// Typically a non-fixed seed should be used, such as Uint64(), Uint64().
	// Using a fixed seed will produce the same output on every run.
	r := rand.New(rand.NewPCG(1, 2))

	// The tabwriter here helps us generate aligned output.
	w := tabwriter.NewWriter(os.Stdout, 1, 1, 1, ' ', 0)
	defer w.Flush()
	show := func(name string, v1, v2, v3 any) {
		fmt.Fprintf(w, "%s\t%v\t%v\t%v\n", name, v1, v2, v3)
	}

	// On some platforms we need to provide physical page aligned stack
	// allocations. Where the page size is less than the physical page
	// size, we already manage to do this by default.
	needPhysPageAlign := physPageAlignedStacks && typ == spanAllocStack && pageSize < physPageSize

	// If the allocation is small enough, try the page cache!
	// The page cache does not support aligned allocations, so we cannot use

	pgms := []struct {
		text   []byte
		align  string
		hasNop bool
	}{
		{[]byte(x0pgm), "align=0x0", false},     // No alignment or nop adjustments needed
		{[]byte(x16pgm), "align=0x20", false},   // Increased alignment needed
		{[]byte(x32pgm), "align=0x40", false},   // Worst case alignment needed
		{[]byte(x64pgm), "align=0x0", true},     // 0 aligned is default (16B) alignment

				}
			} else {
				// non-empty cell
				useTabs = false
				if b.flags&AlignRight == 0 { // align left
					b.write0(b.buf[pos : pos+c.size])
					pos += c.size
					if j < len(b.widths) {
						b.writePadding(c.width, b.widths[j], false)
					}
				} else { // align right
					if j < len(b.widths) {
						b.writePadding(c.width, b.widths[j], false)
					}

// Arguments are passed in DI, SI, DX, CX, R8, R9, the rest is on stack.
// Callee-saved registers are: BX, BP, R12-R15.
// SP must be 16-byte aligned.
// On Windows:
// Arguments are passed in CX, DX, R8, R9, the rest is on stack.
// Callee-saved registers are: BX, BP, DI, SI, R12-R15.
// SP must be 16-byte aligned. Windows also requires "stack-backing" for the 4 register arguments:
// https://learn.microsoft.com/en-us/cpp/build/x64-calling-convention

		// we don't want to do it every time. But if _stext happens to be
		// page-aligned but isn't the same as Vaddr, we would symbolize
		// wrong. So if the name the addresses aren't page aligned, or if
		// the name is "vmlinux" we read _stext. We can be wrong if: (1)
		// someone passes a kernel path that doesn't contain "vmlinux" AND
		// (2) _stext is page-aligned AND (3) _stext is not at Vaddr
		symbols, err := ef.Symbols()

		expectedHints []topologymanager.TopologyHint
	}{
		{
			// CPU available on numa node[0 ,1]. CPU on numa node 0 can satisfy request of 2 CPU's
			description:   "AlignBySocket:false, Preferred hints does not contains socket aligned hints",
			pod:           *testPod1,
			container:     *testContainer1,
			defaultCPUSet: cpuset.New(2, 3, 11),
			topology:      topoDualSocketMultiNumaPerSocketHT,

	}
	// len(lines) > 1

	// The heuristic in this function tries to handle a few
	// common patterns of /*-style comments: Comments where
	// the opening /* and closing */ are aligned and the
	// rest of the comment text is aligned and indented with
	// blanks or tabs, cases with a vertical "line of stars"
	// on the left, and cases where the closing */ is on the
	// same line as the last comment text.

		})
		return closer.Close()
	}
	return nil
}

func (b *streamingBitrotReader) ReadAt(buf []byte, offset int64) (int, error) {
	var err error
	if offset%b.shardSize != 0 {
		// Offset should always be aligned to b.shardSize
		// Can never happen unless there are programmer bugs
		return 0, errUnexpected
	}
	if b.rc == nil {
		// For the first ReadAt() call we need to open the stream for reading.
		b.currOffset = offset

func init() {
	// Inject metrics.
	ioutilx.OsOpenFile = OpenFile
	ioutilx.OpenFileDirectIO = OpenFileDirectIO
	ioutilx.OsOpen = Open
}

type osMetrics struct {
	// All fields must be accessed atomically and aligned.
	operations [osMetricLast]uint64
	latency    [osMetricLast]lockedLastMinuteLatency
}

// time an os action.
func (o *osMetrics) time(s osMetric) func() {
	startTime := time.Now()
	return func() {