},
		{
			Name:        "stringArray",
			InputSchema: arraySchema("string", "", nil),
			// expected JSON is ["","",...] so our length should be (maxRequestSizeBytes - 2) / 3
			ExpectedMaxElements: 1048575,
		},
		{
			Name: "stringMap",
			InputSchema: &schema.Structural{
				Generic: schema.Generic{
					Type: "object",
				},

				Index:      []uint8(nil),
				Checksums:  map[string]string(nil),
			},
		},
		Erasure: ErasureInfo{
			Algorithm:    "ReedSolomon",
			DataBlocks:   6,
			ParityBlocks: 6,
			BlockSize:    1048576,
			Index:        1,
			Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12},
			Checksums:    []ChecksumInfo{{PartNumber: 1, Algorithm: 0x3, Hash: []uint8{}}},
		},
		NumVersions: 1,
		Idx:         0,
	}

}

// HugePageUnitSizeFromByteSize returns hugepage size has the format.
// `size` must be guaranteed to divisible into the largest units that can be expressed.
// <size><unit-prefix>B (1024 = "1KB", 1048576 = "1MB", etc).
func HugePageUnitSizeFromByteSize(size int64) (string, error) {
	// hugePageSizeUnitList is borrowed from opencontainers/runc/libcontainer/cgroups/utils.go

  local mem

  # Linux kernel version >=3.14, in kb
  if mem=$(grep MemAvailable /proc/meminfo | awk '{ print $2 }'); then
    echo $(( mem / 1048576 ))
    return
  fi

  # Linux, in kb
  if mem=$(grep MemTotal /proc/meminfo | awk '{ print $2 }'); then
    echo $(( mem / 1048576 ))
    return
  fi

  # OS X, in bytes. Note that get_physmem, as used, should only ever

		{1000, DecimalSI, "1", true},
		{1234000, DecimalSI, "1234", true},
		{1024, BinarySI, "1024m", false}, // Format changes
		{1000000, "invalidFormatDefaultsToExponent", "1e3", true},
		{1024 * 1024, BinarySI, "1048576m", false}, // Format changes
	}

	for _, item := range table {
		q := NewMilliQuantity(item.value, item.format)
		if e, a := item.expect, q.String(); e != a {
			t.Errorf("Expected %v, got %v; %#v", e, a, q)

	DISPATCH(runtime·call32768, 32768)
	DISPATCH(runtime·call65536, 65536)
	DISPATCH(runtime·call131072, 131072)
	DISPATCH(runtime·call262144, 262144)
	DISPATCH(runtime·call524288, 524288)
	DISPATCH(runtime·call1048576, 1048576)
	DISPATCH(runtime·call2097152, 2097152)
	DISPATCH(runtime·call4194304, 4194304)
	DISPATCH(runtime·call8388608, 8388608)
	DISPATCH(runtime·call16777216, 16777216)
	DISPATCH(runtime·call33554432, 33554432)

				ModTime:  time.Unix(1314603082, 0),
			}, nil},
			testWrite{"", 0, nil},

			testClose{nil},
		},
	}, {
		// The truncated test file was produced using these commands:
		//   dd if=/dev/zero bs=1048576 count=16384 > /tmp/16gig.txt
		//   tar -b 1 -c -f- /tmp/16gig.txt | dd bs=512 count=8 > writer-big.tar
		file: "testdata/writer-big.tar",
		tests: []testFnc{
			testHeader{Header{
				Typeflag: TypeReg,

			setMaxElements:   40000,
			expectedSetCost:  0,
		},
		{
			name:             "map of durations with all",
			schemaGenerator:  genMapWithRule("duration", "self.all(x, true)"),
			expectedCalcCost: 1048577,
			setMaxElements:   5,
			expectedSetCost:  17,
		},
		{
			name:             "map of durations with has",
			schemaGenerator:  genMapWithRule("duration", "has(self.x)"),
			expectedCalcCost: 0,

		auxType:        auxInt64,
		argLen:         2,
		clobberFlags:   true,
		faultOnNilArg0: true,
		unsafePoint:    true,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 1048576}, // R20
			},
			clobbers: 1048576, // R20
		},
	},
	{
		name:           "LoweredZeroShort",
		auxType:        auxInt64,
		argLen:         2,
		faultOnNilArg0: true,
		unsafePoint:    true,

HeapAlloc dt=5 heapalloc_value=20453000
HeapAlloc dt=6 heapalloc_value=20461192
HeapAlloc dt=5 heapalloc_value=20469384
HeapAlloc dt=6 heapalloc_value=20477576
HeapAlloc dt=5 heapalloc_value=20485768
HeapAlloc dt=6 heapalloc_value=20493960
HeapAlloc dt=5 heapalloc_value=20502152
HeapAlloc dt=6 heapalloc_value=20510344
HeapAlloc dt=9 heapalloc_value=20518536
HeapAlloc dt=6 heapalloc_value=20526728