feat(audit): add platform thermal cycling stress test

Runs CPU (stressapptest) + GPU stress simultaneously across multiple
load/idle cycles with varying idle durations (120s/60s/30s) to detect
cooling systems that fail to recover under repeated load.

Presets: smoke (~5 min), acceptance (~25 min), overnight (~100 min).
Outputs metrics.csv + summary.txt with per-cycle throttle and fan
spindown analysis, packed as tar.gz.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-03-29 21:57:33 +03:00
parent 407c1cd1c4
commit 7c2a0135d2
6 changed files with 527 additions and 1 deletions

View File

@@ -120,6 +120,7 @@ type satRunner interface {
RunMemoryStressPack(ctx context.Context, baseDir string, durationSec int, logFunc func(string)) (string, error)
RunSATStressPack(ctx context.Context, baseDir string, durationSec int, logFunc func(string)) (string, error)
RunFanStressTest(ctx context.Context, baseDir string, opts platform.FanStressOptions) (string, error)
RunPlatformStress(ctx context.Context, baseDir string, opts platform.PlatformStressOptions, logFunc func(string)) (string, error)
RunNCCLTests(ctx context.Context, baseDir string, logFunc func(string)) (string, error)
}
@@ -627,6 +628,13 @@ func (a *App) RunFanStressTest(ctx context.Context, baseDir string, opts platfor
return a.sat.RunFanStressTest(ctx, baseDir, opts)
}
func (a *App) RunPlatformStress(ctx context.Context, baseDir string, opts platform.PlatformStressOptions, logFunc func(string)) (string, error) {
if strings.TrimSpace(baseDir) == "" {
baseDir = DefaultSATBaseDir
}
return a.sat.RunPlatformStress(ctx, baseDir, opts, logFunc)
}
func (a *App) RunNCCLTestsResult(ctx context.Context) (ActionResult, error) {
path, err := a.sat.RunNCCLTests(ctx, DefaultSATBaseDir, nil)
body := "Results: " + path

View File

@@ -203,6 +203,10 @@ func (f fakeSAT) RunFanStressTest(_ context.Context, _ string, _ platform.FanStr
return "", nil
}
func (f fakeSAT) RunPlatformStress(_ context.Context, _ string, _ platform.PlatformStressOptions, _ func(string)) (string, error) {
return "", nil
}
func (f fakeSAT) RunNCCLTests(_ context.Context, _ string, _ func(string)) (string, error) {
return "", nil
}

View File

@@ -0,0 +1,476 @@
package platform
import (
"archive/tar"
"bytes"
"compress/gzip"
"context"
"encoding/csv"
"fmt"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"sync"
"time"
)
// PlatformStressCycle defines one load+idle cycle.
type PlatformStressCycle struct {
LoadSec int // seconds of simultaneous CPU+GPU stress
IdleSec int // seconds of idle monitoring after load cut
}
// PlatformStressOptions controls the thermal cycling test.
type PlatformStressOptions struct {
Cycles []PlatformStressCycle
}
// platformStressRow is one second of telemetry.
type platformStressRow struct {
ElapsedSec float64
Cycle int
Phase string // "load" | "idle"
CPULoadPct float64
MaxCPUTempC float64
MaxGPUTempC float64
SysPowerW float64
FanMinRPM float64
FanMaxRPM float64
GPUThrottled bool
}
// RunPlatformStress runs repeated load+idle thermal cycling.
// Each cycle starts CPU (stressapptest) and GPU stress simultaneously,
// runs for LoadSec, then cuts load abruptly and monitors for IdleSec.
func (s *System) RunPlatformStress(
ctx context.Context,
baseDir string,
opts PlatformStressOptions,
logFunc func(string),
) (string, error) {
if logFunc == nil {
logFunc = func(string) {}
}
if len(opts.Cycles) == 0 {
return "", fmt.Errorf("no cycles defined")
}
if err := os.MkdirAll(baseDir, 0755); err != nil {
return "", fmt.Errorf("mkdir %s: %w", baseDir, err)
}
stamp := time.Now().UTC().Format("20060102-150405")
runDir := filepath.Join(baseDir, "platform-stress-"+stamp)
if err := os.MkdirAll(runDir, 0755); err != nil {
return "", fmt.Errorf("mkdir run dir: %w", err)
}
vendor := s.DetectGPUVendor()
logFunc(fmt.Sprintf("Platform Thermal Cycling — %d cycle(s), GPU vendor: %s", len(opts.Cycles), vendor))
var rows []platformStressRow
start := time.Now()
var analyses []cycleAnalysis
for i, cycle := range opts.Cycles {
if ctx.Err() != nil {
break
}
cycleNum := i + 1
logFunc(fmt.Sprintf("--- Cycle %d/%d: load=%ds, idle=%ds ---", cycleNum, len(opts.Cycles), cycle.LoadSec, cycle.IdleSec))
// ── LOAD PHASE ───────────────────────────────────────────────────────
loadCtx, loadCancel := context.WithTimeout(ctx, time.Duration(cycle.LoadSec)*time.Second)
var wg sync.WaitGroup
// CPU stress
wg.Add(1)
go func() {
defer wg.Done()
cpuCmd, err := buildCPUStressCmd(loadCtx)
if err != nil {
logFunc("CPU stress: " + err.Error())
return
}
_ = cpuCmd.Wait() // exits when loadCtx times out (SIGKILL)
}()
// GPU stress
wg.Add(1)
go func() {
defer wg.Done()
gpuCmd := buildGPUStressCmd(loadCtx, vendor)
if gpuCmd == nil {
return
}
_ = gpuCmd.Wait()
}()
// Monitoring goroutine for load phase
loadRows := collectPhase(loadCtx, cycleNum, "load", start)
for _, r := range loadRows {
logFunc(formatPlatformRow(r))
}
rows = append(rows, loadRows...)
loadCancel()
wg.Wait()
if len(loadRows) > 0 {
logFunc(fmt.Sprintf("Cycle %d load ended (%.0fs)", cycleNum, loadRows[len(loadRows)-1].ElapsedSec))
}
// ── IDLE PHASE ───────────────────────────────────────────────────────
idleCtx, idleCancel := context.WithTimeout(ctx, time.Duration(cycle.IdleSec)*time.Second)
idleRows := collectPhase(idleCtx, cycleNum, "idle", start)
for _, r := range idleRows {
logFunc(formatPlatformRow(r))
}
rows = append(rows, idleRows...)
idleCancel()
// Per-cycle analysis
an := analyzePlatformCycle(loadRows, idleRows)
analyses = append(analyses, an)
logFunc(fmt.Sprintf("Cycle %d: maxCPU=%.1f°C maxGPU=%.1f°C power=%.0fW throttled=%v fanDrop=%.0f%%",
cycleNum, an.maxCPUTemp, an.maxGPUTemp, an.maxPower, an.throttled, an.fanDropPct))
}
// Write CSV
csvData := writePlatformCSV(rows)
_ = os.WriteFile(filepath.Join(runDir, "metrics.csv"), csvData, 0644)
// Write summary
summary := writePlatformSummary(opts, analyses)
logFunc("--- Summary ---")
for _, line := range strings.Split(summary, "\n") {
if line != "" {
logFunc(line)
}
}
_ = os.WriteFile(filepath.Join(runDir, "summary.txt"), []byte(summary), 0644)
// Pack tar.gz
archivePath := filepath.Join(baseDir, "platform-stress-"+stamp+".tar.gz")
if err := packPlatformDir(runDir, archivePath); err != nil {
return "", fmt.Errorf("pack archive: %w", err)
}
_ = os.RemoveAll(runDir)
return archivePath, nil
}
// collectPhase samples live metrics every second until ctx is done.
func collectPhase(ctx context.Context, cycle int, phase string, testStart time.Time) []platformStressRow {
var rows []platformStressRow
ticker := time.NewTicker(time.Second)
defer ticker.Stop()
for {
select {
case <-ctx.Done():
return rows
case <-ticker.C:
sample := SampleLiveMetrics()
rows = append(rows, sampleToPlatformRow(sample, cycle, phase, testStart))
}
}
}
func sampleToPlatformRow(s LiveMetricSample, cycle int, phase string, testStart time.Time) platformStressRow {
r := platformStressRow{
ElapsedSec: time.Since(testStart).Seconds(),
Cycle: cycle,
Phase: phase,
CPULoadPct: s.CPULoadPct,
SysPowerW: s.PowerW,
}
for _, t := range s.Temps {
switch t.Group {
case "cpu":
if t.Celsius > r.MaxCPUTempC {
r.MaxCPUTempC = t.Celsius
}
case "gpu":
if t.Celsius > r.MaxGPUTempC {
r.MaxGPUTempC = t.Celsius
}
}
}
for _, g := range s.GPUs {
if g.TempC > r.MaxGPUTempC {
r.MaxGPUTempC = g.TempC
}
}
if len(s.Fans) > 0 {
r.FanMinRPM = s.Fans[0].RPM
r.FanMaxRPM = s.Fans[0].RPM
for _, f := range s.Fans[1:] {
if f.RPM < r.FanMinRPM {
r.FanMinRPM = f.RPM
}
if f.RPM > r.FanMaxRPM {
r.FanMaxRPM = f.RPM
}
}
}
return r
}
func formatPlatformRow(r platformStressRow) string {
throttle := ""
if r.GPUThrottled {
throttle = " THROTTLE"
}
fans := ""
if r.FanMinRPM > 0 {
fans = fmt.Sprintf(" fans=%.0f-%.0fRPM", r.FanMinRPM, r.FanMaxRPM)
}
return fmt.Sprintf("[%5.0fs] cycle=%d phase=%-4s cpu=%.0f%% cpuT=%.1f°C gpuT=%.1f°C pwr=%.0fW%s%s",
r.ElapsedSec, r.Cycle, r.Phase, r.CPULoadPct, r.MaxCPUTempC, r.MaxGPUTempC, r.SysPowerW, fans, throttle)
}
func analyzePlatformCycle(loadRows, idleRows []platformStressRow) cycleAnalysis {
var an cycleAnalysis
for _, r := range loadRows {
if r.MaxCPUTempC > an.maxCPUTemp {
an.maxCPUTemp = r.MaxCPUTempC
}
if r.MaxGPUTempC > an.maxGPUTemp {
an.maxGPUTemp = r.MaxGPUTempC
}
if r.SysPowerW > an.maxPower {
an.maxPower = r.SysPowerW
}
if r.GPUThrottled {
an.throttled = true
}
}
// Fan RPM at cut = avg of last 5 load rows
if n := len(loadRows); n > 0 {
window := loadRows
if n > 5 {
window = loadRows[n-5:]
}
var sum float64
var cnt int
for _, r := range window {
if r.FanMinRPM > 0 {
sum += (r.FanMinRPM + r.FanMaxRPM) / 2
cnt++
}
}
if cnt > 0 {
an.fanAtCutAvg = sum / float64(cnt)
}
}
// Fan RPM min in first 15s of idle
an.fanMin15s = an.fanAtCutAvg
var cutElapsed float64
if len(loadRows) > 0 {
cutElapsed = loadRows[len(loadRows)-1].ElapsedSec
}
for _, r := range idleRows {
if r.ElapsedSec > cutElapsed+15 {
break
}
avg := (r.FanMinRPM + r.FanMaxRPM) / 2
if avg > 0 && (an.fanMin15s == 0 || avg < an.fanMin15s) {
an.fanMin15s = avg
}
}
if an.fanAtCutAvg > 0 {
an.fanDropPct = (an.fanAtCutAvg - an.fanMin15s) / an.fanAtCutAvg * 100
}
return an
}
type cycleAnalysis struct {
maxCPUTemp float64
maxGPUTemp float64
maxPower float64
throttled bool
fanAtCutAvg float64
fanMin15s float64
fanDropPct float64
}
func writePlatformSummary(opts PlatformStressOptions, analyses []cycleAnalysis) string {
var b strings.Builder
fmt.Fprintf(&b, "Platform Thermal Cycling — %d cycle(s)\n", len(opts.Cycles))
fmt.Fprintf(&b, "%s\n\n", strings.Repeat("=", 48))
totalThrottle := 0
totalFanWarn := 0
for i, an := range analyses {
cycle := opts.Cycles[i]
fmt.Fprintf(&b, "Cycle %d/%d (load=%ds, idle=%ds)\n", i+1, len(opts.Cycles), cycle.LoadSec, cycle.IdleSec)
fmt.Fprintf(&b, " Max CPU temp: %.1f°C\n", an.maxCPUTemp)
fmt.Fprintf(&b, " Max GPU temp: %.1f°C\n", an.maxGPUTemp)
fmt.Fprintf(&b, " Max sys power: %.0f W\n", an.maxPower)
if an.throttled {
fmt.Fprintf(&b, " Throttle: DETECTED\n")
totalThrottle++
} else {
fmt.Fprintf(&b, " Throttle: none\n")
}
if an.fanAtCutAvg > 0 {
fmt.Fprintf(&b, " Fan at load cut: %.0f RPM avg\n", an.fanAtCutAvg)
fmt.Fprintf(&b, " Fan min (first 15s idle): %.0f RPM (drop %.0f%%)\n", an.fanMin15s, an.fanDropPct)
if an.fanDropPct > 20 {
fmt.Fprintf(&b, " Fan response: WARN — fast spindown (>20%% drop in 15s)\n")
totalFanWarn++
} else {
fmt.Fprintf(&b, " Fan response: OK\n")
}
}
b.WriteString("\n")
}
fmt.Fprintf(&b, "%s\n", strings.Repeat("=", 48))
if totalThrottle > 0 {
fmt.Fprintf(&b, "Overall: FAIL — throttle detected in %d/%d cycles\n", totalThrottle, len(analyses))
} else if totalFanWarn > 0 {
fmt.Fprintf(&b, "Overall: WARN — fast fan spindown in %d/%d cycles (cooling recovery risk)\n", totalFanWarn, len(analyses))
} else {
fmt.Fprintf(&b, "Overall: PASS\n")
}
return b.String()
}
func writePlatformCSV(rows []platformStressRow) []byte {
var buf bytes.Buffer
w := csv.NewWriter(&buf)
_ = w.Write([]string{
"elapsed_sec", "cycle", "phase",
"cpu_load_pct", "max_cpu_temp_c", "max_gpu_temp_c",
"sys_power_w", "fan_min_rpm", "fan_max_rpm", "gpu_throttled",
})
for _, r := range rows {
throttled := "0"
if r.GPUThrottled {
throttled = "1"
}
_ = w.Write([]string{
strconv.FormatFloat(r.ElapsedSec, 'f', 1, 64),
strconv.Itoa(r.Cycle),
r.Phase,
strconv.FormatFloat(r.CPULoadPct, 'f', 1, 64),
strconv.FormatFloat(r.MaxCPUTempC, 'f', 1, 64),
strconv.FormatFloat(r.MaxGPUTempC, 'f', 1, 64),
strconv.FormatFloat(r.SysPowerW, 'f', 1, 64),
strconv.FormatFloat(r.FanMinRPM, 'f', 0, 64),
strconv.FormatFloat(r.FanMaxRPM, 'f', 0, 64),
throttled,
})
}
w.Flush()
return buf.Bytes()
}
// buildCPUStressCmd creates a stressapptest command that runs until ctx is cancelled.
func buildCPUStressCmd(ctx context.Context) (*exec.Cmd, error) {
path, err := satLookPath("stressapptest")
if err != nil {
return nil, fmt.Errorf("stressapptest not found: %w", err)
}
// Use a very long duration; the context timeout will kill it at the right time.
cmd := exec.CommandContext(ctx, path, "-s", "86400", "-W", "--cc_test")
cmd.Stdout = nil
cmd.Stderr = nil
if err := cmd.Start(); err != nil {
return nil, fmt.Errorf("stressapptest start: %w", err)
}
return cmd, nil
}
// buildGPUStressCmd creates a GPU stress command appropriate for the detected vendor.
// Returns nil if no GPU stress tool is available (CPU-only cycling still useful).
func buildGPUStressCmd(ctx context.Context, vendor string) *exec.Cmd {
switch strings.ToLower(vendor) {
case "amd":
return buildAMDGPUStressCmd(ctx)
case "nvidia":
return buildNvidiaGPUStressCmd(ctx)
}
return nil
}
func buildAMDGPUStressCmd(ctx context.Context) *exec.Cmd {
rvsArgs, err := resolveRVSCommand()
if err != nil {
return nil
}
rvsPath := rvsArgs[0]
cfg := `actions:
- name: gst_platform
device: all
module: gst
parallel: true
duration: 86400000
copy_matrix: false
target_stress: 90
matrix_size_a: 8640
matrix_size_b: 8640
matrix_size_c: 8640
`
cfgFile := "/tmp/bee-platform-gst.conf"
_ = os.WriteFile(cfgFile, []byte(cfg), 0644)
cmd := exec.CommandContext(ctx, rvsPath, "-c", cfgFile)
cmd.Stdout = nil
cmd.Stderr = nil
_ = cmd.Start()
return cmd
}
func buildNvidiaGPUStressCmd(ctx context.Context) *exec.Cmd {
path, err := satLookPath("bee-gpu-stress")
if err != nil {
return nil
}
cmd := exec.CommandContext(ctx, path, "--seconds", "86400", "--size-mb", "64")
cmd.Stdout = nil
cmd.Stderr = nil
_ = cmd.Start()
return cmd
}
func packPlatformDir(dir, dest string) error {
f, err := os.Create(dest)
if err != nil {
return err
}
defer f.Close()
gz := gzip.NewWriter(f)
defer gz.Close()
tw := tar.NewWriter(gz)
defer tw.Close()
entries, err := os.ReadDir(dir)
if err != nil {
return err
}
base := filepath.Base(dir)
for _, e := range entries {
if e.IsDir() {
continue
}
fpath := filepath.Join(dir, e.Name())
data, err := os.ReadFile(fpath)
if err != nil {
continue
}
hdr := &tar.Header{
Name: filepath.Join(base, e.Name()),
Size: int64(len(data)),
Mode: 0644,
ModTime: time.Now(),
}
if err := tw.WriteHeader(hdr); err != nil {
return err
}
if _, err := tw.Write(data); err != nil {
return err
}
}
return nil
}

View File

@@ -615,6 +615,10 @@ func renderBurn() string {
<p style="color:var(--muted);font-size:12px;margin-bottom:8px">Google stressapptest saturates CPU, memory and cache buses simultaneously. Env: <code>BEE_SAT_STRESS_SECONDS</code> (default 300), <code>BEE_SAT_STRESS_MB</code> (default auto).</p>
<button class="btn btn-primary" onclick="runBurnIn('sat-stress')">&#9654; Start SAT Stress</button>
</div></div>
<div class="card"><div class="card-head">Platform Thermal Cycling</div><div class="card-body">
<p style="color:var(--muted);font-size:12px;margin-bottom:8px">Runs CPU + GPU stress simultaneously across multiple load/idle cycles with varying durations. Detects cooling systems that fail to recover under repeated load cycles. Smoke: 2 cycles ~5 min. Acceptance: 4 cycles ~25 min.</p>
<button class="btn btn-primary" onclick="runBurnIn('platform-stress')">&#9654; Start Thermal Cycling</button>
</div></div>
</div>
<div id="bi-output" style="display:none;margin-top:16px" class="card">
<div class="card-head">Output <span id="bi-title"></span></div>

View File

@@ -215,6 +215,7 @@ func NewHandler(opts HandlerOptions) http.Handler {
mux.HandleFunc("POST /api/sat/amd-stress/run", h.handleAPISATRun("amd-stress"))
mux.HandleFunc("POST /api/sat/memory-stress/run", h.handleAPISATRun("memory-stress"))
mux.HandleFunc("POST /api/sat/sat-stress/run", h.handleAPISATRun("sat-stress"))
mux.HandleFunc("POST /api/sat/platform-stress/run", h.handleAPISATRun("platform-stress"))
mux.HandleFunc("GET /api/sat/stream", h.handleAPISATStream)
mux.HandleFunc("POST /api/sat/abort", h.handleAPISATAbort)

View File

@@ -12,6 +12,7 @@ import (
"time"
"bee/audit/internal/app"
"bee/audit/internal/platform"
)
// Task statuses.
@@ -34,7 +35,8 @@ var taskNames = map[string]string{
"amd-bandwidth": "AMD GPU MEM Bandwidth",
"amd-stress": "AMD GPU Burn-in",
"memory-stress": "Memory Burn-in",
"sat-stress": "SAT Stress (stressapptest)",
"sat-stress": "SAT Stress (stressapptest)",
"platform-stress": "Platform Thermal Cycling",
"audit": "Audit",
"install": "Install to Disk",
"install-to-ram": "Install to RAM",
@@ -98,6 +100,34 @@ func resolveBurnPreset(profile string) burnPreset {
}
}
func resolvePlatformStressPreset(profile string) platform.PlatformStressOptions {
switch profile {
case "overnight":
return platform.PlatformStressOptions{Cycles: []platform.PlatformStressCycle{
{LoadSec: 600, IdleSec: 120},
{LoadSec: 600, IdleSec: 60},
{LoadSec: 600, IdleSec: 30},
{LoadSec: 600, IdleSec: 120},
{LoadSec: 600, IdleSec: 60},
{LoadSec: 600, IdleSec: 30},
{LoadSec: 600, IdleSec: 120},
{LoadSec: 600, IdleSec: 60},
}}
case "acceptance":
return platform.PlatformStressOptions{Cycles: []platform.PlatformStressCycle{
{LoadSec: 300, IdleSec: 60},
{LoadSec: 300, IdleSec: 30},
{LoadSec: 300, IdleSec: 60},
{LoadSec: 300, IdleSec: 30},
}}
default: // smoke
return platform.PlatformStressOptions{Cycles: []platform.PlatformStressCycle{
{LoadSec: 90, IdleSec: 60},
{LoadSec: 90, IdleSec: 30},
}}
}
}
// taskQueue manages a priority-ordered list of tasks and runs them one at a time.
type taskQueue struct {
mu sync.Mutex
@@ -410,6 +440,9 @@ func (q *taskQueue) runTask(t *Task, j *jobState, ctx context.Context) {
dur = resolveBurnPreset(t.params.BurnProfile).DurationSec
}
archive, err = runSATStressPackCtx(a, ctx, "", dur, j.append)
case "platform-stress":
opts := resolvePlatformStressPreset(t.params.BurnProfile)
archive, err = a.RunPlatformStress(ctx, "", opts, j.append)
case "audit":
result, e := a.RunAuditNow(q.opts.RuntimeMode)
if e != nil {