請問switch hub / 網卡 都支援Gigabit的狀況下,網路限用cat 5e 效能可以達到多少?tks
 

請問switch hub / 網卡 都支援Gigabit的狀況下,網路限用cat 5e 效能可以達到多少?tks

您可參考小弟這篇

http://www.pcdvd.com.tw/showthread.php?t=506287

基本上網卡跟硬碟是關鍵....

剛好之前有做實際Test.
Acer小狗機 <-> IBM T41 (Broadcom <-> Intel 1000MT Mobile??) 以Cat5E直連約600Mb
Acer小狗機 <-> HP NC4010 (Broadcom <-> Broadcom) 以Cat5E直連約420Mb
Giga Switch hub有接沒接都差不多
以上為iperf測試,時間為一小時平均值
看看這周末來不來得及玩到Intel 1000MT Server adapter...(之前買了一塊,結果有問題..)
這樣就能配合另一臺有Giga網卡的(好像是Marvell的)同時在某臺Giga switch hub亂鬥 XD
(當然,絕對不是CISCO...也不是Dlink..是更便宜的ASUS,而且好像造成Intel網卡合併工作上有問題..)
另外題外話,在用iperf測試時,我的小狗機CPU Loading是100%,IBM T41則只有60%上下...
不論誰是Server或Client端..(就看著小狗機CPU溫度高到82度C....)

記得BCM跑Gigabit蠻慘的....
排名可能比螃蟹還後面....

CPU使用率高也不足為奇了

囧rz
看來BCM5705M(HP NC4010)跟BCM5788(Acer 3002WTMi)都是降低成本後的結果 :jolin:
沒關係,比硬碟寫入速度快就好 :cry:

Dear all:

今天剛裝好一台新Desktop，上頭有內建 Gigabit 網路介面，就隨手拿 iperf 測試了一下，有興趣的可以參考一下。

Desktop 上網路chip 用的是 Intel 82566DM 晶片
Server 上網路 chip 用的是 Marcell Yukon 88E8056 晶片

網路線是前年鋪的，應該只有 CAT.5 (可能連5e都不是)；
中間經過兩個 SWITCH，都是 DLINK 的；另外 Server <-> Client 走線大概有10~20m 距離

參數 iperf -c 192.168.0.9 -i 60 -t 120 -P 10

------------------------------------------------------------
Client connecting to 192.168.0.9, TCP port 5001
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[732] local 192.168.0.1 port 1834 connected with 192.168.0.9 port 5001
[860] local 192.168.0.1 port 1826 connected with 192.168.0.9 port 5001
[828] local 192.168.0.1 port 1828 connected with 192.168.0.9 port 5001
[796] local 192.168.0.1 port 1830 connected with 192.168.0.9 port 5001
[764] local 192.168.0.1 port 1832 connected with 192.168.0.9 port 5001
[876] local 192.168.0.1 port 1825 connected with 192.168.0.9 port 5001
[844] local 192.168.0.1 port 1827 connected with 192.168.0.9 port 5001
[812] local 192.168.0.1 port 1829 connected with 192.168.0.9 port 5001
[780] local 192.168.0.1 port 1831 connected with 192.168.0.9 port 5001
[748] local 192.168.0.1 port 1833 connected with 192.168.0.9 port 5001
[ ID] Interval Transfer Bandwidth
[876] 0.0-60.0 sec 682 MBytes 95.3 Mbits/sec
[796] 0.0-60.0 sec 663 MBytes 92.7 Mbits/sec
[844] 0.0-60.0 sec 681 MBytes 95.3 Mbits/sec
[780] 0.0-60.0 sec 681 MBytes 95.2 Mbits/sec
[828] 0.0-60.0 sec 662 MBytes 92.6 Mbits/sec
[748] 0.0-60.0 sec 681 MBytes 95.3 Mbits/sec
[812] 0.0-60.0 sec 681 MBytes 95.2 Mbits/sec
[860] 0.0-60.0 sec 662 MBytes 92.6 Mbits/sec
[764] 0.0-60.0 sec 663 MBytes 92.6 Mbits/sec
[732] 0.0-60.0 sec 663 MBytes 92.7 Mbits/sec
[SUM] 0.0-60.0 sec 6.56 GBytes 940 Mbits/sec
[860] 60.0-120.0 sec 663 MBytes 92.6 Mbits/sec
[764] 60.0-120.0 sec 663 MBytes 92.7 Mbits/sec
[876] 60.0-120.0 sec 681 MBytes 95.2 Mbits/sec
[748] 60.0-120.0 sec 681 MBytes 95.2 Mbits/sec
[844] 60.0-120.0 sec 681 MBytes 95.3 Mbits/sec
[796] 60.0-120.0 sec 663 MBytes 92.7 Mbits/sec
[828] 60.0-120.0 sec 662 MBytes 92.6 Mbits/sec
[732] 60.0-120.0 sec 663 MBytes 92.6 Mbits/sec
[812] 60.0-120.0 sec 682 MBytes 95.3 Mbits/sec
[ ID] Interval Transfer Bandwidth
[780] 60.0-120.0 sec 681 MBytes 95.3 Mbits/sec
[SUM] 60.0-120.0 sec 6.56 GBytes 940 Mbits/sec
[764] 0.0-120.0 sec 1.29 GBytes 92.7 Mbits/sec
[860] 0.0-120.0 sec 1.29 GBytes 92.6 Mbits/sec
[876] 0.0-120.0 sec 1.33 GBytes 95.3 Mbits/sec
[828] 0.0-120.0 sec 1.29 GBytes 92.6 Mbits/sec
[796] 0.0-120.0 sec 1.30 GBytes 92.7 Mbits/sec
[732] 0.0-120.0 sec 1.29 GBytes 92.7 Mbits/sec
[748] 0.0-120.0 sec 1.33 GBytes 95.2 Mbits/sec
[844] 0.0-120.0 sec 1.33 GBytes 95.3 Mbits/sec
[780] 0.0-120.0 sec 1.33 GBytes 95.2 Mbits/sec
[812] 0.0-120.0 sec 1.33 GBytes 95.3 Mbits/sec
[SUM] 0.0-120.0 sec 13.1 GBytes 939 Mbits/sec

cat.5的線只能有100M的傳輸速度.......這樣的結果也是可想而知

9xMbps是單一connection的throughput,樓上的網友開了10個connection,所以總throughput是9xxMbps:flash: ....BTW,如果Cat5的線/接頭品質沒有問題的話(主要是要真有4對線而非只有兩對線:ase),短時間拿Cat5測出來的throughput其實和Cat5e是差不了多少,只是長期而言就沒人有把握了:p:p....

用cat6應該會好一點