Now that 3-tier PGO uses a debian9 image to generate the profile data
(bug 1519424), we no longer see the XDG_RUNTIME_DIR failures in the run
task. The frequency of those errors was the primary blocker for enabling
3-tier PGO in the first place. Since we still see those errors
occasionally in 1-tier PGO, we should switch to the 3-tier model for
Linux.
Differential Revision: https://phabricator.services.mozilla.com/D27326
--HG--
extra : moz-landing-system : lando
This introduces a mozharness script, android_emulator_pgo.py, to run the
profileserver suite with the PGO-instrumented Android build, and collect
the profile data and jarlog.
The mozharness script contains some redundancy with
build/pgo/profileserver.py, but the additional requirements for Android
to use adb and existing mozharness classes to control the emulator made
it difficult to share the desktop profileserver implementation.
Differential Revision: https://phabricator.services.mozilla.com/D22825
--HG--
extra : source : c151ebf303cad175e24bcc0965c800a9d12ecb3b
This introduces a mozharness script, android_emulator_pgo.py, to run the
profileserver suite with the PGO-instrumented Android build, and collect
the profile data and jarlog.
The mozharness script contains some redundancy with
build/pgo/profileserver.py, but the additional requirements for Android
to use adb and existing mozharness classes to control the emulator made
it difficult to share the desktop profileserver implementation.
Differential Revision: https://phabricator.services.mozilla.com/D22825
--HG--
extra : moz-landing-system : lando
The new debian9 build image appears to fix the errors connecting to the
X server when running Firefox to generate profile data for PGO builds
(bug 1516114). By updating the image here and leaving 3-tier PGO
disabled, we can see if the generate-profile tasks intermittents go away
while 1-tier intermittents persist to know for sure that this fixes the
problem.
Differential Revision: https://phabricator.services.mozilla.com/D16321
--HG--
extra : moz-landing-system : lando
Two new kinds are introduced - 'instrumented-build' and
'generate-profile'. The instrumented-build kind is almost identical to
the build kind, except it can be used earlier in the task graph. The
3-tier PGO process becomes:
instrumented-build -> generate-profile -> build
The final build stage is identical to any other build, except it has
the 'use-pgo' flag set to True in its task definition. This flag causes
the transforms to add the instrumented-build and generate-profile tasks
to the taskgraph.
Differential Revision: https://phabricator.services.mozilla.com/D15750
--HG--
extra : moz-landing-system : lando
Tom Prince
Mike Shal
Noemi Erli