diff options
Diffstat (limited to 'src/doc')
| -rw-r--r-- | src/doc/unstable-book/src/compiler-flags/dump-mono-stats-format.md | 6 | ||||
| -rw-r--r-- | src/doc/unstable-book/src/compiler-flags/dump-mono-stats.md | 14 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/doc/unstable-book/src/compiler-flags/dump-mono-stats-format.md b/src/doc/unstable-book/src/compiler-flags/dump-mono-stats-format.md new file mode 100644 index 00000000000..a497a75261f --- /dev/null +++ b/src/doc/unstable-book/src/compiler-flags/dump-mono-stats-format.md @@ -0,0 +1,6 @@ +# `dump-mono-stats-format` + +-------------------- + +The `-Z dump-mono-stats-format` compiler flag controls what file format to use for `-Z dump-mono-stats`. +The default is markdown; currently JSON is also supported. JSON can be useful for programatically manipulating the results (e.g. to find the item that took the longest to compile). diff --git a/src/doc/unstable-book/src/compiler-flags/dump-mono-stats.md b/src/doc/unstable-book/src/compiler-flags/dump-mono-stats.md new file mode 100644 index 00000000000..4c8bc8b4578 --- /dev/null +++ b/src/doc/unstable-book/src/compiler-flags/dump-mono-stats.md @@ -0,0 +1,14 @@ +# `dump-mono-stats` + +-------------------- + +The `-Z dump-mono-stats` compiler flag generates a file with a list of the monomorphized items in the current crate. +It is useful for investigating compile times. + +It accepts an optional directory where the file will be located. If no directory is specified, the file will be placed in the current directory. + +See also `-Z dump-mono-stats-format` and `-Z print-mono-items`. Unlike `print-mono-items`, +`dump-mono-stats` aggregates monomorphized items by definition and includes a size estimate of how +large the item is when codegened. + +See <https://rustc-dev-guide.rust-lang.org/backend/monomorph.html> for an overview of monomorphized items. |