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authorChristian Krinitsin <mail@krinitsin.com>2025-05-21 21:21:26 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-21 21:21:26 +0200
commit4b927bc37359dec23f67d3427fc982945f24f404 (patch)
tree245449ef9146942dc7fffd0235b48b7e70a00bf2 /gitlab/issues/target_missing/host_missing/accel_missing/1821.toml
parentaa8bd79cec7bf6790ddb01d156c2ef2201abbaab (diff)
downloademulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.tar.gz
emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.zip
add gitlab issues in toml format
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diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/1821.toml b/gitlab/issues/target_missing/host_missing/accel_missing/1821.toml
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+id = 1821
+title = "snapshot-save very slow in 8.1-rc2"
+state = "closed"
+created_at = "2023-08-09T09:28:04.143Z"
+closed_at = "2024-01-18T15:56:09.294Z"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1821"
+host-os = "Proxmox VE 8.0"
+host-arch = "x86"
+qemu-version = "QEMU emulator version 8.0.92 (v8.1.0-rc2-102-ga8fc5165aa)"
+guest-os = "n/a"
+guest-arch = "n/a"
+description = """Before commit 813cd61669 ("migration: Use migration_transferred_bytes() to calculate rate_limit") the above script will take about 1.5 seconds to execute, after the commit, 1 minute 30 seconds. More RAM makes it take longer still."""
+reproduce = """1. Execute the script given as the command line above."""
+additional = """Creating the issue here, so it doesn't get lost and is documented.
+
+The following series by @juan.quintela would've avoided the regression, but seems like it never landed: https://lists.nongnu.org/archive/html/qemu-devel/2023-05/msg07971.html
+
+Logs:
+
+Before commit 813cd61669 
+```
+root@pve8a1 /home/febner/repos/qemu/build # time ~/save-snap.sh
+Formatting '/tmp/test.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=1073741824 lazy_refcounts=off refcount_bits=16
+{"QMP": {"version": {"qemu": {"micro": 50, "minor": 0, "major": 8}, "package": "v8.0.0-967-g3db9c05a90-dirty"}, "capabilities": ["oob"]}}
+VNC server running on ::1:5900
+{"return": {}}
+{"timestamp": {"seconds": 1691572701, "microseconds": 708660}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "save0"}}
+{"timestamp": {"seconds": 1691572701, "microseconds": 708731}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "save0"}}
+{"return": {}}
+{"timestamp": {"seconds": 1691572701, "microseconds": 709239}, "event": "STOP"}
+{"timestamp": {"seconds": 1691572702, "microseconds": 939059}, "event": "RESUME"}
+{"timestamp": {"seconds": 1691572702, "microseconds": 939565}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "save0"}}
+{"timestamp": {"seconds": 1691572702, "microseconds": 939605}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "save0"}}
+{"timestamp": {"seconds": 1691572702, "microseconds": 939638}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "save0"}}
+{"return": {}}
+{"timestamp": {"seconds": 1691572702, "microseconds": 939730}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
+{"timestamp": {"seconds": 1691572702, "microseconds": 941746}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "save0"}}
+~/save-snap.sh  1.18s user 0.09s system 85% cpu 1.476 total
+```
+
+After commit 813cd61669
+```
+root@pve8a1 /home/febner/repos/qemu/build # time ~/save-snap.sh
+Formatting '/tmp/test.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=1073741824 lazy_refcounts=off refcount_bits=16
+{"QMP": {"version": {"qemu": {"micro": 92, "minor": 0, "major": 8}, "package": "v8.1.0-rc2-102-ga8fc5165aa"}, "capabilities": ["oob"]}}
+VNC server running on ::1:5900
+{"return": {}}
+{"timestamp": {"seconds": 1691572864, "microseconds": 944026}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "save0"}}
+{"timestamp": {"seconds": 1691572864, "microseconds": 944115}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "save0"}}
+{"return": {}}
+{"timestamp": {"seconds": 1691572864, "microseconds": 944631}, "event": "STOP"}
+{"timestamp": {"seconds": 1691572954, "microseconds": 697523}, "event": "RESUME"}
+{"timestamp": {"seconds": 1691572954, "microseconds": 697962}, "event": "JOB_STATUS_CHANGE", "data": {"status": "waiting", "id": "save0"}}
+{"timestamp": {"seconds": 1691572954, "microseconds": 697996}, "event": "JOB_STATUS_CHANGE", "data": {"status": "pending", "id": "save0"}}
+{"timestamp": {"seconds": 1691572954, "microseconds": 698020}, "event": "JOB_STATUS_CHANGE", "data": {"status": "concluded", "id": "save0"}}
+{"return": {}}
+{"timestamp": {"seconds": 1691572954, "microseconds": 698089}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
+{"timestamp": {"seconds": 1691572954, "microseconds": 701263}, "event": "JOB_STATUS_CHANGE", "data": {"status": "null", "id": "save0"}}
+~/save-snap.sh  31.81s user 41.69s system 81% cpu 1:30.03 total
+```"""