Test latency to two EU/US-hosted otherwise-identical GAE apps

latency-eu-us-script

#!/bin/bash

# This script tries to find the difference in latency between Us/EU HTTP/HTTPS AppEngine apps.
# Also testing a simple '/' path from a '/slow' (which does a sleep(1) and simulates some traffic on page).
# Appids:
# - http://eu-ricc-test.appspot.com/
# - http://us-ricc-test.appspot.com/

VER=1.1c

WHERE="$(hostname)"
WHEN="$(date +%Y%m%d-%H%M%S)"
DEST="out/testricc-$WHEN-v$VER/"

mkdir -p "$DEST"

for DATACENTER in eu us; do
	for PROTO in http https; do
		for handler in fast slow; do
			URL="$PROTO://$DATACENTER-ricc-test.appspot.com/$handler"
			curl -o /dev/null -s -w %{time_namelookup}\\n%{time_connect}\\n%{time_appconnect}\\n%{time_total}\\n "$URL" | tee $DEST/$DATACENTER-$PROTO-$handler.$WHERE.v$VER.curl
	    done
    done
done

for f in $DEST/*.curl; do
	echo -e "$f: \t $(tail -1 $f)" | tee -a "$DEST/synoptic-$WHERE-v$VER.txt"
done