Thanks. Now i'm able to get things working. However i'm not getting proper
"threadcreate" dump and block dump. I'm taking it by using
"http://127.0.0.1:6060/debug/pprof/threadcreate"; --> which saying below. I
have totally 23 threads and wants to see the reason, why they have been
created.
Type: threadcreate
Time: Nov 15, 2019 at 5:43pm (IST)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) top
Showing nodes accounting for 1, 4.76% of 21 total
flat flat% sum%cum cum%
1 4.76% 4.76% 1 4.76% runtime.allocm
0 0% 4.76% 1 4.76% runtime.main
0 0% 4.76% 1 4.76% runtime.newm
0 0% 4.76% 1 4.76% runtime.startTemplateThread
Also, block dump show below. Any link on how to interprete it?
Type: delay
Time: Nov 15, 2019 at 5:37pm (IST)
Entering interactive mode (type "help" for commands, "o" for options)
(pprof) top
Showing nodes accounting for 456.51ms, 100% of 456.63ms total
Dropped 82 nodes (cum <= 2.28ms)
flat flat% sum%cum cum%
456.51ms 100% 100% 456.51ms 100% runtime.selectgo
0 0% 100% 450.77ms 98.72%
google.golang.org/grpc/internal/transport.(*controlBuffer).get
0 0% 100% 450.77ms 98.72%
google.golang.org/grpc/internal/transport.(*loopyWriter).run
0 0% 100% 450.77ms 98.72%
google.golang.org/grpc/internal/transport.newHTTP2Client.func3
Thanks,
BLN
On Friday, 15 November 2019 11:20:59 UTC+5:30, robert engels wrote:
>
> I think an easier way is to enable the http based profiling, then just
> request the profile using the web interface using N seconds - much easier.
> You can make enabling the http profiling a compile time option.
>
> On Nov 14, 2019, at 10:41 PM, Michael Jones > wrote:
>
> If your program is endless, then you'll need to have a timer that says
> "it's been long enough, write the profile now"
>
> On Thu, Nov 14, 2019 at 9:35 AM bln prasad > wrote:
>
>> My applications main starts few go routines and runs indefinitely. its
>> like pprof.StopCPUProfile() may never get called.
>>
>> Thanks,
>> BLN
>>
>> On Wednesday, 13 November 2019 23:30:47 UTC+5:30, Ian Lance Taylor wrote:
>>>
>>> On Wed, Nov 13, 2019 at 9:37 AM bln prasad wrote:
>>> >
>>> > I'm running go application as systemd service. I've enabled cpu
>>> profile using pprof as specified in documents. When service ran, it's
>>> creating file but no samples are getting written to file.
>>> > Does it required any special build arguments?
>>> >
>>> >f, err := os.Create("/tmp/cpu.prof")
>>> > if err != nil {
>>> > log.Fatal("could not create CPU profile: ", err)
>>> > }
>>> > defer f.Close()
>>> >
>>> > if err := pprof.StartCPUProfile(f); err != nil {
>>> > log.Fatal("could not start CPU profile: ", err)
>>> > }
>>> > defer pprof.StopCPUProfile()
>>>
>>> It's impossible to tell without seeing more of your program. The
>>> program has to actually do something between the calls to
>>> StartCPUProfile and StopCPUProfile. In particular, samples are taken
>>> by default every 10 milliseconds, so if your program runs for a much
>>> shorter amount of time then it would be normal to not see any samples.
>>>
>>> Ian
>>>
>>
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>>
>
>
> --
>
> *Michael T. jonesmichae...@gmail.com *
>
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