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PCDVD數位科技討論區
(https://www.pcdvd.com.tw/index.php)
- 明誠科技
(https://www.pcdvd.com.tw/forumdisplay.php?f=84)
- - Gigabit的Switch及網卡?
(https://www.pcdvd.com.tw/showthread.php?t=651079)
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引用:
我的linux是用ubuntu的6.0.6版，核心是2.6.15-26-386，也沒去做什麼編譯核心的事，硬碟是一顆WD IDE 80G的硬碟，不知道還有什麼東西會跟傳輸的效能有關的，小弟我再提供。 |
果然越來越精采了.FlyinDance兄快點換張卡試試看吧!!
在windows的環境下,建議是採用多sessions才能逼近效能的極限.這個工具也可以拿來測試您路由器和防火牆的性能,不過在windows環境下sessions開太大程式會直接當掉. |
引用:
題外話,小峰兄有沒有熟的SBC/IPC vendor啊:confused: ....鵝之前要幫sponsor搞客製化的SBC,好不容易把design house trainning的差不多了(兜出個鵝還算可以接受的可行性評估/layout草圖/spec等等過來:p),不過其卻報了個天價過來,害鵝有點兩面不是人:ase:ase.... PS:若小峰兄不方便回在板上的話請直接pm給鵝:p.... |
鵝再來貼個R牌8169好了,client是Celeron 2.4D+512MB DDR400(不過限於CPU實際上是跑DDR266),server一樣是AM2的Sempron3000+2GB DDRII667+MCP51內建的GbE(PHY也是Marvell的),不過這次server是跑XP(為了開Jumbo Frame/off loading等功能:p)....
default只開rx off loading,沒開Jumbo Frame.... root@lab01:~# ethtool -k eth1 Offload parameters for eth1: rx-checksumming: on tx-checksumming: off scatter-gather: off tcp segmentation offload: off root@lab01:~# time iperf -c 192.168.10.115 ------------------------------------------------------------ Client connecting to 192.168.10.115, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.10.110 port 36782 connected with 192.168.10.115 port 5001 [ 5] 0.0-10.0 sec 723 MBytes 607 Mbits/sec real 0m10.034s user 0m0.112s sys 0m4.068s throughput約607Mbps,CPU loading約40%.... 同上,開10個connection root@lab01:~# time iperf -c 192.168.10.115 -P10 connect failed: Connection refused write1 failed: Broken pipe connect failed: Connection refused write1 failed: Broken pipe connect failed: Connection refused write1 failed: Broken pipe connect failed: Connection refused write1 failed: Broken pipe ------------------------------------------------------------ Client connecting to 192.168.10.115, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ write2 failed: Broken pipe write2 failed: Broken pipe write2 failed: Broken pipe write2 failed: Broken pipe [ 9] local 192.168.10.110 port 45776 connected with 192.168.10.115 port 5001 [ 5] local 192.168.10.110 port 45772 connected with 192.168.10.115 port 5001 [ 6] local 192.168.10.110 port 45773 connected with 192.168.10.115 port 5001 [ 7] local 192.168.10.110 port 45774 connected with 192.168.10.115 port 5001 [ 8] local 192.168.10.110 port 45775 connected with 192.168.10.115 port 5001 [ 10] local 192.168.10.110 port 45777 connected with 192.168.10.115 port 5001 [ 11] local 0.0.0.0 port 45778 connected with 192.168.10.115 port 5001 [ 11] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 12] local 0.0.0.0 port 45779 connected with 192.168.10.115 port 5001 [ 12] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 13] local 0.0.0.0 port 45780 connected with 192.168.10.115 port 5001 [ 13] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 14] local 0.0.0.0 port 45781 connected with 192.168.10.115 port 5001 [ 14] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 5] 0.0-10.0 sec 123 MBytes 103 Mbits/sec [ 6] 0.0-10.0 sec 123 MBytes 103 Mbits/sec [ 7] 0.0-10.0 sec 123 MBytes 103 Mbits/sec [ 8] 0.0-10.0 sec 123 MBytes 104 Mbits/sec [ 10] 0.0-10.0 sec 123 MBytes 103 Mbits/sec [ 9] 0.0-10.0 sec 124 MBytes 104 Mbits/sec [SUM] 0.0-10.0 sec 740 MBytes 621 Mbits/sec real 0m10.023s user 0m0.196s sys 0m5.932s throughput沒太大變動,但CPU load由40%上升到60%(約50%:eek: )....BTW,出現write2 failed不知是鵝的XP沒hack過(10個connection的限制)亦或是真跑不動了:p.... 開一個connection,off loading全開,MTU設成7200(linux kernel driver中R牌support的最大值).... root@lab01:~# ethtool -k eth1 Offload parameters for eth1: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: on root@lab01:~# time iperf -c 192.168.10.115 ------------------------------------------------------------ Client connecting to 192.168.10.115, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.10.110 port 46567 connected with 192.168.10.115 port 5001 [ 5] 0.0-10.0 sec 790 MBytes 663 Mbits/sec real 0m10.019s user 0m0.084s sys 0m2.696s throughput由607Mbps上升到663Mbps(約10%),CPU loading由40%下降至27%(約33%).... 同上,開10個connection.... root@lab01:~# time iperf -c 192.168.10.115 -P10 connect failed: Connection refused write1 failed: Broken pipe connect failed: Connection refused write1 failed: Broken pipe ------------------------------------------------------------ Client connecting to 192.168.10.115, TCP port 5001 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ write2 failed: Broken pipe write2 failed: Broken pipe [ 6] local 192.168.10.110 port 46193 connected with 192.168.10.115 port 5001 [ 7] local 192.168.10.110 port 46194 connected with 192.168.10.115 port 5001 [ 8] local 192.168.10.110 port 46195 connected with 192.168.10.115 port 5001 [ 9] local 192.168.10.110 port 46196 connected with 192.168.10.115 port 5001 [ 11] local 192.168.10.110 port 46198 connected with 192.168.10.115 port 5001 [ 12] local 192.168.10.110 port 46199 connected with 192.168.10.115 port 5001 [ 13] local 0.0.0.0 port 46200 connected with 192.168.10.115 port 5001 [ 13] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 14] local 0.0.0.0 port 46201 connected with 192.168.10.115 port 5001 [ 14] 0.0- 0.0 sec 0.00 Bytes 0.00 bits/sec [ 10] local 192.168.10.110 port 46197 connected with 192.168.10.115 port 5001 [ 5] local 192.168.10.110 port 46192 connected with 192.168.10.115 port 5001 [ 7] 0.0- 7.0 sec 70.4 MBytes 84.3 Mbits/sec [ 8] 0.0- 7.0 sec 70.1 MBytes 83.9 Mbits/sec [ 11] 0.0- 7.0 sec 70.4 MBytes 84.2 Mbits/sec [ 9] 0.0- 7.0 sec 70.4 MBytes 84.2 Mbits/sec [ 12] 0.0- 7.0 sec 70.4 MBytes 84.1 Mbits/sec [ 10] 0.0- 7.0 sec 70.3 MBytes 84.0 Mbits/sec [ 6] 0.0-10.0 sec 189 MBytes 159 Mbits/sec [ 5] 0.0-10.0 sec 189 MBytes 158 Mbits/sec [SUM] 0.0-10.0 sec 800 MBytes 671 Mbits/sec real 0m13.015s user 0m0.144s sys 0m2.896s throughput與CPU loading都與off loading全開,MTU設成7200時約略相當.... 由以上不太精確的測試,大致上可以得出Jumbo Frame/off loading不論對throughput或CPU loading而言的確有些助益的結果吧:p:p.... |
cmwang大當初在pczone貼這個需求的時候我有看到,小弟沒有特別熟的,不過之前有想要做自己的機器,有整理過ipc廠商資料,晚一點小弟pm給您.
另外其他的朋友,比較win跟linux的環境會比較不客觀,小弟會建議在同樣的平台比較同一張卡會比較準確. |
我想請問一下 這台hub是不是很燙阿 我買來就燙到手不太能摸
才買不到一周 |
非常抱歉我回錯文了..........我眼花...........打攪了/ \
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沒關係的 順便回答您的問題 gigabit的交換器大多很燙 不過只要不會熱當都是不需要介意的.
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不知道有沒有大大跑過這一顆 Switch
http://jokera.mrs3.com/pg/thumbnail...m=topn&cat=-317 看起來蠻划算的(網拍約 1.5k). 不知道有啥缺點. 1. Asus 2. MIT 3. 20GBps 4. 8Ports 5. 9k Jumbo Frame 唯一缺點: 引用:
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看起來是不錯啦!!不過網路設備這種東西還是要用了才知道.尤其華碩品質.....後面的讓其他人回答.
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