875186 - IPDL processing is slow, uses no dependencies

Status: RESOLVED DUPLICATE of bug 629668

(Firefox Build System :: General, defect)

Description

[Gregory Szorc [:gps]]

As I was working on bug 868536, I noticed that IPDL processing is slow (it takes about 10s wall time on my machine) and doesn't use dependencies. The slowness is tolerable if we can't easily make it go any faster. What isn't tolerable is the lack of dependencies in this make file: we always perform the same IPDL processing for every .ipdl file on every |make -C ipc/ipdl export| invocation, even "no-op" builds.

We should modify ipdl.py to emit .pp dependency files. And, we should perform simple profiling of ipdl.py to see if we can find any bottlenecks to make processing faster.

Comment 1

[Gregory Szorc [:gps]]

I just remembered inbox search is better than bugzilla search. #fail.