zed/script/collab-flamegraph
Conrad Irwin ca37d39109
add a script to get a flamegraph of collab in production (#8972)
Add `./script/collab-flamegraph` so you can profile in production (or
staging)

Release Notes:

- N/A
2024-03-06 16:39:48 -07:00

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#!/bin/bash
# Notes for fixing this script if it's broken:
# - if you see an error about "can't find perf_6.1" you need to install `linux-perf` from the
# version of Debian that matches the host (e.g. apt-get -t bookworm-backports install linux-perf)
# - if you see an error about `addr2line` you may need to install binutils
set -euo pipefail
source script/lib/deploy-helpers.sh
if [[ $# != 1 ]]; then
echo "Usage: $0 <production|staging>"
exit 1
fi
environment=$1
target_zed_kube_cluster
echo "Running perf on collab, collecting 30s of data..."
kubectl -n $environment exec -it deployments/collab -- perf record -p 1 -g -m 64 --call-graph dwarf -- sleep 30
run="collab-$environment-$(date -Iseconds)"
echo "Processing data and downloading to '$run.perf'..."
kubectl -n $environment exec -it deployments/collab -- perf --no-pager script > "$run.perf"
which inferno-flamegraph 2>/dev/null || (echo "installing inferno..."; cargo install inferno)
inferno-collapse-perf "$run.perf" | inferno-flamegraph > "$run.svg"
open "$run.svg"