Mailing-List: contact ooo-dev-help@incubator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: ooo-dev@incubator.apache.org
Received-SPF: pass (nike.apache.org: domain of dennis.hamilton@acm.org
 designates 216.119.133.2 as permitted sender)
Reply-To: <dennis.hamilton@acm.org>
From: "Dennis E. Hamilton" <dennis.hamilton@acm.org>
To: <ooo-dev@incubator.apache.org>
References: <4FAB8971.40705@mail.imacat.idv.tw>
  <CAKQbXgDKb2-E0mu_14gK5bFj=+GazCSSjOOo42Y=uqmTnTxU_w@mail.gmail.com>
  <CAP-ksoiknOsWEi43jw2MTufi2g60UFGBvK-ZTtmVZWZWMvmghg@mail.gmail.com>
  <CAP-ksohdYz_qSqujqbkiPwZbVFnP-eyn8hDA0tB5m8c_esM3JA@mail.gmail.com>
  <1336662368.8759.3.camel@sybil-gnome>  <4FABDD61.3040608@a-w-f.de>
 <1336663830.8759.9.camel@sybil-gnome> <4FABE272.3050500@googlemail.com>
In-Reply-To: <4FABE272.3050500@googlemail.com>
Subject: RE: Performance!
Date: Thu, 10 May 2012 09:23:19 -0700
Organization: NuovoDoc
Message-ID: <018501cd2ec9$36ecdf90$a4c69eb0$@acm.org>
MIME-Version: 1.0
Content-Type: text/plain;
	charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Thread-Index: 
 AQJi+HGdi/lI+va9YDmqrb63PIQGvwFXc/GvAyeWTukCENu5/wHsShCOAWejcEoBVfcrJgHi/o1RlS62P5A=
Content-Language: en-us

All right, this seems like a good place to splice in a comment I made in =
the private thread that it is time to be careful and not get into =
exaggerated claims, especially when a variation is not consistently =
present to all users in all situations.

Unsubstantiated subjective experiences are not trustworthy.  It is also =
very difficult to control the variations that exist from one setting and =
execution to another.

So let's stop making so much of this. =20

 - Dennis

A LESSON ON PERFORMANCE-CLAIM HUMILITY:

I just stubbed my toe on a performance situation where there is a =
serious worse-than-linear degradation in performance as a particular =
kind of ODF Text document grows.  Using a hot machine, I only noticed =
the pain when opening the document extended into an intolerable number =
of minutes as I continued work on successive drafts.  On my slower =
laptop, where I repeated the test for comparison purpose, the document =
now takes over an hour to open.  This is on OO.o 3.3.0, AOO 3.4.0, and a =
variety of LibreOffice releases. =20

Yes there are differences among the different releases, and they are =
rather consistent when the time is so long, but the fastest =
(OpenOffice.org 3.3.0 in my crude tests) is still swamped by whatever =
the serious performance degradation is and it is common to all releases =
tested. =20

This is not the kind of problem that can be isolated into a small test =
case for reproducibility, so the forensic work to demonstrate it and =
capture data points is really tedious.  Ordinary users probably think =
that their software has hung or is not even starting when it is just =
that there is something that is taking a very long time as part of =
loading the document (but neither disk nor network, something in the =
logic that pegs the CPU for minutes when not hours).

Bug reports will follow shortly.

-----Original Message-----
From: J=C3=BCrgen Schmidt [mailto:jogischmidt@googlemail.com]=20
Sent: Thursday, May 10, 2012 08:45
To: ooo-dev@incubator.apache.org
Subject: Re: Performance!

[ ... ]

But the point right now is that the majority of users don't care about=20
this and see only that AOO is starting fast. A fact that I like very=20
much because there were indeed some improvements for 3.4.

And how nice is it when users notice such improvements without deeper=20
analysis. The fact that users simply having the impression that it=20
starts fast is very nice.

So let us focus on further improvement going in this direction. Let us=20
make our users happy. Many many happy users and their positive feedback=20
is the payment that we get for our work here.

Juergen

[ ... ]