1QA output created by 223 2 3=== Create partially sparse image, then add dirty bitmaps === 4 5Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4194304 6wrote 2097152/2097152 bytes at offset 1048576 72 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 8Testing: 9QMP_VERSION 10{"return": {}} 11{"return": {}} 12{"return": {}} 13{"return": {}} 14{"return": {}} 15{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}} 16 17 18=== Write part of the file under active bitmap === 19 20wrote 512/512 bytes at offset 512 21512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 22wrote 2097152/2097152 bytes at offset 2097152 232 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 24 25=== End dirty bitmaps, and start serving image over NBD === 26 27{"return": {}} 28{"return": {}} 29{"return": {}} 30{"error": {"class": "GenericError", "desc": "NBD server not running"}} 31{"return": {}} 32{"error": {"class": "GenericError", "desc": "NBD server already running"}} 33exports available: 0 34{"return": {}} 35{"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}} 36{"error": {"class": "GenericError", "desc": "NBD server already has export named 'n'"}} 37{"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}} 38{"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}} 39{"return": {}} 40exports available: 2 41 export: 'n' 42 size: 4194304 43 flags: 0x4ef ( readonly flush fua trim zeroes df cache ) 44 min block: 1 45 opt block: 4096 46 max block: 33554432 47 available meta contexts: 2 48 base:allocation 49 qemu:dirty-bitmap:b 50 export: 'n2' 51 size: 4194304 52 flags: 0x4ed ( flush fua trim zeroes df cache ) 53 min block: 1 54 opt block: 4096 55 max block: 33554432 56 available meta contexts: 2 57 base:allocation 58 qemu:dirty-bitmap:b2 59 60=== Contrast normal status to large granularity dirty-bitmap === 61 62read 512/512 bytes at offset 512 63512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 64read 524288/524288 bytes at offset 524288 65512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 66read 1048576/1048576 bytes at offset 1048576 671 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 68read 2097152/2097152 bytes at offset 2097152 692 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 70[{ "start": 0, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 71{ "start": 4096, "length": 1044480, "depth": 0, "zero": true, "data": false, "offset": OFFSET}, 72{ "start": 1048576, "length": 3145728, "depth": 0, "zero": false, "data": true, "offset": OFFSET}] 73[{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, 74{ "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 75{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 76 77=== Contrast to small granularity dirty-bitmap === 78 79[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 80{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, 81{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 82{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 83 84=== End qemu NBD server === 85 86{"return": {}} 87{"return": {}} 88{"error": {"class": "GenericError", "desc": "Export 'n2' is not found"}} 89{"return": {}} 90{"error": {"class": "GenericError", "desc": "NBD server not running"}} 91{"return": {}} 92{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}} 93 94=== Use qemu-nbd as server === 95 96[{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, 97{ "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 98{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 99[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 100{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, 101{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 102{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 103*** done 104