add load generator

sz-poc-offsite-2025/evm/load/load.js

@@ -0,0 +1,31 @@
+// load-script-rate.js
+import { ethers } from "ethers";
+
+const sleep = (ms) => new Promise(resolve => setTimeout(resolve, ms));
+
+async function main() {
+    const provider = new ethers.JsonRpcProvider("http://localhost:8545");
+    const sender = ethers.Wallet.fromPhrase(
+        "test test test test test test test test test test test junk"
+    ).connect(provider);
+
+    const to = "0x1000000000000000000000000000000000000000";
+    const value = ethers.parseEther("0.01");
+    const maxTxs = 10000;   // total number of txs to send
+
+    console.log(`Sending up to ${maxTxs} txs at ~1 tx/s…`);
+    let nonce = await provider.getTransactionCount(sender.address);
+
+    for (let i = 0; i < maxTxs; i++) {
+        // fire‐and‐forget each sendTransaction
+        sender.sendTransaction({ to, value, gasLimit: 21_000, nonce: nonce + i })
+            .then(tx => console.log(`  → tx #${i} sent: ${tx.hash}`))
+            .catch(err => console.error(`  ! error on tx #${i}:`, err));
+
+        await sleep(1000);
+    }
+
+    console.log("Done scheduling txs.");
+}
+
+main().catch(console.error);

sz-poc-offsite-2025/evm/load/package.json

@@ -0,0 +1,3 @@
+{
+    "type": "module"
+}