Buildprof
Records every process and file access in a build
...It follows the full process tree across build systems, compilers, linkers, code generators, and arbitrary scripts. Users can inspect command lines, working directories, exit statuses, timing, and file accesses to find slow steps or gaps in parallelism. File relationships can be followed back to the processes that produced them. Optional integrations add internal timing data from Clang, LLD, and nightly Rust. Recordings are created locally and can be opened in the web interface without uploading trace data. Existing recordings can be explored on any platform even though capture currently requires Linux.