Files
llama-swap/internal/ring/buffer_test.go
T
Benson Wong 7e3e94a08a proxy,ui: add performance monitoring with Prometheus metrics (#743)
Add a comprehensive performance monitoring system that collects CPU, memory, swap, load average, network IO, and GPU stats. Provides both a REST API for the UI and a Prometheus /metrics endpoint.

Backend changes:
- New internal/perf package with configurable interval-based stats collection
- GPU monitoring via LACT (Unix socket) and nvidia-smi fallback on Linux
- Ring buffer (internal/ring) for time-series stat storage
- Prometheus /metrics endpoint with all system and GPU metrics
- Moved LogMonitor to internal/logmon package
- New PerformanceConfig for hot-reloadable monitoring settings
- REST /api/performance endpoint replacing SSE streaming

UI changes:
- New Performance page with real-time charts for CPU, memory, GPU, and network
- Reusable PerformanceChart component
- LLAMA_SWAP_URL environment variable support
- Improved capture dialog display

Other:
- Example Grafana dashboard for Prometheus metrics
- monitor-test standalone binary
- Config schema and example updates

fixes #596
2026-05-09 13:29:22 -07:00

66 lines
1.2 KiB
Go

package ring
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestBuffer_EmptySliceIsNil(t *testing.T) {
b := NewBuffer[int](4)
assert.Nil(t, b.Slice())
}
func TestBuffer_PushBelowCapacity(t *testing.T) {
b := NewBuffer[int](4)
b.Push(1)
b.Push(2)
assert.Equal(t, []int{1, 2}, b.Slice())
}
func TestBuffer_PushAtCapacity(t *testing.T) {
b := NewBuffer[int](3)
b.Push(1)
b.Push(2)
b.Push(3)
assert.Equal(t, []int{1, 2, 3}, b.Slice())
}
func TestBuffer_PushOverCapacityEvictsOldest(t *testing.T) {
b := NewBuffer[int](3)
b.Push(1)
b.Push(2)
b.Push(3)
b.Push(4)
assert.Equal(t, []int{2, 3, 4}, b.Slice())
}
func TestBuffer_CapacityOne(t *testing.T) {
b := NewBuffer[int](1)
b.Push(1)
b.Push(2)
assert.Equal(t, []int{2}, b.Slice())
}
func TestBuffer_ZeroCapacityDefaultsToOne(t *testing.T) {
b := NewBuffer[int](0)
b.Push(42)
assert.Equal(t, []int{42}, b.Slice())
}
func TestBuffer_SliceReturnsCopy(t *testing.T) {
b := NewBuffer[int](4)
b.Push(10)
s := b.Slice()
s[0] = 99
assert.Equal(t, []int{10}, b.Slice())
}
func TestBuffer_InsertionOrderPreservedAfterWrap(t *testing.T) {
b := NewBuffer[int](4)
for i := 1; i <= 8; i++ {
b.Push(i)
}
assert.Equal(t, []int{5, 6, 7, 8}, b.Slice())
}