TPE Necko/Projects/PBackground for HTTP channels in e10s

Team members

• EM
  • Shian-Yow Wu
• Tech Lead
  • Shih-Chiang Chien
• Test Lead
  • Gary Chen
• EPM
  • Francis Lee

Roadmap

Milestone	Task	Estimate Time in Weeks	Actual Time in Weeks
M1	Make HttpChannelParent + HttpChannelChild thread-safe	6
M2	Move IPC message in chrome process	6
M3	Move IPC message in content process	6

Scope

• M1 - Firefox55 nightly
  • make HttpChannelParent thread-safe to deliver the content of HTTP channel
  • make HttpChannelChild thread-safe and re-enable thread-retargetability
• M2 - Firefox56 nightly
  • move IPC message from main thread to PBackground thread in chrome process
• M3 - Firefox57 nightly
  • move IPC message from main thread to Necko thread in content process

Risk & Mitigation plan

• NA

Project Dashboard

Meta Bugs

Full Query

ID	Summary	Priority	Status
1338218	[META] PBackground for HTTP channels in e10s	P1	RESOLVED

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

M1 bugs

Full Query

ID	Summary	Status	Target milestone	Assigned to	Whiteboard
1015466	Sending HTTP OnDataAvailable over PBackground IPC	RESOLVED	mozilla55	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][necko-quantum][PBg-HTTP-M2]
1320744	HttpChannelChild should implement nsIThreadRetargetableRequest	RESOLVED	mozilla55	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M1]
1325915	remove invocation order dependency on OnProgress and OnDataAvailable in HttpChannelParent	RESOLVED	mozilla54	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M1]
1338493	move HttpChannel IPC from main thread to STS thread in content process	RESOLVED	mozilla56	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M3]
1344634	Add telemetry for monitoring PBackground-Http performance	RESOLVED	---		[necko-next]
1357678	Streamconverters (including decompressing) block off-main thread delivery?	RESOLVED	mozilla55	Dragana Damjanovic [:dragana]	[necko-active]
1357682	Get telemetry for off-main-thread delivery success/fail	RESOLVED	mozilla56	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M3]
1365519	nsUnknownDecoder block off-main thread delivery?	RESOLVED	mozilla56	Dragana Damjanovic [:dragana]	[necko-backlog]

8 Total; 0 Open (0%); 8 Resolved (100%); 0 Verified (0%);

M2 bugs

Full Query

ID	Summary	Status	Target milestone	Assigned to	Whiteboard
956218	Add a mechanism for communicating with a non-main I/O thread via thread and process links	RESOLVED	mozilla30	Ben Turner (not reading bugmail, use the needinfo flag!)
1102439	[PBackground] should close child-side PBackground before thread shutdown	RESOLVED	mozilla37	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[PBg-HTTP-M2]
1206665	make nsHttpChannel::OnDataAvailable thread-safe	RESOLVED	---		[necko-backlog][PBg-HTTP-M2]
1325915	remove invocation order dependency on OnProgress and OnDataAvailable in HttpChannelParent	RESOLVED	mozilla54	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M1]
1369878	Crash in mozilla::net::HttpBackgroundChannelParent::LinkToChannel	RESOLVED	mozilla55	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)
1370211	Assertion failure MOZ_ASSERT(!mTrackingScripts.Contains(aURL)) at nsIDocument::NoteScriptTrackingStatus	RESOLVED	---	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)

6 Total; 0 Open (0%); 6 Resolved (100%); 0 Verified (0%);

M3 bugs

Full Query

ID	Summary	Status	Target milestone	Assigned to	Whiteboard
1015466	Sending HTTP OnDataAvailable over PBackground IPC	RESOLVED	mozilla55	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][necko-quantum][PBg-HTTP-M2]
1381311	Intermittent Assertion failure: NS_IsMainThread(), at c:/builds/moz2_slave/m-cen-w32-d-000000000000000000/build/src/netwerk/protocol/http/HttpBackgroundChannelChild.cpp:455	RESOLVED	mozilla56	Shih-Chiang Chien [:schien] (UTC+8) (use ni? plz)	[necko-active][PBg-HTTP-M3]

2 Total; 0 Open (0%); 2 Resolved (100%); 0 Verified (0%);