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eaf5211928
This likely still needs some tuning/tweaking, but may be helpful as we start to do more scale/performance testing of the system.
1.6 KiB
1.6 KiB
Profiling Orca
If you run the Orca server with the debug flag set, not only will you get more logging output, but we enable remote pprof access.
Links:
Examples
- First deploy orca with debug.
- If you're using TLS (e.g., with bootstrap install) you'll need to add the certs to the local system's trusted certs (unfortunately pprof doesn't have an "--insecure" flag)
sudo bash -c "docker run --rm -it
--name orca-bootstrap
-v /var/run/docker.sock:/var/run/docker.sock
dockerorca/orca-bootstrap
dump-certs > /usr/local/share/ca-certificates/orca.crt"
sudo update-ca-certificates
* Now you can point pprof at the server
```bash
ORCA=https://192.168.104.73:443
go tool pprof ${ORCA}/debug/pprof/block
web
That will pop up a nice SVG image on your default browser showing the accumulated blocking calls
- Other URL endpoints of interest: ("web" should produce a nice summary in each of these)
- go tool pprof ${ORCA}/debug/pprof/profile - The CPU usage
- go tool pprof ${ORCA}/debug/pprof/heap - The memory usage
- go tool pprof ${ORCA}/debug/pprof/goroutine - The goroutine usage
- curl --insecure ${ORCA}/debug/pprof/ - Display the entry points (or use your browser)
Dropped nodes
- It looks like nodefraction can be used to include nodes that would otherwise be dropped, but the web visualization seems to ignore it
go tool pprof -nodefraction=0.00000001 ${ORCA}/debug/pprof/block
peek swarm