#!/bin/sh

REPORT_DIR="/tmp/perf-reports"

devnull=
callgraph=
while true; do
    case "$1" in
        --devnull) devnull=yes ; shift ;;
        --callgraph) callgraph=yes ; shift ;;
        -h|--help)
            echo "Usage: $(basename "$0") [--devnull --callgraph] command"
            exit 0
            ;;
        *)
            break
            ;;
    esac
done

mkdir -p "$REPORT_DIR"
f="$(mktemp "--tmpdir=$REPORT_DIR" XXXXXXXXXX.data)"
if [ -n "$devnull" ]; then
    if [ -n "$callgraph" ]; then
        perf record -R -m 4096 --all-cpus -F 10000 -o "$f" -g --call-graph dwarf "$@" > /dev/null
    else
        perf record -R -m 4096 --all-cpus -F 10000 -o "$f" -g "$@" > /dev/null
    fi
else
    if [ -n "$callgraph" ]; then
        perf record -R -m 4096 --all-cpus -F 10000 -o "$f" -g --call-graph dwarf "$@"
    else
        perf record -R -m 4096 --all-cpus -F 10000 -o "$f" -g "$@"
    fi
fi
echo "===== perf report created: $f ====="
# exec perf report --no-inline -M att -i "$f"
exec perf report -M att -i "$f"