Hi Kevin, Sorry for the late reply.
Yes, I did enable the flow event lines. For my program, I did see the event lines for GC related activities. Earlier, I had tried with my own code copying parts of code to start capture, write, etc. But in my try, I didn't get the event lines for my code. After seeing your mail, I tried the exact code in the blog. That seems to work (I had to tweak some threshold numbers since duration was much less than 100ms for the requests). I will try to change my code based on what I see and continue my experiment. Thank you very much. Regards Dharani On Thu, Oct 9, 2025 at 8:11 PM Kevin Chowski <[email protected]> wrote: > Just to make sure: you've enabled the flow event lines on the webpage, > right? In the post there is a picture of how to do so right after this > sentence (at least on mobile): > > "Enabling the visualization of all flow events often provides clues that > hint at the source of a problem." > > If that isn't the problem: have you tried running the self-contained > example provided in the post? If you've enabled this visualization for a > trace gathered on your own code and it's still not working, try using the > code given and visualizing that trace. Surely THAT code should work for > producing the arrows, otherwise there's some error in that post. > > > > On Wednesday, October 8, 2025 at 1:03:32 AM UTC-7 Tharaneedharan > Vilwanathan wrote: > >> Hi All, >> >> I have a quick question. I am going through the flight recorder blog post >> (https://go.dev/blog/flight-recorder) and trying various things. In >> particular, I am trying "flow events" to see if I can get the connecting >> lines with arrow marks. No matter what I do, I couldn't get the connecting >> lines for my code. What causes those lines? New goroutine? Channel >> communication? Function call? Calling a function in another package? To the >> extent I checked, it looks like spawning a new go routine produces >> connecting lines but I am unable to make it happen for my code. >> >> Any clues? Can you please share your thoughts? >> >> Regards >> Dharani >> >> >> >> >> -- > You received this message because you are subscribed to the Google Groups > "golang-nuts" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/d/msgid/golang-nuts/79f2c324-4f88-40f8-873c-2ae940d68f64n%40googlegroups.com > <https://groups.google.com/d/msgid/golang-nuts/79f2c324-4f88-40f8-873c-2ae940d68f64n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/golang-nuts/CAN-HoCmHpMdXwOx_SO2_TLXZMH6Aqm9jSmTVv6xjekpsbQ-mpQ%40mail.gmail.com.
