use memo in create_memo_tx helper

Cargo.lock

@@ -387,6 +387,7 @@ dependencies = [
  "solana-sdk 1.15.0",
  "tokio",
  "tracing-subscriber",
+ "uuid",
 ]
 
 [[package]]
@@ -5232,6 +5233,15 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
 
+[[package]]
+name = "uuid"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1674845326ee10d37ca60470760d4288a6f80f304007d92e5c53bab78c9cfd79"
+dependencies = [
+ "getrandom 0.2.8",
+]
+
 [[package]]
 name = "valuable"
 version = "0.1.0"

bench/Cargo.toml

@@ -15,3 +15,5 @@ clap = { version = "4.1.6", features = ["derive"] }
 tokio = { version = "1.25.0", features = ["full", "fs"]} 
 tracing-subscriber = "0.3.16"
 dirs = "4.0.0"
+uuid = { version = "1.3.0", features = ["v4"] }
+

bench/src/helpers.rs

@@ -70,7 +70,7 @@ impl BenchHelper {
     ) -> Vec<Transaction> {
         (0..num_of_txs)
             .into_iter()
-            .map(|_| Self::create_memo_tx(b"hello", funded_payer, blockhash))
+            .map(|_| Self::create_memo_tx( uuid::Uuid::new_v4().as_bytes(), funded_payer, blockhash))
             .collect()
     }