[Zope] Threading, dtml and performance?!
Chris McDonough
chrism@zope.com
Wed, 24 Oct 2001 09:11:26 -0400
Maybe you created the method in a subfolder without many peer objects?
It should be created at the root.
Paul Zwarts wrote:
> Well, okay then. I get it. However, since it takes only 80% of 1 second
> to load the page, its difficult to access another page... LOL.
>
> I've tried the reverse now. Pulling a page that does heavy SQL queries
> and then refreshing the speeTest page a few times. Adding some time
> fields, the page only takes .1 second more than before.
>
> I also mention that I built my own mailing list app for our site, and it
> has run against 8000 emails, and still services me or other users on the
> site, even though the bulkmailer takes up to 30 minutes to run fully.
>
> So I guess the result is the same. Solaris has something funny, whereas
> Linux does not.
>
> But as per my first message, I don't think this test works properly
> because the second IN is never executed, so this dtml doesn't actually
> do anything to the server that would distract it or load it down.....
>
> Paul Zwarts
>
> -----Original Message-----
> From: Chris McDonough [mailto:chrism@digicool.com]
> Sent: Wednesday, October 24, 2001 2:24 PM
> To: Paul Zwarts
> Cc: 'Chris McDonough'; 'Tony McDonald'; 'Oliver Erlewein'; zope@zope.org
> Subject: Re: [Zope] Threading, dtml and performance?!
>
> The output of the DTML method isn't important, but if you ran it and it
> took a while (> 5 seconds or so), but then at the same time it was
> running, you visited a page in the mgmt interface and that operation
> took .83 seconds, that's the number that's important.. that lets us know
>
> that MP Linux systems aren't "freezing" like Solaris systems. However,
> if you ran this method, and you couldn't do anything on the system until
>
> it finished, there would be a problem.
>
> Paul Zwarts wrote:
>
>>Um... I can do this on a Dual P2-400 with 256mb ram, loading the
>>
> Redhat
>
>>flavour of the latest linux kernel....
>>
>>But, I don't quite understand the test. At least, what is the dtml
>>doing? I tried it out and I get nothing on the page, except my
>>header/footer stuff. The time reslut from the debug console reveals
>>
> .83
>
>>seconds, but that is because my interface is quite heavy on SQL and
>>
> CST.
>
>>Should I modify the code to something else? I suppose the first in-tag
>>is to just create a loop, so can I use _.range() instead?
>>
>>If the ZopeFind(this(), '', '', '',....) means its looking for '1' as
>>
> an
>
>>object, it doesn't work either even if I add a method called '1'. With
>>some text in between, I see that the first <dtml-in> works only and
>>
> the
>
>>ZopeFind returns bunk.
>>
>>I'm interested in this test, but I;m not techie enough to understand
>>
> the
>
>>control here.
>>
>>
>><dtml-call logic>
>><dtml-var head>
>><dtml-var standard_html_header>
>>start<br>
>>
>> <dtml-in
>>
>>
> "[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
>
>>1,1]">
>> a<br>
>> <dtml-in "ZopeFind(this(), '', '', '', '', '' , '', '', '', 1)"
>>sort=bobobase_modification_time reverse>
>> b<br>
>> <dtml-var bobobase_modification_time>, <dtml-var id><br>
>>
> </dtml-in>
>
>> </dtml-in>
>>end<br>
>><dtml-var standard_html_footer>
>>
>>
>>
>>Thanks for help,
>>Paul Zwarts
>>
>>-----Original Message-----
>>From: zope-admin@zope.org [mailto:zope-admin@zope.org] On Behalf Of
>>Chris McDonough
>>Sent: Wednesday, October 24, 2001 12:48 AM
>>To: Tony McDonald; Oliver Erlewein; zope@zope.org
>>Subject: Re: [Zope] Threading, dtml and performance?!
>>
>>Can somebody with a multiprocessor Linux machine try this out?
>>
>>----- Original Message -----
>>From: "Tony McDonald" <tony.mcdonald@ncl.ac.uk>
>>To: "Chris McDonough" <chrism@zope.com>; "Oliver Erlewein"
>><oerlewein@gmx.de>; <zope@zope.org>
>>Sent: Tuesday, October 23, 2001 6:12 PM
>>Subject: Re: [Zope] Threading, dtml and performance?!
>>
>>
>>
>>
>>>On 23/10/01 4:21 pm, "Chris McDonough" <chrism@zope.com> wrote:
>>>
>>>
>>>
>>>>This "hogging" behavior doesn't show up on a Linux 2.4.2 kernel,
>>>>
>>>>
>>Zope
>>
>>
>>>>2.3.3 system we have here. I can browse the site normally while
>>>>
>>>>
>>the
>>
>>
>>>>DTML method runs.
>>>>
>>>>I don't have a Solaris machine to test this on; can anyone else
>>>>confirm the behavior on Solaris?
>>>>
>>>>
>>>>
>>>Solaris 8, Zope 2.4.1 compiled from source.
>>>Save the DTML as a method, 'view' it. Try and do something else on
>>>
>>>
>>the same
>>
>>
>>>site .... No-go.
>>>
>>>Damn.
>>>
>>>Tone.
>>>--
>>>Dr Tony McDonald, Assistant Director, FMCC, http://www.fmcc.org.uk/
>>>The Medical School, Newcastle University Tel: +44 191 243 6140
>>>A Zope list for UK HE/FE
>>>
>>>
>>http://www.fmcc.org.uk/mailman/listinfo/zope
>>
>>
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>>
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>>
>>
>
>
--
Chris McDonough Zope Corporation
http://www.zope.org http://www.zope.com
"Killing hundreds of birds with thousands of stones"