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.TH ib_write_lat 1 "February 20, 2008" "perftest" "User Commands"

.SH NAME
ib_write_lat \- RDMA write latency test

.SH SYNOPSIS
.B ib_write_lat  [
.I options 
.B ] [
.I server IP address 
.B ]

.SH DESCRIPTION 
This program tests the latency  of RMDA write transactions.

.SH OPTIONS
.TP  
.B -p, --port=<port>            
listen on/connect to port <port> (default: 18515)
.TP 
.B -m, --mtu=<mtu>              
mtu size (default: 1024)
.TP  
.B -d, --ib-dev=<dev>           
use IB device <dev> (default: first device found)
.TP  
.B -i, --ib-port=<port>         
use port <port> of IB device (default: 1)
.TP 
.B -s, --size=<size>            
size of message to exchange (default: 1)
.TP
.B -a, --all                    
run sizes from 2 till 2^23
.TP 
.B -t, --tx-depth=<dep>         
size of tx queue (default: 50)
.TP 
.B -n, --iters=<iters>          
number of exchanges (at least 100, default: 1000)
.TP 
.B -C, --report-cycles          
report times in cpu cycle units (default: microseconds)
.TP 
.B -H, --report-histogram       
print out all results (default: print summary only)
.TP 
.B -U, --report-unsorted        
(implies -H) print out unsorted results (default: sorted)
.TP
.B -V, --version                
display version number


.SH AUTHOR
.TP
Guy Coates  < gmpc@sanger.ac.uk >