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-rw-r--r--src/internal/profilerecord/profilerecord.go4
-rw-r--r--src/runtime/mheap.go2
-rw-r--r--src/runtime/mprof.go22
-rw-r--r--src/runtime/pprof/pprof.go6
-rw-r--r--src/runtime/pprof/protomem.go23
-rw-r--r--src/runtime/pprof/protomem_test.go6
6 files changed, 25 insertions, 38 deletions
diff --git a/src/internal/profilerecord/profilerecord.go b/src/internal/profilerecord/profilerecord.go
index a5efdced8f..95581867e1 100644
--- a/src/internal/profilerecord/profilerecord.go
+++ b/src/internal/profilerecord/profilerecord.go
@@ -13,12 +13,12 @@ type StackRecord struct {
}
type MemProfileRecord struct {
- AllocBytes, FreeBytes int64
+ ObjectSize int64
AllocObjects, FreeObjects int64
Stack []uintptr
}
-func (r *MemProfileRecord) InUseBytes() int64 { return r.AllocBytes - r.FreeBytes }
+func (r *MemProfileRecord) InUseBytes() int64 { return r.InUseObjects() * r.ObjectSize }
func (r *MemProfileRecord) InUseObjects() int64 { return r.AllocObjects - r.FreeObjects }
type BlockProfileRecord struct {
diff --git a/src/runtime/mheap.go b/src/runtime/mheap.go
index a7b361cff7..b85e111128 100644
--- a/src/runtime/mheap.go
+++ b/src/runtime/mheap.go
@@ -2790,7 +2790,7 @@ func freeSpecial(s *special, p unsafe.Pointer, size uintptr) {
unlock(&mheap_.speciallock)
case _KindSpecialProfile:
sp := (*specialprofile)(unsafe.Pointer(s))
- mProf_Free(sp.b, size)
+ mProf_Free(sp.b)
lock(&mheap_.speciallock)
mheap_.specialprofilealloc.free(unsafe.Pointer(sp))
unlock(&mheap_.speciallock)
diff --git a/src/runtime/mprof.go b/src/runtime/mprof.go
index a4cfef72fa..9ab02fbb30 100644
--- a/src/runtime/mprof.go
+++ b/src/runtime/mprof.go
@@ -146,16 +146,13 @@ type memRecord struct {
// memRecordCycle
type memRecordCycle struct {
- allocs, frees uintptr
- alloc_bytes, free_bytes uintptr
+ allocs, frees uintptr
}
// add accumulates b into a. It does not zero b.
func (a *memRecordCycle) add(b *memRecordCycle) {
a.allocs += b.allocs
a.frees += b.frees
- a.alloc_bytes += b.alloc_bytes
- a.free_bytes += b.free_bytes
}
// A blockRecord is the bucket data for a bucket of type blockProfile,
@@ -453,7 +450,6 @@ func mProf_Malloc(mp *m, p unsafe.Pointer, size uintptr) {
lock(&profMemFutureLock[index])
mpc.allocs++
- mpc.alloc_bytes += size
unlock(&profMemFutureLock[index])
// Setprofilebucket locks a bunch of other mutexes, so we call it outside of
@@ -466,7 +462,7 @@ func mProf_Malloc(mp *m, p unsafe.Pointer, size uintptr) {
}
// Called when freeing a profiled block.
-func mProf_Free(b *bucket, size uintptr) {
+func mProf_Free(b *bucket) {
index := (mProfCycle.read() + 1) % uint32(len(memRecord{}.future))
mp := b.mp()
@@ -474,7 +470,6 @@ func mProf_Free(b *bucket, size uintptr) {
lock(&profMemFutureLock[index])
mpc.frees++
- mpc.free_bytes += size
unlock(&profMemFutureLock[index])
}
@@ -960,7 +955,7 @@ func memProfileInternal(size int, inuseZero bool, copyFn func(profilerecord.MemP
head := (*bucket)(mbuckets.Load())
for b := head; b != nil; b = b.allnext {
mp := b.mp()
- if inuseZero || mp.active.alloc_bytes != mp.active.free_bytes {
+ if inuseZero || mp.active.allocs != mp.active.frees {
n++
}
if mp.active.allocs != 0 || mp.active.frees != 0 {
@@ -981,7 +976,7 @@ func memProfileInternal(size int, inuseZero bool, copyFn func(profilerecord.MemP
mp.future[c] = memRecordCycle{}
unlock(&profMemFutureLock[c])
}
- if inuseZero || mp.active.alloc_bytes != mp.active.free_bytes {
+ if inuseZero || mp.active.allocs != mp.active.frees {
n++
}
}
@@ -990,10 +985,9 @@ func memProfileInternal(size int, inuseZero bool, copyFn func(profilerecord.MemP
ok = true
for b := head; b != nil; b = b.allnext {
mp := b.mp()
- if inuseZero || mp.active.alloc_bytes != mp.active.free_bytes {
+ if inuseZero || mp.active.allocs != mp.active.frees {
r := profilerecord.MemProfileRecord{
- AllocBytes: int64(mp.active.alloc_bytes),
- FreeBytes: int64(mp.active.free_bytes),
+ ObjectSize: int64(b.size),
AllocObjects: int64(mp.active.allocs),
FreeObjects: int64(mp.active.frees),
Stack: b.stk(),
@@ -1007,8 +1001,8 @@ func memProfileInternal(size int, inuseZero bool, copyFn func(profilerecord.MemP
}
func copyMemProfileRecord(dst *MemProfileRecord, src profilerecord.MemProfileRecord) {
- dst.AllocBytes = src.AllocBytes
- dst.FreeBytes = src.FreeBytes
+ dst.AllocBytes = src.AllocObjects * src.ObjectSize
+ dst.FreeBytes = src.FreeObjects * src.ObjectSize
dst.AllocObjects = src.AllocObjects
dst.FreeObjects = src.FreeObjects
if raceenabled {
diff --git a/src/runtime/pprof/pprof.go b/src/runtime/pprof/pprof.go
index d560eeade1..6708d2dfa3 100644
--- a/src/runtime/pprof/pprof.go
+++ b/src/runtime/pprof/pprof.go
@@ -674,9 +674,9 @@ func writeHeapInternal(w io.Writer, debug int, defaultSampleType string) error {
var total runtime.MemProfileRecord
for i := range p {
r := &p[i]
- total.AllocBytes += r.AllocBytes
+ total.AllocBytes += r.AllocObjects * r.ObjectSize
total.AllocObjects += r.AllocObjects
- total.FreeBytes += r.FreeBytes
+ total.FreeBytes += r.FreeObjects * r.ObjectSize
total.FreeObjects += r.FreeObjects
}
@@ -706,7 +706,7 @@ func writeHeapInternal(w io.Writer, debug int, defaultSampleType string) error {
r := &p[i]
fmt.Fprintf(w, "%d: %d [%d: %d] @",
r.InUseObjects(), r.InUseBytes(),
- r.AllocObjects, r.AllocBytes)
+ r.AllocObjects, r.AllocObjects*r.ObjectSize)
for _, pc := range r.Stack {
fmt.Fprintf(w, " %#x", pc)
}
diff --git a/src/runtime/pprof/protomem.go b/src/runtime/pprof/protomem.go
index e0d3746e36..02847c2dda 100644
--- a/src/runtime/pprof/protomem.go
+++ b/src/runtime/pprof/protomem.go
@@ -51,16 +51,10 @@ func writeHeapProto(w io.Writer, p []profilerecord.MemProfileRecord, rate int64,
hideRuntime = false // try again, and show all frames next time.
}
- values[0], values[1] = scaleHeapSample(r.AllocObjects, r.AllocBytes, rate)
- values[2], values[3] = scaleHeapSample(r.InUseObjects(), r.InUseBytes(), rate)
- var blockSize int64
- if r.AllocObjects > 0 {
- blockSize = r.AllocBytes / r.AllocObjects
- }
+ values[0], values[1] = scaleHeapSample(r.AllocObjects, r.ObjectSize, rate)
+ values[2], values[3] = scaleHeapSample(r.InUseObjects(), r.ObjectSize, rate)
b.pbSample(values, locs, func() {
- if blockSize != 0 {
- b.pbLabel(tagSample_Label, "bytes", "", blockSize)
- }
+ b.pbLabel(tagSample_Label, "bytes", "", r.ObjectSize)
})
}
return b.build()
@@ -75,19 +69,18 @@ func writeHeapProto(w io.Writer, p []profilerecord.MemProfileRecord, rate int64,
// which samples to collect, based on the desired average collection
// rate R. The probability of a sample of size S to appear in that
// profile is 1-exp(-S/R).
-func scaleHeapSample(count, size, rate int64) (int64, int64) {
- if count == 0 || size == 0 {
+func scaleHeapSample(count, avgSize, rate int64) (int64, int64) {
+ if count == 0 || avgSize == 0 {
return 0, 0
}
if rate <= 1 {
// if rate==1 all samples were collected so no adjustment is needed.
// if rate<1 treat as unknown and skip scaling.
- return count, size
+ return count, count * avgSize
}
- avgSize := float64(size) / float64(count)
- scale := 1 / (1 - math.Exp(-avgSize/float64(rate)))
+ scale := 1 / (1 - math.Exp(-float64(avgSize)/float64(rate)))
- return int64(float64(count) * scale), int64(float64(size) * scale)
+ return int64(float64(count) * scale), int64(float64(count*avgSize) * scale)
}
diff --git a/src/runtime/pprof/protomem_test.go b/src/runtime/pprof/protomem_test.go
index 6f3231d42a..6b2254298e 100644
--- a/src/runtime/pprof/protomem_test.go
+++ b/src/runtime/pprof/protomem_test.go
@@ -27,9 +27,9 @@ func TestConvertMemProfile(t *testing.T) {
a1, a2 := uintptr(addr1)+1, uintptr(addr2)+1
rate := int64(512 * 1024)
rec := []profilerecord.MemProfileRecord{
- {AllocBytes: 4096, FreeBytes: 1024, AllocObjects: 4, FreeObjects: 1, Stack: []uintptr{a1, a2}},
- {AllocBytes: 512 * 1024, FreeBytes: 0, AllocObjects: 1, FreeObjects: 0, Stack: []uintptr{a2 + 1, a2 + 2}},
- {AllocBytes: 512 * 1024, FreeBytes: 512 * 1024, AllocObjects: 1, FreeObjects: 1, Stack: []uintptr{a1 + 1, a1 + 2, a2 + 3}},
+ {ObjectSize: 1024, AllocObjects: 4, FreeObjects: 1, Stack: []uintptr{a1, a2}},
+ {ObjectSize: 512 * 1024, AllocObjects: 1, FreeObjects: 0, Stack: []uintptr{a2 + 1, a2 + 2}},
+ {ObjectSize: 512 * 1024, AllocObjects: 1, FreeObjects: 1, Stack: []uintptr{a1 + 1, a1 + 2, a2 + 3}},
}
periodType := &profile.ValueType{Type: "space", Unit: "bytes"}
generated by cgit v1.3 (git 2.53.0) at 2026-04-15 10:33:44 +0000