タグ: gcc

WZR-900DHPと-O3、それとSFE

WZR-900DHP (LEDE-Project master)にて、gccの-O3オプションとSFEドライバをそれぞれ使用しWAN -> LANを計測してみた結果。

S751/C (Client) — (192.168.15.0/24, WAN) — WZR-900DHP — (192.168.12.0/24, LAN) — 自作PC (Server)

Speed Log
default 385Mbps
Connecting to host 192.168.12.176, port 5201
[  4] local 192.168.15.1 port 50066 connected to 192.168.12.176 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  46.1 MBytes   386 Mbits/sec                  
[  4]   1.00-2.00   sec  46.0 MBytes   386 Mbits/sec                  
[  4]   2.00-3.00   sec  45.4 MBytes   380 Mbits/sec                  
[  4]   3.00-4.00   sec  46.1 MBytes   387 Mbits/sec                  
[  4]   4.00-5.00   sec  45.9 MBytes   385 Mbits/sec                  
[  4]   5.00-6.00   sec  46.0 MBytes   387 Mbits/sec                  
[  4]   6.00-7.00   sec  46.0 MBytes   386 Mbits/sec                  
[  4]   7.00-8.00   sec  46.1 MBytes   386 Mbits/sec                  
[  4]   8.00-9.00   sec  45.9 MBytes   386 Mbits/sec                  
[  4]   9.00-10.00  sec  46.0 MBytes   386 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   460 MBytes   385 Mbits/sec                  sender
[  4]   0.00-10.00  sec   460 MBytes   385 Mbits/sec                  receiver

iperf Done.
        
-O3, gcc-7.x 382Mbps
Connecting to host 192.168.12.176, port 5201
[  4] local 192.168.15.1 port 50136 connected to 192.168.12.176 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  43.5 MBytes   364 Mbits/sec                  
[  4]   1.00-2.00   sec  46.0 MBytes   385 Mbits/sec                  
[  4]   2.00-3.00   sec  46.9 MBytes   394 Mbits/sec                  
[  4]   3.00-4.00   sec  46.8 MBytes   392 Mbits/sec                  
[  4]   4.00-5.00   sec  45.5 MBytes   382 Mbits/sec                  
[  4]   5.00-6.00   sec  41.6 MBytes   349 Mbits/sec                  
[  4]   6.00-7.00   sec  46.8 MBytes   393 Mbits/sec                  
[  4]   7.00-8.00   sec  47.0 MBytes   393 Mbits/sec                  
[  4]   8.00-9.00   sec  46.9 MBytes   394 Mbits/sec                  
[  4]   9.00-10.01  sec  45.5 MBytes   378 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.01  sec   456 MBytes   382 Mbits/sec                  sender
[  4]   0.00-10.01  sec   456 MBytes   382 Mbits/sec                  receiver

iperf Done.
        
SFE(#1269) 446Mbps
Connecting to host 192.168.12.176, port 5201
[  4] local 192.168.15.1 port 50198 connected to 192.168.12.176 port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec  53.5 MBytes   449 Mbits/sec                  
[  4]   1.00-2.00   sec  53.8 MBytes   450 Mbits/sec                  
[  4]   2.00-3.00   sec  52.2 MBytes   439 Mbits/sec                  
[  4]   3.00-4.00   sec  53.0 MBytes   445 Mbits/sec                  
[  4]   4.00-5.00   sec  52.9 MBytes   444 Mbits/sec                  
[  4]   5.00-6.00   sec  53.4 MBytes   446 Mbits/sec                  
[  4]   6.00-7.00   sec  53.1 MBytes   447 Mbits/sec                  
[  4]   7.00-8.00   sec  53.1 MBytes   446 Mbits/sec                  
[  4]   8.00-9.00   sec  53.2 MBytes   446 Mbits/sec                  
[  4]   9.00-10.00  sec  53.5 MBytes   448 Mbits/sec                  
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec   532 MBytes   446 Mbits/sec                  sender
[  4]   0.00-10.00  sec   532 MBytes   446 Mbits/sec                  receiver

iperf Done.
        

gccのオプションを変更したファームでは、最大値こそ大きいものの頻繁に速度が落ちる現象が発生しており、最終値はデフォルト設定のファームをわずかに下回った。
SFEドライバを含むファームは、”劇的に” という程まではいかないものの、相変わらずしっかりと伸ばしてくれた。

広告