Hey, in the end I've used opencensus which has the same features as go's spans, but it's designed for distributed tracing. I already have multiple backend support, which supports more advanced filtering options than chrome://tracings's catapult viewer.
Thanks, Neven Miculinić On Tue, 8 May 2018 at 08:42, Tarmigan <tarmigan+gol...@gmail.com> wrote: > 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.
