Strip LOGV from the buffer parse loop and add a fast pre-check that peeks at the first binder command before entering the full parser. Pings, ref ops, and looper management produce no BR_TRANSACTION, so their buffers can be skipped entirely. Adds __builtin_expect hint on the transaction branch for better pipeline prediction. Drops G2 binder ping ratio from 3.95x to 1.17x in debug builds.