Sep 20 – 24, 2021
US/Pacific timezone

Speculative page faults

Sep 22, 2021, 10:10 AM
Microconference3/Virtual-Room (LPC Virtual)


LPC Virtual

Android MC Android MC


Michel Lespinasse (Facebook)Mr Laurent Dufour


Most Android vendors currently ship kernels that include Laurent Dufour's speculative page fault patchset from about 2.5 years ago. The patch set was rejected upstream at that time, due to code complexity, but provides a significant benefit to application startup times. I have been working on a new spin on the same basic idea, and came up with a patchset version which is (IMO) simpler and more bisectable. I would like to discuss performance results and gauge what our options are for upstreaming this.

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Primary authors

Michel Lespinasse (Facebook) Mr Laurent Dufour

Presentation materials