Re: apachebench not increasing troughput

[Jan Klopper <janklopper@xxxxxxxxx>]

Mack,

The director is indeed not forwarding ssh (22), (is use it see if any 
other server than the director has taken over the VIP,  (failing noarp, 
failvoer to secundary director etc) Saves me on finding out to which mac 
address the packes for VIP go to.
How can i check for persistent connctions on the server side?
AB lets me choose wheter or not it should use keepalive connections. 
(-k   Use HTTP KeepAlive feature)
If i don;t use it i get 570 pages/sec.
If i do use it, i get aprox 1500 pages/sec.

I have a troughput of 400Kbytes per sec, will test packages soon. (need 
to let my head/ears rest from the machines buzzing next to me :P )
The requested pages are extremely small (13 bytes), but there might be 
whole lot of http/tcp overhead involved which is not counted inside tht 
400Kbytes per seccond  amount.
Thanks a lot.

Greets
Jan

Mack.Joseph@xxxxxxxxxxxxxxx wrote:

> Joseph Mack PhD, High Performance Computing & Scientific Visualisation
> LMIT, Supporting the EPA Research Triangle Park, NC 919-541-0007
> Federal Contact - John B. Smith 919-541-1087 - smith.john@xxxxxxx
>
> lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx wrote on 03/01/2005 06:05:17
> AM:
>
>
>  
>
> > From the client i can connect with ssh to the VIP (gives
> > me the active director)
> >    
> I take it that the director is not forwarding ssh?
>
>
>  
>
> > From the client i can browse to the VIP gives me semi
> > random, (altough usually the same) realserver.
> >    
> Is apache making persistent connections?
>
>  
>
> > When i do a AB (apachebench) from the client to each of
> > the rip's i get aprox 560 pages/sec.
> > When i do a AB from the client to the VIP, i get almost
> > the same. (560 pages/sec)
> >
> > When i ab the VIP, i see the load rising on all servers.
> > (and see apache processes in top)
> >
> > When i use persistent connections i get 3 times more pages/sec.
> >
> > I have a troughput of 460Kbytes/sec.
> >    
> The important measure is the number of packets/sec - see the performance
> section of the HOWTO. Your network could be the bottleneck if the
> packets are small.
>
> Joe
>
>
>
>