Hi,
While examining the stack trace from a crash where the process seems to
have become extremely slow, I see a lot of these goroutines:
goroutine 66 [mark worker (idle)]:
runtime.gopark(0x2cf6cf0, 0xc820d10000, 0x29268b0, 0x12, 0x14, 0x0)
/usr/local/go/src/runtime/proc.go:185 +0x163 fp=0xc82006ff50
sp=0xc82006ff28
runtime.gcBgMarkWorker(0xc820016000)
/usr/local/go/src/runtime/mgc.go:1289 +0xf7 fp=0xc82006ffb8
sp=0xc82006ff50
runtime.goexit()
/usr/local/go/src/runtime/asm_amd64.s:1696 +0x1 fp=0xc82006ffc0
sp=0xc82006ffb8
created by runtime.gcBgMarkStartWorkers
/usr/local/go/src/runtime/mgc.go:1239 +0x93
There are *65* such goroutines according to stack trace. Can someone help
me understand what could be going on ?
1. Why does go need so many routines gcBgMarkWorkers ?
2. Does it indicate that the process is thrashing memory somehow ? Does it
indicate to any specific symtoms ?
3. Can it make the process super slow ?
Thanks for the help !
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