| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> |
| Cc: | 席冲(宜穆) <xichong(dot)xc(at)alibaba-inc(dot)com>, pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: slru bank |
| Date: | 2024-08-23 02:27:42 |
| Message-ID: | 2116449.1724380062@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
"David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
> On Thu, Aug 22, 2024 at 7:07 PM 席冲(宜穆) <xichong(dot)xc(at)alibaba-inc(dot)com> wrote:
>> In SlruSelectLRUPage(), Why do we need to traverse all slots to find that
>> a page already has a buffer assigned? Why not find it
>> from the [bankstart,bankend]?
> Only the bank is searched, both of the logic loops are bounded by:
> for (int slotno = bankstart; slotno < bankend; slotno++)
I think the OP has rediscovered the bug already fixed in 7b063ff26.
That's post-17beta2, though.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Richard Guo | 2024-08-23 02:31:14 | Re: Redundant Result node |
| Previous Message | David G. Johnston | 2024-08-23 02:19:35 | Re: slru bank |