Re: Problem Report: Question about FETCH_PROBABILITY behavior.

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

Hi David,

On Wed, Jan 28, 2009 at 1:05 AM, David Hotchkiss <dho...@is...>wrote:

> Hi Robert,
>
> Thanks for your quick response.  Per your suggestion, I slightly
> modified './conf-examples/fetch-probability.conf' as follows:
> =-=-=-=
>  ########### GENERAL SECTION ################################
>
>  BATCH_NAME= fetch-prob
>  CLIENTS_NUM_MAX=5
>   INTERFACE   =eth0
>  NETMASK=255.255.240.0
>  IP_ADDR_MIN= 10.56.1.1
>  IP_ADDR_MAX= 10.56.15.254
>   CYCLES_NUM= 100
>  URLS_NUM= 2
>
>  ########### URL SECTION ####################################
>
>  URL=http://localhost:8080/index.html
>  URL_SHORT_NAME="local"
>  REQUEST_TYPE=GET
>  TIMER_URL_COMPLETION = 0
>  TIMER_AFTER_URL_SLEEP = 1000
>  FETCH_PROBABILITY = 70
>
>  URL=http://localhost:8080/one.html
>   URL_SHORT_NAME="ACE"
>  REQUEST_TYPE=GET
>  TIMER_URL_COMPLETION = 0
>  TIMER_AFTER_URL_SLEEP = 1000
>  FETCH_PROBABILITY = 30
> =-=-=-=
>
> With five clients and 100 cycles, I would expect that out of a potential
> 500 requests for each URL that the actual requests made during a curl-
> loader run would be something like this:
>
>   URL:local ~350 total requests ( (5 clients * 100 cycles) * 0.7)
>   URL:ACE   ~150 total requests ( (5 clients * 100 cycles) * 0.3)
>
> Here are the results from three different runs:
>
> 1)
> Test total duration was 62 seconds and CAPS average 2:
> H/F   Req:309,1xx:0,2xx:309,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:1ms,D-2xx:1ms,Ti:1362B/s,To:627B/s
> H/F/S Req:0,1xx:0,2xx:0,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:0ms,D-2xx:0ms,Ti:0B/s,To:0B/s
>  Operations:     Success       Failed     Timed out
> URL0:local      6      132    0      0    0      0
> URL1:ACE        8      177    0      0    0      0
>
> 2)
> Test total duration was 69 seconds and CAPS average 1:
> H/F   Req:343,1xx:0,2xx:343,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:1ms,D-2xx:1ms,Ti:1360B/s,To:625B/s
> H/F/S Req:0,1xx:0,2xx:0,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:0ms,D-2xx:0ms,Ti:0B/s,To:0B/s
>  Operations:     Success       Failed     Timed out
> URL0:local      0      134    0      0    0      0
> URL1:ACE        3      209    0      0    0      0
>
> 3)
> Test total duration was 77 seconds and CAPS average 2:
> H/F   Req:382,1xx:0,2xx:382,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:1ms,D-2xx:1ms,Ti:1356B/s,To:624B/s
> H/F/S Req:0,1xx:0,2xx:0,3xx:0,4xx:0,5xx:0,Err:0,T-
> Err:0,D:0ms,D-2xx:0ms,Ti:0B/s,To:0B/s
>  Operations:     Success       Failed     Timed out
> URL0:local      5      168    0      0    0      0
> URL1:ACE        7      214    0      0    0      0
>
> As you can see, the outcomes are significantly different from what I
> expected.
>
> Can you help shed some light on what is going on? Is the error in my
> expectations, the configuration, or curl-loader?
>
> Thanks,
>
>  //david
>


Looks like something may be broken in this version of curl-loader.
Can you try some earlier varsion, e.g. curl-loader stable?
Thanks.

-- 
Truly,
Robert Iakobashvili, Ph.D.
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Assistive technology that understands you
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