Add Caladan support

caladan.config

+# an example runtime config file
+host_addr 192.168.199.1
+host_netmask 255.255.255.0
+host_gateway 192.168.199.1
+runtime_kthreads {threads}
+runtime_guaranteed_kthreads {threads}
+runtime_priority lc

configs/base.sh

@@ -3,6 +3,7 @@ CPUPOWER=cpupower
 X86_ENERGY_PERF_POLICY=x86_energy_perf_policy
 PERF=perf
 FSTACK_SRC=/home/p5cai/workspace/f-stack
+CALADAN_SRC=/home/p5cai/workspace/caladan
 
 # Execute all SSH commands under this user
 # so that we don't need ssh keys for root

configs/memcached.sh

 MEMCACHED=/home/p5cai/workspace/memcached/memcached
 MEMCACHED_FSTACK=/home/p5cai/workspace/memcached-fstack/memcached
+MEMCACHED_CALADAN=/home/p5cai/workspace/memcached-caladan/memcached

experiments/memcached.shared.sh

@@ -25,7 +25,8 @@ cleanup_memcached() {
 
 start_memcached() {
     echo "Starting memcached"
-    taskset -c 0-$((THREADS - 1)) $MEMCACHED -u root -t $THREADS -b 16384 -c 32768 -m 10240 -o hashpower=24,no_lru_maintainer,no_lru_crawler $MEMCACHED_ARGS 2>&1 > /tmp/memcached.lastexp.log &
+    echo "taskset -c 0-$((THREADS - 1)) $MEMCACHED $MEMCACHED_ARGS -u root -t $THREADS -b 16384 -c 32768 -m 10240 -o hashpower=24,no_lru_maintainer,no_lru_crawler" 
+    taskset -c 0-$((THREADS - 1)) $MEMCACHED $MEMCACHED_ARGS -u root -t $THREADS -b 16384 -c 32768 -m 10240 -o hashpower=24,no_lru_maintainer,no_lru_crawler &
     MEMCACHED_PID=$!
 }
 
@@ -65,6 +66,10 @@ memcached_pre_start() {
 
     if [ "$FSTACK" == "true" ]; then
         MEMCACHED="$MEMCACHED_FSTACK"
+    elif [ "$CALADAN" == "true" ]; then
+        MEMCACHED="$MEMCACHED_CALADAN"
+        MEMCACHED_ARGS="$MEMCACHED_ARGS $CALADAN_CONFIG -p 11211"
+        REINIT_RUNS=9999 # Caladan does not support restarting the application process properly
     fi
 
     EXPERIMENT_NAME_EXT="t$THREADS.c$CONNS"

experiments/memcached_qps_scan.sh

@@ -6,6 +6,11 @@ QPS_STEP_PER_THREAD=5000
 
 pre_start() {
     memcached_pre_start
+
+    if [ "$CALADAN" == "true" ]; then
+        QPS_STEP_PER_THREAD=20000
+        QPS_END_PER_THREAD=330000
+    fi
 }
 
 run_exp() {

run.sh

@@ -41,6 +41,11 @@ while [[ $# -gt 0 ]]; do
             USERSTACK=true
             shift
             ;;
+        --caladan)
+            CALADAN=true
+            USERSTACK=true
+            shift
+            ;;
         *)
             echo "Unknown option $1"
             exit 1
@@ -80,6 +85,23 @@ if [ "$USERSTACK" == "true" ]; then
     mount -t hugetlbfs nodev /mnt/huge || true
 fi
 
+if [ "$CALADAN" == "true" ]; then
+    pkill iokerneld || true
+    pkill memcached || true
+    if [ "$THREADS" -le 1 ]; then
+        echo "Must allocate one thread for IOKernel"
+        exit 1
+    fi
+    CALADAN_CONFIG=/tmp/caladan.config
+    sed "s/{threads}/$((THREADS - 1))/g" ./caladan.config > $CALADAN_CONFIG
+    $CALADAN_SRC/scripts/setup_machine.sh || true
+    sleep 5
+    echo "Starting up Caladan iokernel"
+    $CALADAN_SRC/iokerneld simple noht &
+    CALADAN_PID=$!
+    sleep 5
+fi
+
 source "./experiments/$EXPERIMENT.sh"
 
 pre_start $@
@@ -91,6 +113,9 @@ fi
 if [ "$FSTACK" == "true" ]; then
     EXPERIMENT_NAME="$EXPERIMENT_NAME.fstack"
 fi
+if [ "$CALADAN" == "true" ]; then
+    EXPERIMENT_NAME="$EXPERIMENT_NAME.caladan"
+fi
 if [ ! -z "$EXPERIMENT_NAME_EXT" ]; then
     EXPERIMENT_NAME="$EXPERIMENT_NAME.$EXPERIMENT_NAME_EXT"
 fi
@@ -103,3 +128,7 @@ mkdir -p "$DATA_OUT"
 run_exp
 
 post_start
+
+if [ "$CALADAN" == "true" ]; then
+    kill -KILL "$CALADAN_PID"
+fi