius: 8px;
border: 1px solid #e9ecef;
font-size: 14px;
max-width: 280px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
z-index: 1000;
display: none;
}

.info-panel h3 {
margin: 0 0 16px 0;
color: #3776ab;
font-weight: 600;
font-size: 16px;
border-bottom: 2px solid #ffd43b;
padding-bottom: 8px;
}

.info-panel p {
margin: 12px 0;
color: #5a6c7d;
line-height: 1.5;
}

.info-panel strong {
color: #3776ab;
}

#show-info-btn {
position: fixed;
bottom: 32px;
left: 32px;
z-index: 1100;
width: 44px;
height: 44px;
border-radius: 50%;
background: #3776ab;
color: white;
border: none;
font-size: 24px;
box-shadow: 0 2px 8px rgba(55, 118, 171, 0.15);
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
transition: background 0.2s;
}

#show-info-btn:hover {
background: #2d5aa0;
}

#close-info-btn {
position: absolute;
top: 8px;
right: 12px;
background: none;
border: none;
font-size: 20px;
cursor: pointer;
color: #3776ab;
}

@media (max-width: 600px) {
#show-info-btn {
left: 8px !important;
bottom: 8px !important;
}
.info-panel {
left: 60px !important; /* Still leave space for button */
bottom: 8px !important;
max-width: 90vw !important;
}
}

.legend-panel {
position: fixed;
top: 24px;
left: 24px;
background: white;
padding: 24px;
border-radius: 8px;
border: 1px solid #e9ecef;
font-size: 14px;
max-width: 320px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
display: none;
z-index: 1001;
}

.legend-panel h3 {
margin: 0 0 20px 0;
color: #3776ab;
font-weight: 600;
font-size: 18px;
text-align: center;
border-bottom: 2px solid #ffd43b;
padding-bottom: 8px;
}

.legend-item {
display: flex;
align-items: center;
margin: 12px 0;
padding: 10px;
border-radius: 6px;
background: #f8f9fa;
border: 1px solid #e9ecef;
}

.legend-color {
width: 28px;
height: 18px;
border-radius: 4px;
margin-right: 16px;
border: 1px solid rgba(0, 0, 0, 0.1);
flex-shrink: 0;
}

.legend-label {
color: #2e3338;
font-weight: 600;
flex: 1;
}

.legend-description {
color: #5a6c7d;
font-size: 12px;
margin-top: 2px;
font-weight: 400;
}

.chart-container {
background: #ffffff;
margin: 0;
padding: 12px 0;
}
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