tree de6cfc1ed01dc8bb10f24a37c6e4c3c3c0480fbb
parent 369501d8aa7af1ff9f91cbc87bd895cd185d14be
author Tracy Zhou <tracyzhou@google.com> 1594707180 -0700
committer Tracy Zhou <tracyzhou@google.com> 1594769403 +0000

Improve grid preview performance

After breaking down the time we spend in rendering preview under a different grid setting, I found out that we spend a huge amount of time loading the workspace. It takes a long time in non preview case (launcher workspace init), so to optimize we should try to cut down things that are not necessary for preview. Widget model loading (widget and shortcut updates) takes half of the time, and can be optimized with minimal risks / code changes.

Bug: 160662425
Test: Manual

Change-Id: I89029d0ddf6e2517077a0ba3fbbcfdcd60b268d9