mirror of
https://github.com/luxfi/node.git
synced 2026-10-30 15:24:05 +00:00
zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
|
|
// See the file LICENSE for licensing terms.
|
|
|
|
package profiler
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"golang.org/x/sync/errgroup"
|
|
|
|
"github.com/luxfi/node/utils/filesystem"
|
|
)
|
|
|
|
// Config that is used to describe the options of the continuous profiler.
|
|
type Config struct {
|
|
Dir string `json:"dir"`
|
|
Enabled bool `json:"enabled"`
|
|
Freq time.Duration `json:"freq"`
|
|
MaxNumFiles int `json:"maxNumFiles"`
|
|
}
|
|
|
|
// ContinuousProfiler periodically captures CPU, memory, and lock profiles
|
|
type ContinuousProfiler interface {
|
|
Dispatch() error
|
|
Shutdown()
|
|
}
|
|
|
|
type continuousProfiler struct {
|
|
profiler *profiler
|
|
freq time.Duration
|
|
maxNumFiles int
|
|
|
|
// Dispatch returns when closer is closed
|
|
closer chan struct{}
|
|
}
|
|
|
|
func NewContinuous(dir string, freq time.Duration, maxNumFiles int) ContinuousProfiler {
|
|
return &continuousProfiler{
|
|
profiler: newProfiler(dir),
|
|
freq: freq,
|
|
maxNumFiles: maxNumFiles,
|
|
closer: make(chan struct{}),
|
|
}
|
|
}
|
|
|
|
func (p *continuousProfiler) Dispatch() error {
|
|
t := time.NewTicker(p.freq)
|
|
defer t.Stop()
|
|
|
|
for {
|
|
if err := p.start(); err != nil {
|
|
return err
|
|
}
|
|
|
|
select {
|
|
case <-p.closer:
|
|
return p.stop()
|
|
case <-t.C:
|
|
if err := p.stop(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if err := p.rotate(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
func (p *continuousProfiler) start() error {
|
|
return p.profiler.StartCPUProfiler()
|
|
}
|
|
|
|
func (p *continuousProfiler) stop() error {
|
|
g := errgroup.Group{}
|
|
g.Go(p.profiler.StopCPUProfiler)
|
|
g.Go(p.profiler.MemoryProfile)
|
|
g.Go(p.profiler.LockProfile)
|
|
return g.Wait()
|
|
}
|
|
|
|
func (p *continuousProfiler) rotate() error {
|
|
g := errgroup.Group{}
|
|
g.Go(func() error {
|
|
return rotate(p.profiler.cpuProfileName, p.maxNumFiles)
|
|
})
|
|
g.Go(func() error {
|
|
return rotate(p.profiler.memProfileName, p.maxNumFiles)
|
|
})
|
|
g.Go(func() error {
|
|
return rotate(p.profiler.lockProfileName, p.maxNumFiles)
|
|
})
|
|
return g.Wait()
|
|
}
|
|
|
|
func (p *continuousProfiler) Shutdown() {
|
|
close(p.closer)
|
|
}
|
|
|
|
// Renames the file at [name] to [name].1, the file at [name].1 to [name].2, etc.
|
|
// Assumes that there is a file at [name].
|
|
func rotate(name string, maxNumFiles int) error {
|
|
for i := maxNumFiles - 1; i > 0; i-- {
|
|
sourceFilename := fmt.Sprintf("%s.%d", name, i)
|
|
destFilename := fmt.Sprintf("%s.%d", name, i+1)
|
|
if _, err := filesystem.RenameIfExists(sourceFilename, destFilename); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
destFilename := name + ".1"
|
|
_, err := filesystem.RenameIfExists(name, destFilename)
|
|
return err
|
|
}
|