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les: freeze peers based of relative buffer status

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This commit is contained in:
Zsolt Felfoldi 2019-05-03 19:31:28 +02:00
parent f39c7a5d12
commit 94e1d9c739
1 changed files with 11 additions and 11 deletions
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22
les/servingqueue.go
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@ -196,10 +196,10 @@ func (sq *servingQueue) threadController() {
type ( type (
// peerTasks lists the tasks received from a given peer when selecting peers to freeze // peerTasks lists the tasks received from a given peer when selecting peers to freeze
peerTasks struct { peerTasks struct {
peer *peer peer *peer
list []*servingTask list []*servingTask
sumTime uint64 sumTime uint64
worstPriority int64 priority float64
} }
// peerList is a sortable list of peerTasks // peerList is a sortable list of peerTasks
peerList []*peerTasks peerList []*peerTasks
@ -210,7 +210,7 @@ func (l peerList) Len() int {
} }
func (l peerList) Less(i, j int) bool { func (l peerList) Less(i, j int) bool {
return (l[i].worstPriority - l[j].worstPriority) < 0 return l[i].priority < l[j].priority
} }
func (l peerList) Swap(i, j int) { func (l peerList) Swap(i, j int) {
@ -230,16 +230,16 @@ func (sq *servingQueue) freezePeers() {
task := sq.queue.PopItem().(*servingTask) task := sq.queue.PopItem().(*servingTask)
tasks := peerMap[task.peer] tasks := peerMap[task.peer]
if tasks == nil { if tasks == nil {
bufValue, bufLimit := task.peer.fcClient.BufferStatus()
if bufLimit < 1 {
bufLimit = 1
}
tasks = &peerTasks{ tasks = &peerTasks{
peer: task.peer, peer: task.peer,
worstPriority: task.priority, priority: float64(bufValue) / float64(bufLimit), // lower value comes first
} }
peerMap[task.peer] = tasks peerMap[task.peer] = tasks
peerList = append(peerList, tasks) peerList = append(peerList, tasks)
} else {
if tasks.worstPriority-task.priority > 0 {
tasks.worstPriority = task.priority
}
} }
tasks.list = append(tasks.list, task) tasks.list = append(tasks.list, task)
tasks.sumTime += task.expTime tasks.sumTime += task.expTime