On Mon, Jun 10, 2024 at 05:48:22PM +0000, Bertrand Drouvot wrote: > On Mon, Jun 10, 2024 at 10:36:42AM -0500, Nathan Bossart wrote: >> I wonder if we should also >> surface the effective cost limit for each autovacuum worker. > > I'm not sure about it as I think that it could be misleading: one could query > pg_stat_progress_vacuum and conclude that the time_delayed he is seeing is > due to _this_ cost_limit. But that's not necessary true as the cost_limit > could > have changed multiple times since the vacuum started. So, unless there is > frequent sampling on pg_stat_progress_vacuum, displaying the time_delayed and > the cost_limit could be misleadind IMHO.
Well, that's true for the delay, too, right (at least as of commit 7d71d3d)? -- nathan
