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Nightly e10s only|Pages load very slowly+browser hangs

Posted: Thu Apr 14, 2016 3:45 pm
by GH113
Hello!
e10s enabled - bug reproduced, e10s disabled bug is not reproduced
Make sure you have Nightly 14-04-2016 (13-04-2016 won't work)
Create new profile, install NoScript, restart, open new tab and go to http://www.yandex.ru
ps Yandex is russian Google https://en.wikipedia.org/wiki/Yandex

Result: almost every webpage I open loads very slowly, the whole browser hangs including the interface
Expected result: webpages should load quickly and without hangs like with e10s disabled

EDIT: also notice the same behaviour with every webpage I open, the hang is just more evident in case with Yandex.

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Fri Apr 15, 2016 12:24 pm
by NoCaker
Yup, I am having the same issue. The browser literally becomes unusable.

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Fri Apr 15, 2016 6:28 pm
by GH113

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Sun Apr 17, 2016 6:39 am
by greenknight
I use Process Explorer to monitor resource use, slowdown is worse when plugin-container.exe is using a lot of CPU. MajorGeeks home page, which has no embedded media, loads fast.

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Sun Apr 17, 2016 6:58 am
by greenknight
The above was posted with Developer Edition, which doesn't have the problem. Now back on Nightly, this forum is not bad either, same for Mozillazine forum and Bugzilla. Yahoo is a nightmare, though, freezes the browser every time a new ad loads.

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Wed Apr 20, 2016 12:30 am
by Thrawn
e10s support is not complete.

Mozilla has created a shim that allows many extensions to keep working regardless, but it *does* slow things down.

Re: Nightly e10s only|Pages load very slowly+browser hangs

Posted: Wed Apr 20, 2016 4:04 am
by therube
I was seeing slowness on wikipedia.com more so then with Yandex.

During the slowdown (hang, actually) plugin-container.exe uses 25% CPU (100% of 1-core).

Generally it was like this...

Some site, highlight a term, Search Yahoo for ...
From the Yahoo Search results, click the wikipedia.com entry

Tab opens wikipedia "loads" (hangs, most often), page (finally) loads

In most cases that is the way it is.
Though I didn't really discover any rhyme or reason to the slowness, as in sometimes, wikipedia links opened from the already loaded wikipedia page opened OK. So was kind of under the impression that it took a moderately long wikipedia page to cause the hang, but sometimes there was no (appreciable) hang, or sometimes a short page would also hang?

https://search.yahoo.com/search;_ylt=AwrBT86._xZXlXoAMuyl87UF?p=noscript+wikipedia&fr=sfp&fr2=&iscqry=