EngineeringProductivity/Projects/Debugging UX improvements

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This project is composed of multiple projects which will be improving the overall experience when debugging issues on try.

Q4's 2016 focus is mainly improving end to end times on Try (Thunder Try project).


The original discussions are discussed in here. The projects defined below are the ones we're considering tackling at this point.

P1 means that we're commiting to complete a bug within the current quarter. P2 means that it's nice to fix and we will tackle if we have time.

All possible projects - bugzilla tree dependency


We are trying to meet every four weeks. We will be posting details in the tools mailing list. Etherpad:

Dial-in information

 # This meeting will start at 10:00-10:50AM PDT 
 # Guest:
 # Vidyo:  A-Team Vidyo Room
 # Phone:  650-903-0800 or 650-215-1282 x92 Conf# 98416  (US/INTL)
 #         1-800-707-2533 (pin 369) Conf# 98416 (free for anyone to join)
 # IRC:    irc://

Project #1 - Thunder Try - Improve end to end times

Current main focus:

  • Artifact builds on try
  • Automation metrics
  • Better sscache for try
  • Hyper chunking
  • Web platform tests from source checkout


Tracked bugs (P1s are the ones we commit to for this quarter)

Full Query
ID Priority Summary Whiteboard Assigned to
1240644 P2 Allow skipping build and reusing existing build result for try push
1280641 P3 Implement a two-tier S3 cache for sccache [build-run-speed-up]
1284882 P3 [tracker] Artifact builds on automation
1315030 P3 Determine how many try pushes could benefit from using artifact builds
1432287 P3 [meta] Run tests from source checkouts in CI
1294706 -- "Mochitest other" chunk on win7 debug slow and often last to complete

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


Debugging tests on interactive workers

Developers can go from requesting a Linux loaner on TaskCluster to having a debugging environment ready to run tests in a reasonable time with minimal interaction with external documentation or need a minimum amount of help.

Tracked bugs (P1s are the ones we commit to for this quarter)

Full Query
ID Priority Summary Whiteboard Assigned to
1271677 P2 Interactive tasks should be scheduled with high priority
1284998 P2 Create tests for interactive debugging workflows
1302520 P3 Support running jittest from an interactive worker
1303031 P3 Support running Android xpcshell tests on interactive loaners
1302518 -- Support running cppunittests from an interactive worker
1302519 -- Support running gtest from an interactive worker

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