Server: Safari shows high CPU load

[helmut72]

Steps to reproduce

1. Login to Nextcloud
2. Wait

Expected behaviour

Safari is in idle mode when nothing happens

Actual behaviour

Safari on macOS 10.13.6 shows high CPU load

Server configuration

Operating system: Ubuntu 18.04

Web server: Apache2

Database: MariaSQL

PHP version: 7.2

Nextcloud version: 14.0

Updated from an older Nextcloud/ownCloud or fresh install: Update

Where did you install Nextcloud from: Web-Updater

List of activated apps:
Shouldn't be the problem

Are you using external storage, if yes which one: local, smb

Are you using encryption: no

Client configuration

Browser: Safari

Operating system: macOS 10.13.6

Logs

Web server error log

No log. I do nothing. Only being logged in.

Browser log

I see some lines like this:

[324 <private> stream, pid: 33527, url: https://my.nextcloud.domain/ocs/v2.php/apps/notifications/api/v2/notifications, tls] cancelled
    [324.1 BB809A76-3379-4FC8-BE86-F7F9DC8C4630 <private>.50637<-><private>]
    Connected Path: satisfied (Path is satisfied), interface: en0, ipv4, dns
    Duration: 6.359s, DNS @0.000s took 0.010s, TCP @0.013s took 0.011s, TLS took 0.005s
    bytes in/out: 866/1404, packets in/out: 8/8, rtt: 0.010s, retransmitted packets: 0, out-of-order packets: 0

[nextcloud-bot]

GitMate.io thinks possibly related issues are https://github.com/nextcloud/server/issues/9042 (Use external storage CPU usage high), https://github.com/nextcloud/server/issues/6144 (it shows "Failed to load resource: net::ERR_TOO_MANY_REDIRECTS"), https://github.com/nextcloud/server/issues/5171 (Heavy CPU-load with video-calls), https://github.com/nextcloud/server/issues/4260 (Share link (public link) shows loading icon forever), and https://github.com/nextcloud/server/issues/4366 (Mail not loading.).

[hunter-nl]

I Do not have high CPU load, But OSX Safari complains about significant energy usage. Safari shows the following above the nextcloud webpage after I logged in.

Any page of my nextcloud 14 or nextcloud app or admin settings page result in this high energy consumption. With Nextcloud 13 this issue was not there.

[helmut72]

yes, get this image too after some time.

[jinyu121]

Same here.

Just logging into NextCloud and wait about 3 minutes.

(Mining? emmmm...🤔)

[MorrisJobke]

I guess this is because of the polling for notifications 🙈

cc @nickvergessen

[kevin147147]

If you look in safari web inspector > timelines. Do a record with the red button. You'll see styles invalidated and styles recalculated every frame. This constant load draws performance and it only happens on safari and ios. It was not there on nc 13. I think its because of the style change in nc 14.

[nickvergessen]

cc @skjnldsv

[MorrisJobke]

Let me bisect this one.

[MorrisJobke]

This seems to be the one: 8977c71f8842f19077fdd0bfe27a4f48f2bc4726 (checking out the parent fixes the issue).

@skjnldsv Do you have any idea what is happening here? Does the @include cause some weird side effects?

[MorrisJobke]

This commit also causes this behavior on Safari (I guess this is the reason or the high CPU load):

Turning off the browser cache it will re-request all SVGs infinitely - could be one symptom of the re-rendering.

Before (232 requests in total):

After (3,1K but counts up):

This is the request (you can see there the 6,4k requests):

[MorrisJobke]

Unfortunately did #12019 not fix this issue so I will reopen it. Current master has still this issue. 😢

[skjnldsv]

Oups, forgot to remove the fix keyword!

[helmut72]

And it's also there on 15.0 Beta 1. Btw, 15.0 looks like a terrific release, especially with Grid view and external scripts add on 👍

[MorrisJobke]

@skjnldsv Any idea how to move this forward? Should we try another icon for the search or a different approach on how to integrate it in the DOM?

[skjnldsv]

This is coming from the variables, I did not have the time to investigate yet :(
We're not the only one using css4 variables, I'm wondering how YouTube is doing on safari :confused:

[MorrisJobke]

This is coming from the variables, I did not have the time to investigate yet :(
We're not the only one using css4 variables, I'm wondering how YouTube is doing on safari 😕

So this is only because the CSS4 variable contains a base64 image? Maybe there is a threshold in size we are passing?

[skjnldsv]

No, this is because we have css4 variables containing urls apparently, base64 doesn't change the issue :(

[jeeves64]

Disappointed this is been pushed back again (to 14.0.5, currently due by 10/01/19), this was never an issue in NC13 and makes safari pretty much unusable 😕

[pillaib]

Today made a fresh install on my linux/Ubuntu root server

Only one user (Admin) is configured on Nextcloud

Note: Client side heavy load is caused by safari/MacOS Mojave 10.14.3 (beta) on MacBook Pro with i9
Chrome Browser doesn't produce load

Linux
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic

Nextcloud 14.0.3

Client Browser Safari

Some CPU & Temprature of CPU snapshots

Logout/Login

After login: I'm doing nothing

Safari Process

[MorrisJobke]

Nextcloud 14.0.3

You need to upgrade to 14.0.5 at least, because the fix was added there.

[pillaib]

Hi,

Thanks, I upgraded to latest 15.x.
Now looks better, have to test for few days.

Regards,

Badri

On 14. Jan 2019, at 10:06, Morris Jobke [e-mail] wrote:

Nextcloud 14.0.3

You need to upgrade to 14.0.5 at least, because the fix was added there.

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub https://github.com/nextcloud/server/issues/11179#issuecomment-453937411, or mute the thread https://github.com/notifications/unsubscribe-auth/AJyJeCKnIcKEOwiu76yZryKoqUd2X3OLks5vDEiQgaJpZM4WkKJw.