Re: Curlloader queries

[Robert I. <cor...@gm...>]

Hi Sridhar,

On Tue, Oct 28, 2008 at 9:32 AM, Sridhar Gundubogula <
sri...@re...> wrote:

>   Hi All,
>
> When i was doing some research on open source projects that could replace
> Ixload to generate and simulate HTTP traffic on the client machine to
> connect to Apache webserver and report the results
>

I would recommend ngnix web-server as much more powerful.


>   I found curl-loader an interesting tool to start and explore to
> replicate my test scenario what i was trying to do on Ixiaload. Im
> interested in using this tool so I played around config file to generate
> Http traffic to test number of connections to fetch couple of urls from
> Webserver which resulted me in posing few questions in mind towards its
> operation with my conf file below:
>
> ########### GENERAL SECTION ################################
>
> BATCH_NAME= http
>
> CLIENTS_NUM_MAX=1000 # Same as CLIENTS_NUM
>
> #CLIENTS_NUM_START=1
>
> #CLIENTS_RAMPUP_INC=1
>
> INTERFACE=eth2a
>
> NETMASK=24
>
> IP_ADDR_MIN= 10.10.1.101
>
> IP_ADDR_MAX= 10.10.1.101 #Actually - this is for self-control
>
> CYCLES_NUM=1
>
> URLS_NUM=1
>
> ########### URL SECTION ####################################
>
> URL=http://192.168.10.x/4k.html
>
> #URL=http://192.168.10.y/index1.html
>
> #URL=https://localhost/apache2-default/ACE-INSTALL.html
>
> #URL=https://localhost/ACE-INSTALL.html
>
> URL_SHORT_NAME="url-http"
>
> REQUEST_TYPE=GET
>
> TIMER_URL_COMPLETION =0 # In msec. When positive, Now it is enforced by
> cancelli
>
> ng url fetch on timeout
>
> 1. Can I make 1000 connections/sec with one client ?
>
> So am I following the right way inorder to achieve what im trying to
> accomplish as defined with question 1.
>
One client means a one HTTP client with all TCP amd HTTP communication,
server delay, server
application logic, etc.

Normally one HTTP client depending on your server and server application
logic can make 10-20 cycles
per second.

For your purpose you'll need 100-200 clients.



>   2. what are the factors or criteria that lets curl-loader knows when to
> stop the test.?
>
> The reason I asked above question is trying to uderstand whether
> curl-loader could successfully establish 1000 connections in a second if not
> how to varies it connection rate?
>
It makes either CYCLES_NUM number of cycles, if that a positive value, or
when
negative it runs till you stop it by Control-C


>   What is the role of interval option -i in determining the connection
> rate.
>
> 3. when i look at the results what does Success really indicates from left
> and right column?
>
> For example, what does 151 1000 means under the Sucess column in results
> file.
>
>
>
> I appreciate answers for the above questions that will help me in making
> progress towards using this tool and making enhancements that fits to my
> test requirements. Please let me know if any additional details are
> required that would help me in assisting.
>
>
>
The questions are appearing in FAQS, therefore, please,
read them at e.g.:

http://curl-loader.sourceforge.net/doc/faq.html

Take care,
Robert