I am pretty sure there is a way to filter nodes that are less than X %, and 
some of that filtering is on by default - so you may want to turn that off 
(can't say for sure since not at dev machine right now).





-----Original Message-----
>From: Ian Lance Taylor <i...@golang.org>
>Sent: Oct 18, 2019 2:43 PM
>To: Piers Powlesland <pierspowlesl...@gmail.com>
>Cc: golang-nuts <golang-nuts@googlegroups.com>
>Subject: Re: [go-nuts] pprof not showing call hierarchy for time.now and 
>time.Until
>
>On Fri, Oct 18, 2019 at 12:37 PM <pierspowlesl...@gmail.com> wrote:
>>
>> I used pprof to get an overview of where time is being spent in my latest 
>> project and I'm
>> getting a result I don't understand. When using the web view, there are 
>> certain function
>> calls that are taking up a large percentage of the time but they appear 
>> un-rooted as in
>> there seems to be no parent call calling them.
>>
>> I have attached a picture of the web view showing just the un-rooted 
>> functions.
>>
>> I generated the profile with the following command.
>>
>> go test -cpuprofile cpu.prof -count 4 . -run MyTest
>>
>> and I viewed the profile with the following command.
>>
>> go tool pprof -http :9999 cpu.prof
>>
>> I'd really like to track down what is causing all this time in the time 
>> package, but I'm
>> at a bit of a loss.
>
>Which version of Go and which GOOS/GOARCH?  There have been bugs in
>this area in the past, and at least some of them are fixed in 1.13.
>
>Ian
>
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