// If this happens, it means that we may have attempted to release part
		// of a physical page, but the likely effect of that is that it released
		// the whole physical page, some of which may have still been in-use.
		// This could lead to memory corruption. Throw.
		throw("released less than one physical page of memory")
	}
	return
}

// Background scavenger.
//

	//   traceback may crash (and we want as much output as possible) or the stack
	//   may be changing.
	//
	// - Each physical frame can represent several logical frames, so we might
	//   have to pause in the middle of a physical frame and pick up in the middle
	//   of a physical frame.
	//
	// - The cgo symbolizer can expand a cgo PC to more than one logical frame,

	"internal/goarch"
	"internal/runtime/atomic"
	"runtime/internal/sys"
	"unsafe"
)

const (
	// minPhysPageSize is a lower-bound on the physical page size. The
	// true physical page size may be larger than this. In contrast,
	// sys.PhysPageSize is an upper-bound on the physical page size.
	minPhysPageSize = 4096

	// maxPhysPageSize is the maximum page size the runtime supports.
	maxPhysPageSize = 512 << 10

	// there's no point unless we're also returning the physical memory for these
	// metadata mappings back to the OS. That would be quite complex to do in general
	// as the heap is likely fragmented after a reduction in heap size.
	minHeapForMetadataHugePages = 1 << 30
)

// physPageSize is the size in bytes of the OS's physical pages.
// Mapping and unmapping operations must be done at multiples of

				// for older proxies, it defaults to iptables redirect.  If the
				// listener's capture mode specifies NONE, then the proxy wants
				// this listener alone to be on a physical port. If the
				// listener's capture mode is default, then its same as
				// iptables i.e. BindToPort is false.
				bind.bindToPort = true

	Oresv3a     int16    // Reserved
	Oresv3      [2]int32 // Reserved
}

// Section Header
type XcoffScnHdr64 struct {
	Sname    [8]byte // Section Name
	Spaddr   uint64  // Physical Address
	Svaddr   uint64  // Virtual Address
	Ssize    uint64  // Section Size
	Sscnptr  uint64  // File Offset To Raw Data
	Srelptr  uint64  // File Offset To Relocation
	Slnnoptr uint64  // File Offset To Line Numbers

	blockProfile
	mutexProfile

	// size of bucket hash table
	buckHashSize = 179999

	// maxSkip is to account for deferred inline expansion
	// when using frame pointer unwinding. We record the stack
	// with "physical" frame pointers but handle skipping "logical"
	// frames at some point after collecting the stack. So
	// we need extra space in order to avoid getting fewer than the
	// desired maximum number of frames after expansion.

All workers, including compilers and test executors, now start with 512MB of heap. The previous default was 1/4th of physical memory.
Large projects may have to increase this setting on the relevant tasks, e.g. <<config_gradle.adoc#sec:configuring_jvm_memory,`JavaCompile`>> or link:{groovyDslPath}/org.gradle.api.tasks.testing.Test.html[`Test`].

func (b PSAPI_WORKING_SET_EX_BLOCK) Node() uint64 {
	return b.intField(16, 6)
}

// Locked returns the locked status of this page.
// If this bit is 1, the virtual page is locked in physical memory.
func (b PSAPI_WORKING_SET_EX_BLOCK) Locked() bool {
	return (b & (1 << 22)) == 1
}

// LargePage returns the large page status of this page.
// If this bit is 1, the page is a large page.

_Colocate resource with composite device assignment to TPU device._

Pass that co-locates resource ops that use composite device resources
(packed tensors) with the underlying physical TPU device.

So for example, if we have a function that does (inside a `tf_device.replicate`):

```mlir
  %0 = "tf.ReadVariableOp"(%arg1) : (tensor<*x!tf_type.resource<tensor<4xf32>>>) -> tensor<4xf32>
```