Fix network worker smoke test

Don't bother with stopping every process one by one, correct
endpoints gathering from logs and test configuration.

tests/workers/network/smoke.sh

@@ -6,6 +6,7 @@ stop() { echo "$*" 1>&2 ; exit 1; }
 which bpftrace &>/dev/null || stop "Don't have bpftrace"
 which bpftool &>/dev/null || stop "Don't have bpftool"
 which berserker &>/dev/null || stop "Don't have berserker"
+which pkill &>/dev/null || stop "Don't have pkill"
 
 if [ ! -d "tests/workers/network/" ]; then
   echo "Can't find test directory. Smoke tests have to be run from the project root directory"
@@ -18,9 +19,15 @@ rm -f /tmp/tcpaccept.log
 # in case if it's still running from a previous run
 pkill berserker || true
 
+# make berserkers verbose
+#export RUST_LOG=trace
+
+# start the server before bpftrace, to skip first accept
+echo "Starting the server..."
+berserker tests/workers/network/workload.server.toml &> /tmp/server.log &
+
 echo "Starting bpftrace..."
 bpftrace tests/workers/network/sys_accept.bt &> /tmp/tcpaccept.log &
-export BPFTRACE_PID=$!
 
 # let bpftrace attach probes
 attempts=0
@@ -37,30 +44,21 @@ do
     sleep 0.5;
 done
 
-echo "Starting the server..."
-berserker tests/workers/network/workload.server.toml &> /tmp/server.log &
-export SERVER_PID=$!
-
 echo "Starting the client..."
 berserker tests/workers/network/workload.client.toml &> /tmp/client.log &
-export CLIENT_PID=$!
 
 # let it do some work
 sleep 5;
 
 echo "Stopping..."
-kill "${CLIENT_PID}" || { echo 'Can't stop the client ; exit 1; }
-kill "${SERVER_PID}" || { echo 'Can't stop the server ; exit 1; }
-kill "${BPFTRACE_PID}" || { echo 'Can't stop the bpftrace ; exit 1; }
+pkill berserker || true
+pkill bpftrace || true
 
 echo "Verifying the results..."
-ENDPOINTS=$(cat /tmp/tcpaccept.log |\
-                grep hit |\
-                awk '{print $4 " " $5}' |\
-                sort | uniq -c | wc -l)
+ENDPOINTS=$(cat /tmp/tcpaccept.log | grep hit | wc -l || echo "")
 
 if (( $ENDPOINTS > 0 )); then
-    echo "PASS"
+    echo "PASS (${ENDPOINTS} seen connections)"
 
     rm -f /tmp/server.log
     rm -f /tmp/client.log

tests/workers/network/workload.client.toml

@@ -5,8 +5,8 @@ workers = 1
 [workload]
 type = "network"
 server = false
-address = [192, 168, 0, 1]
+address = [10, 0, 0, 1]
 target_port = 8081
-arrival_rate = 1000
+arrival_rate = 100
 departure_rate = 1
 nconnections = 10

tests/workers/network/workload.server.toml

@@ -5,7 +5,7 @@ workers = 1
 [workload]
 type = "network"
 server = true
-address = [192, 168, 0, 1]
+address = [10, 0, 0, 1]
 target_port = 8081
 arrival_rate = 0.1
 departure_rate = 0.1