So I wrote a first draft of a script; short and simple ---- LibreOffice 6.2 will be the second release to offer multi-core threading as a standard feature.
With threading support spreadsheet calculation performance is significantly enhanced. In this video we will use an example file from the Architectural profession. Our example spreadsheet contains 234,000 data points used to compute ETTV (Envelope Thermal Transfer Value) for an entire building. We are using a representative office computer with AMD 4 core processor and 8GB of ram and Ubuntu 18.04 operating system. A full recalc of the Building Design spreadsheet using LibreOffice 6.0.7 takes 50.14 sec, the same file using LibreOffice 6.2.0, with multi-core threading, only 12.06 seconds. A 75.95% performance increase! --- Used my poor quality microphone capture of reading the script and got it down to 42 seconds. Put a a nightly rush video to that https://youtu.be/suRcgtBos9A On Wed, Jan 16, 2019 at 1:22 PM Drew Jensen <drewjensen.in...@gmail.com> wrote: > Before I forget - the files used for to gather these runtime numbers, > posted in an earlier email, are found here: > https://gerrit.libreoffice.org/#/admin/projects/benchmark > > There are five xls files with an explanation as to what the spreadsheet is > evaluating. > > They are 4 years old and seem to be as good as I've found for example > files to show the multi-core threading feature. > > Seems to me it might be worthwhile to offer them for download (maybe as a > zip file) and reference that download location in the video and/or > associated posting text. > > Also, yesterday I went back and reviewed a number of the blog posts and a > few media posts regarding threading (OpenCL and Multi-Core), thought that > was a good first step in writing up a script for use here. > > Have also gone through the Calc Functions list, as supplied in the Calc > Guide (updating it from 4.1 - 6.2) and have marked which functions are > thread enabled and which are not - not sure I have an exhaustive list but > should be close if not there. That is not really a marketing issue but in a > marketing piece listing the categories of statistical functions supporting > the feature seems to make sense. > > OK - that's it for this email. > > On Tue, Jan 15, 2019 at 2:32 PM Drew Jensen <drewjensen.in...@gmail.com> > wrote: > >> Howdy, >> >> On Mon, Jan 14, 2019 at 2:17 AM Sreekanth V K < >> sreekanth.vettikk...@protonmail.com> wrote: >> >>> The last one looks good for me. However, the operation which is >>> happening is not visible, so for a common person, he/she may not be able to >>> understand the difference. It would be better if you have the Calc in the >>> background (not just writing what is going on) and keep the system monitor >>> over the Calc. >>> >> >> Thanks for the feedback - the current drafts certainly lack context. The >> spreadsheet itself doesn't give much if any visual clues as to what is >> happening. It was my goal to use the System Monitor screen capture to show >> what is actually happening here. In the one case (LibreOffice versions >> without threading) you can see that a single processing is spiking to 100% >> for most of the work time, and compare that to LibreOffice 6.2 spreading >> the load across all for processors with each running at ~60% maximum while >> finishing the actual task significantly faster. >> >> That said I agree with you that there needs to be more to explain what >> they are seeing. >> >> Best wishes, >> >> Drew >> >>> >>> >>> Sincerely, >>> Sreekanth V K >>> >>> Sent with ProtonMail Secure Email. >>> >>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ >>> On Monday, January 14, 2019 12:10 PM, Drew Jensen < >>> drewjensen.in...@gmail.com> wrote: >>> >>> > and I kept at it for a little while, >>> > >>> > So a real first draft, I put the two runs one after so the run length >>> went >>> > to 1:13 >>> > https://youtu.be/_jtmydRYSoU >>> > >>> > The sound track is not quite right, some popping with the car engine >>> mix, >>> > but you get the idea. >>> > >>> > What do you think? >>> > >>> > and now it is no longer Sunday here, >>> > >>> > Drew >>> > >>> > On Sun, Jan 13, 2019 at 11:37 PM Drew Jensen >>> drewjensen.in...@gmail.com >>> > wrote: >>> > >>> > > Sorry, lets try that URL again for the second file >>> > > https://youtu.be/ED-zipIV1dE >>> > > On Sun, Jan 13, 2019 at 11:34 PM Drew Jensen >>> drewjensen.in...@gmail.com >>> > > wrote: >>> > > >>> > > > Of course there had another one in there, heck it isn't just a >>> Sunday it >>> > > > is a snowy Sunday where I'm at. >>> > > > so four versions of LO on the screen, from top left and running >>> clockwise >>> > > > 6.0, 6.1, 6.3 alpha, 6.2 RC2 >>> > > > this time the version number is overlaid the cpu monitor screen >>> captures >>> > > > and fade out, in timing similar to the calculation time... >>> > > > https://youtu.be/FMSPMWGdNO0 >>> > > > Anyway - realizing calculation threading became standard last >>> release I >>> > > > was thinking it worth a mention in a social media post for the >>> coming 6.2 >>> > > > as the developers have continued working on the feature. >>> > > > So, these are some first ideas for a video to go along with that >>> TBD post >>> > > > text. >>> > > > Suppose I'm asking if folks this would be worth the effort? >>> > > > Best wishes, >>> > > > Drew >>> > > > On Sun, Jan 13, 2019 at 10:29 PM Drew Jensen >>> drewjensen.in...@gmail.com >>> > > > wrote: >>> > > > >>> > > > > Howdy, >>> > > > > What you think about something to highlight the work going into >>> speeding >>> > > > > up Calc.. >>> > > > > I was playing with some of the test files available in the >>> source tree. >>> > > > > This particular file recalculates in half the time using LO 6.2 >>> RC2 as >>> > > > > compared to 6.0.7 on the machine here. >>> > > > > How to show that graphically, me thought. >>> > > > > After a few minutes of fiddling came up this. >>> > > > > https://youtu.be/FMSPMWGdNO0 >>> > > > > Too rough to share? >>> > > > > Drew >>> > >>> > -- >>> > >>> > To unsubscribe e-mail to: marketing+unsubscr...@global.libreoffice.org >>> > Problems? >>> https://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ >>> > Posting guidelines + more: >>> https://wiki.documentfoundation.org/Netiquette >>> > List archive: https://listarchives.libreoffice.org/global/marketing/ >>> > Privacy Policy: https://www.documentfoundation.org/privacy >>> >>> >>> -- To unsubscribe e-mail to: marketing+unsubscr...@global.libreoffice.org Problems? https://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: https://wiki.documentfoundation.org/Netiquette List archive: https://listarchives.libreoffice.org/global/marketing/ Privacy Policy: https://www.documentfoundation.org/privacy
