At Fri, 28 Jul 2023 10:36:46 +0000, "Daniel Westermann (DWE)" <daniel.westermann@xxxxxxxxxxxxxxxx> wrote in > postgres=# insert into t select i, md5(i::text), md5(i::text), md5(i::text) from generate_series(1,1000000) i; .. > client backend | 207 | normal > client backend | 0 | vacuum > > Shouldn't these evictions show up under context blkwrite? The description in docs is: No, that's not the case because INSERT doesn't execute a bulk write. It is is only performed during COPY FROM, and the write side of some other comands, such as CREATE AS (and some internal table-copy operations.). > As far as I understand this, a ring buffer is used in this case. Do I miss something? Maybe you're confusiong it with bulk-read cases? regards. -- Kyotaro Horiguchi NTT Open Source Software Center
