Stuttering/ judder while scrolling using page down. A recycled bug-doc.. can't find the source bug
Steps to Reproduce:
1. Open attached file
2. Press Page down & monitor CPU
Stuttering/ slow down
User Profile Reset: No
Build ID: 6740443311268b7d918bf4f43134d64fb78a0109
CPU threads: 4; OS: Windows 6.3; UI render: GL; VCL: win;
TinderBox: Win-x86@42, Branch:master, Time: 2019-01-15_23:37:04
Locale: nl-NL (nl_NL); UI-Language: en-US
Build ID: f200d5700782ae179fd96b6ad4b0fe8e7edd1616
CPU threads: 4; OS: Windows 6.29; UI render: default;
Locale: nl-NL (nl_NL); Calc: CL
Created attachment 148657 [details]
When I try to open the file, LO becomes unresponsive.
Build ID: 3c964980da07892a02d5ac721d80558c459532d0
CPU threads: 2; OS: Windows 6.1; UI render: default; VCL: win;
TinderBox: Win-x86@42, Branch:master, Time: 2018-12-12_02:07:45
Locale: en-US (en_US); UI-Language: en-US
I found the most informative metric is to hold page down for 10 seconds, stop, observe the page you reached. With 4.3.0 I reached page 100. With 5.0.2 I reached 50. With 6.0 bibisect repo I reached 19 (same ballpark for newer ones). Unfortunately, I did not get the worst value in the bibisect repo for 5.4, so I am unable to perform a bibisect.
Maybe I could try to find the worsening after 4.3 on Linux.
(In reply to Buovjaga from comment #3)
> Maybe I could try to find the worsening after 4.3 on Linux.
No luck. I was not able to observe a difference. Linux behaves differently from Windows in that it keeps scrolling a long time after you finish pressing PgDn.