on 12/21/2000 2:04 PM, "Craig R. McClanahan" <[EMAIL PROTECTED]>
wrote:
> Jon Stevens wrote:
>
>> Ok, I put a whole bunch of logging into Turbine to see *exactly* what line
>> of code is causing the slowness that I keep reporting here and I have now
>> found it...
>>
>> Log.note ("RunDataFactory: 11");
>> // Get the HttpSession object.
>> data.setSession ( data.getRequest().getSession(true) );
>> Log.note ("RunDataFactory: 12");
>>
>> As you can see above, essentially, all that is happening is that I'm storing
>> an instance of the HttpSession object within the RunData object. Marking
>> things as "true" causes the redirect to happen, so there is another
>> request...
>>
>> [Thu Dec 21 13:34:15 PST 2000] -- NOTICE -- RunDataFactory: 11
>> [Thu Dec 21 13:35:01 PST 2000] -- NOTICE -- RunDataFactory: 12
>>
>
> This is the first session create since the webapp was started, right?
> Currently, that is when the RNG is initialized.
Right.
>> ...
>> [Thu Dec 21 13:35:03 PST 2000] -- NOTICE -- RunDataFactory: 11
>> [Thu Dec 21 13:35:03 PST 2000] -- NOTICE -- RunDataFactory: 12
>>
>
> And this is the behavior you would see after the first one.
As expected. :-)
>>
>> As you can see above the first request through this code takes bloody
>> FOREVER and the second one is quite fast.
>>
>> The really *INSANE* part about all of this is that people have checked
>> Scarab out of CVS themselves on the SAME JVM (1.3 on Windows) and don't see
>> any real slowness at all (approx 4-5 seconds).
>>
>
> That's definitely strange ... 4-5 seconds is my experience even on much slower
> hardware, on both 1.2.2 and 1.3.
I can deal with 4-5 seconds although that is a bit long as well. Is this
code re-executed when the classloader is dumped as well? If not I can deal
more with this 4-5 seconds. If so, then I think that 4-5 seconds is to slow
as well and we should find another RNG solution.
>> So, Craig, can we please try to do something about this? There has got to be
>> something wrong with either my setup or something else (I really don't think
>> this is entirely a classloader issue anymore). I also have this great
>> slowdown on MacOSX as well.
>>
>
> This part isn't. Aleady on my TODO list is moving the RNG initialization to
> webapp startup time -- that will normally hide it for a 4-5 second delay, but
> certainly won't fix a 45-second delay.
A 45 second startup time? GAG!
>> If you want to duplicate it, you can check Scarab out of CVS and do it
>> yourself. I have re-done the CVS tree and it is very easy to get things up
>> and running (even without a database installed...just ignore that part of
>> the README.txt file).
>>
>> <http://scarab.tigris.org/>
>>
>
> You mean it's not just "check out, compile, and run"??? :-) :-)
>
> Will do.
You don't even have to compile. :-) :-)
cvs co scarab
cd build
./build.sh prepare
cd ../target
./bin/catalina.sh run
<http://localhost:8080/scarab/servlet/scarab>
It is a copy of m5 that is in Scarab's CVS. However, if you read the
README.txt I just checked in documentation that allows you to use a
.ant.properties to specify your own Tomcat installation to use. :-)
-jon
--
Honk if you love peace and quiet.
