diff --git a/bench_vec.rs b/bench_vec.rs
index c94ca505..0225f58f 100644
--- a/bench_vec.rs
+++ b/bench_vec.rs
@@ -1,8 +1,9 @@
+use std::fmt::Show;
 use test::Bencher;
 
-use serialize::Decodable;
+use serialize::{Decoder, Decodable};
 
-use de::{Deserializable};
+use de::{Deserializer, Deserializable};
 
 //////////////////////////////////////////////////////////////////////////////
 
@@ -21,6 +22,7 @@ mod decoder {
     use super::{Error, EndOfStream, SyntaxError};
 
     pub struct IntsDecoder {
+        len: uint,
         iter: vec::MoveItems<int>,
     }
 
@@ -28,7 +30,8 @@ mod decoder {
         #[inline]
         pub fn new(values: Vec<int>) -> IntsDecoder {
             IntsDecoder {
-                iter: values.move_iter()
+                len: values.len(),
+                iter: values.move_iter(),
             }
         }
     }
@@ -105,7 +108,7 @@ mod decoder {
 
         #[inline]
         fn read_seq<T>(&mut self, f: |&mut IntsDecoder, uint| -> Result<T, Error>) -> Result<T, Error> {
-            f(self, 3)
+            f(self, self.len)
         }
         #[inline]
         fn read_seq_elt<T>(&mut self, _idx: uint, f: |&mut IntsDecoder| -> Result<T, Error>) -> Result<T, Error> {
@@ -194,26 +197,70 @@ mod deserializer {
 
 //////////////////////////////////////////////////////////////////////////////
 
+fn run_decoder<
+    E: Show,
+    D: Decoder<E>,
+    T: Clone + Eq + Show + Decodable<D, E>
+>(mut d: D, value: T) {
+    let v: T = Decodable::decode(&mut d).unwrap();
+
+    assert_eq!(value, v);
+}
+
+fn run_deserializer<
+    E: Show,
+    D: Deserializer<E>,
+    T: Clone + Eq + Show + Deserializable<E, D>
+>(mut d: D, value: T) {
+    let v: T = Deserializable::deserialize(&mut d).unwrap();
+
+    assert_eq!(value, v);
+}
+
 #[bench]
-fn bench_ints_decoder(b: &mut Bencher) {
+fn bench_decoder_vec_int_000(b: &mut Bencher) {
     b.iter(|| {
-        let ints = vec!(5, 6, 7);
-
-        let mut d = decoder::IntsDecoder::new(ints);
-        let value: Vec<int> = Decodable::decode(&mut d).unwrap();
-
-        assert_eq!(value, vec!(5, 6, 7));
+        let v: Vec<int> = vec!();
+        run_decoder(decoder::IntsDecoder::new(v.clone()), v)
     })
 }
 
 #[bench]
-fn bench_ints_deserializer(b: &mut Bencher) {
+fn bench_deserializer_vec_int_000(b: &mut Bencher) {
     b.iter(|| {
-        let ints = vec!(5, 6, 7);
-
-        let mut d = deserializer::IntsDeserializer::new(ints);
-        let value: Vec<int> = Deserializable::deserialize(&mut d).unwrap();
-
-        assert_eq!(value, vec!(5, 6, 7));
+        let v: Vec<int> = vec!();
+        run_deserializer(deserializer::IntsDeserializer::new(v.clone()), v)
+    })
+}
+
+#[bench]
+fn bench_decoder_vec_int_003(b: &mut Bencher) {
+    b.iter(|| {
+        let v: Vec<int> = vec!(1, 2, 3);
+        run_decoder(decoder::IntsDecoder::new(v.clone()), v)
+    })
+}
+
+#[bench]
+fn bench_deserializer_vec_int_003(b: &mut Bencher) {
+    b.iter(|| {
+        let v: Vec<int> = vec!(1, 2, 3);
+        run_deserializer(deserializer::IntsDeserializer::new(v.clone()), v)
+    })
+}
+
+#[bench]
+fn bench_decoder_vec_int_100(b: &mut Bencher) {
+    b.iter(|| {
+        let v: Vec<int> = range(0, 100).collect();
+        run_decoder(decoder::IntsDecoder::new(v.clone()), v)
+    })
+}
+
+#[bench]
+fn bench_deserializer_vec_int_100(b: &mut Bencher) {
+    b.iter(|| {
+        let v: Vec<int> = range(0, 100).collect();
+        run_deserializer(deserializer::IntsDeserializer::new(v.clone()), v)
     })
 }
diff --git a/de.rs b/de.rs
index 2c0c6385..e7de6cee 100644
--- a/de.rs
+++ b/de.rs
@@ -291,15 +291,16 @@ fn expect_rest_of_collection<
 >(d: &mut D, len: uint) -> Result<C, E> {
     let iter = d.by_ref().batch(|d| {
         let d = d.iter();
-            match d.next() {
-                Some(Ok(End)) => None,
-                Some(Ok(token)) => {
-                    let value: Result<T, E> = Deserializable::deserialize_token(d, token);
-                    Some(value)
-                }
-                Some(Err(e)) => Some(Err(e)),
-                None => Some(Err(d.end_of_stream_error())),
+
+        match d.next() {
+            Some(Ok(End)) => None,
+            Some(Ok(token)) => {
+                let value: Result<T, E> = Deserializable::deserialize_token(d, token);
+                Some(value)
             }
+            Some(Err(e)) => Some(Err(e)),
+            None => Some(Err(d.end_of_stream_error())),
+        }
     });
 
     result::collect_with_capacity(iter, len)
diff --git a/serde.rs b/serde.rs
index d3e2ae4e..09864cf7 100644
--- a/serde.rs
+++ b/serde.rs
@@ -14,8 +14,11 @@ extern crate serialize;
 pub mod de;
 //pub mod json;
 
+//#[cfg(test)]
+//pub mod bench_bytes;
+
 #[cfg(test)]
-pub mod bench_enum;
+//pub mod bench_enum;
 
 #[cfg(test)]
 //pub mod bench_struct;