1 files changed, 94 insertions, 0 deletions
diff --git a/benches/bench.rs b/benches/bench.rs
new file mode 100644
index 0000000..2aa24a9
--- /dev/null
+++ b/benches/bench.rs
@@ -0,0 +1,94 @@
+#![feature(test)]
+
+extern crate test;
+
+use test::Bencher;
+
+use csv_core::{Reader, ReaderBuilder};
+
+static NFL: &'static str = include_str!("../../examples/data/bench/nfl.csv");
+static GAME: &'static str = include_str!("../../examples/data/bench/game.csv");
+static POP: &'static str =
+    include_str!("../../examples/data/bench/worldcitiespop.csv");
+static MBTA: &'static str =
+    include_str!("../../examples/data/bench/gtfs-mbta-stop-times.csv");
+
+macro_rules! bench {
+    ($name:ident, $data:ident, $counter:ident, $result:expr) => {
+        bench!($name, $data, $counter, $result, false);
+    };
+    ($name:ident, $data:ident, $counter:ident, $result:expr, NFA) => {
+        bench!($name, $data, $counter, $result, true);
+    };
+    ($name:ident, $data:ident, $counter:ident, $result:expr, $nfa:expr) => {
+        #[bench]
+        fn $name(b: &mut Bencher) {
+            let data = $data.as_bytes();
+            b.bytes = data.len() as u64;
+            let mut rdr = ReaderBuilder::new().nfa($nfa).build();
+            b.iter(|| {
+                rdr.reset();
+                assert_eq!($counter(&mut rdr, data), $result);
+            })
+        }
+    };
+}
+
+bench!(count_nfl_field_copy_dfa, NFL, count_fields, 130000);
+bench!(count_nfl_field_copy_nfa, NFL, count_fields, 130000, NFA);
+bench!(count_nfl_record_copy_dfa, NFL, count_records, 10000);
+bench!(count_nfl_record_copy_nfa, NFL, count_records, 10000, NFA);
+
+bench!(count_game_field_copy_dfa, GAME, count_fields, 600000);
+bench!(count_game_field_copy_nfa, GAME, count_fields, 600000, NFA);
+bench!(count_game_record_copy_dfa, GAME, count_records, 100000);
+bench!(count_game_record_copy_nfa, GAME, count_records, 100000, NFA);
+
+bench!(count_pop_field_copy_dfa, POP, count_fields, 140007);
+bench!(count_pop_field_copy_nfa, POP, count_fields, 140007, NFA);
+bench!(count_pop_record_copy_dfa, POP, count_records, 20001);
+bench!(count_pop_record_copy_nfa, POP, count_records, 20001, NFA);
+
+bench!(count_mbta_field_copy_dfa, MBTA, count_fields, 90000);
+bench!(count_mbta_field_copy_nfa, MBTA, count_fields, 90000, NFA);
+bench!(count_mbta_record_copy_dfa, MBTA, count_records, 10000);
+bench!(count_mbta_record_copy_nfa, MBTA, count_records, 10000, NFA);
+
+fn count_fields(rdr: &mut Reader, mut data: &[u8]) -> u64 {
+    use csv_core::ReadFieldResult::*;
+
+    let mut count = 0;
+    let mut field = [0u8; 1024];
+    loop {
+        let (res, nin, _) = rdr.read_field(data, &mut field);
+        data = &data[nin..];
+        match res {
+            InputEmpty => {}
+            OutputFull => panic!("field too large"),
+            Field { .. } => {
+                count += 1;
+            }
+            End => break,
+        }
+    }
+    count
+}
+
+fn count_records(rdr: &mut Reader, mut data: &[u8]) -> u64 {
+    use csv_core::ReadRecordResult::*;
+
+    let mut count = 0;
+    let mut record = [0; 8192];
+    let mut ends = [0; 32];
+    loop {
+        let (res, nin, _, _) = rdr.read_record(data, &mut record, &mut ends);
+        data = &data[nin..];
+        match res {
+            InputEmpty => {}
+            OutputFull | OutputEndsFull => panic!("field too large"),
+            Record => count += 1,
+            End => break,
+        }
+    }
+    count
+}