On Monday, 11 July 2022 at 22:16:05 UTC, ryuukk_ wrote:
LDC clean full rebuild
```
$ time dub build -f --compiler=ldc2
Performing "debug" build using ldc2 for x86_64.
game ~master: building configuration "desktop"...
Linking...
real 0m18.033s
user 0m0.000s
sys 0m0.015s
```
DMD clean full rebuild
```
$ time dub build -f --compiler=dmd
Performing "debug" build using dmd for x86_64.
game ~master: building configuration "desktop"...
Linking...
real 0m1.348s
user 0m0.031s
sys 0m0.015s
```
BTW, I'm very curious about investigating the reason for such
huge build time difference, but can't reproduce it on my
computer. For example, compiling the DUB source code itself via
the same DUB commands only results in DMD showing roughly twice
faster build times (which is great, but nowhere close to ~13x
difference):
```
$ git clone https://github.com/dlang/dub.git
$ cd dub
```
```
$ time dub build -f --compiler=ldc2
Performing "debug" build using ldc2 for x86_64.
dub 1.29.1+commit.38.g7f6f024f: building configuration
"application"...
Serializing composite type Flags!(BuildRequirement) which has no
serializable fields
Serializing composite type Flags!(BuildOption) which has no
serializable fields
Linking...
real 0m34.371s
user 0m32.883s
sys 0m1.488s
```
```
$ time dub build -f --compiler=dmd
Performing "debug" build using dmd for x86_64.
dub 1.29.1+commit.38.g7f6f024f: building configuration
"application"...
Serializing composite type Flags!(BuildRequirement) which has no
serializable fields
Serializing composite type Flags!(BuildOption) which has no
serializable fields
Linking...
real 0m14.078s
user 0m12.941s
sys 0m1.129s
```
Is there an open source DUB package, which can be used to
reproduce a huge build time difference between LDC and DMD?
