Faster cold start with V8 snapshots

[jasonkuhrt]

Perceived Problem

• Cold start time is over half a second
• Combined with serverless platform, TTFB latency will easily exceed 1s in many cases
• And this is before any real app logic kicks in, db etc.

Ideas / Proposed Solution(s)

• Use V8 snapshots
• Have them include the schema built state
• Nexus build can automatically create them for the user
• Use lambda custom runtime to embed the v8 snapshot https://docs.aws.amazon.com/lambda/latest/dg/runtimes-custom.html

Links

• https://twitter.com/JedWatson/status/1242813629780484096
• https://docs.aws.amazon.com/lambda/latest/dg/runtimes-custom.html

[russell-dot-js]

Commmented on #295 also

I'm definitely interested in your progress with this -- custom runtimes with V8 Snapshots sounds like a huge win (but also sounds like something the AWS Lambda team easily can and probably should do on their own, considering end users are not charged for init time)