mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-05 21:39:19 +08:00
3c80083f51
add sparse float vector support to different milvus components, including proxy, data node to receive and write sparse float vectors to binlog, query node to handle search requests, index node to build index for sparse float column, etc. https://github.com/milvus-io/milvus/issues/29419 --------- Signed-off-by: Buqian Zheng <zhengbuqian@gmail.com>
149 lines
4.0 KiB
Go
149 lines
4.0 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package gc
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import (
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"math"
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"os"
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"runtime"
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"strconv"
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"sync"
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"time"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/hardware"
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)
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var (
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f *finalizer
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once sync.Once
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defaultGOGC int
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previousGOGC uint32
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minGOGC uint32
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maxGOGC uint32
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memoryThreshold uint64
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action func(uint32)
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)
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type finalizer struct {
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ref *finalizerRef
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}
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type finalizerRef struct {
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parent *finalizer
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}
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// just a finializer to handle go gc
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func finalizerHandler(f *finalizerRef) {
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optimizeGOGC()
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runtime.SetFinalizer(f, finalizerHandler)
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}
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func optimizeGOGC() {
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var m runtime.MemStats
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// This will trigger a STW so be careful
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runtime.ReadMemStats(&m)
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heapuse := m.HeapInuse
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totaluse := hardware.GetUsedMemoryCount()
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var newGoGC uint32
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if totaluse > memoryThreshold {
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newGoGC = minGOGC
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} else {
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heapTarget := memoryThreshold - (totaluse - heapuse)
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newGoGC = uint32(math.Floor(float64(heapTarget-heapuse) / float64(heapuse) * 100))
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if newGoGC < minGOGC {
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newGoGC = minGOGC
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} else if newGoGC > maxGOGC {
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newGoGC = maxGOGC
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}
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}
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action(newGoGC)
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toMB := func(mem uint64) uint64 {
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return mem / 1024 / 1024
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}
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// currently we assume 20 ms as long gc pause
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if (m.PauseNs[(m.NumGC+255)%256] / uint64(time.Millisecond)) < 20 {
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log.Debug("GC Tune done", zap.Uint32("previous GOGC", previousGOGC),
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zap.Uint64("heapuse ", toMB(heapuse)),
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zap.Uint64("total memory", toMB(totaluse)),
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zap.Uint64("next GC", toMB(m.NextGC)),
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zap.Uint32("new GOGC", newGoGC),
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zap.Duration("gc-pause", time.Duration(m.PauseNs[(m.NumGC+255)%256])),
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zap.Uint64("gc-pause-end", m.PauseEnd[(m.NumGC+255)%256]),
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)
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} else {
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log.Warn("GC Tune done, and the gc is slow", zap.Uint32("previous GOGC", previousGOGC),
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zap.Uint64("heapuse ", toMB(heapuse)),
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zap.Uint64("total memory", toMB(totaluse)),
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zap.Uint64("next GC", toMB(m.NextGC)),
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zap.Uint32("new GOGC", newGoGC),
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zap.Duration("gc-pause", time.Duration(m.PauseNs[(m.NumGC+255)%256])),
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zap.Uint64("gc-pause-end", m.PauseEnd[(m.NumGC+255)%256]),
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)
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}
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previousGOGC = newGoGC
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}
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func NewTuner(targetPercent float64, minimumGOGCConfig uint32, maximumGOGCConfig uint32, fn func(uint322 uint32)) *finalizer {
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once.Do(func() {
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// initiate GOGC parameter
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if envGOGC := os.Getenv("GOGC"); envGOGC != "" {
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n, err := strconv.Atoi(envGOGC)
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if err == nil {
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defaultGOGC = n
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}
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} else {
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// the default value of GOGC is 100 for now
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defaultGOGC = 100
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}
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action = fn
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minGOGC = minimumGOGCConfig
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maxGOGC = maximumGOGCConfig
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previousGOGC = uint32(defaultGOGC)
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totalMemory := hardware.GetMemoryCount()
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if totalMemory == 0 {
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log.Warn("Failed to get memory count, disable gc auto tune", zap.Int("Initial GoGC", defaultGOGC))
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// noop
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action = func(uint32) {}
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return
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}
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memoryThreshold = uint64(float64(totalMemory) * targetPercent)
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log.Info("GC Helper initialized.", zap.Uint32("Initial GoGC", previousGOGC),
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zap.Uint32("minimumGOGC", minGOGC),
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zap.Uint32("maximumGOGC", maxGOGC),
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zap.Uint64("memoryThreshold", memoryThreshold))
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f := &finalizer{}
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f.ref = &finalizerRef{parent: f}
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runtime.SetFinalizer(f.ref, finalizerHandler)
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f.ref = nil
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})
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return f
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}
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