simple fix

experiments/modes/nodeconfig.py

@@ -201,12 +201,12 @@ class I40eDCTCPNode(NodeConfig):
             'sysctl -w net.core.rmem_default=31457280',
             'sysctl -w net.core.rmem_max=31457280',
             'sysctl -w net.core.wmem_default=31457280',
-            'sysctl -w net.core.wmem_max = 31457280',
-            'sysctl -w net.core.optmem_max = 25165824',
-            'sysctl -w net.ipv4.tcp_mem = "786432 1048576 26777216"',
-            'sysctl -w net.ipv4.tcp_rmem = "8192 87380 33554432"',
-            'sysctl -w net.ipv4.tcp_wmem = "8192 87380 33554432"',
-            'sysctl -w net.ipv4.tcp_congestion_control = dctcp',
+            'sysctl -w net.core.wmem_max=31457280',
+            'sysctl -w net.core.optmem_max=25165824',
+            'sysctl -w net.ipv4.tcp_mem="786432 1048576 26777216"',
+            'sysctl -w net.ipv4.tcp_rmem="8192 87380 33554432"',
+            'sysctl -w net.ipv4.tcp_wmem="8192 87380 33554432"',
+            'sysctl -w net.ipv4.tcp_congestion_control=dctcp',
             'sysctl -w net.ipv4.tcp_ecn=1'
         ]
 
@@ -229,12 +229,12 @@ class CorundumDCTCPNode(NodeConfig):
             'sysctl -w net.core.rmem_default=31457280',
             'sysctl -w net.core.rmem_max=31457280',
             'sysctl -w net.core.wmem_default=31457280',
-            'sysctl -w net.core.wmem_max = 31457280',
-            'sysctl -w net.core.optmem_max = 25165824',
-            'sysctl -w net.ipv4.tcp_mem = "786432 1048576 26777216"',
-            'sysctl -w net.ipv4.tcp_rmem = "8192 87380 33554432"',
-            'sysctl -w net.ipv4.tcp_wmem = "8192 87380 33554432"',
-            'sysctl -w net.ipv4.tcp_congestion_control = dctcp',
+            'sysctl -w net.core.wmem_max=31457280',
+            'sysctl -w net.core.optmem_max=25165824',
+            'sysctl -w net.ipv4.tcp_mem="786432 1048576 26777216"',
+            'sysctl -w net.ipv4.tcp_rmem="8192 87380 33554432"',
+            'sysctl -w net.ipv4.tcp_wmem="8192 87380 33554432"',
+            'sysctl -w net.ipv4.tcp_congestion_control=dctcp',
             'sysctl -w net.ipv4.tcp_ecn=1'
         ]
 

experiments/modes/simulators.py

@@ -249,7 +249,7 @@ def create_dctcp_hosts(e, num, name_prefix, net, nic_class, host_class,
 
         host = host_class()
         host.name = '%s.%d' % (name_prefix, i)
-        host.freq = cpu_freq
+        host.cpu_freq = cpu_freq
 
         node_config = nc_class()
         node_config.mtu = mtu

experiments/pyexps/dctcp.py

@@ -17,11 +17,12 @@ types_of_app = ['DCTCPm']
 
 num_pairs = 2
 max_k = 199680
-k_step = 8320
+#k_step = 8320
+k_step = 16640
 link_rate_opt = '--LinkRate=10Gb/s ' # don't forget space at the end
 link_latency_opt = '--LinkLatency=0 '
 cpu_freq = '5GHz' #GHz
-mtu = 9000
+mtu = 4000
 
 ip_start = '192.168.64.1'
 
@@ -38,7 +39,7 @@ for h in types_of_host:
             net = net_class()
             net.opt = link_rate_opt + link_latency_opt + f'--EcnTh={k_val}'
 
-            e = exp.Experiment( h + '-' + c + '-' + 'dumbbell' + '-' + 'DCTCPm' + f'{k_val}')
+            e = exp.Experiment( h + '-' + c + '-' + 'dumbbell' + '-' + 'DCTCPm' + f'{k_val}' + f'-{mtu}')
             e.add_network(net)
             e.checkpoint = True