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Posted to users@tomcat.apache.org by Leon Rosenberg <ro...@googlemail.com> on 2008/07/02 23:16:46 UTC
[OT] Performance Requirements
Hi all,
recently I was asked by someone to define performance requirements for
a site without even knowing it (the site).
The task was to deliver standard requirements valid for most sites (or
portal-like sites).
I answered that it's probably impossible without knowing the type of
media delivered, whether its web 2.0 or 1.0, and so on...
but I think as long as the webserver starts delivering content in
between 50 and 100 ms (measured at webserver) the site should be ok.
What do you think could be the site-independent performance criterion?
best regards
Leon
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Re: [OT] Performance Requirements
Posted by "Frank W. Zammetti" <fz...@omnytex.com>.
It might be a little simplistic, but we've always used a simple "100
user" metric: if we can simulate 100 simultaneous users on a site, or
webapp (in the sense of RIAs) and all the responses across the app come
back in reasonable times (which you can define variably as you see fit),
then we generally view that as good performance. Your 50-100ms response
time seems pretty reasonable... we usually tend to say something like
500ms AVERAGE across ALL requests aggregated from all virtual users ,
with none exceeding about a second. This is again pretty simplistic,
but it allows for a few things that take longer quite naturally to be
factored in and still ensure pretty reasonable performance across the board.
Frank
--
Frank W. Zammetti
Author of "Practical DWR 2 Projects"
and "Practical JavaScript, DOM Scripting and Ajax Projects"
and "Practical Ajax Projects With Java Technology"
for info: apress.com/book/search?searchterm=zammetti&act=search
Java Web Parts - javawebparts.sourceforge.net
Supplying the wheel, so you don't have to reinvent it!
My "look ma, I have a blog too!" blog: zammetti.com/blog
Leon Rosenberg wrote:
> Hi all,
>
> recently I was asked by someone to define performance requirements for
> a site without even knowing it (the site).
> The task was to deliver standard requirements valid for most sites (or
> portal-like sites).
> I answered that it's probably impossible without knowing the type of
> media delivered, whether its web 2.0 or 1.0, and so on...
> but I think as long as the webserver starts delivering content in
> between 50 and 100 ms (measured at webserver) the site should be ok.
>
> What do you think could be the site-independent performance criterion?
>
> best regards
> Leon
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
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Re: [OT] Performance Requirements
Posted by Leon Rosenberg <ro...@googlemail.com>.
Thank you all for the answers and please apologize my late answer, my
family obligated me to a 10 day vacation without internet...
I added Franks recommendation (mainly because it was the first to come
:-)) to my recommendations to the client, and we both thought them
reasonable... However, now he (the client) wants to serve large video
files and the whole questionnaire becomes somehow nonsensical.
Nevertheless thanx very much for the replies.
Leon
On Thu, Jul 3, 2008 at 3:11 PM, Peter Lin <wo...@gmail.com> wrote:
> there's plenty of papers on the topic on the internet, including the
> ones listed on tomcat's website.
>
> have you looked at the resource page?
>
> http://tomcat.apache.org/resources.html
>
> On Thu, Jul 3, 2008 at 9:05 AM, Filip Hanik - Dev Lists
> <de...@hanik.com> wrote:
>> there is one criteria that I always use, and that is "user response time"
>> this can work for almost any webapp that has some sort of "real" user in
>> front of it.
>> 50 to 100ms would be excellent and very aggressive, but it depends on the
>> app itself of course.
>> 2-3 seconds for a complete page load is desirable
>>
>> Filip
>>
>> Leon Rosenberg wrote:
>>>
>>> Hi all,
>>>
>>> recently I was asked by someone to define performance requirements for
>>> a site without even knowing it (the site).
>>> The task was to deliver standard requirements valid for most sites (or
>>> portal-like sites).
>>> I answered that it's probably impossible without knowing the type of
>>> media delivered, whether its web 2.0 or 1.0, and so on...
>>> but I think as long as the webserver starts delivering content in
>>> between 50 and 100 ms (measured at webserver) the site should be ok.
>>>
>>> What do you think could be the site-independent performance criterion?
>>>
>>> best regards
>>> Leon
>>>
>>> ---------------------------------------------------------------------
>>> To start a new topic, e-mail: users@tomcat.apache.org
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>>
>>
>>
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>>
>>
>
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>
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Re: [OT] Performance Requirements
Posted by Peter Lin <wo...@gmail.com>.
there's plenty of papers on the topic on the internet, including the
ones listed on tomcat's website.
have you looked at the resource page?
http://tomcat.apache.org/resources.html
On Thu, Jul 3, 2008 at 9:05 AM, Filip Hanik - Dev Lists
<de...@hanik.com> wrote:
> there is one criteria that I always use, and that is "user response time"
> this can work for almost any webapp that has some sort of "real" user in
> front of it.
> 50 to 100ms would be excellent and very aggressive, but it depends on the
> app itself of course.
> 2-3 seconds for a complete page load is desirable
>
> Filip
>
> Leon Rosenberg wrote:
>>
>> Hi all,
>>
>> recently I was asked by someone to define performance requirements for
>> a site without even knowing it (the site).
>> The task was to deliver standard requirements valid for most sites (or
>> portal-like sites).
>> I answered that it's probably impossible without knowing the type of
>> media delivered, whether its web 2.0 or 1.0, and so on...
>> but I think as long as the webserver starts delivering content in
>> between 50 and 100 ms (measured at webserver) the site should be ok.
>>
>> What do you think could be the site-independent performance criterion?
>>
>> best regards
>> Leon
>>
>> ---------------------------------------------------------------------
>> To start a new topic, e-mail: users@tomcat.apache.org
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>>
>
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
>
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Re: [OT] Performance Requirements
Posted by Filip Hanik - Dev Lists <de...@hanik.com>.
there is one criteria that I always use, and that is "user response time"
this can work for almost any webapp that has some sort of "real" user in
front of it.
50 to 100ms would be excellent and very aggressive, but it depends on
the app itself of course.
2-3 seconds for a complete page load is desirable
Filip
Leon Rosenberg wrote:
> Hi all,
>
> recently I was asked by someone to define performance requirements for
> a site without even knowing it (the site).
> The task was to deliver standard requirements valid for most sites (or
> portal-like sites).
> I answered that it's probably impossible without knowing the type of
> media delivered, whether its web 2.0 or 1.0, and so on...
> but I think as long as the webserver starts delivering content in
> between 50 and 100 ms (measured at webserver) the site should be ok.
>
> What do you think could be the site-independent performance criterion?
>
> best regards
> Leon
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
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