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linux - iperf3 Windows带宽比linux慢很多

转载 作者:可可西里 更新时间:2023-11-01 09:36:37 25 4
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我遇到了一个很奇怪的问题。我有 2 台服务器,一台运行 redhat Linux server 7 64 位,另一台运行 Windows server 2012 64 位。两种服务器硬件规范完全相同:

Xeon 2.6Ghz CPU x 2, total 32 logical core
96GB ddr4 memory
1Gb dual port network card
2TB hard disk, the RAID configuration is also same.

当我在两台机器上运行 iperf3 时,结果非常不同。在 Linux 上,结果是:**

$iperf3 -s

$iperf3 -c localhost
Connecting to host localhost, port 5201
[ 4] local ::1 port 46996 connected to ::1 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 4.29 GBytes 36.9 Gbits/sec 0 703 KBytes
[ 4] 1.00-2.00 sec 4.75 GBytes 40.8 Gbits/sec 0 703 KBytes
[ 4] 2.00-3.00 sec 4.66 GBytes 40.0 Gbits/sec 0 767 KBytes
[ 4] 3.00-4.00 sec 4.67 GBytes 40.1 Gbits/sec 0 767 KBytes
[ 4] 4.00-5.00 sec 4.49 GBytes 38.6 Gbits/sec 0 1.37 MBytes
[ 4] 5.00-6.00 sec 4.57 GBytes 39.3 Gbits/sec 0 1.37 MBytes
[ 4] 6.00-7.00 sec 4.54 GBytes 39.0 Gbits/sec 0 1.37 MBytes
[ 4] 7.00-8.00 sec 4.68 GBytes 40.2 Gbits/sec 0 1.37 MBytes
[ 4] 8.00-9.00 sec 4.75 GBytes 40.8 Gbits/sec 0 1.37 MBytes
[ 4] 9.00-10.00 sec 4.60 GBytes 39.6 Gbits/sec 0 1.37 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 46.0 GBytes 39.5 Gbits/sec 0 sender
[ 4] 0.00-10.00 sec 46.0 GBytes 39.5 Gbits/sec receiver

在 Windows 上,结果是:**

iperf3.exe -s

iperf3.exe -c localhost
Connecting to host localhost, port 5201
[ 4] local ::1 port 11042 connected to ::1 port 5201
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-1.00 sec 477 MBytes 4.00 Gbits/sec
[ 4] 1.00-2.00 sec 486 MBytes 4.08 Gbits/sec
[ 4] 2.00-3.00 sec 555 MBytes 4.66 Gbits/sec
[ 4] 3.00-4.00 sec 569 MBytes 4.77 Gbits/sec
[ 4] 4.00-5.00 sec 571 MBytes 4.79 Gbits/sec
[ 4] 5.00-6.00 sec 584 MBytes 4.90 Gbits/sec
[ 4] 6.00-7.00 sec 590 MBytes 4.95 Gbits/sec
[ 4] 7.00-8.00 sec 590 MBytes 4.95 Gbits/sec
[ 4] 8.00-9.00 sec 599 MBytes 5.03 Gbits/sec
[ 4] 9.00-10.00 sec 598 MBytes 5.01 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 4] 0.00-10.00 sec 5.49 GBytes 4.71 Gbits/sec sender
[ 4] 0.00-10.00 sec 5.49 GBytes 4.71 Gbits/sec receiver

iperf Done.

为什么 Windows 这么慢?有人有同样的问题吗?
如何提高 Windows 带宽性能?

这种行为对我的项目影响极大,同样的套接字代码,Windows 的吞吐量只有 Linux 的 1/3。

非常感谢。

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