Running PHP fast at the edge with WebAssembly

Re:Running PHP fast at the edge with WebAssembly by lxgr on Thursday May 23, 2024 @06:33PM (#40460681)

“Containers are not a sandboxing mechanism”, I hear reasonably often (although that seems surmountable at least in theory?).

VMs are cheap, but not “let’s run thousands of them on ‘the edge’ in case we get a request for any of them!” cheap.

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Re:Running PHP fast at the edge with WebAssembly by fhuici on Friday May 24, 2024 @08:33AM (#40465525)

On kraft.cloud we can (done internal stress tests for this) run thousands of specialized VMs (aka unikernels) scaled to zero, meaning that when a request for one of them arrives we can wake it up and respond within the timescales of an RTT. You can take it out for a spin, just use the -0 flag when deploying to do scale to 0 (https://docs.kraft.cloud/guides/features/scaletozero/).

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Re:Running PHP fast at the edge with WebAssembly by lxgr on Friday May 24, 2024 @11:49AM (#40467372)

Interesting – are we talking actual Linux VMs here, with binary-compatible syscalls etc., or something that applications need to be specifically built or packaged for in some way?

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