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Stefane Fermigier
neo
Commits
659ce938
Commit
659ce938
authored
Oct 10, 2017
by
Kirill Smelkov
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X neotest: Adjust ping and TCP RR sizes to fit 1 Ethernet frame, etc...
parent
af41382e
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View file @
659ce938
...
@@ -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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