runtime: adding timestamps

Author: ibhatt-jumptrading

src/flamenco/runtime/fd_runtime.c

@@ -1188,6 +1188,8 @@ fd_runtime_commit_txn( fd_runtime_t *      runtime,
                        fd_txn_in_t const * txn_in,
                        fd_txn_out_t *      txn_out ) {
 
+  txn_out->details.commit_start_timestamp = fd_tickcount();
+
   fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
 
   if( FD_UNLIKELY( txn_out->err.txn_err ) ) {
@@ -1314,6 +1316,10 @@ fd_runtime_prepare_and_execute_txn( fd_runtime_t *       runtime,
                                     fd_txn_in_t const *  txn_in,
                                     fd_txn_out_t *       txn_out ) {
 
+  txn_out->details.prep_start_timestamp   = fd_tickcount();
+  txn_out->details.exec_start_timestamp   = LONG_MAX;
+  txn_out->details.commit_start_timestamp = LONG_MAX;
+
   txn_out->accounts.accounts_cnt   = 0UL;
 
   txn_out->details.programs_to_reverify_cnt       = 0UL;
@@ -1346,6 +1352,8 @@ fd_runtime_prepare_and_execute_txn( fd_runtime_t *       runtime,
      fees-only, we return early. */
   txn_out->err.txn_err = fd_runtime_pre_execute_check( runtime, bank, txn_in, txn_out );
 
+  txn_out->details.exec_start_timestamp = fd_tickcount();
+
   /* Execute the transaction. */
   if( FD_LIKELY( txn_out->err.is_committable && !txn_out->err.is_fees_only ) ) {
     txn_out->err.txn_err = fd_execute_txn( runtime, bank, txn_in, txn_out );

src/flamenco/runtime/fd_runtime.h

@@ -174,6 +174,9 @@ struct fd_txn_out {
     ulong                       priority_fee;                   /* Priority fee paid by the fee payer in the transaction */
     ulong                       tips;                           /* Jito tips paid during execution */
     ulong                       signature_count;                /* Number of signatures in the transaction */
+    long                        prep_start_timestamp;
+    long                        exec_start_timestamp;
+    long                        commit_start_timestamp;
     /* When a program is deployed or upgraded, we must queue it to be
         updated in the program cache (if it exists already) so that
         the cache entry's ELF / sBPF information can be updated for