umm… my _db_block_hash_buckets isn’t prime. In fact, it’s 11*(2^16).
Now, I probably wouldn’t much care, but my cache buffer chains are *long* with lots of contention (x$bh is showing 66 different blocks on some very key segments are all on a single chain, the one with the most contention, and it’s registered over 51k sleeps – ouch). I wanna double it and increment to the next prime (who does hashes with a non-prime number of slots anymore? sheesh), but it’s one of those internal params they swear you have to sacrifice 2 goats and a chicken to change without major threats *sigh*
Ugh – i’ll dig in more tomorrow
