linanqinqin/snapfaas-images

rootfs

rootfs contains four subdirectories, namely common, fullapp, regular, and snapfaas.

Directory common contain files that are common to the rest three directories each of which represents a style of booting a guest VM.

Directory fullapp contains code and scripts to generate root file systems each of which contains both a language runtime and an application. All wrapper scripts contain one snapshotting point.

Directory regular contains code and scripts to generate root file systems each of which contains both a language runtime and an application. The difference between regular and fullapp is that regular runtime wrapper scripts contain no snapshotting point. Otherwise, the two are the same.

Directory snapfaas contains code and scripts to generate root file systems each of which contains just one language runtime and no application code. snapfaas runtime wrapper scripts expects a second file system, i.e. appfs, which contains application code and mounts it to /srv. All wrapper scripts contain two snapshotting point. The first is for generating language snapshot and the second is for generating diff snapshot.

Note that snapfaas contains some special runtimes that are only intended for special measurements. See snapfaas/README.md.

appfs

Directory appfs contains serverless functions:

1. Python3 functions are under appfs/python3.
2. Node.js functions are under appfs/nodejs.

Each directory in appfs/$runtime is a serverless function containing files and a Makefile to build the filesystem for the function.

Each app directory that begins with "." are apps that snapfaas/microbenchmark will skip.