mirror of
https://github.com/featurebasedb/featurebase.git
synced 2026-09-05 16:15:56 +00:00
150c8a5b06
- introduce Query Context (Qcx) for managing database-per-shard. - replaces the MultiTx, so mtx.go is retired and removed. - introduces the HolderConfig struct and all Holders now have a path from birth. - rbf speedups on bitwise writes - badgerdb is removed due to unresolvable write conflicts. fixes #703 #676
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
// Copyright 2020 Pilosa Corp.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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 pilosa
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import (
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"fmt"
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"os"
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"runtime"
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"runtime/pprof"
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"time"
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_ "net/http/pprof" // Imported for its side-effect of registering pprof endpoints with the server.
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)
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func CPUProfileForDur(dur time.Duration, outpath string) {
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// per-query pprof output:
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txsrc := os.Getenv("PILOSA_TXSRC")
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if txsrc == "" {
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txsrc = "roaring"
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}
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path := outpath + "." + txsrc
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f, err := os.Create(path)
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panicOn(err)
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if dur == 0 {
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dur = time.Minute
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}
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AlwaysPrintf("starting cpu profile for dur '%v', output to '%v'", dur, path)
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_ = pprof.StartCPUProfile(f)
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go func() {
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<-time.After(dur)
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pprof.StopCPUProfile()
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f.Close()
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AlwaysPrintf("stopping cpu profile after dur '%v', output: '%v'", dur, path)
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}()
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}
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func MemProfileForDur(dur time.Duration, outpath string) {
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// per-query pprof output:
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txsrc := os.Getenv("PILOSA_TXSRC")
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if txsrc == "" {
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txsrc = "roaring"
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}
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path := outpath + "." + txsrc
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f, err := os.Create(path)
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panicOn(err)
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if dur == 0 {
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dur = time.Minute
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}
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AlwaysPrintf("will write memory profile after dur '%v', output to '%v'", dur, path)
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go func() {
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<-time.After(dur)
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runtime.GC() // get up-to-date statistics
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if err := pprof.WriteHeapProfile(f); err != nil {
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panic(fmt.Sprintf("could not write memory profile: %v", err))
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}
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f.Close()
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AlwaysPrintf("wrote memory profile after dur '%v', output: '%v'", dur, path)
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}()
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}
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