diff --git a/src/main.rs b/src/main.rs
index 304ffda..126042c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -12,6 +12,8 @@ use x25519_dalek::StaticSecret;
 use zerocopy::byteorder::U32;
 use zerocopy::{AsBytes, FromBytes, FromZeroes};
 
+const SAMPLE_SIZE: usize = 100_000;
+
 const SIZE_TAG: usize = 16; // poly1305 tag
 const SIZE_X25519_POINT: usize = 32; // x25519 public key
 const SIZE_TIMESTAMP: usize = 12;
@@ -124,7 +126,7 @@ struct Record {
 fn main() -> Result<()> {
     let mut wtr = csv::Writer::from_writer(io::stdout());
 
-    for _ in 0..1_000_000 {
+    for _ in 0..SAMPLE_SIZE {
         wtr.serialize(Record {
             time: perform_handshake()?,
         })?;