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Diffstat (limited to 'src/cmd')
-rw-r--r--src/cmd/trace/trace.go16
1 files changed, 12 insertions, 4 deletions
diff --git a/src/cmd/trace/trace.go b/src/cmd/trace/trace.go
index 72cab90de0..7db2188861 100644
--- a/src/cmd/trace/trace.go
+++ b/src/cmd/trace/trace.go
@@ -481,7 +481,13 @@ func generateTrace(params *traceParams) (ViewerData, error) {
}
ctx.emitSlice(&fakeMarkStart, text)
case trace.EvGCSweepStart:
- ctx.emitSlice(ev, "SWEEP")
+ slice := ctx.emitSlice(ev, "SWEEP")
+ if done := ev.Link; done != nil && done.Args[0] != 0 {
+ slice.Arg = struct {
+ Swept uint64 `json:"Swept bytes"`
+ Reclaimed uint64 `json:"Reclaimed bytes"`
+ }{done.Args[0], done.Args[1]}
+ }
case trace.EvGoStart, trace.EvGoStartLabel:
info := getGInfo(ev.G)
if ev.Type == trace.EvGoStartLabel {
@@ -574,8 +580,8 @@ func (ctx *traceContext) proc(ev *trace.Event) uint64 {
}
}
-func (ctx *traceContext) emitSlice(ev *trace.Event, name string) {
- ctx.emit(&ViewerEvent{
+func (ctx *traceContext) emitSlice(ev *trace.Event, name string) *ViewerEvent {
+ sl := &ViewerEvent{
Name: name,
Phase: "X",
Time: ctx.time(ev),
@@ -583,7 +589,9 @@ func (ctx *traceContext) emitSlice(ev *trace.Event, name string) {
Tid: ctx.proc(ev),
Stack: ctx.stack(ev.Stk),
EndStack: ctx.stack(ev.Link.Stk),
- })
+ }
+ ctx.emit(sl)
+ return sl
}
type heapCountersArg struct {