Created attachment 95212 [details] .ods spreadsheet which burns 80% CPU when "idle" LO Calc uses 80% CPU or more when sitting "idle" if Conditional Formats are used in conjunction with STYLE(...). I'm using this to style rows of data depending on a key value in one of the columns, while leading the other columns containing "plain data" the user can easliy change. The load increases with the number of cond-formatted cells... it' as if some background thread continually re-evaluates all the Cond. Fmt formulas for all the cells even though no data is changing anywhere. Attached is a demo .ods file. It contains a VLOOKUP table in A1:B3 followed by a large array of sample data. The data cells all have same conditional format with Formula: STYLE(VLOOKUP($A$1:$A$9999, $A$1:$B$3, 2, 0)) (The "apply style" is irrrelevant because STYLE() always returns false) Please try the attached demo.
Alright, would somebody please post how to attach a .ods document and have it not be stored as text. The file type drop-downs don't offer any ODF formats as an option...
In the future "auto detect" will do it :)
Same behavior on 4.2.1.1 so updating version. I've asked Markus about this to see what he thinks - might be expected. Also for attachments - FDO has a bug where you can't auto detect the first attachment so apologies for that :)
STYLE + Conditional Formatting is sadly a bad combination right now. At some point I need to profile what is going wrong and fix it properly.
Thanks Markus - marking as NEW
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Tried 5.0.0.0.beta1+ and it still sucks CPU cycles just sitting idle. "top" on Linux shows soffice.bin varying from 61% to 98%
*** Bug 54920 has been marked as a duplicate of this bug. ***
As explained in the other bug report I currently don't consider this behavior a bug and instead consider using STYLE inside of a conditional format function an user error (one that we can possibly avoid by causing a formula compilation error). *** This bug has been marked as a duplicate of bug 95233 ***
Hi Marcus, Would you please post more about why this is a user error (or unreasonable use)? I read your comment#7 in bug 95233, but don't yet understand why STYLE() in a conditional format is inherently a problem. You said "Now as STYLE changes the cell we of course need to recalculate the conditional format again" ... Yes, that would be true if the cell kept changing. The problem is that infinite re-calculation keeps happening even when the cell does NOT change value, i.e., after all cells have reached the intended steady state. That's the bug as I understand it. Thanks, -Jim