Commit049d9b8

committed

Improve comment for struct BufferDesc.

Add a note that per-buffer I/O condition variables currently liveoutside the BufferDesc struct. Follow-up for commitd872510.Reported-by: Julien Rouhaud <rjuju123@gmail.com>Discussion:https://postgr.es/m/20210311031118.hucytmrgwlktjxgq%40nol

1 parent2950ff3 commit049d9b8Copy full SHA for 049d9b8

File tree

-0

lines changed

-0

lines changed

Lines changed: 4 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -174,6 +174,10 @@ typedef struct buftag`
`174`	`174`	`* Be careful to avoid increasing the size of the struct when adding or`
`175`	`175`	`* reordering members. Keeping it below 64 bytes (the most common CPU`
`176`	`176`	`* cache line size) is fairly important for performance.`
	`177`	`+ *`
	`178`	`+ * Per-buffer I/O condition variables are currently kept outside this struct in`
	`179`	`+ * a separate array. They could be moved in here and still fit within that`
	`180`	`+ * limit on common systems, but for now that is not done.`
`177`	`181`	`*/`
`178`	`182`	`typedefstructBufferDesc`
`179`	`183`	`{`

Comments

(0)