110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
package sectorstorage
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import (
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"sync"
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"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
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)
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func (a *activeResources) withResources(id WorkerID, wr storiface.WorkerResources, r Resources, locker sync.Locker, cb func() error) error {
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for !a.canHandleRequest(r, id, "withResources", wr) {
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if a.cond == nil {
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a.cond = sync.NewCond(locker)
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}
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a.cond.Wait()
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}
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a.add(wr, r)
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err := cb()
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a.free(wr, r)
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if a.cond != nil {
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a.cond.Broadcast()
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}
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return err
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}
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func (a *activeResources) add(wr storiface.WorkerResources, r Resources) {
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if r.CanGPU {
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a.gpuUsed = true
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}
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a.cpuUse += r.Threads(wr.CPUs)
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a.memUsedMin += r.MinMemory
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a.memUsedMax += r.MaxMemory
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}
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func (a *activeResources) free(wr storiface.WorkerResources, r Resources) {
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if r.CanGPU {
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a.gpuUsed = false
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}
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a.cpuUse -= r.Threads(wr.CPUs)
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a.memUsedMin -= r.MinMemory
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a.memUsedMax -= r.MaxMemory
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}
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func (a *activeResources) canHandleRequest(needRes Resources, wid WorkerID, caller string, res storiface.WorkerResources) bool {
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// TODO: dedupe needRes.BaseMinMemory per task type (don't add if that task is already running)
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minNeedMem := res.MemReserved + a.memUsedMin + needRes.MinMemory + needRes.BaseMinMemory
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if minNeedMem > res.MemPhysical {
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log.Debugf("sched: not scheduling on worker %d for %s; not enough physical memory - need: %dM, have %dM", wid, caller, minNeedMem/mib, res.MemPhysical/mib)
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return false
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}
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maxNeedMem := res.MemReserved + a.memUsedMax + needRes.MaxMemory + needRes.BaseMinMemory
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if maxNeedMem > res.MemSwap+res.MemPhysical {
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log.Debugf("sched: not scheduling on worker %d for %s; not enough virtual memory - need: %dM, have %dM", wid, caller, maxNeedMem/mib, (res.MemSwap+res.MemPhysical)/mib)
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return false
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}
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if a.cpuUse+needRes.Threads(res.CPUs) > res.CPUs {
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log.Debugf("sched: not scheduling on worker %d for %s; not enough threads, need %d, %d in use, target %d", wid, caller, needRes.Threads(res.CPUs), a.cpuUse, res.CPUs)
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return false
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}
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if len(res.GPUs) > 0 && needRes.CanGPU {
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if a.gpuUsed {
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log.Debugf("sched: not scheduling on worker %d for %s; GPU in use", wid, caller)
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return false
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}
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}
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return true
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}
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func (a *activeResources) utilization(wr storiface.WorkerResources) float64 {
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var max float64
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cpu := float64(a.cpuUse) / float64(wr.CPUs)
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max = cpu
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memMin := float64(a.memUsedMin+wr.MemReserved) / float64(wr.MemPhysical)
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if memMin > max {
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max = memMin
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}
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memMax := float64(a.memUsedMax+wr.MemReserved) / float64(wr.MemPhysical+wr.MemSwap)
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if memMax > max {
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max = memMax
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}
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return max
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}
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func (wh *workerHandle) utilization() float64 {
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wh.lk.Lock()
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u := wh.active.utilization(wh.info.Resources)
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u += wh.preparing.utilization(wh.info.Resources)
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wh.lk.Unlock()
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wh.wndLk.Lock()
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for _, window := range wh.activeWindows {
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u += window.allocated.utilization(wh.info.Resources)
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}
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wh.wndLk.Unlock()
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return u
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}
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