87dce5f8f6
- Add token and performance metrics for v1/chat/completions - Add Activity Page in UI - Add /api/metrics endpoint Contributed by @g2mt
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
package proxy
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import (
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"encoding/json"
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"sync"
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"time"
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"github.com/mostlygeek/llama-swap/event"
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)
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// TokenMetrics represents parsed token statistics from llama-server logs
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type TokenMetrics struct {
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ID int `json:"id"`
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Timestamp time.Time `json:"timestamp"`
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Model string `json:"model"`
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InputTokens int `json:"input_tokens"`
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OutputTokens int `json:"output_tokens"`
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TokensPerSecond float64 `json:"tokens_per_second"`
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DurationMs int `json:"duration_ms"`
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}
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// TokenMetricsEvent represents a token metrics event
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type TokenMetricsEvent struct {
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Metrics TokenMetrics
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}
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func (e TokenMetricsEvent) Type() uint32 {
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return TokenMetricsEventID // defined in events.go
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}
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// MetricsMonitor parses llama-server output for token statistics
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type MetricsMonitor struct {
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mu sync.RWMutex
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metrics []TokenMetrics
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maxMetrics int
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nextID int
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}
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func NewMetricsMonitor(config *Config) *MetricsMonitor {
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maxMetrics := config.MetricsMaxInMemory
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if maxMetrics <= 0 {
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maxMetrics = 1000 // Default fallback
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}
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mp := &MetricsMonitor{
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maxMetrics: maxMetrics,
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}
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return mp
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}
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// addMetrics adds a new metric to the collection and publishes an event
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func (mp *MetricsMonitor) addMetrics(metric TokenMetrics) {
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mp.mu.Lock()
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defer mp.mu.Unlock()
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metric.ID = mp.nextID
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mp.nextID++
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mp.metrics = append(mp.metrics, metric)
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if len(mp.metrics) > mp.maxMetrics {
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mp.metrics = mp.metrics[len(mp.metrics)-mp.maxMetrics:]
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}
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event.Emit(TokenMetricsEvent{Metrics: metric})
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}
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// GetMetrics returns a copy of the current metrics
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func (mp *MetricsMonitor) GetMetrics() []TokenMetrics {
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mp.mu.RLock()
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defer mp.mu.RUnlock()
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result := make([]TokenMetrics, len(mp.metrics))
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copy(result, mp.metrics)
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return result
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}
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// GetMetricsJSON returns metrics as JSON
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func (mp *MetricsMonitor) GetMetricsJSON() ([]byte, error) {
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mp.mu.RLock()
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defer mp.mu.RUnlock()
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return json.Marshal(mp.metrics)
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}
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