Browser performance reduces when large amount of bookmarks are imported

[srirambv]

Test plan

#8075 (comment)

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• Did you search for similar issues before submitting this one?
  Yes

• Describe the issue you encountered:
  Browser performance reduces when large amount of bookmarks are imported

• Platform (Win7, 8, 10? macOS? Linux distro?):
  Windows 10 x64

• Brave Version (revision SHA):
  Brave 0.13.3
  rev 27f447f
  Same on 0.13.2 as well

• Steps to reproduce:

  1. Import a large bookmark HTML file
  2. Open new tabs and open from bookmarks
  3. Open bookmark folders, response on click is too slow

• Actual result:
  Performance is very slow after large amount of bookmarks are imported

• Expected result:
  Imported bookmarks should not impact browser performance

• Will the steps above reproduce in a fresh profile? If not what other info can be added?
  Yes

• Is this an issue in the currently released version?
  Yes

• Can this issue be consistently reproduced?
  Yes

• Extra QA steps:
  1.
  2.
  3.

• Screenshot if needed:
  0.13.2 http://sendvid.com/ekjiz2cv
  0.13.3 http://sendvid.com/0q3t3iey

• Any related issues:
  Community issue
  cc: @darkdh
  Please change milestone if required

[CliqueBait]

Community feedback:
https://community.brave.com/t/creating-bookmarks-takes-a-long-time/1987

This performance hit is a deal breaker for some users. I'm not sure they can wait for v1.0.0 for this to be fixed. Can this issue be expedited or failing that an interim fix be included in an earlier release?

[cndouglas]

The address bar's performance is affected by many bookmarks (#6620 and #7453).

[luixxiul]

Another report here: https://community.brave.com/t/25-cpu-probably-1-core-slow-and-unstable-after/1989

[escalope]

I run a linux mint with 8GB and dual core. Brave v. 0.15.2-1

Brave run like a charm, but after importing my firefox bookmarks (200+ bookmarks) performance decreased. Google tools (drive+gmail) were very slow to the point of taking half a second to type a character.

Could not remove bookmarks through brave (even with select + delete). So I had to delete brave folder in .config.

After this, performance returned to normal.

[luixxiul]

that performance issue you have mentioned (importing many bookmarks makes the browser slow down) is going to be fixed with the next a future release.

[srirambv]

Not seeing any significance improvement on Windows with the test file.

[LaurenWags]

Confirming I saw similar results to @srirambv on MacOS after continuous use for 2-3 hours. However, after closing and coming back for approx half an hour of continuous use, did not see the same results.

[darkdh]

@srirambv , @LaurenWags did you test with open folder on bookmark toolbar?
If so, that is different issue haven't been solved yet.
The PR only addressed

1. Open bookmarks of menu shouldn't affect performance
2. Open about:bookmarks shouldn't affect performance

[LaurenWags]

@darkdh - just to make sure i'm understanding correctly, you're saying that for 1, if we open a bookmark from the bookmarks toolbar, that shouldn't affect performance? and for 2, if we have about:bookmarks open that shouldn't affect performance?

And 3, other bookmarks performance items are not covered by this?

[darkdh]

for 1 is opening

and for 2 if we open about:bookmarks and the page will not be delayed to display

cc @bsclifton for also manually applying PR to test

[srirambv]

@darkdh This is what I followed, as per original STR which still has a very bad performance lag

1. Import large bookmarks
2. Open a new tab and visit any site/the one that is bookmarked
3. Bookmark toolbar -> Imported folder -> Open bookmark folder
   There is a very significant lag in response in opening the folder

Step 1 that you mentioned opening bookmark menu works fine, but there is a little lag when navigating inside nested folders and back from sub-folders to root folders, or scrolling inside sub-folders
Step 2 that you mentioned works fine, Opening about:bookmarks has no performance lag

[Grumbel]

I am on Ubuntu 17.04 with Brave 0.18.36 and the Bookmark performance is still terrible. Trying to navigate through the Bookmark menu comes with 1sec lag between mouse action and GUI response (e.g. opening a submenu, updating the highlighted item).

about:bookmarks doesn't feel super responsive either, opening a large folder can take around half a second or so.

I have around 4000 bookmarks spread over numerous submenus, imported from Chrome. Chrome can handle that amount of bookmarks without any noticeable delays.

[luixxiul]

it'll be addressed on 0.19

[HamishMacEwan]

It hasn't been addressed, bookmarking a URL is excruciatingly slow. The import from Firefox took, I don't know, I went for a walk and had lunch...

Brave: 0.19.147
rev: f1b90a3
Muon: 4.7.6
libchromiumcontent: 64.0.3282.119
V8: 6.4.388.40
Node.js: 7.9.0
Update Channel: Release
OS Platform: Linux
OS Release: 3.16.0-4-amd64
OS Architecture: x64

[cndouglas]

@HamishMacEwan You might want to try with the latest version of Brave that came out today, 0.20.29. It contains a number of performance fixes.

[HamishMacEwan]

Thanks @liunkae. It is better, still not good but much better.

Any plans to:

1. Allow folder creation in the bookmark add dialogue
2. Expand/Collapse folders in bookmark viewing

These requirements, like the performance issue, all relate to heavy bookmarking and categorising uses.

[cndouglas]

@HamishMacEwan There are plans for both of those features. See issues #8346 and #5077.

[HamishMacEwan]

Thank you. I have subscribed to both those issues in hope of learning they're available asap.