RE: 8192 BLCKSZ ?]
Andrew Snow <andrew@modulus.org>
From: "Andrew Snow" <andrew@modulus.org>
To: <pgsql-hackers@postgresql.org>
Date: 2000-12-01T23:52:44Z
Lists: pgsql-hackers
> The cost difference between 32K vs 8K disk reads/writes are so small > these days when compared with overall cost of the disk operation itself, > that you can even measure it, well below 1%. Remember seek times > advertised on disks are an average. It has been said how small the difference is - therefore in my opinion it should remain at 8KB to maintain best average performance with all existing platforms. I say its best let the OS and mass storage subsystem worry about read-ahead caching and whether they actually read 8KB off the disk, or 32KB or 64KB when we ask for 8. - Andrew