accept that dev-deps don't need to be commented out, slight par tweaks

Author: coder543

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zapper"
-version = "0.1.7"
+version = "0.1.8"
 authors = ["Josh Leverette <coder543@gmail.com>"]
 license = "MIT"
 description = "lightning fast templating engine"
@@ -14,8 +14,6 @@ derive = ["zapper_derive"]
 zapper_derive = { version = "0.1.0", optional = true }
 rayon = { version = "1.0.1", optional = true }
 
-# uncomment if doing benchmarks
-# otherwise, it just slows down compilation of examples
 [dev-dependencies]
 criterion = "0.2.3"
 handlebars = "0.32.0"

benches/benchmark.rs

@@ -117,7 +117,7 @@ fn bench_zapper_par(c: &mut Criterion) {
     c.bench_function("zapper_par", move |b| {
         b.iter(|| {
             let mut output = Vec::new();
-            bytecode.par_render(&group, &mut output, 20).unwrap();
+            bytecode.par_render(&group, &mut output, 50).unwrap();
             output
         })
     });
@@ -133,7 +133,7 @@ fn bench_hbs(c: &mut Criterion) {
         .unwrap();
 
     let mut group = vec![];
-    for i in 0..100 {
+    for i in 0..1000 {
         group.push(Person {
             id: 12 + i,
             name: "Bob".to_string(),

src/bytecode.rs

@@ -80,7 +80,7 @@ impl<
     /// It is less efficient, but given the right par_chunk_size and right number
     /// of cores, it can increase total throughput.
     ///
-    /// A recommended starting point for par_chunk_size is 20.
+    /// A recommended starting point for par_chunk_size is 50.
     #[cfg(feature = "rayon")]
     pub fn par_render<'b, RunnerItem, Writer>(
         &self,
@@ -100,12 +100,14 @@ impl<
             .par_chunks(par_chunk_size)
             .map(|items| {
                 STORE.with(|(ref mut stack, ref mut buffer)| {
-                    let mut write_buf = Vec::with_capacity(8);
+                    let mut write_buf = Vec::with_capacity(8 * par_chunk_size);
+
                     for item in items {
                         self.render_with(item, &mut write_buf, stack, buffer)?;
                     }
                     output.lock().unwrap().write_all(&write_buf)?;
-                    return Ok(());
+
+                    Ok(())
                 })
             })
             .collect()