On 17.08.2010 18:53, William W. Austin wrote:
Normally when I work from home, I use OOo (3.2.0) on a Linux
workstation with 8 Gb of RAM, a 2.6GHz quad-core AMD Phenom X4 9950
CPU, fast disk drives and other performance-oriented H/W.
This weekend I had to do some maintenance and my favorite box was down
so I used a 'slower' PC with slower drives, 4GB of memory, and a
slower CPU (dual core Athlon 64 @ 6 GHz), under Windows 7, and
performance-wise OOo 3.2.0 on it ran rings around the faster Linux box.
(I had never tried it there before on anything longer than a grocery-
list spreadsheet.)
Is there a known reason for the performance difference between the
Windows version and the Linux version? Or am I seeing something else
probably unrelated to the software itself?
Usually OOo is faster on Linux on identical hardware.
From the load meter, I notice that on Linux, OOo seems to max out only
one core on the CPU - however, it seems to split across both cores on
the Windows 7 machine. While I expect that this has something to do
with it, I am hard pressed to believe that this is the single cause.
Most of the OOo work is done in a single thread on Windows and Linux;
there shouldn't be any difference. I think that the performance meter
doesn't reflect reality on Windows.
As a test I 'borrowed' a novel my wife is working on (about 900 pages,
no illustrations, all one long .odt document) and here are the
comparative times (in seconds)
Fedora 13
Linux Windows 7
--------------- ---------
Open (empty) writer screen 4.7 < 2
Load doc originally 30.9 3.1
Save doc 3.9 4.2
Update TOC 154.1 < 2
Send final page of doc to printer 29.8 2.8
Export .pdf file gave up* 29.5
*At 10 minutes I stopped counting and killed the process as only
The Linux times are ridiculously slow - I get much faster times on my
Core2Duo Notebook on Linux. The Windows 7 times are comparable to what I
get with XP on my Notebook (2 GHz).
You must have a serious performance bottleneck on your Linux machine
that is not directly related to OOo.
Regards,
Mathias
--
Mathias Bauer (mba) - Project Lead OpenOffice.org Writer
Please don't reply to "[email protected]".
I use it for the OOo lists and only rarely read other mails sent to it.
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