// drive timeout by default is 2 minutes, we do not need to wait longer.
	return save(name, time.Minute)
}

// dataUsageCacheVer indicates the cache version.
// Bumping the cache version will drop data from previous versions
// and write new data with the new version.
const (
	dataUsageCacheVerCurrent = 8
	dataUsageCacheVerV7      = 7
	dataUsageCacheVerV6      = 6

			// Not blocking on a lock.
			break
		}
		// Blocking on a lock, measure it. Note that because we're
		// sampling, we have to multiply by our sampling period to get
		// a more representative estimate of the absolute value.
		// gTrackingPeriod also represents an accurate sampling period
		// because we can only enter this state from _Grunning.
		now := nanotime()

			}

			const timerSlop = 1.5 * samplingSlop // account for nanotime vs cputicks, plus the two views' independent sampling
			if profileGrowth > timerSlop*metricGrowth || metricGrowth > timerSlop*profileGrowth {
				t.Errorf("views differ by more than %fx", timerSlop)
			}
		})
	})

	p0, saveOpenDeferState := p, p.deferBitsPtr != nil && *p.deferBitsPtr != 0

	// Unwind the panic stack.
	for ; p != nil && uintptr(p.startSP) < sp; p = p.link {
		// Don't allow jumping past a pending Goexit.
		// Instead, have its _panic.start() call return again.
		//
		// TODO(mdempsky): In this case, Goexit will resume walking the
		// stack where it left off, which means it will need to rewalk

		// didn't create them itself.
		jumpedChains.Delete("ACCEPT", "REJECT", "DROP", "MARK", "RETURN", "DNAT", "SNAT", "MASQUERADE")

		// Find cases where we have "-A FOO ... -j BAR" but no ":BAR", meaning
		// that we are jumping to a chain that was not created.
		missingChains := jumpedChains.Difference(createdChains)
		missingChains = missingChains.Union(filledChains.Difference(createdChains))
		if len(missingChains) > 0 {

        `choose_from_datasets`. Setting `stop_on_empty_dataset=True` will stop
        sampling if it encounters an empty dataset. This preserves the sampling
        ratio throughout training. The prior behavior was to continue sampling,
        skipping over exhausted datasets, until all datasets are exhausted. By
        default, the original behavior (`stop_on_empty_dataset=False`) is

  //
  // This can be set either to image name if hub is also set, or can be set to the full hub:name string.
  //
  // Examples: custom-pilot, docker.io/someuser:custom-pilot
  string image = 6;

  // Trace sampling fraction.
  //
  // Used to set the fraction of time that traces are sampled. Higher values are more accurate but add CPU overhead.
  //
  // Allowed values: 0.0 to 1.0
  double traceSampling = 8;

- This PR adds tracing support to the kubelet's read-only endpoint, which currently does not have tracing. It makes use the WithPublicEndpoint option to prevent callers from influencing sampling decisions. ([#121770](https://github.com/kubernetes/kubernetes/pull/121770), [@frzifus](https://github.com/frzifus)) [SIG Node]

// On return, u.frame contains:
//   - fp is the stack pointer of the caller.
//   - lr is the program counter that called fn.
//   - varp, argp, and continpc are populated for the current frame.
//
// If fn is a stack-jumping function, resolveInternal can change the entire
// frame state to follow that stack jump.
//
// This is internal to unwinder.
func (u *unwinder) resolveInternal(innermost, isSyscall bool) {
	frame := &u.frame

					if seenNow {
						t.Fatalf("unexpected recursive time.now")
					}
					seenNow = true
				}
			}
		}
	}
}

func TestProfilerStackDepth(t *testing.T) {
	// Disable sampling, otherwise it's difficult to assert anything.
	oldMemRate := runtime.MemProfileRate
	runtime.MemProfileRate = 1
	runtime.SetBlockProfileRate(1)
	oldMutexRate := runtime.SetMutexProfileFraction(1)