users@glassfish.java.net

Re: Serious Performance Problems in GF

From: Jeanfrancois Arcand <Jeanfrancois.Arcand_at_Sun.COM>
Date: Mon, 27 Nov 2006 09:53:41 -0500

Hi David,

can you post me your domain.xml? We didn't see any performance
regressions recently but we never know. One thing I will first try is to
add:

<jvm-options>-Dcom.sun.enterprise.server.ss.ASQuickStartup=false</jvm-options

and see what you are getting. I doubt it will make a difference.

Thanks

-- Jeanfrancois

Jim Driscoll wrote:
> Jeanfrancois does pretty continuous testing for performance. AFAIK, he
> hasn't seen any slowdown. Certainly not an order of magnitude change.
>
> You said that your installation performance changed on b23, without you
> changing any of the underlying code - respectfully, doesn't that sound
> like it's something in your installation? With that in mind, have you
> tried this on a different machine, with a clean install?
>
> Jim
>
> Matthew Pease wrote:
>> I'd really like to know more about this. I am near to making my site
>> live.
>>
>> David... how are you testing??
>>
>> Thank you-
>> Matt
>>
>> On 11/24/06, Eduardo Pelegri-Llopart <pelegri_at_sun.com> wrote:
>>> Hi David. Note that (most of) the USA team is on the Thanksgiving
>>> holiday so you may not get a response until Monday
>>>
>>> David Harrigan wrote:
>>> > Hi,
>>> >
>>> > For the background, please see this:
>>> >
>>> > http://forums.java.net/jive/thread.jspa?threadID=20399&tstart=0
>>> >
>>> > Basically, I'm seeing a x16 difference in my web application under GF
>>> > b23/24/25 compared to Jetty/JRun. The amazingly strange thing is
>>> that b23
>>> > was quick, then it just *got slow*. I didn't change anything, apart
>>> from
>>> > turning off my machine from one day to turning it on the next and
>>> re-running
>>> > the tests...
>>> >
>>> > We are looking to use GF across our company and I need to
>>> understand if this
>>> > is my fault or something very wrong with GF that only appears over
>>> time...
>>> >
>>> > Any help would be appreciated.
>>> >
>>> > -=david=-
>>>
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