Add scripts for running perf and callgrind.

Cargo.toml

@@ -40,10 +40,16 @@ tracing-subscriber = { version = "0.3.17", optional = true, features = ["env-fil
 walkdir = "2.3.3"
 
 [features]
-default = ["compare", "tracing"]
+default = ["compare"]
 compare = []
 tracing = ["dep:opentelemetry", "dep:opentelemetry-otlp", "dep:opentelemetry-semantic-conventions", "dep:tokio", "dep:tracing", "dep:tracing-opentelemetry", "dep:tracing-subscriber"]
 
-[profile.release]
+[profile.release-lto]
+inherits = "release"
 lto = true
 strip = "symbols"
+
+[profile.perf]
+inherits = "release"
+lto = true
+debug = true

scripts/callgrind.bash

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+#
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+cd "$DIR/../"
+
+RUSTFLAGS="-C opt-level=0" cargo build --no-default-features
+valgrind --tool=callgrind --callgrind-out-file=callgrind.out target/debug/compare
+
+echo "You probably want to run:"
+echo "callgrind_annotate --auto=yes callgrind.out"

scripts/perf.bash

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+#
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+: ${PROFILE:="perf"}
+
+cd "$DIR/../"
+
+cargo build --profile "$PROFILE" --no-default-features
+perf record --freq=2000 --call-graph dwarf --output=perf.data target/${PROFILE}/compare
+# Convert to a format firefox will read
+# flags to consider --show-info
+perf script -F +pid --input perf.data > perf.firefox
+
+echo "You probably want to go to https://profiler.firefox.com/"
+echo "Either that or run hotspot"

src/main.rs

@@ -1,8 +1,6 @@
 #![feature(round_char_boundary)]
-#[cfg(feature = "compare")]
 use std::io::Read;
 
-#[cfg(feature = "compare")]
 use ::organic::parser::document;
 #[cfg(feature = "compare")]
 use organic::compare_document;
@@ -37,14 +35,10 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 fn main_body() -> Result<(), Box<dyn std::error::Error>> {
-    #[cfg(not(feature = "compare"))]
-    let org_contents = "";
-    #[cfg(feature = "compare")]
     let org_contents = read_stdin_to_string()?;
     run_compare(org_contents)
 }
 
-#[cfg(feature = "compare")]
 fn read_stdin_to_string() -> Result<String, Box<dyn std::error::Error>> {
     let mut stdin_contents = String::new();
     std::io::stdin()
@@ -79,7 +73,9 @@ fn run_compare<P: AsRef<str>>(org_contents: P) -> Result<(), Box<dyn std::error:
 }
 
 #[cfg(not(feature = "compare"))]
-fn run_compare<P: AsRef<str>>(_org_contents: P) -> Result<(), Box<dyn std::error::Error>> {
-    println!("This program was built with compare disabled. Doing nothing.");
+fn run_compare<P: AsRef<str>>(org_contents: P) -> Result<(), Box<dyn std::error::Error>> {
+    eprintln!("This program was built with compare disabled. Dumping the AST from rust.");
+    let (remaining, rust_parsed) = document(org_contents.as_ref()).expect("Org Parse failure");
+    println!("{:#?}", rust_parsed);
     Ok(())
 }