A DNS name compression algorithm – Tony FinchIn our previous episode, I optimized tolower() using SWAR tricks. That was in fact a side-quest to a side-quest to a side-quest. The first side-quest was trying out a new DNS name compression algorithm; in BIND, compression is performance-critical and a heavy user of tolower(), which is what set me off on the second and third side-quests. Now let’s pop the stack, and talk about DNS names. names on
