1352388 - [Request] Softvision Testing for the e10s-multi System Add-On For Firefox 54 Beta Experiments

Status: RESOLVED FIXED

(Firefox :: General, enhancement)

Description

[Erin Lancaster [:elan]]

Greetings, 

We need the e10s-multi system add-on to be validated much like we needed the e10s-single process add-on tested. 

Here is the ticket for the System Add-On changes to give you a sense of proportions for the beta population: Bug 1349363

Note, we are not supporting any add-on SDK/bootstrapped add-ons: Bug 1349363e

e10s-multi will be enabled in Aurora by April 3rd.

We want to do an experiment for Firefox 54 Beta 1 on April 19

For reference to previous experiments:https://wiki.mozilla.org/Electrolysis/Experiments

Please be in touch with :mrbkap with technical questions and with :elan with any scheduling or cross-functional questions. Thank you!

Comment 1

[u554753]

Hi Blake,

Some questions while writing tests for this:

What is the pref to make sure APZ is turned on? 

Can you give me an example of bootstrapped add-ons so we know what to avoid?

And also an example of WebExtension-style addons. I noticed some of the popular addons are listed as the bootstrapped category, and I'm not sure what the difference is. 

By "not supporting" these addons, would they be considered "disqualified" from the test? If it's not considered disqualified, what would the expected value be?

These are the test cases so far, but will add/change/edit based on the answers above:
https://docs.google.com/spreadsheets/d/1m6c7zeBPKwgWTspo_FYZjiEoJ4Qv4DxmdUvRw1NagiI/edit?ts=58e3d4ed#gid=0

Thanks!

Comment 2

[u554753]

Hello, any update on the information for Comment 1? Thanks!

Comment 3

[Mike Conley (:mconley) (:⚙️)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #1)

> What is the pref to make sure APZ is turned on? 

layers.async-pan-zoom.enabled is the pref, and you can ensure that APZ is enabled by visiting about:support and checking the "Asynchronous Pan/Zoom" entry in the Graphics section.

> 
> Can you give me an example of bootstrapped add-ons so we know what to avoid?

Sure, here's one such add-on: https://addons.mozilla.org/en-US/firefox/addon/superstop/

> 
> And also an example of WebExtension-style addons. I noticed some of the
> popular addons are listed as the bootstrapped category, and I'm not sure
> what the difference is. 

A bootstrapped add-on has higher levels of privilege within the browser by default. It has access to the same APIs that the rest of the browser code.

WebExtensions need to request those permissions, and the APIs that a WebExtension can speak with are very well defined, and are far less volatile.

Here's a WebExtension you can install: https://addons.mozilla.org/en-US/firefox/addon/tabsubmit-basic/

Note that addons.mozilla.org subtly hints at which add-ons are WebExtensions - if you see a "Permissions" link without a yellow warning triangle next to the "Add to Firefox" button, then it's a WebExtension.

If, on the other hand, the Permissions link has a yellow warning triangle next to it, then this is likely an old-style add-on (not necessarily bootstrapped, but definitely not a WebExtension).

> 
> By "not supporting" these addons, would they be considered "disqualified"
> from the test? If it's not considered disqualified, what would the expected
> value be?

By "not supported", I believe it means that if these "disqualified" add-ons are installed, then the user will be put in the "e10s-single" cohort (they'll only be using a single content process).

I hope that helps! Let me know if you need further clarity there.

Comment 4

[u554753]

Thanks,

What platforms would you want this to be tested on? Windows/Linux/Mac?

Comment 5

[Mike Conley (:mconley) (:⚙️)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #4)
> Thanks,
> 
> What platforms would you want this to be tested on? Windows/Linux/Mac?

All three please, but with an emphasis on Windows.

Comment 6

[Blake Kaplan (:mrbkap) (inactive)]

(In reply to Mike Conley (:mconley) from comment #3)
> (In reply to Grover Wimberly IV [:Grover-QA] from comment #1)
> 
> > What is the pref to make sure APZ is turned on? 
> 
> layers.async-pan-zoom.enabled is the pref, and you can ensure that APZ is
> enabled by visiting about:support and checking the "Asynchronous Pan/Zoom"
> entry in the Graphics section.

For what it's worth, I would not expect this to be a problem. The APZ stuff was being finished around the same time as e10s (for 1 content process) and there was a bunch of back-and-forth as to what configuration we were going to ship with. e10s-multi is going to use APZ and none of the code here is going to touch that pref.

Comment 7

[u554753]

I might be a bit confused then - In Comment 1, it mentions "We need the e10s-multi system add-on to be validated much like we needed the e10s-single process add-on tested" - Do you have examples of what team or tests that involved the single-process add-on? I can use that as a template for making these tests. Or simply continue the path of where I was going in Comment 1 without the emphasis on APZ?

Comment 8

[Blake Kaplan (:mrbkap) (inactive)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #7)
> Or simply continue the path of where I was going in Comment 1
> without the emphasis on APZ?

That's what I meant. The rest of the test plan from comment 1 looks good to me. Sorry for my delay in responding to you. I'm also hoping to have patches up in bug 1349363 early next week (Monday or Tuesday).

Comment 9

[u554753]

No worries, just making sure I am on the right track is all. Thanks for your assistance!

Comment 10

[u554753]

The draft for initial test cases are ready - Please refer to the link on Comment 1 and let that know if the steps are accurate. 

We cover to ensure: 
A/ The add-on is active
B/ Three bootstrapped add-ons which would send the user back to e10s-single cohort
C/ Three WebExtension add-ons which would keep the user in e10s-multi cohort

If this is all good, we will begin running tests to verify this on Windows, Mac, and Linux on Monday.

Comment 11

[u554753]

Hi there,

Any update on the details about Comment 10? We can begin testing if our coverage is to your liking. Thanks!

Comment 12

[u554753]

When running tests for bootstrapped add-ons being installed, we get "unsupportedChannel" as the value for e10sCohort. Is this intended?

Comment 13

[u554753]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #12)
> When running tests for bootstrapped add-ons being installed, we get
> "unsupportedChannel" as the value for e10sCohort. Is this intended?

This seems to be the case for Web Extensions as well.

Comment 14

[:Felipe Gomes (needinfo for replies!)]

I looked at the doc from comment 1 and the testcases look reasonable. The cohorts name might differ in the final version, but the idea is there. I believe we'll also need test cases about the transitions from one cohort to the other. E.g.:  Be on e10s-multi cohort, install bootstrapped addon, check cohort.. uninstall addon, check cohort again.. And ensure they are all that's expected.

We should now wait for the code to land before determining the details of the expected behavior and to start testing.

(In reply to Grover Wimberly IV [:Grover-QA] from comment #12)
> When running tests for bootstrapped add-ons being installed, we get
> "unsupportedChannel" as the value for e10sCohort. Is this intended?

This is because the addon code only applies to Beta and Release, and you were probably testing it with Nightly or Aurora.

Comment 15

[u554753]

(In reply to :Felipe Gomes (needinfo me!) from comment #14)

> 
> We should now wait for the code to land before determining the details of
> the expected behavior and to start testing.
> 

Just asking for clarification on this part. Do you prefer us to start testing now while the exact expected behavior is yet to be determined or hold on testing until the code is landed and we know the expected behavior? Thanks.

Comment 16

[:Felipe Gomes (needinfo for replies!)]

This can't really be tested before bug 1349363 lands

Comment 17

[Erin Lancaster [:elan]]

:Grover-QA We will be ready for you to start testing today. Blake is working on a custom build.

Comment 18

[u554753]

Acknowledged, thanks for the heads up. Please flag when the build is ready and complete.

Comment 19

[Blake Kaplan (:mrbkap) (inactive)]

Builds for testing will be up at [1].

[1] https://treeherder.mozilla.org/#/jobs?repo=try&revision=6874b25be46a97e7ce49017be4028b21426e3a97

Comment 20

[Blake Kaplan (:mrbkap) (inactive)]

Sorry for the bugspam, the builds will be up at [1].

[1] https://archive.mozilla.org/pub/firefox/try-builds/[e-mail]-6874b25be46a97e7ce49017be4028b21426e3a97/

Comment 21

[u554753]

Got it! We will run through the tests tomorrow.

Comment 22

[Blake Kaplan (:mrbkap) (inactive)]

I've done some very basic smoketesting on my own here, for what it's worth. It looks like the code that's checked in (and awaiting beta approval) mostly works. The cohort names in the case of opting in for multi only and, separately, an extension that allows single-process e10s but blocks multi will not be as precise as stated in the docs here. Talking to Felipe on IRC, we're happy letting that ride into beta 1 and fixing it for beta 2. I'll file a followup bug right now to track that.

Comment 23

[u554753]

One final question, do you want us to test for Linux? I noticed no try-builds for this, but I wanted to make sure.

Comment 24

[Erin Lancaster [:elan]]

You can just use Firefox 54 Beta 1 for all three platforms: Mac, Windows, Linux. The official build should be available by now. If not, continue with try and test Linux once it is. Thank you.

Comment 25

[u554753]

Hi Blake,

When installing Greasemonkey add-on (an incompatible one) we are getting "addons-set50allmpc-control" as the value for e10s Cohort. Is this what you were referring to in Comment 22 with incompatible addons not having precise values?

More so, is this intended/expected behavior? Thanks.

Comment 26

[Blake Kaplan (:mrbkap) (inactive)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #25)
> When installing Greasemonkey add-on (an incompatible one) we are getting
> "addons-set50allmpc-control" as the value for e10s Cohort. Is this what you
> were referring to in Comment 22 with incompatible addons not having precise
> values?

Yes, that's what I was referring to.

> More so, is this intended/expected behavior? Thanks.

It wasn't intended; talking to Felipe, we decided that it isn't worth respinning to fix it, however. The patch in bug 1357959 will fix it and we'll try to get that in for beta2. I'm about to head into the office now but I'll create a beta build with the patch that you can use to verify this once I'm in.

Comment 27

[u554753]

It's hard for us to determine whether or not the test cases pass or not due to us getting wildly different results. 

For example: On Windows, we get addons-set50allmpc-multiBucket2 or control, and on Mac, we're seeing addons-set50allmpc-test.

Please let us know when you create the beta build with the patch and we can try and give it another go with more consistent results. Please needinfo me when ready. Thanks!

Comment 28

[:Felipe Gomes (needinfo for replies!)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #27)
> It's hard for us to determine whether or not the test cases pass or not due
> to us getting wildly different results. 
> 
> For example: On Windows, we get addons-set50allmpc-multiBucket2 or control,
> and on Mac, we're seeing addons-set50allmpc-test.
> 
> Please let us know when you create the beta build with the patch and we can
> try and give it another go with more consistent results. Please needinfo me
> when ready. Thanks!

Do these different results happen when using the same add-on? And are they consistent on each platform? (i.e., you always get -test on Mac and -multiBucketX on Windows)

Comment 29

[u554753]

On Mac, it is set on multibucket before webextension is installed, it is set to -test after WebExtension is installed. 

The prefs on Mac (as requested on IRC) are as follows:
extensions.e10smulti.blockedbyaddon = true
dom.ipc.processcount = 1

Comment 30

[:Felipe Gomes (needinfo for replies!)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #29)
> On Mac, it is set on multibucket before webextension is installed, it is set
> to -test after WebExtension is installed. 
> 
> The prefs on Mac (as requested on IRC) are as follows:
> extensions.e10smulti.blockedbyaddon = true
> dom.ipc.processcount = 1

On the system where this is happening.. when you get into this situation, can you post the entire list of Extensions as found in about:support?

Comment 31

[Stefan [:StefanG_QA]]

Extensions
Name                                    Version         Enabled         ID
Application Update Service Helper       2.0     true    [e-mail]
Incognito This Tab                      0.0.5   true    @incogtab
Multi-process staged rollout            1.15    true    [e-mail]
Pocket                                  1.0.5   true    [e-mail]
Restart                                 3.0.2   true    [e-mail]
Web Compat                              1.1     true    [e-mail]

Comment 32

[:Felipe Gomes (needinfo for replies!)]

(In reply to Stefan [:StefanG_QA] from comment #31)
> Extensions
> Name                                    Version         Enabled         ID
> Application Update Service Helper       2.0     true    [e-mail]
> Incognito This Tab                      0.0.5   true    @incogtab
> Multi-process staged rollout            1.15    true   
> [e-mail]
> Pocket                                  1.0.5   true    [e-mail]
> Restart                                 3.0.2   true    [e-mail]
> Web Compat                              1.1     true    [e-mail]


So what is happening here is the presence of this "Restart" addon. Since it's not a webextension, it's making the profile to be ineligible for the multi experiment.

Comment 33

[u554753]

We are getting the following values when installing a combination of WebExtensions and incompatible addons:

Incognito This Tab (WebExt) + AdBlock Plus (Add-On) - multiBucket8
Greasemonkey (Add-On) - multiBucket8
adblockPlus (Add-On) - multiBucket4

Are these intended values?

Comment 34

[:Felipe Gomes (needinfo for replies!)]

Is that after a restart?

Comment 35

[u554753]

After restart:

On Windows:
Incognito This Tab (WebExt) + AdBlock Plus (Add-On) - addons-set50allmpc-test

On Mac: 
Greasemonkey - multiBucket8 
Adblock - temp-qualified-devtools

Comment 36

[:Felipe Gomes (needinfo for replies!)]

Ok, that is correct.. The cohort name is only updated on the next restart after installing/uninstalling addons, so please make sure Firefox is restarted to validate the results.

Comment 37

[u554753]

On Windows 10x64 with Greasemonkey add-on installed and after restart, we are getting multiBucket8 as the value for e10sCohort.

about:support info below:

Application Basics
------------------

Name: Firefox
Version: 54.0b2
Build ID: 20170424145525
Update Channel: beta
User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
OS: Windows_NT 10.0
Multiprocess Windows: 1/1 (Enabled by default)
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days
---------------------------------

All Crash Reports

Extensions
----------

Name: Application Update Service Helper
Version: 2.0
Enabled: true
ID: [e-mail]

Name: Firefox Screenshots
Version: 6.3.0
Enabled: true
ID: [e-mail]

Name: Greasemonkey
Version: 3.11
Enabled: true
ID: {e4a8a97b-f2ed-450b-b12d-ee082ba24781}

Name: Multi-process staged rollout
Version: 1.15
Enabled: true
ID: [e-mail]

Name: Pocket
Version: 1.0.5
Enabled: true
ID: [e-mail]

Name: Shield Recipe Client
Version: 1.0.0
Enabled: true
ID: [e-mail]

Name: Web Compat
Version: 1.1
Enabled: true
ID: [e-mail]

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--------

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D3D9_COMPOSITING:
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WEBRENDER:
unavailable by runtime: Build doesn't include WebRender




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browser.startup.homepage_override.mstone: 54.0
browser.tabs.remote.autostart.2: true
browser.urlbar.daysBeforeHidingSuggestionsPrompt: 3
browser.urlbar.lastSuggestionsPromptDate: 20170426
dom.ipc.processCount.web: 8
extensions.lastAppVersion: 54.0
gfx.crash-guard.status.d3d9video: 2
media.gmp-gmpopenh264.abi: x86-msvc-x64
media.gmp-gmpopenh264.lastUpdate: 1493223071
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media.hardware-video-decoding.failed: false
network.cookie.prefsMigrated: true
network.predictor.cleaned-up: true
places.history.expiration.transient_current_max_pages: 122334
plugin.disable_full_page_plugin_for_types: application/pdf
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ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences
----------------------------

Places Database
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JavaScript
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Incremental GC: true

Accessibility
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Activated: false
Prevent Accessibility: 0

Library Versions
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NSPR
Expected minimum version: 4.14
Version in use: 4.14

NSS
Expected minimum version: 3.30.2
Version in use: 3.30.2

NSSSMIME
Expected minimum version: 3.30.2
Version in use: 3.30.2

NSSSSL
Expected minimum version: 3.30.2
Version in use: 3.30.2

NSSUTIL
Expected minimum version: 3.30.2
Version in use: 3.30.2

Experimental Features
---------------------

Sandbox
-------

Content Process Sandbox Level: 1

Comment 38

[u554753]

Per Comment 35 and Comment 37: Is Greasemonkey considered a WebExtension and not an add-on?

Comment 39

[Gabor Krizsanits (INACTIVE)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #38)
> Per Comment 35 and Comment 37: Is Greasemonkey considered a WebExtension and
> not an add-on?

We allow e10s-multi for WebExtensions and non-bootstrapped add-ons. Greasemonkey is the later.

I'm not sure what is the easiest way to determine about an add-on that it's non-bootstrapped, I usually just unzip the xpi and check if it has a bootstrap.js file at root level. If it does not then it's non-bootstrapped.

Another way is to check the install.rdf file for: <em:bootstrap>true</em:bootstrap>

(https://developer.mozilla.org/en-US/Add-ons/Bootstrapped_extensions)

Comment 40

[:Felipe Gomes (needinfo for replies!)]

(In reply to Gabor Krizsanits [:krizsa :gabor] from comment #39)
> (In reply to Grover Wimberly IV [:Grover-QA] from comment #38)
> > Per Comment 35 and Comment 37: Is Greasemonkey considered a WebExtension and
> > not an add-on?
> 
> We allow e10s-multi for WebExtensions and non-bootstrapped add-ons.
> Greasemonkey is the later.

Oh, because we check aAddon.bootstrap. Is this intentional? I thought the purpose of that check would be to only allow WebExtensions. I guess that's something to be fixed?

Comment 41

[:Felipe Gomes (needinfo for replies!)]

(In reply to Grover Wimberly IV [:Grover-QA] from comment #38)
> Per Comment 35 and Comment 37: Is Greasemonkey considered a WebExtension and
> not an add-on?

The best way to check if it's a WebExtension is looking on AMO. If it's a WebExtension, it will have a mark next to the name saying "Compatible with Firefox 57+". For example: https://addons.mozilla.org/en-US/firefox/addon/tabsubmit-basic/

Comment 42

[u554753]

Everything looks good. Sign-Off sent via email.

Comment 43

[BugBot [:suhaib / :marco/ :calixte]]

The bug assignee didn't login in Bugzilla in the last 7 months, so the assignee is being reset.