Posted	Nick	Remark
#openstack-nova - 2020-11-27
21:46:54	openstackgerrit	Merged openstack/nova stable/train: docs: Clarify configuration steps for PF devices https://review.opendev.org/c/openstack/nova/+/764329
#openstack-nova - 2020-11-28
01:38:59	openstackgerrit	Takashi Natsume proposed openstack/nova stable/victoria: Fix a hacking test https://review.opendev.org/c/openstack/nova/+/758112
01:39:48	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.binary_type/integer_types/string_types https://review.opendev.org/c/openstack/nova/+/728094
01:40:57	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.text_type (1/2) https://review.opendev.org/c/openstack/nova/+/728109
01:41:57	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.text_type (2/2) https://review.opendev.org/c/openstack/nova/+/728117
06:07:22	openstackgerrit	Merged openstack/nova master: nova-live-migration: Disable *all* virt services during negative tests https://review.opendev.org/c/openstack/nova/+/762623
06:07:48	openstackgerrit	Merged openstack/nova master: Support sys.argv in wsgi app https://review.opendev.org/c/openstack/nova/+/763750
07:36:44	openstackgerrit	Merged openstack/nova stable/train: Validate id as integer for os-aggregates https://review.opendev.org/c/openstack/nova/+/764455
09:36:15	openstackgerrit	Brin Zhang proposed openstack/nova master: Remove tenant from List Servers APIs https://review.opendev.org/c/openstack/nova/+/764292
11:55:27	openstackgerrit	Merged openstack/nova master: compute: Don't detach volumes when RescheduledException raised without retry https://review.opendev.org/c/openstack/nova/+/757894
12:22:47	openstackgerrit	Merged openstack/nova master: zuul: Add devstack-plugin-ceph-compute-local-ephemeral to experimental https://review.opendev.org/c/openstack/nova/+/743220
14:37:03	openstackgerrit	Ghanshyam Mann proposed openstack/nova master: Revert "zuul: Skip test_attach_scsi_disk_with_config_drive in nova-ceph-multistore" https://review.opendev.org/c/openstack/nova/+/764311
14:47:52	openstackgerrit	Merged openstack/nova master: Replace md5 with oslo version https://review.opendev.org/c/openstack/nova/+/756434
#openstack-nova - 2020-11-29
01:50:09	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.binary_type/integer_types/string_types https://review.opendev.org/c/openstack/nova/+/728094
01:59:45	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.text_type (1/2) https://review.opendev.org/c/openstack/nova/+/728109
02:09:44	openstackgerrit	Takashi Natsume proposed openstack/nova master: Remove six.text_type (2/2) https://review.opendev.org/c/openstack/nova/+/728117
05:39:17	openstackgerrit	Ghanshyam Mann proposed openstack/nova master: Reuse code from oslo lib for JSON policy migration https://review.opendev.org/c/openstack/nova/+/763487
05:41:03	openstackgerrit	Ghanshyam Mann proposed openstack/nova master: Reuse code from oslo lib for JSON policy migration https://review.opendev.org/c/openstack/nova/+/763487
10:29:02	openstackgerrit	Adit Sarfaty proposed openstack/nova master: Retry on vmware create_vm when it fails https://review.opendev.org/c/openstack/nova/+/764586
11:08:09	openstackgerrit	Adit Sarfaty proposed openstack/nova master: Retry on vmware create_vm when it fails https://review.opendev.org/c/openstack/nova/+/764586
18:56:54	openstackgerrit	Lee Yarwood proposed openstack/nova stable/victoria: zuul: Replace nova-live-migration with zuulv3 jobs https://review.opendev.org/c/openstack/nova/+/764432
#openstack-nova - 2020-11-30
02:32:32	openstackgerrit	DatLQ proposed openstack/nova stable/victoria: Fix unplugging VIF when migrate/resize VM https://review.opendev.org/c/openstack/nova/+/764504
03:35:22	openstackgerrit	Xinran WANG proposed openstack/nova-specs master: SRIOV Enabled Nic Support Specification https://review.opendev.org/c/openstack/nova-specs/+/742785
03:53:29	openstackgerrit	Brin Zhang proposed openstack/nova master: Remove tenant from List Servers APIs https://review.opendev.org/c/openstack/nova/+/764292
05:49:27	openstackgerrit	Brin Zhang proposed openstack/nova master: Remove tenant from List Servers APIs https://review.opendev.org/c/openstack/nova/+/764292
08:08:11	gibi	good morning
08:29:33	openstackgerrit	Wenping Song proposed openstack/nova master: Nova supports password encrypted VNC https://review.opendev.org/c/openstack/nova/+/622336
08:39:41	openstackgerrit	Brin Zhang proposed openstack/nova master: Remove tenant from List Servers APIs https://review.opendev.org/c/openstack/nova/+/764292
08:40:12	lyarwood	gmann++ awesome thanks!
08:45:04	openstackgerrit	Lee Yarwood proposed openstack/nova stable/victoria: zuul: Replace nova-live-migration with zuulv3 jobs https://review.opendev.org/c/openstack/nova/+/764432
08:45:27	lyarwood	elod / bauzas ; ^ okay this should finally get stable/victoria passing again now
08:46:06	lyarwood	gibi: https://review.opendev.org/c/openstack/nova/+/764246 - could you take a look at this today if you get time please?
08:47:18	gibi	lyarwood: on it
08:48:03	lyarwood	thanks :)
08:48:30	openstackgerrit	Lee Yarwood proposed openstack/nova stable/victoria: Add regression test for bug #1899649 https://review.opendev.org/c/openstack/nova/+/764611
08:48:30	openstackgerrit	Lee Yarwood proposed openstack/nova stable/victoria: compute: Don't detach volumes when RescheduledException raised without retry https://review.opendev.org/c/openstack/nova/+/764612
08:48:31	openstack	bug 1899649 in OpenStack Compute (nova) "Volume marked as available after a failure to build" [Undecided,In progress] https://launchpad.net/bugs/1899649 - Assigned to Lee Yarwood (lyarwood)
08:54:27	gibi	lyarwood: you missed the [compute] -> [DEFAULT] update in the commit message. Also stephenfin asked for a reno
08:55:32	openstackgerrit	chengsheng proposed openstack/nova master: Modify the default value of the force parameter in live migration https://review.opendev.org/c/openstack/nova/+/762458
08:58:47	lyarwood	gibi: ack I'll sort that out now
09:11:29	openstackgerrit	Lee Yarwood proposed openstack/nova master: libvirt: Skip encryption metadata lookups if secret already exists on host https://review.opendev.org/c/openstack/nova/+/764246
09:15:03	gibi	lyarwood: +@
09:15:04	gibi	lyarwood: +2
09:17:48	viks____	Hi, I'm trying to gauge disk I/O performance.
09:17:48	viks____	I have a compute node with nvme. With sysbench I/O tests for disk i get:
09:17:55	viks____	https://www.irccloud.com/pastebin/6y4td58R/
09:18:13	viks____	However, in vm which is created in the same host, i get
09:18:19	viks____	https://www.irccloud.com/pastebin/6LLVRG5F/
09:18:43	viks____	Why read speed in the vm is very less and why the write speed is high on vm compared to host? I use below commands to test read and write using sysbench:
09:18:50	viks____	https://www.irccloud.com/pastebin/bzcImC3H/
09:19:00	viks____	Can someone tell me why i see the above behaviour. Also How do i get better performance for disk I/o?
09:32:12	elod	lyarwood: thanks for working on the live-migration job issue! ... and sorry, I have some questions in the live-migration patch. o:)
09:33:41	lyarwood	elod: np I'll look now
09:33:55	lyarwood	viks____: can you provide any more context, which virt driver are you using, storage backend etc
09:35:14	viks____	KVM/libvert
09:35:55	viks____	also i use qemu images
09:36:04	viks____	sorry qcow2*
09:44:16	kashyap	viks____: When benchmarking I/O patterns, this is a good post to refer to: http://blog.vmsplice.net/2017/11/common-disk-benchmarking-mistakes.html
09:46:05	openstackgerrit	Lee Yarwood proposed openstack/nova stable/victoria: zuul: Replace nova-live-migration with zuulv3 jobs https://review.opendev.org/c/openstack/nova/+/764432
09:46:06	lyarwood	elod: ^ updated, hopefully that's cleaner and easier to understand now.
09:47:10	elod	lyarwood: looking
09:58:11	elod	lyarwood: one more quetsion: so now nova-evacuate is merged into the live-migration job by calling 'run-evacuate-hook' role. so the 'nova-evacuate' playbook is not needed anymore. Did you leave that playbook (playbook/nova-evacuate/run.yaml) there in case someone wants to run it explicitly?
09:59:45	lyarwood	elod: nope that's a mistake, I'll remove it from master now
10:00:23	elod	lyarwood: oh, thanks!
10:01:56	openstackgerrit	Lee Yarwood proposed openstack/nova master: nova-evacuate: Remove leftover playbook from standalone job https://review.opendev.org/c/openstack/nova/+/764618
10:08:12	viks____	kashyap: Thanks.. in that post, fio is used. I'm using sysbench. also i'm trying to compare the results b/n host and vm using the same set of commands.. i think that should be fine.. or ??
10:10:29	kashyap	viks____: Same set as in with "sysbench"?
10:14:18	viks____	kashyap: i meant i am running the above commands in vm as well as the host running the vm and then comparing the results
10:14:43	kashyap	viks____: As another case: also run on the host _without_ running the VM
10:14:55	kashyap	viks____: Then you can compare and contrast further
10:16:45	openstackgerrit	Balazs Gibizer proposed openstack/nova master: Move query param generation to RequestGroup o.vo https://review.opendev.org/c/openstack/nova/+/756894
10:21:17	viks____	kashyap: .. The above is the result of that only.. first on the host without any vm.. then after creating the vm, running test within the vm.. and i was expecting some kind of similar results b/n them.. if u see above, read speed on host is too high compared to that in vm... and write speed is more in vm than that of host itself..
10:21:36	openstackgerrit	Balazs Gibizer proposed openstack/nova master: Refactor _claim_pci_device_for_interface_attach to prepare for qos https://review.opendev.org/c/openstack/nova/+/756895
10:23:25	openstackgerrit	Merged openstack/nova master: Revert "zuul: Skip test_attach_scsi_disk_with_config_drive in nova-ceph-multistore" https://review.opendev.org/c/openstack/nova/+/764311
10:23:47	kashyap	viks____: Hmm, I don't have bright ideas; can you come over to #qemu on OFTC network? There are more Block Layer devs who have better ideas on these kind of perf issues
10:27:28	kashyap	viks____: If you can't; I can ask for you in a bit. (I"m in the middle of something)
10:28:36	viks____	kashyap: is that related to both kvm and qemu? or just qemu? Because i'm using KVM...
10:29:07	openstackgerrit	Adit Sarfaty proposed openstack/nova stable/train: Retry on vmware create_vm when it fails https://review.opendev.org/c/openstack/nova/+/764515
10:30:08	kashyap	viks____: It's for QEMU. But even if you're using KVM, QEMU is doing most of the heavy-lifting. All the I/O stuff is handled by QEMU's block layer.
10:30:38	kashyap	viks____: QEMU is implicit in "KVM/libvirt"
10:30:52	openstackgerrit	Lee Yarwood proposed openstack/nova stable/ussuri: Add regression test for bug #1899649 https://review.opendev.org/c/openstack/nova/+/764625
10:30:52	openstackgerrit	Lee Yarwood proposed openstack/nova stable/ussuri: compute: Don't detach volumes when RescheduledException raised without retry https://review.opendev.org/c/openstack/nova/+/764626
10:30:53	openstack	bug 1899649 in OpenStack Compute (nova) "Volume marked as available after a failure to build" [Undecided,In progress] https://launchpad.net/bugs/1899649 - Assigned to Lee Yarwood (lyarwood)
10:40:55	kashyap	viks____: I have just asked your question to a QEMU dev on your "write perf better in guest than on host" question; I'll let you know if there's a response
10:41:30	kashyap	(I asked the author of the earlier-mentioned benchmarking blog post.)
10:44:36	viks____	Ok.. thanks
10:48:59	kashyap	viks____: So, here we go:
10:50:53	kashyap	viks____: It's likely that the [host] page cache is being used, so host vs guest numbers could be wildly different to due different amounts of RAM.
10:51:09	kashyap	viks____: So the first step is to check whether the benchmark is going through the page cache. If it does, then it's possible that the amount of physical disk I/O being done is quite different between guest and host, and therefore performance is also very different.
10:52:23	kashyap	viks____: It's point-2 in the blog post abov ("Bypass the page cache"). You might want to re-test with 'fio' to compare and contrast.
10:54:52	openstackgerrit	Stephen Finucane proposed openstack/nova master: db: Remove KeyPair model from main DB https://review.opendev.org/c/openstack/nova/+/763989
10:57:13	stephenfin	lyarwood: Could you hit https://review.opendev.org/c/openstack/nova/+/749315/ https://review.opendev.org/c/openstack/nova/+/749312/ and https://review.opendev.org/c/openstack/nova/+/759114/ (remove XenAPI final bits)?
11:03:30	viks____	kashyap: ok.. thanks a lot.. will check with fio once
11:04:55	lyarwood	stephenfin: ack sure
11:29:46	lyarwood	stephenfin: https://review.opendev.org/c/openstack/nova/+/759114/ - As it isn't passing CI anyway can you remove `Remove` from the commit subject ;)
11:30:10	stephenfin	um, yeah, fair /o\
11:31:55	openstackgerrit	Stephen Finucane proposed openstack/nova master: objects: Neuter 'BandwidthUsage', 'BandwidthUsageList' https://review.opendev.org/c/openstack/nova/+/759114
11:31:59	stephenfin	lyarwood: ^
11:32:43	lyarwood	ta
11:34:45	openstackgerrit	Stephen Finucane proposed openstack/nova master: db: Drop models for removed services, features https://review.opendev.org/c/openstack/nova/+/698706

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