// to sweep N.
	//
	// 2. In sweep N, help with sweep N.
	//
	// At this point we can begin a full cycle N+1.
	//
	// 3. Trigger cycle N+1 by starting sweep termination N+1.
	//
	// 4. Wait for mark termination N+1 to complete.
	//
	// 5. Help with sweep N+1 until it's done.
	//
	// This all has to be written to deal with the fact that the
	// GC may move ahead on its own. For example, when we block

	if size+_PageSize < size {
		throw("out of memory")
	}
	npages := size >> _PageShift
	if size&_PageMask != 0 {
		npages++
	}

	// Deduct credit for this span allocation and sweep if
	// necessary. mHeap_Alloc will also sweep npages, so this only
	// pays the debt down to npage pages.
	deductSweepCredit(npages*_PageSize, npages)

	spc := makeSpanClass(0, noscan)
	s := mheap_.alloc(npages, spc)
	if s == nil {

	EvSTWStart          = 9  // GC mark termination start [timestamp, kind]
	EvSTWDone           = 10 // GC mark termination done [timestamp]
	EvGCSweepStart      = 11 // GC sweep start [timestamp, stack id]
	EvGCSweepDone       = 12 // GC sweep done [timestamp, swept, reclaimed]
	EvGoCreate          = 13 // goroutine creation [timestamp, new goroutine id, new stack id, stack id]

	// access (since that may free the backing store).
	allspans []*mspan // all spans out there

	// Proportional sweep
	//
	// These parameters represent a linear function from gcController.heapLive
	// to page sweep count. The proportional sweep system works to
	// stay in the black by keeping the current page sweep count
	// above this line at the current gcController.heapLive.
	//

github.com/aphistic/gomol-json,v1.1.0,h1:XJWwW8PxYOHf0f0FquuBWcgvZBvQ89nPxZsqQ9pfpro=,0e1ab66a46afe81c4662f8a49ca38042f0c6bc8645895336399adef1eedaff59
github.com/aphistic/sweet,v0.2.0,h1:I4z+fAUqvKfvZV/CHi5dV0QuwbmIvYYFDjG0Ss5QpAs=,02bebcef905b02cf7195137d9b20920367bb5f8c635a6e5a112b787596414f51
github.com/aphistic/sweet-junit,v0.0.0-20190314030539-8d7e248096c2,h1:qDCG/a4+mCcRqj+QHTc1RNncar6rpg0oGz9ynH4IRME=,6a3ab195b97bd1981f2ae87a172bc24ecfb44ffbd8d28428f97bfa46e66f559b

	traceEvGCBegin            // GC start [timestamp, seq, stack ID]
	traceEvGCEnd              // GC done [timestamp, seq]
	traceEvGCSweepActive      // GC sweep active [timestamp, P ID]
	traceEvGCSweepBegin       // GC sweep start [timestamp, stack ID]
	traceEvGCSweepEnd         // GC sweep done [timestamp, swept bytes, reclaimed bytes]
	traceEvGCMarkAssistActive // GC mark assist active [timestamp, goroutine ID]

		// nothing to do, silently ignore it.
		return false
	}

	// ensure that the span is swept, b/c sweeping accesses the specials list
	// w/o locks.
	mp := acquirem()
	span.ensureSwept()
	KeepAlive(ptr) // make sure ptr is still alive after span is swept

	objIndex := span.objIndex(uintptr(ptr))

	lock(&span.speciallock) // guard against concurrent calls of setPinned on same span

	EvGCBegin            // GC start [timestamp, seq, stack ID]
	EvGCEnd              // GC done [timestamp, seq]
	EvGCSweepActive      // GC sweep active [timestamp, P ID]
	EvGCSweepBegin       // GC sweep start [timestamp, stack ID]
	EvGCSweepEnd         // GC sweep done [timestamp, swept bytes, reclaimed bytes]
	EvGCMarkAssistActive // GC mark assist active [timestamp, goroutine ID]

			<arg>"mimetype"</arg>
			<arg>"application/vnd.ms-excel.sheet.2"</arg>
		</postConstruct>
		<postConstruct name="addCondition">
			<arg>"mimetype"</arg>
			<arg>"application/vnd.ms-excel.sheet.3"</arg>
		</postConstruct>
		<postConstruct name="addCondition">
			<arg>"mimetype"</arg>
			<arg>"application/vnd.ms-excel.sheet.4"</arg>
		</postConstruct>
		<postConstruct name="addCondition">

</tr>
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