Skip to content

Update ztunnel profiling doc #1620

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
istio-testing merged 2 commits into from
Aug 28, 2025
Merged

Update ztunnel profiling doc #1620

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a8fc2bb
Update ztunnel profiling doc
find-arka Aug 28, 2025
7b1f62c
reset the numbers to 1 since markdown auto-renders them in order
find-arka Aug 28, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 5 additions & 5 deletions PROFILING.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
1. Port-forward admin port (15000):

```sh
k port-forward -n istio-system ztunnel-qkvdj 15000:15000
kubectl port-forward -n istio-system ztunnel-qkvdj 15000:15000
```

1. Either open `localhost:15000` in a browser for help, or just `curl` the CPU profile:
Expand All @@ -23,7 +23,7 @@ curl localhost:15000/debug/pprof/profile > profile.prof
1. Port-forward admin port (15000):

```sh
k port-forward -n istio-system ztunnel-qkvdj 15000:15000
kubectl port-forward -n istio-system ztunnel-qkvdj 15000:15000
```

1. Either open `localhost:15000` in a browser for help, or just `curl` the memory profile:
Expand All @@ -32,13 +32,13 @@ k port-forward -n istio-system ztunnel-qkvdj 15000:15000
curl localhost:15000/debug/pprof/heap > mem.pb.gz
```

1. If working remotely, copy container binaries to local path for symbol resolution:
1. Copy container binaries to local path for symbol resolution:

```sh
# ztunnel main binary
kubectl cp kube-system/ztunnel-qkvdj:/usr/local/bin/ztunnel ../../ztunnel-libs-pprof/ztunnel
kubectl cp istio-system/ztunnel-qkvdj:/usr/local/bin/ztunnel ../../ztunnel-libs-pprof/ztunnel
# stdlibs (optional)
kubectl cp kube-system/ztunnel-qkvdj:/usr/lib/$BINARY_COMPILED_ARCH/ ../../ztunnel-libs-pprof/
kubectl cp istio-system/ztunnel-qkvdj:/usr/lib/$BINARY_COMPILED_ARCH/ ../../ztunnel-libs-pprof/
```

1. Observe in your tooling of choice, such as golang's `pprof`:
Expand Down