ブログ - iperf3でネットワークスピードの計測 その２ ローカルで計測
iperf3でネットワークスピードの計測では，ちゃんとネットワーク越しに計測したのだけど，ふと，クラサバで通信しているならローカルでも実行できるのでは？と思いついて実行してみた．
まずはMac Pro 2013での実行結果．
次にmac mini 2014での計測結果．
39Gbpsと14Gbpsか．2.8倍．
この性能差は，よく言われるCPU性能差かなぁ．
Geekbenchだと次のような結果．
mac mini 2014
https://browser.geekbench.com/macs/mac-mini-late-2014-intel-core-i5-4308u-2-8-ghz-2-cores
single 946
multi-core 1845
Mac Pro (Late 2013)
https://browser.geekbench.com/macs/mac-pro-late-2013
single 757
multi-core 3548
ここで雑に計算してみる．
うちのmac mini 2014は，Intel Core i5 Dual Core 2.8Gzなので，2.8Ghz X 2core X score 946 = 5.297.6
同じくMac Pro 2014はIntel Xeon 6 core 3.5GHz = 3.5GHz X 6core X score 757 = 15,897
mac mini 2014の5.297.6，Mac Pro 2013の15,897は約3倍．iperf3の2.8倍と近い感じだ．．．
まずはMac Pro 2013での実行結果．
$ /usr/local/bin/iperf3 -c 192.168.20.47🆑
Connecting to host 192.168.20.47, port 5201
[ 5] local 192.168.20.47 port 64652 connected to 192.168.20.47 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 4.30 GBytes 36.9 Gbits/sec
[ 5] 1.00-2.00 sec 4.55 GBytes 39.1 Gbits/sec
[ 5] 2.00-3.00 sec 4.58 GBytes 39.2 Gbits/sec
[ 5] 3.00-4.00 sec 4.57 GBytes 39.2 Gbits/sec
[ 5] 4.00-5.00 sec 4.54 GBytes 39.1 Gbits/sec
[ 5] 5.00-6.00 sec 4.54 GBytes 38.9 Gbits/sec
[ 5] 6.00-7.00 sec 4.54 GBytes 39.1 Gbits/sec
[ 5] 7.00-8.00 sec 4.48 GBytes 38.4 Gbits/sec
[ 5] 8.00-9.00 sec 4.39 GBytes 37.7 Gbits/sec
[ 5] 9.00-10.00 sec 4.52 GBytes 39.0 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 45.0 GBytes 38.7 Gbits/sec sender
[ 5] 0.00-10.00 sec 45.0 GBytes 38.7 Gbits/sec receiver
iperf Done.
$
$ iperf3 -c 192.168.20.35🆑
Connecting to host 192.168.20.35, port 5201
[ 5] local 192.168.20.35 port 51757 connected to 192.168.20.35 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 1.60 GBytes 13.7 Gbits/sec
[ 5] 1.00-2.00 sec 1.61 GBytes 13.8 Gbits/sec
[ 5] 2.00-3.00 sec 1.64 GBytes 14.2 Gbits/sec
[ 5] 3.00-4.00 sec 1.64 GBytes 14.1 Gbits/sec
[ 5] 4.00-5.00 sec 1.64 GBytes 14.0 Gbits/sec
[ 5] 5.00-6.00 sec 1.62 GBytes 13.9 Gbits/sec
[ 5] 6.00-7.00 sec 1.64 GBytes 14.1 Gbits/sec
[ 5] 7.00-8.00 sec 1.61 GBytes 13.9 Gbits/sec
[ 5] 8.00-9.00 sec 1.62 GBytes 13.9 Gbits/sec
[ 5] 9.00-10.00 sec 1.64 GBytes 14.1 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate
[ 5] 0.00-10.00 sec 16.3 GBytes 14.0 Gbits/sec sender
[ 5] 0.00-10.00 sec 16.3 GBytes 14.0 Gbits/sec receiver
iperf Done.
$この性能差は，よく言われるCPU性能差かなぁ．
Geekbenchだと次のような結果．
mac mini 2014
https://browser.geekbench.com/macs/mac-mini-late-2014-intel-core-i5-4308u-2-8-ghz-2-cores
single 946
multi-core 1845
Mac Pro (Late 2013)
https://browser.geekbench.com/macs/mac-pro-late-2013
single 757
multi-core 3548
ここで雑に計算してみる．
うちのmac mini 2014は，Intel Core i5 Dual Core 2.8Gzなので，2.8Ghz X 2core X score 946 = 5.297.6
同じくMac Pro 2014はIntel Xeon 6 core 3.5GHz = 3.5GHz X 6core X score 757 = 15,897
mac mini 2014の5.297.6，Mac Pro 2013の15,897は約3倍．iperf3の2.8倍と近い感じだ．．．
