TPE Necko/Projects/Socket Process Isolation

Team members

EM: Shian-Yow Wu

Tech Lead: Shih-Chiang Chien

Implementation Team:

• Cervantes Yu
• Kershaw Chang
• Shih-Chiang Chien

Roadmap

Milestone	Task	Estimate Time in Weeks	Actual Time in Weeks
M0	Evaluation & Prototyping	6
M1	Socket process basic implementation	7
M2	HTTP/HTTPS adaption	8
M3	Telemetry for HTTP/HTTPS adaption	8
M4	Bugfix on Nightly 63 & Shell study on Beta 62	8

Scope

• M0
  • Prototyping with UDPSocket
  • Performance study on the additional process
  • Architecture design for HTTP/HTTPS adaption
• M1 - Firefox60 Nightly
  • Prepare and land socket process behind a pref, default off
  • Prepare and land telemetry for the socket process shield study
• M2 - Firefox61 Nightly
  • Shield study on the socket process overhead on Beta 60
  • Prepare and land HTTP/HTTPS modification behind a pref
  • Default enable socket process on Nightly 61
• M3 - Firefox62 Nightly
  • Continue landing HTTP/HTTPS modification and bugfix
  • Prepare and land telemetry for the HTTP/HTTPS shield study
• M4 - Firefox63 Nightly
  • Shield study on the performance of the new HTTP/HTTPS architecture on Beta 62
  • Default enable new HTTP/HTTPS architecture on Nightly 63

Evaluation

Sandboxing TCP/UDP socket in a separate process

Risk & Mitigation plan

Socket process isolation will be landed behind a pref, therefore:

• Shield study will be employed on a proportion of Firefox users before to gather performance/stability data without affecting all users at once.
• Go Faster add-on can be used to disable the feature on designated channel immediately when major regression happen after default on.

Project Dashboard

Meta Bugs

Full Query

ID	Summary	Priority	Status
1322426	[meta] Move all TCP/UDP network operations into a dedicated process	P2	NEW

1 Total; 1 Open (100%); 0 Resolved (0%); 0 Verified (0%);

M1 bugs

Full Query

ID	Summary	Status	Target milestone	Assigned to	Whiteboard
1416623	Create SocketProcessHost and corresponding IPC interfaces	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged] [SOCK-PROC-M1]
1430041	Setup crash reporter on socket process	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged][SOCK-PROC-M1]
1430042	Setup memory reporter on socket process	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged][SOCK-PROC-M1]
1430045	Create NetworkPrefs for synchronizing important preference to socket process	RESOLVED	---	Cervantes Yu [:cyu] [:cervantes]	[necko-triaged][SOCK-PROC-M1]
1430047	initialize SocketTransportService on socket process	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged][SOCK-PROC-M1]
1430048	update online/offline status to socket process	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged][SOCK-PROC-M1]
1430050	IPC to the socket process for DNS resolution	RESOLVED	---	Kershaw Chang [:kershaw]	[necko-triaged][SOCK-PROC-M1]
1430538	Setup Gecko profiler on socket process	RESOLVED	---	Dragana Damjanovic [:dragana]	[necko-triaged][SOCK-PROC-M1]
1430684	Setup telemetry on socket process	RESOLVED	---	Cervantes Yu [:cyu] [:cervantes]	[necko-triaged][SOCK-PROC-M1]
1430695	add telemetry to monitor performance metrics/overhead of creating socket process	NEW	---		[necko-triaged][SOCK-PROC-M1]

10 Total; 1 Open (10%); 9 Resolved (90%); 0 Verified (0%);