High memory usage when compiling ent-generated files.

[udit9576]

Current Behavior 😯

When Ent generates models/entities for the schema, it creates them in a single directory and the go compiler compiles the same in a single process. When the ent-generated files are being compiled, it takes a lot of memory and time.

Having defined schema for around 300 tables, no. of files generated is proportionally large and the go compiler takes a lot of time and memory to compile, even causing the server to go out of memory sometimes.

Your Environment 🌎

Current Server Configuration: 8Gib RAM

Tech	Version
Go	1.19
Ent	0.12.3
Database	MySQL
Driver	https://github.com/go-sql-driver/mysql

[a8m]

Hey @udit9576 👋

Having defined schema for around 300 tables, no. of files generated is proportionally large and the go compiler takes a lot of time and memory to compile, even causing the server to go out of memory sometimes.

Thanks for reporting this. I haven't encountered such a failure before, even though we built Ent for projects with more than this number of schemas (and actually used it). But I guess that in some environments it's possible, especially when the number of dependencies is high.

I have plans to support one generated.go file for the ent/ directory, but it's not on my desk atm. To unblock yourself, you can use/write a codegen hook to process the files and squash them into one file. See: https://entgo.io/docs/code-gen#code-generation-hooks

[udit9576]

Tried squashing the generated files into one generated.go file, but I am still facing the same issue. Can you please provide me with an alternative solution for the same.

[mkraft]

@udit9576 Did you ever resolve your issue?