Справочник Пользователя для Q-Logic 3000

7–Windows Server 2003, 2008, and 2008 R2 Driver Configuration

Windows Server 2003 Performance

NE0154601-00  B

7-15

For the receive side, the optimal value is 16 for -a and 512,000 for -rb (or 

something similar). With these values, a single thread should perform closer to a 
multi-thread configuration. From a DOS command prompt, type the following 
command. Note that the command must be executed from the same directory in 
which the executable files are located.

ntttcpr -m 16,0,<rcv ipaddr> -n <# of tcp segs for snd/rcv> -a 16

For the transmit side, -a should be a value less than eight. The more threads, the 

lower the value.

The ntttcps and ntttcpr command line options are listed in 

The send (transmit) and receive side ntttcp commands must use the 

receive side’s IP address.

-l <length of buffer>

64K

—

-n <number of buffers>

20K

—

-p <port base>

5001

—

-a <outstanding I/O>

2

—

-x <packet array size>

1

—

-rb <receive buffer size>

64K

—

-sb <send buffer size>

0

—

-i 

—

Infinite loop

-f <file name>

output.txt

—

-u

—

UDP send/receive

-w

—

—

-d

—

Verify flag

-t <runtime>

—

Runtime is in seconds.

-v

—

Enable verbose mode.

-6

—

Enable IPv6 mode.