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feat: Enhanced Pinning Analysis with Stack Trace Grouping #18

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Merged
rlaope merged 3 commits into from
Jan 21, 2026
Merged

feat: Enhanced Pinning Analysis with Stack Trace Grouping #18

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e7760d6
feat :: virtual thread pinned tracking
rlaope Jan 21, 2026
48583dc
fix: standardize default server port to 9202
rlaope Jan 21, 2026
f9d3ca3
refactor :: argus dashboard
rlaope Jan 21, 2026
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242 changes: 239 additions & 3 deletions argus-frontend/src/main/resources/public/css/style.css
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,147 @@ main {
height: 180px;
}

/* Hotspots Section */
.hotspots-section {
background-color: var(--bg-secondary);
border: 1px solid var(--border-color);
border-radius: 8px;
margin-bottom: 1.5rem;
overflow: hidden;
}

.hotspots-section .section-header {
background-color: var(--bg-tertiary);
border-bottom: 1px solid var(--border-color);
justify-content: space-between;
}

.hotspots-section .section-header h2 {
color: var(--accent-orange);
}

.hotspots-summary {
display: flex;
gap: 2rem;
padding: 0.75rem 1.5rem;
background-color: var(--bg-tertiary);
border-bottom: 1px solid var(--border-color);
font-size: 0.875rem;
color: var(--text-secondary);
}

.hotspots-summary strong {
color: var(--text-primary);
}

.hotspots-list {
max-height: 400px;
overflow-y: auto;
padding: 0.5rem;
}

.hotspot-item {
background-color: var(--bg-tertiary);
border-radius: 6px;
padding: 1rem;
margin-bottom: 0.5rem;
border-left: 3px solid var(--accent-orange);
}

.hotspot-item:last-child {
margin-bottom: 0;
}

.hotspot-header {
display: flex;
justify-content: space-between;
align-items: flex-start;
margin-bottom: 0.5rem;
}

.hotspot-rank {
display: flex;
align-items: center;
gap: 0.5rem;
}

.hotspot-rank-number {
background-color: var(--accent-orange);
color: var(--bg-primary);
width: 24px;
height: 24px;
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: 0.75rem;
font-weight: 700;
}

.hotspot-count {
font-size: 0.875rem;
color: var(--text-secondary);
}

.hotspot-count strong {
color: var(--accent-orange);
font-size: 1rem;
}

.hotspot-percentage {
background-color: rgba(210, 153, 34, 0.2);
color: var(--accent-orange);
padding: 0.25rem 0.5rem;
border-radius: 4px;
font-size: 0.75rem;
font-weight: 600;
}

.hotspot-frame {
font-family: 'SF Mono', SFMono-Regular, Consolas, monospace;
font-size: 0.8125rem;
color: var(--text-primary);
word-break: break-all;
margin-bottom: 0.5rem;
}

.hotspot-toggle {
background: none;
border: none;
color: var(--accent-blue);
font-size: 0.75rem;
cursor: pointer;
padding: 0;
}

.hotspot-toggle:hover {
text-decoration: underline;
}

.hotspot-stack {
display: none;
background-color: var(--bg-primary);
border-radius: 4px;
padding: 0.75rem;
margin-top: 0.5rem;
font-family: 'SF Mono', SFMono-Regular, Consolas, monospace;
font-size: 0.75rem;
color: var(--text-secondary);
white-space: pre-wrap;
word-break: break-all;
max-height: 200px;
overflow-y: auto;
}

.hotspot-stack.expanded {
display: block;
}

.btn-small {
padding: 0.25rem 0.75rem;
font-size: 0.75rem;
}

/* Pinned Section */
.pinned-section {
background-color: rgba(248, 81, 73, 0.1);
Expand Down Expand Up @@ -409,10 +550,105 @@ main {
min-height: 300px;
max-height: 500px;
overflow-y: auto;
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
display: flex;
flex-direction: column;
gap: 1rem;
align-content: start;
}

/* Thread State Sections */
.thread-state-section {
background-color: var(--bg-tertiary);
border-radius: 8px;
overflow: hidden;
}

.thread-state-section.pinned {
border: 1px solid var(--accent-red);
background-color: rgba(248, 81, 73, 0.05);
}

.thread-state-section.running {
border: 1px solid var(--accent-green);
}

.thread-state-section.ended {
border: 1px solid var(--border-color);
opacity: 0.8;
}

.thread-state-header {
display: flex;
align-items: center;
gap: 0.75rem;
padding: 0.75rem 1rem;
background-color: var(--bg-secondary);
border-bottom: 1px solid var(--border-color);
}

.state-indicator {
width: 10px;
height: 10px;
border-radius: 50%;
}

.state-indicator.running {
background-color: var(--accent-green);
box-shadow: 0 0 6px var(--accent-green);
}

.state-indicator.pinned {
background-color: var(--accent-red);
box-shadow: 0 0 6px var(--accent-red);
animation: pulse 1s infinite;
}

.state-indicator.ended {
background-color: var(--text-secondary);
}

.state-title {
font-weight: 600;
font-size: 0.875rem;
color: var(--text-primary);
}

.thread-state-section.pinned .state-title {
color: var(--accent-red);
}

.thread-state-section.running .state-title {
color: var(--accent-green);
}

.thread-state-section.ended .state-title {
color: var(--text-secondary);
}

.state-count {
font-size: 0.75rem;
color: var(--text-secondary);
background-color: var(--bg-tertiary);
padding: 0.125rem 0.5rem;
border-radius: 10px;
}

.thread-cards-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
gap: 0.75rem;
padding: 0.75rem;
}

.thread-duration-fill.running {
background-color: var(--accent-green);
}

.thread-duration-fill.pinned {
background-color: var(--accent-red);
}

.thread-duration-fill.ended {
background-color: var(--text-secondary);
}

.empty-state {
Expand Down
17 changes: 16 additions & 1 deletion argus-frontend/src/main/resources/public/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,21 @@ <h3>Thread Duration Distribution</h3>
</div>
</section>

<!-- Pinning Hotspots Section -->
<section id="hotspots-section" class="hotspots-section">
<div class="section-header">
<h2>Pinning Hotspots</h2>
<button id="refresh-hotspots" class="btn btn-small">Refresh</button>
</div>
<div class="hotspots-summary">
<span>Total Pinned: <strong id="hotspots-total">0</strong></span>
<span>Unique Locations: <strong id="hotspots-unique">0</strong></span>
</div>
<div id="hotspots-list" class="hotspots-list">
<div class="empty-state">No pinning events detected yet</div>
</div>
</section>

<!-- Pinned Alerts Section -->
<section id="pinned-section" class="pinned-section hidden">
<div class="section-header">
Expand Down Expand Up @@ -242,6 +257,6 @@ <h3>Pinned Alerts</h3>
<p>Argus Virtual Thread Profiler - Real-time JFR Event Monitoring</p>
</footer>

<script src="/js/app.js"></script>
<script type="module" src="/js/app.js"></script>
</body>
</html>
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