watching

package
v0.0.0-...-4f74120 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Apr 25, 2024 License: Apache-2.0 Imports: 22 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	LogLevelInfo = iota
	LogLevelDebug
)
View Source 
const (
	// TrimResultTopN trimResult return only reserve the top n.
	TrimResultTopN = 10

	// NotSupportTypeMaxConfig means this profile type is
	// not support control dump profile by max parameter.
	NotSupportTypeMaxConfig = 0

	// UniformLogFormat is the format of uniform logging.
	UniformLogFormat = "[Watching] %v %v, config_min : %v, config_diff : %v, config_abs : %v, config_max : %v, previous : %v, current: %v"
)

Variables

This section is empty.

Functions

func WithBinaryDump 

func WithBinaryDump() options.Option

WithBinaryDump set dump mode to binary.

func WithCGroup 

func WithCGroup(useCGroup bool) options.Option

WithCGroup set Watching use cgroup or not.

func WithCPUCore 

func WithCPUCore(cpuCore float64) options.Option

WithCPUCore overwrite the system level CPU core number when it > 0. it's not a good idea to modify it on fly since it affects the CPU percent caculation.

func WithCPUDump 

func WithCPUDump(min int, diff int, abs int) options.Option

WithCPUDump set the cpu dump options.

func WithCPUMax 

func WithCPUMax(max int) options.Option

WithCPUMax : set the CPUMaxPercent parameter as max

func WithCollectInterval 

func WithCollectInterval(interval string) options.Option

WithCollectInterval : interval must be valid time duration string, eg. "ns", "us" (or "µs"), "ms", "s", "m", "h".

func WithCoolDown 

func WithCoolDown(coolDown string) options.Option

WithCoolDown : coolDown must be valid time duration string, eg. "ns", "us" (or "µs"), "ms", "s", "m", "h".

func WithDumpPath 

func WithDumpPath(dumpPath string, loginfo ...string) options.Option

WithDumpPath set the dump path for Watching.

func WithFullStack 

func WithFullStack(isFull bool) options.Option

WithFullStack set to dump full stack or top 10 stack, when dump in text mode.

func WithGCHeapDump 

func WithGCHeapDump(min int, diff int, abs int) options.Option

WithGCHeapDump set the GC heap dump options.

func WithGoProcAsCPUCore 

func WithGoProcAsCPUCore(enabled bool) options.Option

WithGoProcAsCPUCore set Watching use cgroup or not.

func WithGoroutineDump 

func WithGoroutineDump(min int, diff int, abs int, max int) options.Option

WithGoroutineDump set the goroutine dump options.

func WithLoggerLevel 

func WithLoggerLevel(level int) options.Option

WithLoggerLevel set logger level

func WithLoggerSplit 

func WithLoggerSplit(enable bool, shardLoggerSize string) options.Option

WithLoggerSplit set the split log options. eg. "b/B", "k/K" "kb/Kb" "mb/Mb", "gb/Gb" "tb/Tb" "pb/Pb".

func WithMemDump 

func WithMemDump(min int, diff int, abs int) options.Option

WithMemDump set the memory dump options.

func WithMemoryLimit 

func WithMemoryLimit(limit uint64) options.Option

WithMemoryLimit overwrite the system level memory limit when it > 0.

func WithProfileReporter 

func WithProfileReporter(r ProfileReporter) options.Option

WithProfileReporter will enable reporter reopens profile reporter through WithProfileReporter(h.opts.rptOpts.reporter)

func WithShrinkThread 

func WithShrinkThread(enable bool, threshold int, delay time.Duration) options.Option

WithShrinkThread enable/disable shrink thread when the thread number exceed the max threshold.

func WithTextDump 

func WithTextDump() options.Option

WithTextDump set dump mode to text.

func WithThreadDump 

func WithThreadDump(min, diff, abs int) options.Option

WithThreadDump set the thread dump options.

Types

type DumpConfigs 

type DumpConfigs struct {
	// full path to put the profile files, default /tmp
	DumpPath string
	// default dump to binary profile, set to true if you want a text profile
	DumpProfileType dumpProfileType
	// only dump top 10 if set to false, otherwise dump all, only effective when in_text = true
	DumpFullStack bool
}

DumpConfigs contains configuration about dump file.

type HttpReporter 

type HttpReporter struct {
	// contains filtered or unexported fields
}

func (*HttpReporter) Report 

func (r *HttpReporter) Report(ptype string, buf []byte, reason string, eventID string) error

type ProfileReporter 

type ProfileReporter interface {
	Report(pType string, buf []byte, reason string, eventID string) error
}

func NewReporter 

func NewReporter(token string, url string) ProfileReporter

type ReporterConfigs 

type ReporterConfigs struct {
	// contains filtered or unexported fields
}

type Response 

type Response struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

type ShrinkThrConfigs 

type ShrinkThrConfigs struct {
	// shrink the thread number when it exceeds the max threshold that specified in Threshold
	Enable    bool
	Threshold int
	Delay     time.Duration // start to shrink thread after the delay time.
}

ShrinkThrConfigs contains the configuration about shrink thread

type Watching 

type Watching struct {

	// lock Protect the following
	sync.Mutex
	// contains filtered or unexported fields
}

func NewWatching 

func NewWatching(opts ...options.Option) *Watching

func (*Watching) DisableCPUDump 

func (w *Watching) DisableCPUDump() *Watching

DisableCPUDump disables the CPU dump.

func (*Watching) DisableGCHeapDump 

func (w *Watching) DisableGCHeapDump() *Watching

DisableGCHeapDump disables the GC heap dump.

func (*Watching) DisableGoroutineDump 

func (w *Watching) DisableGoroutineDump() *Watching

DisableGoroutineDump disables the goroutine dump.

func (*Watching) DisableMemDump 

func (w *Watching) DisableMemDump() *Watching

DisableMemDump disables the mem dump.

func (*Watching) DisableProfileReporter 

func (w *Watching) DisableProfileReporter()

func (*Watching) DisableThreadDump 

func (w *Watching) DisableThreadDump() *Watching

DisableThreadDump disables the goroutine dump.

func (*Watching) EnableCPUDump 

func (w *Watching) EnableCPUDump() *Watching

EnableCPUDump enables the CPU dump.

func (*Watching) EnableDump 

func (w *Watching) EnableDump(curCPU int) (err error)

func (*Watching) EnableGCHeapDump 

func (w *Watching) EnableGCHeapDump() *Watching

EnableGCHeapDump enables the GC heap dump.

func (*Watching) EnableGoroutineDump 

func (w *Watching) EnableGoroutineDump() *Watching

EnableGoroutineDump enables the goroutine dump.

func (*Watching) EnableMemDump 

func (w *Watching) EnableMemDump() *Watching

EnableMemDump enables the mem dump.

func (*Watching) EnableProfileReporter 

func (w *Watching) EnableProfileReporter()

func (*Watching) EnableThreadDump 

func (w *Watching) EnableThreadDump() *Watching

EnableThreadDump enables the goroutine dump.

func (*Watching) Start 

func (w *Watching) Start()

Start starts the dump loop of Watching.

func (*Watching) Stop 

func (w *Watching) Stop()

Stop the dump loop.

Source Files

View all Source files

Directories

Path Synopsis
example
1gbslice
alloc
channelblock
cpu_explode
deadlock
deadloop
gcheap
run_in_docker
slowlyleak
thread_trigger

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