Skip to content
Trending storyDeveloping

Modal builds new filesystem stack to keep VM Sandboxes fast

1 article1 sourcesince Oct 16Last article 1h ago ·

Overview

AISummary of 1 article

Modal says it built a new filesystem stack so its VM Sandboxes keep sub-second cold starts without losing performance.

The stack lets a VM's ext4 driver treat Modal's lazily loaded ImageFS as a normal disk. Modal has published an engineering write-up describing the challenges and decisions behind the design. The report is a Modal announcement on X and does not include independent benchmark figures.

Written by AI from the articles below · updated Oct 16, 2:01 PM ET

Check the sources:

Latest developmentOct 16, 1:59 PM ET
Modal builds new filesystem stack to keep VM Sandboxes fast

Article timeline

The articles in this story. Times are ET.

Oct 16
  1. ModalOfficial
    Modal builds new filesystem stack to keep VM Sandboxes fast

    AIModal says it built a new filesystem stack so its VM Sandboxes keep sub-second cold starts without losing performance. The stack makes a VM's ext4 driver treat Modal's lazily loaded ImageFS as a normal disk. Modal has published an engineering write-up on the challenges and decisions behind it.

Heat trend

Not enough continuous observations to show a trend yet.