Add go pprof support across fission components (#2112)

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>
2021-07-16 13:34:03 +05:30
parent c85b9e8cbc
commit f3e1f9df90
9 changed files with 164 additions and 5 deletions
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+# Profiling Fission with Pprof
+
+Fission uses [net/pprof](https://pkg.go.dev/net/http/pprof) for profiling the code across Fission components.
+It would be helpful in identifying performance bottlenecks.
+
+To enable profiling, just set `pprof.enabled` to `true` while installing Fission helm chart.
+
+## Pprof data of component pod
+
+Do port forwarding to port 6060 of the pod,
+
+```sh
+kubectl port-forward pod/executor-668dfd7c89-2b2ff 6060:6060
+```
+
+Run different commands to get or analyze pprof data,
+
+```sh
+go tool pprof http://localhost:6060/debug/pprof/flamegraph
+
+go tool pprof http://localhost:6060/debug/pprof/profile\?seconds\=60
+```
+
+You can also analyze with binary to get correct references of source,
+
+```sh
+# Download binary from pod
+kubectl cp fission/executor-668dfd7c89-2b2ff:/fission-bundle fission-bundle
+
+go tool pprof -http ":49816" fission-bundle http://localhost:49513/debug/pprof
+```
+
+You can also download pprof data and visualize/analyze with different compatible tools.