In addition to the documentation that Hana pointed to, she also just gave a great talk that included a walk through of the new features and how they may be used to view high latency events: https://www.youtube.com/watch?v=FJQjUueBJ2A
It's worth watching if you are interested in tracing and latency, and I'm looking forward to trying the new APIs soon. On Mon, May 7, 2018 at 1:31 PM, Hyang-Ah Hana Kim <hyan...@gmail.com> wrote: > Have you tried the new annotation api in the tip? > tip.golang.org/pkg/runtime/trace? > Please see if annotating in the source code with Region or Task would work > for your case. > > > On Wed, May 2, 2018 at 8:59 AM, <neven.miculi...@gmail.com> wrote: >> >> High level goal: >> >> I have an application with significant number of goroutine experiencing >> latency issues. I want to detect and dissect where those issues arise and >> determine how can I fix them. For that I’ve use go tool trace >> >> Middle-level features: >> >> I want to filter event in the catapult viewer (( I cannot find >> documentation how to do it, and JS ecosystem I’m not really proficient in )) > > > What kind of filtering do you want to perform? >> >> Since I’m using errgroups, event names are all >> “$(pwd)/vendor/golang.org/x/sync/errgroup.(*Group).Go.func1” Not really >> informative. I’d like to include/exclude specific stack frame from appearing >> on the regex level perhaps? e.g. >> if I have stack A ->B->C and I’m filtering C, I’m expecting to see only B >> on the summary, and A->B in the details > > > If you can use the annotation api, you can mark the interesting goroutine > execution with Region and with the new trace (included in the tip) you can > select only the goroutines with the specified Region. > >> >> In chrome tracing format specification, it says there are event types. I >> cannot find how to do filtering on them in the catapult viewer > > > I don't think the catapult viewer supports any kind of filtering based on > the event type, or I am afraid I misunderstood what you want. > > > -- > __ > > -- > 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 golang-nuts+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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 golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
