| From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
|---|---|
| To: | Jeff Davis <pgsql(at)j-davis(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: logtape.c stats don't account for unused "prefetched" block numbers |
| Date: | 2020-09-14 21:24:54 |
| Message-ID: | CAH2-Wzn6pGXE-0vwwVbGZ--+qACd8D0ArqfZx7k05XaibAaFrQ@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Sep 11, 2020 at 6:37 PM Peter Geoghegan <pg(at)bowt(dot)ie> wrote:
> It would be awkward if we just used nBlocksWritten within
> LogicalTapeSetBlocks() in the case where we didn't preallocate (or in
> all cases). Not entirely sure what to do about that just yet.
I guess that that's the logical thing to do, as in the attached patch.
What do you think, Jeff?
--
Peter Geoghegan
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-LogicalTapeSetBlocks-issue-Tentative-fix.patch | application/octet-stream | 2.3 KB |
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