C comment: correct use of 64-"byte" cache line size

Reported-by: Kelly Min

Discussion: https://postgr.es/m/CAPSbxatOiQO90LYpSC3+svAU9-sHgDfEP4oFhcEUt_X=DqFA9g@mail.gmail.com

Backpatch-through: 9.5
This commit is contained in:
Bruce Momjian 2020-09-04 13:27:52 -04:00
parent afec6ba0ba
commit 7574af1e1b

View File

@ -203,7 +203,7 @@ typedef struct BufferDesc
* Note that local buffer descriptors aren't forced to be aligned - as there's
* no concurrent access to those it's unlikely to be beneficial.
*
* We use 64bit as the cache line size here, because that's the most common
* We use a 64-byte cache line size here, because that's the most common
* size. Making it bigger would be a waste of memory. Even if running on a
* platform with either 32 or 128 byte line sizes, it's good to align to
* boundaries and avoid false sharing.