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e632e888b3abbfa80abe92a1f5df34b081bd93cc
scoutfs/tests/golden/data-prealloc
Auke Kok e632e888b3 Ramping up data preallocation 
Ramps up data preallocation based on the number of online
blocks. This results in a simple 2<<n block allocation pattern
until n=11 (2048) - the default value of data_prealloc_blocks.

Signed-off-by: Auke Kok <auke.kok@versity.com>
2026-04-14 10:59:40 -07:00

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== initial writes smaller than prealloc grow to prealloc size
/mnt/test/test/data-prealloc/file-1: extents: 7
/mnt/test/test/data-prealloc/file-2: extents: 7
== larger files get full prealloc extents
/mnt/test/test/data-prealloc/file-1: extents: 9
/mnt/test/test/data-prealloc/file-2: extents: 9
== non-streaming writes with contig have per-block extents
/mnt/test/test/data-prealloc/file-1: extents: 32
/mnt/test/test/data-prealloc/file-2: extents: 32
== any writes to region prealloc get full extents
/mnt/test/test/data-prealloc/file-1: extents: 8
/mnt/test/test/data-prealloc/file-2: extents: 8
/mnt/test/test/data-prealloc/file-1: extents: 8
/mnt/test/test/data-prealloc/file-2: extents: 8
== streaming offline writes get full extents either way
/mnt/test/test/data-prealloc/file-1: extents: 4
/mnt/test/test/data-prealloc/file-2: extents: 4
/mnt/test/test/data-prealloc/file-1: extents: 4
/mnt/test/test/data-prealloc/file-2: extents: 4
== goofy preallocation amounts work
/mnt/test/test/data-prealloc/file-1: extents: 6
/mnt/test/test/data-prealloc/file-2: extents: 6
/mnt/test/test/data-prealloc/file-1: extents: 10
/mnt/test/test/data-prealloc/file-2: extents: 10
/mnt/test/test/data-prealloc/file-1: extents: 3
/mnt/test/test/data-prealloc/file-2: extents: 3
== block writes into region allocs hole
wrote blk 24
wrote blk 32
wrote blk 40
wrote blk 55
wrote blk 63
wrote blk 71
wrote blk 72
wrote blk 79
wrote blk 80
wrote blk 87
wrote blk 88
wrote blk 95
before:
24.. 1:
32.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 0 at pos 0
wrote blk 0
0.. 1:
1.. 7: unwritten
24.. 1:
32.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 0 at pos 1
wrote blk 15
0.. 1:
1.. 14: unwritten
15.. 1:
24.. 1:
32.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 0 at pos 2
wrote blk 19
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
32.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 1 at pos 0
wrote blk 25
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 1 at pos 1
wrote blk 39
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 1 at pos 2
wrote blk 44
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 2 at pos 0
wrote blk 48
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 2 at pos 1
wrote blk 62
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
56.. 6: unwritten
62.. 1:
63.. 1:
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 2 at pos 2
wrote blk 67
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
56.. 6: unwritten
62.. 1:
63.. 1:
64.. 3: unwritten
67.. 1:
68.. 3: unwritten
71.. 2:
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 3 at pos 0
wrote blk 73
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
56.. 6: unwritten
62.. 1:
63.. 1:
64.. 3: unwritten
67.. 1:
68.. 3: unwritten
71.. 2:
73.. 1:
74.. 5: unwritten
79.. 2:
87.. 2:
95.. 1: eof
writing into existing 3 at pos 1
wrote blk 86
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
56.. 6: unwritten
62.. 1:
63.. 1:
64.. 3: unwritten
67.. 1:
68.. 3: unwritten
71.. 2:
73.. 1:
74.. 5: unwritten
79.. 2:
86.. 1:
87.. 2:
95.. 1: eof
writing into existing 3 at pos 2
wrote blk 92
0.. 1:
1.. 14: unwritten
15.. 1:
16.. 3: unwritten
19.. 1:
20.. 4: unwritten
24.. 1:
25.. 1:
26.. 6: unwritten
32.. 1:
39.. 1:
40.. 1:
44.. 1:
45.. 3: unwritten
48.. 1:
49.. 6: unwritten
55.. 1:
56.. 6: unwritten
62.. 1:
63.. 1:
64.. 3: unwritten
67.. 1:
68.. 3: unwritten
71.. 2:
73.. 1:
74.. 5: unwritten
79.. 2:
86.. 1:
87.. 2:
92.. 1:
93.. 2: unwritten
95.. 1: eof
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