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@mdcallag
Created August 26, 2025 19:20
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-- postgres 17.5
INFO: vacuuming "ib.public.sbtest1"
INFO: launched 0 parallel vacuum workers for index vacuuming (planned: 1)
INFO: finished vacuuming "ib.public.sbtest1": index scans: 1
pages: 0 removed, 298234 remain, 298058 scanned (99.94% of total)
tuples: 10624 removed, 10004525 remain, 0 are dead but not yet removable
removable cutoff: 1450147223, which was 1 XIDs old when operation ended
frozen: 2889 pages from table (0.97% of total) had 86232 tuples frozen
index scan needed: 132758 pages from table (44.51% of total) had 170893 dead item identifiers removed
index "sbtest1_pkey": pages: 27434 in total, 0 newly deleted, 0 currently deleted, 0 reusable
index "k_1": pages: 48575 in total, 0 newly deleted, 465 currently deleted, 465 reusable
I/O timings: read: 0.000 ms, write: 0.000 ms
avg read rate: 0.000 MB/s, avg write rate: 0.000 MB/s
buffer usage: 805538 hits, 0 misses, 0 dirtied
WAL usage: 409094 records, 0 full page images, 23566320 bytes
system usage: CPU: user: 2.26 s, system: 0.48 s, elapsed: 2.83 s
INFO: analyzing "public.sbtest1"
INFO: "sbtest1": scanned 30000 of 298234 pages, containing 1005940 live rows and 0 dead rows; 30000 rows in sample, 10000184 estimated total rows
VACUUM
--- postgres 18beta2
INFO: vacuuming "ib.public.sbtest1"
INFO: launched 0 parallel vacuum workers for index vacuuming (planned: 1)
INFO: finished vacuuming "ib.public.sbtest1": index scans: 1
pages: 0 removed, 298324 remain, 297119 scanned (99.60% of total), 8867 eagerly scanned
tuples: 6353 removed, 10020689 remain, 0 are dead but not yet removable
removable cutoff: 1446785447, which was 0 XIDs old when operation ended
frozen: 720 pages from table (0.24% of total) had 21791 tuples frozen
visibility map: 87107 pages set all-visible, 1761 pages set all-frozen (511 were all-visible)
index scan needed: 55543 pages from table (18.62% of total) had 60965 dead item identifiers removed
index "sbtest1_pkey": pages: 27500 in total, 0 newly deleted, 0 currently deleted, 0 reusable
index "k_1": pages: 48436 in total, 0 newly deleted, 351 currently deleted, 351 reusable
I/O timings: read: 0.000 ms, write: 0.000 ms
avg read rate: 0.000 MB/s, avg write rate: 0.000 MB/s
buffer usage: 726281 hits, 0 reads, 0 dirtied
WAL usage: 208857 records, 0 full page images, 11720552 bytes, 0 buffers full
system usage: CPU: user: 1.76 s, system: 0.40 s, elapsed: 2.16 s
INFO: analyzing "public.sbtest1"
INFO: "sbtest1": scanned 30000 of 298324 pages, containing 1004924 live rows and 0 dead rows; 30000 rows in sample, 9993098 estimated total rows
INFO: finished analyzing table "ib.public.sbtest1"
I/O timings: read: 0.000 ms, write: 0.000 ms
avg read rate: 0.000 MB/s, avg write rate: 0.000 MB/s
buffer usage: 30281 hits, 0 reads, 0 dirtied
WAL usage: 43 records, 0 full page images, 23330 bytes, 0 buffers full
system usage: CPU: user: 0.17 s, system: 0.01 s, elapsed: 0.18 s
VACUUM
--- postgres 18beta3
INFO: vacuuming "ib.public.sbtest1"
INFO: launched 0 parallel vacuum workers for index vacuuming (planned: 1)
INFO: finished vacuuming "ib.public.sbtest1": index scans: 1
pages: 0 removed, 297214 remain, 295367 scanned (99.38% of total), 6450 eagerly scanned
tuples: 20959 removed, 10062140 remain, 0 are dead but not yet removable
removable cutoff: 1429041396, which was 4 XIDs old when operation ended
new relfrozenxid: 1379041838, which is 3522288 XIDs ahead of previous value
frozen: 16101 pages from table (5.42% of total) had 487270 tuples frozen
visibility map: 279714 pages set all-visible, 17895 pages set all-frozen (599 were all-visible)
index scan needed: 246075 pages from table (82.79% of total) had 485569 dead item identifiers removed
index "sbtest1_pkey": pages: 27429 in total, 0 newly deleted, 0 currently deleted, 0 reusable
index "k_1": pages: 48430 in total, 0 newly deleted, 353 currently deleted, 353 reusable
I/O timings: read: 0.000 ms, write: 0.000 ms
avg read rate: 0.000 MB/s, avg write rate: 0.006 MB/s
buffer usage: 913234 hits, 0 reads, 3 dirtied
WAL usage: 632304 records, 3 full page images, 38852406 bytes, 1321 buffers full
system usage: CPU: user: 2.78 s, system: 0.84 s, elapsed: 3.85 s
INFO: analyzing "public.sbtest1"
INFO: "sbtest1": scanned 30000 of 297214 pages, containing 1009381 live rows and 0 dead rows; 30000 rows in sample, 10000072 estimated total rows
INFO: finished analyzing table "ib.public.sbtest1"
I/O timings: read: 0.000 ms, write: 0.049 ms
avg read rate: 0.000 MB/s, avg write rate: 0.082 MB/s
buffer usage: 30280 hits, 0 reads, 2 dirtied
WAL usage: 42 records, 0 full page images, 23238 bytes, 0 buffers full
system usage: CPU: user: 0.18 s, system: 0.00 s, elapsed: 0.18 s
VACUUM
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