writeList[0:0]会造成内存泄漏吗

[crossci]

func (self *tcpSession) sendLoop() {
	var writeList []interface{}
	for {
		writeList = writeList[0:0]
		exit := self.sendQueue.Pick(&writeList)

如果writeList 里面的量很大 这样会导致一部分内地一直没有释放吗？

[crossci]

heap profile: 82: 9868976 [40409: 40811376] @ heap/1048576
1: 3719168 [1: 3719168] @ 0x8509e8 0x8516bc 0x460391
#	0x8509e7	github.com/davyxu/cellnet.(*Pipe).Pick+0x1a7			/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/pipe.go:48
#	0x8516bb	github.com/davyxu/cellnet.(*eventQueue).StartLoop.func1+0x7b	/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:87

1: 3719168 [1: 3719168] @ 0x8507c6 0x850b89 0x850f60 0x850f00 0x85b9ba 0x859306 0x922fb4 0x460391
#	0x8507c5	github.com/davyxu/cellnet.(*Pipe).Add+0xf5				/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/pipe.go:17
#	0x850b88	github.com/davyxu/cellnet.(*eventQueue).Post+0x48			/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:57
#	0x850f5f	github.com/davyxu/cellnet.QueuedCall+0x3f				/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:155
#	0x850eff	github.com/davyxu/cellnet.SessionQueuedCall+0x7f			/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:147
#	0x85b9b9	github.com/davyxu/cellnet/proc.NewQueuedEventCallback.func1+0xc9	/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/proc/procbundle.go:25
#	0x859305	github.com/davyxu/cellnet/peer.(*CoreProcBundle).ProcEvent+0x65		/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/peer/procbundle.go:66
#	0x922fb3	github.com/davyxu/cellnet/peer/tcp.(*tcpSession).recvLoop+0x93		/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/peer/tcp/session.go:151

1: 1212416 [1: 1212416] @ 0x8507c6 0x922dd1 0x85c3c6 0x934b46 0x936279 0x936246 0x85b8d7 0x850f74 0x850f00 0x85b9ba 0x859306 0x91c794 0x460391
#	0x8507c5	github.com/davyxu/cellnet.(*Pipe).Add+0xf5				/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/pipe.go:17
#	0x922dd0	github.com/davyxu/cellnet/peer/tcp.(*tcpSession).Send+0x60		/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/peer/tcp/session.go:91
#	0x85c3c5	GATE/src/game.(*Game).Send+0xc5						/app/src/game/game.go:56
#	0x934b45	GATE/src/server.(*ServerManager).onClientPacket+0x505			/app/src/server/servermanager.go:129
#	0x936278	GATE/src/server.(*Server).onClientPacket+0x98				/app/src/server/server.go:40
#	0x936245	GATE/src/server.(*Server).Init.func1+0x65				/app/src/server/server.go:28
#	0x85b8d6	github.com/davyxu/cellnet/proc.NewQueuedEventCallback.func1.1+0x36	/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/proc/procbundle.go:27
#	0x850f73	github.com/davyxu/cellnet.QueuedCall+0x53				/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:153
#	0x850eff	github.com/davyxu/cellnet.SessionQueuedCall+0x7f			/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/queue.go:147
#	0x85b9b9	github.com/davyxu/cellnet/proc.NewQueuedEventCallback.func1+0xc9	/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/proc/procbundle.go:25
#	0x859305	github.com/davyxu/cellnet/peer.(*CoreProcBundle).ProcEvent+0x65		/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/peer/procbundle.go:66
#	0x91c793	GATE/src/mytcp.(*tcpSession).recvLoop+0x93				/app/src/mytcp/session.go:152

1: 1212416 [1: 1212416] @ 0x8509e8 0x92342a 0x460391
#	0x8509e7	github.com/davyxu/cellnet.(*Pipe).Pick+0x1a7			/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/pipe.go:48
#	0x923429	github.com/davyxu/cellnet/peer/tcp.(*tcpSession).sendLoop+0x59	/go/pkg/mod/github.com/davyxu/cellnet@v4.1.0+incompatible/peer/tcp/session.go:165

pprof显示这里有很大内存，请大神指点一下 谢谢

[davyxu]

你放到队列里的东西大, 当然显示内存大了.
writeList[0:0]的意思就是保留元素空间, 重置指针
如果泄露, 那每一个元素都会泄露

[davyxu]

已经用过的内存不重用, 有新数据就新申请内存?. 你是有多少钱买内存啊

[davyxu]

买本go的书看下吧, issue只提bug, 不教学