[tdf-discuss] Re: Cores and threads

Hi Michael


Michael Meeks-2 wrote
> The good news is - that
> that structural change is underway inside LibreOffice - Kohei is doing
> some great work there as of recently. 

Those are EXCELLENT news :)
It is good to know that it is not a limitation. It simply wasn't added in
yet. Actually I found out that Excel 2003 had the same problem with
cores/threads (in addition to the limit of lines).
Looking forward to test 4.1.0 rc1 next month !


Michael Meeks-2 wrote
> > Opening a heavy (200k lines x 26 cols) xlsx file takes 6 seconds in a
> > Intel
> > Core i5 (2 cores, 4 threads) using MS Office 2010. I can see the first 3
> > threads briefly going up to 70% load and it's loaded.
>
>       It is entirely possible that Excel can parse and import sheets
> separately since they are in separate streams inside the DOCX file -
> that is not an option open to LibreOffice & ODF which embeds them all in
> the same XML stream; calculation in Excel is threaded too.

No, this is a single sheet. Actually I was considering saving as ODF to
test, but I can see that won't help at all.


Michael Meeks-2 wrote
> > Using Calc 4.0.2 after waiting 5 minutes watching the first thread at
> > over
> > 85% load (and the fan whirring like crazy), I gave up waiting.
>
>       That is almost certainly completely unrelated to any form of threading
> issue, and down to the world's lamest selection of algorithms and
> implementations as showcased in the calc core :-) again Kohei is working
> hard on doing some larger changes here for LibreOffice 4.1.

Great! Looking forward to a brand new Calc!

Thank you for your extensive answer! I'm sure this is interesting and
exciting for all Calc users!

Kind regards,
Pedro



--
View this message in context: 
http://nabble.documentfoundation.org/Cores-and-threads-tp4047285p4047718.html
Sent from the Discuss mailing list archive at Nabble.com.

-- 
Unsubscribe instructions: E-mail to discuss+help@documentfoundation.org
Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/
Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette
List archive: http://listarchives.documentfoundation.org/www/discuss/
All messages sent to this list will be publicly archived and cannot be deleted