gistfile1.txt

#!/bin/sh                                                                             
                                                                                      
set -e                                                                                
                                                                                      
. /usr/tests/sys/common/vnet.subr                                                     
                                                                                      
create_jail()                                                                         
{                                                                                     
        addr=$1                                                                       
        jailname=zeist-${addr}                                                        
                                                                                      
        epair=$(vnet_mkepair)                                                         
                                                                                      
        vnet_mkjail $jailname ${epair}b                                               
        jexec $jailname ifconfig ${epair}b 192.0.${addr}.2/24 up                      
                                                                                      
        ifconfig ${epair}a inet 192.168.${addr}.1/24 up                               
                                                                                      
        #sleep 1                                                                      
                                                                                      
        ### stuff to run in a jail once we are ready                                  
        jexec $jailname ifconfig ${epair}b inet 192.168.${addr}.2/24 up               
        jexec $jailname route add default 192.168.${addr}.1 > /dev/null               
                                                                                      
        #jexec $jailname ipfw add 100 pipe 2 ip from any to any                       
        #jexec $jailname ipfw pipe 2 config delay 20ms                                
                                                                                      
        #jexec $jailname ping -q -c 5 192.168.${addr}.1 > result-jailonly-${addr}.txt 
                                                                                      
        # jexec ipfw sh                                                               
                                                                                      
                                                                                      
        jail -r $jailname                                                             
        #sleep 2                                                                      
        ifconfig ${epair}a destroy                                                    
}                                                                                     
                                                                                      
if [ -z $1 ]                                                                          
then                                                                                  
        count=1                                                                       
else                                                                                  
        count=$1                                                                      
fi                                                                                    
                                                                                      
                                                                                      
for y in `jot $count`                                                                 
do                                                                                    
#       echo starting $y jails                                                        
        start=`date +%s`                                                              
        for x in `jot $y`                                                             
        do                                                                            
                create_jail $x &                                                      
        done                                                                          
                                                                                      
        wait                                                                          
        end=`date +%s`                                                                
                                                                                      
        echo $y    $(($end-$start))                                                   
done