diff --git a/repos/libports/run/lwip.run b/repos/libports/run/lwip.run
index bf276fc6c..17775faa1 100644
--- a/repos/libports/run/lwip.run
+++ b/repos/libports/run/lwip.run
@@ -93,7 +93,7 @@ append_if [have_spec gpio] config "
 
 append_if $use_usb_driver config {
 	<start name="usb_drv">
-		<resource name="RAM" quantum="12M"/>
+		<resource name="RAM" quantum="14M"/>
 		<provides>
 			<service name="Nic"/>
 		</provides>
diff --git a/repos/libports/run/nic_dump.run b/repos/libports/run/nic_dump.run
index 7bdbdaef6..90a569113 100644
--- a/repos/libports/run/nic_dump.run
+++ b/repos/libports/run/nic_dump.run
@@ -64,7 +64,7 @@ proc nic_drv_config { } {
 	if {[nic_drv] == "usb_drv"} {
 		append result {
 			<start name="usb_drv">
-				<resource name="RAM" quantum="12M"/>
+				<resource name="RAM" quantum="14M"/>
 				<provides>
 					<service name="Nic"/>
 				</provides>
@@ -84,11 +84,16 @@ proc server_bin { prot } {
 	if {$prot == "udp"}  { return "test-lxip_udp_echo" }
 	if {$prot == "http"} { return "test-lwip_httpsrv_static" } }
 
+proc ram_quota { prot } {
+	if {$prot == "udp"}  { return 28M }
+	if {$prot == "http"} { return 12M }
+}
+
 proc client_config { prot index ip_addr gateway netmask nic srv_port srv_ip } {
 	append result {
 		<start name="} $prot {_client_} $index {">
 			<binary  name="} [client_bin $prot] {" />
-			<resource name="RAM" quantum="28M"/>
+			<resource name="RAM" quantum="} [ram_quota $prot] {"/>
 			<route>
 				<service name="Nic"> <child name="} $nic {"/> </service>
 				<any-service> <parent/> <any-child/> </any-service>
@@ -106,7 +111,7 @@ proc server_config { prot index ip_addr gateway netmask nic port } {
 	append result {
 		<start name="} $prot {_server_} $index {">
 			<binary  name="} [server_bin $prot] {" />
-			<resource name="RAM" quantum="28M"/>
+			<resource name="RAM" quantum="} [ram_quota $prot] {"/>
 			<route>
 				<service name="Nic"> <child name="} $nic {"/> </service>
 				<any-service> <parent/> <any-child/> </any-service>
diff --git a/repos/libports/run/nic_router.run b/repos/libports/run/nic_router.run
index d17d1e659..f61970856 100644
--- a/repos/libports/run/nic_router.run
+++ b/repos/libports/run/nic_router.run
@@ -68,7 +68,7 @@ proc nic_drv_config { } {
 	if {[nic_drv] == "usb_drv"} {
 		append result {
 			<start name="usb_drv">
-				<resource name="RAM" quantum="12M"/>
+				<resource name="RAM" quantum="14M"/>
 				<provides>
 					<service name="Nic"/>
 				</provides>
@@ -88,11 +88,16 @@ proc server_bin { prot } {
 	if {$prot == "udp"}  { return "test-lxip_udp_echo" }
 	if {$prot == "http"} { return "test-lwip_httpsrv_static" } }
 
+proc ram_quota { prot } {
+	if {$prot == "udp"}  { return 28M }
+	if {$prot == "http"} { return 12M }
+}
+
 proc client_config { prot index ip_addr gateway netmask nic srv_port srv_ip } {
 	append result {
 		<start name="} $prot {_client_} $index {">
 			<binary  name="} [client_bin $prot] {" />
-			<resource name="RAM" quantum="28M"/>
+			<resource name="RAM" quantum="} [ram_quota $prot] {"/>
 			<route>
 				<service name="Nic"> <child name="} $nic {"/> </service>
 				<any-service> <parent/> <any-child/> </any-service>
@@ -110,7 +115,7 @@ proc server_config { prot index ip_addr gateway netmask nic port } {
 	append result {
 		<start name="} $prot {_server_} $index {">
 			<binary  name="} [server_bin $prot] {" />
-			<resource name="RAM" quantum="28M"/>
+			<resource name="RAM" quantum="} [ram_quota $prot] {"/>
 			<route>
 				<service name="Nic"> <child name="} $nic {"/> </service>
 				<any-service> <parent/> <any-child/> </any-service>
@@ -277,6 +282,6 @@ proc nic_qemu_args { } {
 	if {[have_spec x86]}     { return "-net nic,model=e1000" }
 	if {[have_spec lan9118]} { return "-net nic,model=lan9118" } }
 
-append qemu_args "-m 400 -nographic -net user -redir udp:5555::1337 [nic_qemu_args]"
+append qemu_args "-m 384 -nographic -net user -redir udp:5555::1337 [nic_qemu_args]"
 
 run_genode_until {.*Test done.*\n.*Test done.*\n.*Test done.*\n.*Test done.*\n.*Test done.*\n.*Test done.*\n} 60
diff --git a/repos/ports/run/netperf.inc b/repos/ports/run/netperf.inc
index fac722a6f..046748f76 100644
--- a/repos/ports/run/netperf.inc
+++ b/repos/ports/run/netperf.inc
@@ -149,9 +149,14 @@ append_if $use_nic_bridge config {
 		</route>
 	</start> }
 
+proc usb_drv_ram_quota {} {
+	if {[have_spec x86]} { return 18M }
+	return 14M
+}
+
 append_if $use_usb_driver config {
 	<start name="usb_drv">
-		<resource name="RAM" quantum="12M"/>
+		<resource name="RAM" quantum="} [usb_drv_ram_quota] {"/>
 		<provides>
 			<service name="Nic"/>
 		</provides>}
@@ -165,7 +170,7 @@ append_if $use_usb_driver config {
 append_if $use_nic_driver config {
 	<start name="nic_drv">
 		<binary name="} [nic_drv_binary] {"/>
-		<resource name="RAM" quantum="4M"/>
+		<resource name="RAM" quantum="8M"/>
 		<provides><service name="Nic"/></provides>
 	</start>}
 
diff --git a/repos/ports/run/noux_net_netcat.run b/repos/ports/run/noux_net_netcat.run
index ff3e21893..eeff78066 100644
--- a/repos/ports/run/noux_net_netcat.run
+++ b/repos/ports/run/noux_net_netcat.run
@@ -92,7 +92,7 @@ append config {
 		</config>
 	</start>
 	<start name="nic_bridge">
-		<resource name="RAM" quantum="4M"/>
+		<resource name="RAM" quantum="6M"/>
 		<provides><service name="Nic"/></provides>
 		<config/>
 		<route>}