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{"return": {}} 31{"error": {"class": "GenericError", "desc": "NBD server not running"}} 32{"return": {}} 33{"error": {"class": "GenericError", "desc": "NBD server already running"}} 34exports available: 0 35{"return": {}} 36{"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}} 37{"error": {"class": "GenericError", "desc": "NBD server already has export named 'n'"}} 38{"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}} 39{"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}} 40{"return": {}} 41exports available: 2 42 export: 'n' 43 size: 4194304 44 flags: 0x58f ( readonly flush fua df multi cache ) 45 min block: 1 46 opt block: 4096 47 max block: 33554432 48 available meta contexts: 2 49 base:allocation 50 qemu:dirty-bitmap:b 51 export: 'n2' 52 size: 4194304 53 flags: 0xced ( flush fua trim zeroes df cache fast-zero ) 54 min block: 1 55 opt block: 4096 56 max block: 33554432 57 available meta contexts: 2 58 base:allocation 59 qemu:dirty-bitmap:b2 60 61=== Contrast normal status to large granularity dirty-bitmap === 62 63read 512/512 bytes at offset 512 64512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 65read 524288/524288 bytes at offset 524288 66512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 67read 1048576/1048576 bytes at offset 1048576 681 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 69read 2097152/2097152 bytes at offset 2097152 702 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 71[{ "start": 0, "length": 4096, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 72{ "start": 4096, "length": 1044480, "depth": 0, "zero": true, "data": false, "offset": OFFSET}, 73{ "start": 1048576, "length": 3145728, "depth": 0, "zero": false, "data": true, "offset": OFFSET}] 74[{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, 75{ "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 76{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 77 78=== Contrast to small granularity dirty-bitmap === 79 80[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 81{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, 82{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 83{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 84 85=== End qemu NBD server === 86 87{"return": {}} 88{"return": {}} 89{"error": {"class": "GenericError", "desc": "Export 'n2' is not found"}} 90{"return": {}} 91{"error": {"class": "GenericError", "desc": "NBD server not running"}} 92{"return": {}} 93{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}} 94 95=== Use qemu-nbd as server === 96 97[{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, 98{ "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 99{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 100[{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 101{ "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, 102{ "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true, "offset": OFFSET}, 103{ "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] 104*** done 105