Add option to wait for a specific epoch length to bench-tps (#10083)

client/src/thin_client.rs

@@ -11,6 +11,7 @@ use solana_sdk::{
     client::{AsyncClient, Client, SyncClient},
     clock::MAX_PROCESSING_AGE,
     commitment_config::CommitmentConfig,
+    epoch_info::EpochInfo,
     fee_calculator::{FeeCalculator, FeeRateGovernor},
     hash::Hash,
     instruction::Instruction,
@@ -518,6 +519,10 @@ impl SyncClient for ThinClient {
         Ok(slot)
     }
 
+    fn get_epoch_info(&self) -> TransportResult<EpochInfo> {
+        self.rpc_client().get_epoch_info().map_err(|e| e.into())
+    }
+
     fn get_transaction_count(&self) -> TransportResult<u64> {
         let index = self.optimizer.experiment();
         let now = Instant::now();