Commit 659ce938 authored by Kirill Smelkov's avatar Kirill Smelkov

X neotest: Adjust ping and TCP RR sizes to fit 1 Ethernet frame, etc...

parent af41382e
...@@ -786,7 +786,11 @@ cmd_bench-cluster() { ...@@ -786,7 +786,11 @@ cmd_bench-cluster() {
echo -e "\n*** link latency:" echo -e "\n*** link latency:"
peer=`python -c "import urlparse as p; u=p.urlparse(\"scheme://$url\"); print u.hostname"` peer=`python -c "import urlparse as p; u=p.urlparse(\"scheme://$url\"); print u.hostname"`
sizev="56 1472" # 16 = minimum ping payload size at which it starts putting struct timeval into payload and print RTT
# 1472 = 1500 (Ethernet MTU) - 20 (IPv4 header !options) - 8 (ICMPv4 header)
# 1452 = 1500 (Ethernet MTU) - 40 (IPv6 header !options) - 8 (ICMPv6 header)
# FIXME somehow IPv6 uses lower MTU than 1500 - recheck
sizev="16 1452" # max = min(IPv4, IPv6) so that it is always only 1 Ethernet frame on the wire
for size in $sizev; do for size in $sizev; do
echo -e "\n# `hostname`$peer (ping ${size}B)" echo -e "\n# `hostname`$peer (ping ${size}B)"
$profile sudo -n ping -i0 -w 3 -s $size -q $peer || echo "# skipped -> enable ping in sudo for `whoami`@`hostname`" $profile sudo -n ping -i0 -w 3 -s $size -q $peer || echo "# skipped -> enable ping in sudo for `whoami`@`hostname`"
...@@ -796,7 +800,11 @@ cmd_bench-cluster() { ...@@ -796,7 +800,11 @@ cmd_bench-cluster() {
done done
echo -e "\n*** TCP latency:" echo -e "\n*** TCP latency:"
sizev="1 1472 4096" # 1 = minimum TCP payload
# 1460 = 1500 (Ethernet MTU) - 20 (IPv4 header !options) - 20 (TCP header !options)
# 1440 = 1500 (Ethernet MTU) - 40 (IPv6 header !options) - 20 (TCP header !options)
# FIXME somehow IPv6 uses lower MTU than 1500 - recheck
sizev="1 1400 1500 4096" # 1400 = 1440 - ε (1 eth frame); 1500 = 1440 + ε (2 eth frames); 4096 - just big 4K (3 eth frames)
for size in $sizev; do for size in $sizev; do
echo -e "\n# `hostname`$peer (lat_tcp.c ${size}B -> lat_tcp.c -s)" echo -e "\n# `hostname`$peer (lat_tcp.c ${size}B -> lat_tcp.c -s)"
# TODO profile remotely # TODO profile remotely
......
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