EventString returns the name of a Go 1.22 event.

CPU profiling sample [timestamp, M ID, P ID, goroutine ID, stack ID].

start of a section of CPU samples [...EvCPUSample].

start of per-M batch of events [generation, M ID, timestamp, batch length].

timestamp units per sec [freq].

GC active [timestamp, seq].

GC start [timestamp, seq, stack ID].

GC done [timestamp, seq].

GC mark assist active [timestamp, goroutine ID].

GC mark assist start [timestamp, stack ID].

GC mark assist done [timestamp].

GC sweep active [timestamp, P ID].

GC sweep start [timestamp, stack ID].

GC sweep done [timestamp, swept bytes, reclaimed bytes].

goroutine blocks [timestamp, reason, stack ID].

goroutine creation [timestamp, new goroutine ID, new stack ID, stack ID].

goroutine appears in syscall (cgo callback) [timestamp, new goroutine ID].

goroutine ends [timestamp].

goroutine ends in syscall (cgo callback) [timestamp].

apply string label to current running goroutine [timestamp, label string ID].

goroutine starts running [timestamp, goroutine ID, goroutine seq].

goroutine status at the start of a generation [timestamp, goroutine ID, status].

goroutine yields its time, but is runnable [timestamp, reason, stack ID].

syscall enter [timestamp, P seq, stack ID].

syscall exit [timestamp].

syscall exit and it blocked at some point [timestamp].

goroutine is unblocked [timestamp, goroutine ID, goroutine seq, stack ID].

gcController.heapLive change [timestamp, heap alloc in bytes].

gcController.heapGoal() change [timestamp, heap goal in bytes].

unused.

current value of GOMAXPROCS [timestamp, GOMAXPROCS, stack ID].

start of P [timestamp, P ID, P seq].

P status at the start of a generation [timestamp, P ID, status].

P was stolen [timestamp, P ID, P seq, M ID].

stop of P [timestamp].

stack table entry [ID, ...{PC, func string ID, file string ID, line #}].

start of a section of the stack table [...EvStack].

string dictionary entry [ID, length, string].

start of a section of the string dictionary [...EvString].

STW start [timestamp, kind].

STW done [timestamp].

trace.Log [timestamp, internal task ID, key string ID, stack, value string ID].

trace.{Start,With}Region [timestamp, internal task ID, name string ID, stack ID].

trace.{End,With}Region [timestamp, internal task ID, name string ID, stack ID].

trace.NewTask [timestamp, internal task ID, internal parent task ID, name string ID, stack ID].

end of a task [timestamp, internal task ID, stack ID].

Various format-specific constants.