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qemu/tests/qemu-iotests/154.out
Eric Blake fbaa6bb3d3 qcow2: Optimize write zero of unaligned tail cluster 
We've already improved discards to operate efficiently on the tail
of an unaligned qcow2 image; it's time to make a similar improvement
to write zeroes.  The special case is only valid at the tail
cluster of a file, where we must recognize that any sectors beyond
the image end would implicitly read as zero, and therefore should
not penalize our logic for widening a partial cluster into writing
the whole cluster as zero.

However, note that for now, the special case of end-of-file is only
recognized if there is no backing file, or if the backing file has
the same length; that's because when the backing file is shorter
than the active layer, we don't have code in place to recognize
that reads of a sector unallocated at the top and beyond the backing
end-of-file are implicitly zero.  It's not much of a real loss,
because most people don't use images that aren't cluster-aligned,
or where the active layer is a different size than the backing
layer (especially where the difference falls within a single cluster).

Update test 154 to cover the new scenarios, using two images of
intentionally differing length.

While at it, fix the test to gracefully skip when run as
./check -qcow2 -o compat=0.10 154
since the older format lacks zero clusters already required earlier
in the test.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170507000552.20847-11-eblake@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-05-11 14:28:07 +02:00

414 lines
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QA output created by 154
== backing file contains zeros ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 0
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 10240
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 17408
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 27648
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 4096, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 8192, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 12288, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 16384, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 20480, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 24576, "length": 8192, "depth": 0, "zero": true, "data": false},
{ "start": 32768, "length": 134184960, "depth": 1, "zero": true, "data": false}]
== backing file contains non-zero data before write_zeroes ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 32768
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 34816
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 32768
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 3072/3072 bytes at offset 33792
3 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 66560
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 67584
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 66560
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 65536
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 67584
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 32768, "depth": 1, "zero": true, "data": false},
{ "start": 32768, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 36864, "length": 28672, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 69632, "length": 134148096, "depth": 1, "zero": true, "data": false}]
== backing file contains non-zero data after write_zeroes ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 34816
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 33792
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 32768
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 34816
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 35840
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 44032
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 41984
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 44032
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 3072/3072 bytes at offset 40960
3 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 32768, "depth": 1, "zero": true, "data": false},
{ "start": 32768, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 36864, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 40960, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 45056, "length": 134172672, "depth": 1, "zero": true, "data": false}]
== write_zeroes covers non-zero data ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 5120
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 5120
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 4096/4096 bytes at offset 4096
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 14336
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 13312
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 4096/4096 bytes at offset 12288
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 21504
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 21504
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 4096/4096 bytes at offset 20480
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 30208
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 29696
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 4096/4096 bytes at offset 28672
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 4096, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 8192, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 12288, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 16384, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 20480, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 24576, "length": 4096, "depth": 1, "zero": true, "data": false},
{ "start": 28672, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 32768, "length": 134184960, "depth": 1, "zero": true, "data": false}]
== spanning two clusters, non-zero before request ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 32768
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 35840
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 32768
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 7168/7168 bytes at offset 33792
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 50176
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 52224
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 49152
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 50176
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 6144/6144 bytes at offset 51200
6 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 67584
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 68608
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 65536
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 67584
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 5120/5120 bytes at offset 68608
5 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 32768, "depth": 1, "zero": true, "data": false},
{ "start": 32768, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 36864, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 40960, "length": 8192, "depth": 1, "zero": true, "data": false},
{ "start": 49152, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 53248, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 57344, "length": 8192, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 69632, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 73728, "length": 134144000, "depth": 1, "zero": true, "data": false}]
== spanning two clusters, non-zero after request ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 37888
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 35840
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 5120/5120 bytes at offset 32768
5 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 37888
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 38912
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 55296
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 52224
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 6144/6144 bytes at offset 49152
6 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 55296
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 56320
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 1024/1024 bytes at offset 72704
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 68608
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 7168/7168 bytes at offset 65536
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 72704
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 32768, "depth": 1, "zero": true, "data": false},
{ "start": 32768, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 36864, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 40960, "length": 8192, "depth": 1, "zero": true, "data": false},
{ "start": 49152, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 53248, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 57344, "length": 8192, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 69632, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 73728, "length": 134144000, "depth": 1, "zero": true, "data": false}]
== spanning two clusters, partially overwriting backing file ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 4096/4096 bytes at offset 2048
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 2048/2048 bytes at offset 3072
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 0
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 2048
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 3072
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 5120
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 6144
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 8192, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 8192, "length": 134209536, "depth": 1, "zero": true, "data": false}]
== spanning multiple clusters, non-zero in first cluster ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 65536
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 7168/7168 bytes at offset 67584
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 65536
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 10240/10240 bytes at offset 67584
10 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 65536, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 69632, "length": 8192, "depth": 0, "zero": true, "data": false},
{ "start": 77824, "length": 134139904, "depth": 1, "zero": true, "data": false}]
== spanning multiple clusters, non-zero in intermediate cluster ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 70656
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 7168/7168 bytes at offset 67584
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 12288/12288 bytes at offset 65536
12 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 65536, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 12288, "depth": 0, "zero": true, "data": false},
{ "start": 77824, "length": 134139904, "depth": 1, "zero": true, "data": false}]
== spanning multiple clusters, non-zero in final cluster ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 75776
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 7168/7168 bytes at offset 67584
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 10240/10240 bytes at offset 65536
10 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 75776
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 65536, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 8192, "depth": 0, "zero": true, "data": false},
{ "start": 73728, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 77824, "length": 134139904, "depth": 1, "zero": true, "data": false}]
== spanning multiple clusters, partially overwriting backing file ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base
wrote 10240/10240 bytes at offset 66560
10 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 7168/7168 bytes at offset 67584
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 65536
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 66560
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 7168/7168 bytes at offset 67584
7 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 2048/2048 bytes at offset 74752
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 76800
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 65536, "depth": 1, "zero": true, "data": false},
{ "start": 65536, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 69632, "length": 4096, "depth": 0, "zero": true, "data": false},
{ "start": 73728, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
{ "start": 77824, "length": 134139904, "depth": 1, "zero": true, "data": false}]
== unaligned image tail cluster, no allocation needed ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134219776, "depth": 0, "zero": true, "data": false}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776
wrote 512/512 bytes at offset 134219264
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134219776, "depth": 0, "zero": true, "data": false}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776
wrote 1024/1024 bytes at offset 134218240
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134219776, "depth": 0, "zero": true, "data": false}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776
wrote 2048/2048 bytes at offset 134217728
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134219776, "depth": 0, "zero": true, "data": false}]
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134218752
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134219264
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 134218240
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 134217728
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": true, "data": false}]
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134219264
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 1024/1024 bytes at offset 134218240
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 2048/2048 bytes at offset 134217728
2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
2048/2048 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": true, "data": false}]
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134218752
wrote 1024/1024 bytes at offset 134217728
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 134218240
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134218240
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
1024/1024 bytes allocated at offset 128 MiB
[{ "start": 0, "length": 134217728, "depth": 0, "zero": true, "data": false},
{ "start": 134217728, "length": 1024, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
wrote 1024/1024 bytes at offset 134217728
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
1024/1024 bytes allocated at offset 128 MiB
read 1024/1024 bytes at offset 134217728
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 134217728, "depth": 0, "zero": true, "data": false},
{ "start": 134217728, "length": 1024, "depth": 0, "zero": true, "data": false, "offset": OFFSET}]
== unaligned image tail cluster, allocation required ==
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134218752
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 134218752
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1536/1536 bytes at offset 134218240
1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134218752
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134219776 backing_file=TEST_DIR/t.IMGFMT.base
wrote 512/512 bytes at offset 134218240
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134218240
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 134218752
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 512/512 bytes at offset 134219264
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134217728
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 512/512 bytes at offset 134218240
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 1024/1024 bytes at offset 134218752
1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
[{ "start": 0, "length": 134217728, "depth": 1, "zero": true, "data": false},
{ "start": 134217728, "length": 2048, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
*** done
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