Package providing a proc-like interface to monitor running Go processes
goinfo requires go-fuse to implement the proc-like file system. Due to this dependency, goinfo currently only works on Linux.
To install go-fuse you can simply run
$ go get github.com/hanwen/go-fuse
If you use goat, a Goatfile is included in the project already.
The project is not well documented right now, but now that I have an initial working version, I will be fleshing out the godocs soon. In the mean time:
To start simply import goinfo and start the info interface at a given mount point:
package main
import "github.com/betamike/goinfo"
func main() {
goinfo.Start("~/go/myapp")
defer goinfo.StopAll()
//App logic
}
This will provide the following interface at ~/go/myapp:
|- myapp
|- mem // memory statistics (all found in runtime.MemStats)
|- genmem // general memory stats "<MemStats.Alloc> <MemStats.TotalAlloc> <MemStats.Sys> <Memstats.Lookups> <MemStats.Mallocs> <MemStats.Frees>"
|- heap // heap memory stats "<MemStats.HeapAlloc> <MemStats.HeapSys> <MemStats.HeapIdle> <MemStats.HeapInuse> <MemStats.HeapReleased> <MemStats.HeapObjects>"
|- stack // stack memory stats "<MemStats.StackInuse> <MemStats.StackSys>"
|- mspan // mspan memory stats "<MemStats.MSpanInuse> <MemStats.MSpanSys>"
|- mcache // mcache memory stats "<MemStats.MCacheInuse> <MemStats.MCacheSys>"
|- buckethash // bucket hash info "<MemStats.BuckHashSys>"
|- gc // garbage collection stats "<MemStats.NextGC> <MemStats.LastGC> <MemStats.PauseTotalNs> <MemStats.NumGC> <MemStats.EnableGC> <MemStats.DebugGC>"
|- st
|- stacktrace // the current stacktrace of all goroutines (see runtime.Stack())
Check out the runtime package for more info.
Acessing this information is a simple as accessing a file:
$ cat ~/go/myapp/mem/genmem
817232 861568 271175600 65 541 146
This package is distributed under the MIT license. See the LICENSE file for more details.