wgetでの結果は次の通りです。単体で動作させた場合、わずかながらドメインUにおけるネットワーク性能の方が良いように見えます。
ドメイン0からのwgetの結果
wakatono@kid:~$ wget http://www.example.com/~wakatono/sample.file -O /dev/null
--18:11:05-- http://www.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com[192.168.0.214]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 10.97M/s
18:11:05 (10.97 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@kid:~$ wget http://www.example.com/~wakatono/sample.file -O /dev/null
--18:11:07-- http://www.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com[192.168.0.214]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.18M/s
18:11:08 (11.18 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@kid:~$ wget http://www.example.com/~wakatono/sample.file -O /dev/null
--18:11:10-- http://www.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com[192.168.0.214]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.18M/s
18:11:11 (11.18 MB/s) - `/dev/null' saved [10485760/10485760]
別マシンからドメイン0に対してwgetを実行した結果
wakatono@ns2:~$ wget http://kid.example.com/~wakatono/sample.file -O /dev/null
--18:20:33-- http://kid.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving kid.example.com... done.
Connecting to kid.example.com[192.168.0.213]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.26M/s ETA 00:00
18:20:34 (11.26 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@ns2:~$ wget http://kid.example.com/~wakatono/sample.file -O /dev/null
--18:20:35-- http://kid.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving kid.example.com... done.
Connecting to kid.example.com[192.168.0.213]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.26M/s ETA 00:00
18:20:36 (11.26 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@ns2:~$ wget http://kid.example.com/~wakatono/sample.file -O /dev/null
--18:20:37-- http://kid.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving kid.example.com... done.
Connecting to kid.example.com[192.168.0.213]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.29M/s ETA 00:00
18:20:37 (11.29 MB/s) - `/dev/null' saved [10485760/10485760]
ドメインU×1個におけるネットワークの性能を見る
[wakatono@jannedaarc ~]$ wget http://www.example.com/~wakatono/sample.file -O /dev/null
--18:13:52-- http://www.example.com/~wakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com|192.168.0.214|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 (10M) [text/plain]
100%[====================================>] 10,485,760 11.22M/s
18:13:53 (11.22 MB/s) - `/dev/null' saved [10485760/10485760]
[wakatono@jannedaarc ~]$ wget http://www.example.com/~wakatono/sample.file -O /de
v/null
--18:13:54-- http://www.example.com/~wakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com|192.168.0.214|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 (10M) [text/plain]
100%[====================================>] 10,485,760 11.22M/s
18:13:54 (11.22 MB/s) - `/dev/null' saved [10485760/10485760]
[wakatono@jannedaarc ~]$ wget http://www.example.com/~wakatono/sample.file -O /dev/null
--18:13:56-- http://www.example.com/~wakatono/sample.file
=> `/dev/null'
Resolving www.example.com... 192.168.0.214
Connecting to www.example.com|192.168.0.214|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 (10M) [text/plain]
100%[====================================>] 10,485,760 11.22M/s
18:13:57 (11.22 MB/s) - `/dev/null' saved [10485760/10485760]
別マシンからドメインUに対するwgetの結果
wakatono@ns2:~$ wget http://jannedaarc.example.com/~wakatono/sample.file -O /dev/
null
--18:23:00-- http://jannedaarc.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving jannedaarc.example.com... done.
Connecting to jannedaarc.example.com[192.168.0.210]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.27M/s ETA 00:00
18:23:01 (11.27 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@ns2:~$ wget http://jannedaarc.example.com/~wakatono/sample.file -O /dev/
null
--18:23:02-- http://jannedaarc.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving jannedaarc.example.com... done.
Connecting to jannedaarc.example.com[192.168.0.210]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.27M/s ETA 00:00
18:23:03 (11.27 MB/s) - `/dev/null' saved [10485760/10485760]
wakatono@ns2:~$ wget http://jannedaarc.example.com/~wakatono/sample.file -O /dev/
null
--18:23:04-- http://jannedaarc.example.com/%7Ewakatono/sample.file
=> `/dev/null'
Resolving jannedaarc.example.com... done.
Connecting to jannedaarc.example.com[192.168.0.210]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 10,485,760 [text/plain]
100%[====================================>] 10,485,760 11.27M/s ETA 00:00
18:23:05 (11.27 MB/s) - `/dev/null' saved [10485760/10485760]
incomingの性能については、ドメイン0からのwgetの結果が11.2MB/sをわずかに下回り、ドメインUからのwgetの結果が11.2MBをわずかに上回るといった結果になりました。
outgoingの性能は、incomingよりかは若干よかったものの、incomingと同様の傾向が見られます。これはincomingとoutgoingのカーネル上の処理が違うことに起因しているのでしょう。
incoming、outgoingともに同様の傾向が見られたこともあり、以後はincomingについて性能測定を行います（性能測定の対象となるVMからのwgetコマンド実行のみを実施）。
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