Offline Cross Profiler __exclusive__ -

type Event struct Ts uint64 PID uint32 Domain string // "cpu", "mem", "io" Key string // "cycles", "page_fault", "write_bytes" Value uint64 Stack []uintptr

type RingRecorder struct buffer []Event head atomic.Uint64 fd *os.File compressor *snappy.Writer offline cross profiler

if idx%1024 == 0 // Flush every 1024 events r.flush() type Event struct Ts uint64 PID uint32 Domain

"CPU usage is 50%. I don't see the problem." "io" Key string // "cycles"

func (r *RingRecorder) flush() // Snappy compress and write to offline file // No analysis happens here.