logAndDie(err)
		}
		var f traceviewer.ProfileFunc
		switch *pprofFlag {
		case "net":
			f = pprofByGoroutine(computePprofIO(), parsed)
		case "sync":
			f = pprofByGoroutine(computePprofBlock(), parsed)
		case "syscall":
			f = pprofByGoroutine(computePprofSyscall(), parsed)
		case "sched":
			f = pprofByGoroutine(computePprofSched(), parsed)
		default:
			logAndDie(fmt.Errorf("unknown pprof type %s\n", *pprofFlag))
		}

// Serving of pprof-like profiles.

package main

import (
	"cmp"
	"fmt"
	"internal/trace"
	"internal/trace/traceviewer"
	"net/http"
	"slices"
	"strings"
	"time"
)

func pprofByGoroutine(compute computePprofFunc, t *parsedTrace) traceviewer.ProfileFunc {
	return func(r *http.Request) ([]traceviewer.ProfileRecord, error) {
		name := r.FormValue("name")
		gToIntervals, err := pprofMatchingGoroutines(name, t)