f93e65ee51
As the previous commit changes the logic of "qemu-img rebase" (it's using
write alignment now), let's add a couple more test cases which would
ensure it works correctly. In particular, the following scenarios:
024: add test case for rebase within one backing chain when the overlay
cluster size > backings cluster size;
271: add test case for rebase images that contain subclusters. Check
that no extra allocations are being made.
Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Message-ID: <20230919165804.439110-7-andrey.drobyshev@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
248 lines
9.4 KiB
Plaintext
248 lines
9.4 KiB
Plaintext
QA output created by 024
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Creating backing file
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Formatting 'TEST_DIR/t.IMGFMT.base_old', fmt=IMGFMT size=1073741824
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=== IO: pattern 0x11
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wrote 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 131072
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 393216
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 524288
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 655360
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 786432
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 917504
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Creating new backing file
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Formatting 'TEST_DIR/t.IMGFMT.base_new', fmt=IMGFMT size=1073741824
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=== IO: pattern 0x22
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wrote 131072/131072 bytes at offset 0
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 131072/131072 bytes at offset 262144
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 131072/131072 bytes at offset 524288
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 131072/131072 bytes at offset 786432
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Creating COW image
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824 backing_file=TEST_DIR/t.IMGFMT.base_old backing_fmt=IMGFMT
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=== IO: pattern 0x33
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wrote 262144/262144 bytes at offset 0
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256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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wrote 262144/262144 bytes at offset 524288
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256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Read before the rebase to make sure everything is set up correctly
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 65536
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 131072
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 196608
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 327680
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 393216
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 458752
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 524288
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 589824
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 655360
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 720896
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 786432
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 851968
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 917504
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 983040
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Rebase and test again
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 65536
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 131072
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 196608
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 327680
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 393216
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 458752
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 524288
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 589824
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 655360
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x33
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read 65536/65536 bytes at offset 720896
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 786432
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 851968
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x11
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read 65536/65536 bytes at offset 917504
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== IO: pattern 0x00
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read 65536/65536 bytes at offset 983040
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Test rebase in a subdirectory of the working directory ===
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=1048576
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=1048576
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Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=t.IMGFMT.base_old backing_fmt=IMGFMT
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wrote 131072/131072 bytes at offset 0
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 196608
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 131072/131072 bytes at offset 65536
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 196608
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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backing file: t.IMGFMT.base_new (actual path: TEST_DIR/subdir/t.IMGFMT.base_new)
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read 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 65536
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 131072
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 196608
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Offset Length File
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0 0x30000 TEST_DIR/subdir/t.IMGFMT
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0x30000 0x10000 TEST_DIR/subdir/t.IMGFMT.base_new
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=== Test rebase within one backing chain ===
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Creating backing chain
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=327680
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=262144 backing_file=TEST_DIR/subdir/t.IMGFMT.base_new backing_fmt=IMGFMT
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Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=327680 backing_file=TEST_DIR/subdir/t.IMGFMT.base_old backing_fmt=IMGFMT
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Fill backing files with data
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wrote 327680/327680 bytes at offset 0
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320 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 262144/262144 bytes at offset 0
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256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Check the last cluster is zeroed in overlay before the rebase
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read 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Rebase onto another image in the same chain
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Verify that data is read the same before and after rebase
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read 262144/262144 bytes at offset 0
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256 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Test rebase with different cluster sizes ===
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Creating backing chain
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_new', fmt=IMGFMT size=393216
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Formatting 'TEST_DIR/subdir/t.IMGFMT.base_old', fmt=IMGFMT size=393216 backing_file=TEST_DIR/subdir/t.IMGFMT.base_new backing_fmt=IMGFMT
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Formatting 'TEST_DIR/subdir/t.IMGFMT', fmt=IMGFMT size=393216 backing_file=TEST_DIR/subdir/t.IMGFMT.base_old backing_fmt=IMGFMT
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image: TEST_DIR/subdir/t.IMGFMT
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file format: IMGFMT
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virtual size: 384 KiB (393216 bytes)
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cluster_size: 131072
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backing file: TEST_DIR/subdir/t.IMGFMT.base_old
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backing file format: IMGFMT
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Fill backing files with data
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wrote 65536/65536 bytes at offset 65536
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Rebase onto another image in the same chain
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Verify that data is read the same before and after rebase
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read 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 65536
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 131072/131072 bytes at offset 131072
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128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 262144
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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read 65536/65536 bytes at offset 327680
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Verify that untouched cluster remains unallocated
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Offset Length File
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0 0x20000 TEST_DIR/subdir/t.IMGFMT
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0x40000 0x20000 TEST_DIR/subdir/t.IMGFMT
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*** done
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