OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #8

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack0slot8.osadl.org (updated Fri Jul 26, 2024 12:45:26)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
288885	99	157	16,140	cyclictest	0	-21	swapper/15	09:30:02	7
288869	99	120	0,119	cyclictest	0	-21	swapper/0	09:30:02	0
288878	99	116	0,1	cyclictest	0	-21	swapper/8	09:30:03	14
288874	99	116	0,1	cyclictest	0	-21	swapper/4	09:30:02	10
288883	99	115	0,0	cyclictest	0	-21	swapper/13	09:30:03	5
288870	99	114	0,0	cyclictest	0	-21	swapper/1	09:30:02	1
288881	99	103	101,2	cyclictest	3547244	-21	chrome	11:00:19	3
288877	99	98	17,0	cyclictest	0	-21	swapper/7	08:30:23	13
288877	99	98	17,0	cyclictest	0	-21	swapper/7	08:30:23	13
288881	99	95	14,1	cyclictest	364367	-21	ntpq	08:30:23	3
288881	99	95	14,1	cyclictest	364367	-21	ntpq	08:30:23	3
288885	99	92	12,0	cyclictest	0	-21	swapper/15	08:30:22	7
288885	99	92	12,0	cyclictest	0	-21	swapper/15	08:30:22	7
288869	99	87	84,3	cyclictest	26	1	irq_work/0	09:01:58	0
288878	99	85	84,1	cyclictest	104	1	rcuc/8	09:01:59	14
288873	99	84	17,1	cyclictest	400229	-21	kworker/3:1+i915-unordered@ __intel_wakeref_put_work	06:08:33	9
288879	99	83	0,1	cyclictest	0	-21	swapper/9	09:30:02	15
288877	99	83	81,2	cyclictest	5024	-21	Xorg	09:30:02	13
288881	99	81	78,2	cyclictest	2537944	-21	gnome-shell	09:30:02	3
288884	99	72	60,4	cyclictest	0	-21	swapper/14	09:43:23	6
288884	99	66	65,0	cyclictest	0	-21	swapper/14	09:01:59	6
288872	99	66	64,1	cyclictest	43	1	rcuc/2	11:27:58	8
288875	99	64	44,16	cyclictest	1078223	-21	Compositor	09:29:12	11
288874	99	63	61,1	cyclictest	5024	-21	Xorg	09:01:58	10
288870	99	63	39,11	cyclictest	11384	-21	thunderbird	12:38:03	1
288885	99	61	59,1	cyclictest	0	-21	swapper/15	11:50:35	7
288879	99	61	9,39	cyclictest	11384	-21	thunderbird	09:36:26	15
288877	99	61	56,3	cyclictest	392454	-21	neo4j.VmPauseMo	09:29:48	13
288869	99	57	3,49	cyclictest	2538065	-21	WRScene~der#195	09:29:52	0
288883	99	52	45,2	cyclictest	0	-21	swapper/13	09:37:54	5
288878	99	51	27,12	cyclictest	11384	-21	thunderbird	10:25:29	14
288878	99	49	3,40	cyclictest	11384	-21	thunderbird	09:29:39	14
288882	99	48	2,10	cyclictest	2538070	-21	WRScene~lder#33	09:32:53	4
288880	99	48	0,20	cyclictest	0	-21	swapper/10	09:37:19	2
288874	99	48	36,11	cyclictest	0	-21	swapper/4	09:35:23	10
288884	99	47	43,1	cyclictest	0	-21	swapper/14	09:30:03	6
288869	99	47	2,35	cyclictest	0	-21	swapper/0	09:35:23	0
288881	99	46	43,3	cyclictest	5024	-21	Xorg	09:36:45	3
288869	99	46	0,1	cyclictest	0	-21	swapper/0	09:23:32	0
288876	99	45	20,3	cyclictest	1078160	-21	IPDL	23:32:36	12
288883	99	44	40,2	cyclictest	5024	-21	Xorg	12:21:51	5
288880	99	43	0,42	cyclictest	0	-21	swapper/10	09:33:37	2
288875	99	43	10,18	cyclictest	0	-21	swapper/5	09:43:13	11
288884	99	42	42,0	cyclictest	0	-21	swapper/14	09:23:54	6
288884	99	42	35,3	cyclictest	0	-21	swapper/14	09:36:26	6
288874	99	42	40,1	cyclictest	11384	-21	thunderbird	09:23:54	10
288873	99	42	37,5	cyclictest	0	-21	swapper/3	09:35:23	9
288870	99	42	37,2	cyclictest	2537944	-21	gnome-shell	09:27:40	1
288884	99	41	27,3	cyclictest	0	-21	swapper/14	09:29:16	6
288872	99	41	2,15	cyclictest	2538065	-21	WRScene~der#195	09:29:48	8
288872	99	41	15,4	cyclictest	1078160	-21	IPDL	23:32:36	8
288870	99	41	39,1	cyclictest	0	-21	swapper/1	09:23:54	1
288869	99	41	37,3	cyclictest	0	-21	swapper/0	11:27:59	0
288882	99	40	7,30	cyclictest	11384	-21	thunderbird	09:28:22	4
288874	99	40	39,0	cyclictest	0	-21	swapper/4	09:29:40	10
288874	99	40	21,12	cyclictest	3547244	-21	chrome	09:43:24	10
288869	99	40	27,7	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	10:26:47	0
288883	99	39	38,0	cyclictest	0	-21	swapper/13	09:25:50	5
288876	99	39	15,4	cyclictest	2538065	-21	WRScene~der#195	09:29:16	12
288876	99	39	11,7	cyclictest	419392	-21	TaskCon~ller		12
288875	99	39	4,11	cyclictest	0	-21	swapper/5	10:15:18	11
288875	99	39	14,25	cyclictest	72	1	irq_work/5	09:21:38	11
288874	99	39	15,13	cyclictest	65	-21	ksoftirqd/4	09:53:19	10
288870	99	39	10,20	cyclictest	0	-21	swapper/1	09:35:17	1
288869	99	39	26,2	cyclictest	549211	-21	kworker/0:0+events@ igb_watchdog_task	14:59:22	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	22:42:51	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	22:33:28	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	21:16:47	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	12:59:55	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	12:55:45	0
288869	99	39	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	12:10:47	0
288869	99	39	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	05:16:26	0
288885	99	38	12,25	cyclictest	0	-21	swapper/15	09:21:18	7
288879	99	38	26,5	cyclictest	0	-21	swapper/9	09:43:13	15
288877	99	38	14,4	cyclictest	5024	-21	Xorg	09:37:04	13
288873	99	38	12,14	cyclictest	1078157	-21	Timer	09:29:34	9
288869	99	38	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	21:50:43	0
288869	99	38	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	21:33:33	0
288869	99	38	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	15:41:17	0
288869	99	38	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	14:22:11	0
288869	99	38	11,6	cyclictest	5024	-21	Xorg	09:43:15	0
288878	99	37	1,4	cyclictest	2538070	-21	WRScene~lder#33	09:36:15	14
288869	99	37	25,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	08:51:13	0
288878	99	36	12,24	cyclictest	102	1	irq_work/8	09:21:56	14
288875	99	36	0,11	cyclictest	0	-21	swapper/5	12:16:06	11
288873	99	36	20,2	cyclictest	18	1	rcu_preempt	09:23:47	9
288873	99	36	10,18	cyclictest	1078337	-21	WebExtensions	09:43:24	9
288869	99	36	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	06:46:22	0
288882	99	35	10,22	cyclictest	0	-21	swapper/12	10:35:01	4
288870	99	35	33,2	cyclictest	33	1	rcuc/1	12:25:22	1
288870	99	35	10,24	cyclictest	11384	-21	thunderbird	12:00:00	1
288869	99	35	27,2	cyclictest	549211	-21	kworker/0:0+events@ igb_watchdog_task	22:48:44	0
288869	99	35	27,2	cyclictest	549211	-21	kworker/0:0+events@ igb_watchdog_task	18:21:25	0
288869	99	35	27,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	20:45:57	0
288869	99	35	27,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	15:27:17	0
288869	99	35	27,1	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	17:16:06	0
288869	99	35	26,2	cyclictest	2778618	-21	kworker/0:3+events@ igb_watchdog_task	11:44:35	0
288869	99	35	2,5	cyclictest	411151	-21	Isolated	23:32:36	0
288885	99	34	32,1	cyclictest	0	-21	swapper/15	12:10:24	7
288884	99	34	33,0	cyclictest	0	-21	swapper/14	09:10:31	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17