OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of system in rack #5, slot #3

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 rack5slot3.osadl.org (updated Tue May 20, 2025 00:50:22)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
12134	2	83	53,26	sleep4	0	-21	swapper/4	19:07:22	4
12198	2	80	64,11	sleep3	0	-21	swapper/3	19:08:16	3
12128	2	78	43,30	sleep0	0	-21	swapper/0	19:07:18	0
12069	2	78	44,30	sleep6	0	-21	swapper/6	19:06:26	6
12008	2	77	43,29	sleep1	0	-21	swapper/1	19:05:33	1
26814	2	76	0,0	sleep6	0	-21	swapper/6	22:45:24	6
12106	2	76	42,29	sleep5	0	-21	swapper/5	19:06:58	5
12047	2	74	38,30	sleep2	0	-21	swapper/2	19:06:06	2
12052	2	73	39,30	sleep7	0	-21	swapper/7	19:06:11	7
2061	2	63	0,0	sleep1	0	-21	swapper/1	21:46:59	1
639	2	46	0,0	sleep5	0	-21	swapper/5	20:35:12	5
14937	2	46	0,0	sleep1	0	-21	swapper/1	23:43:08	1
2184	2	45	0,1	sleep5	12754	99	cyclictest	23:05:16	5
12322	2	45	42,1	sleep3	0	-21	swapper/3	19:10:00	3
23541	2	43	0,0	sleep7	0	-21	swapper/7	23:00:15	7
12751	99	33	33,0	cyclictest	0	-21	swapper/2	23:32:39	2
12755	99	29	10,18	cyclictest	0	-21	swapper/6	22:38:45	6
12755	99	26	10,14	cyclictest	12	1	rcu_preempt	23:44:32	6
12749	99	24	24,0	cyclictest	0	-21	swapper/0	22:02:19	0
12755	99	23	11,9	cyclictest	12	1	rcu_preempt	00:16:57	6
12751	99	23	10,4	cyclictest	0	-21	swapper/2	19:10:10	2
12755	99	22	10,9	cyclictest	12	1	rcu_preempt	22:29:02	6
12756	99	21	17,4	cyclictest	1642	-21	ntpd	23:49:50	7
12756	99	21	17,4	cyclictest	1642	-21	ntpd	23:49:50	7
12755	99	21	11,8	cyclictest	12	1	rcu_preempt	00:20:12	6
12755	99	21	11,6	cyclictest	12	1	rcu_preempt	22:42:52	6
12755	99	21	11,6	cyclictest	12	1	rcu_preempt	21:45:15	6
12755	99	21	10,9	cyclictest	12	1	rcu_preempt	23:59:16	6
12755	99	21	10,9	cyclictest	12	1	rcu_preempt	23:53:33	6
12755	99	21	10,9	cyclictest	0	-21	swapper/6	00:36:56	6
12755	99	21	10,8	cyclictest	12	1	rcu_preempt	21:22:32	6
12755	99	21	10,6	cyclictest	12	1	rcu_preempt	22:06:34	6
12753	99	21	20,1	cyclictest	694	50	irq/124-eth0	22:05:20	4
12755	99	20	13,5	cyclictest	12	1	rcu_preempt	21:34:35	6
12755	99	20	12,3	cyclictest	12	1	rcu_preempt	00:27:17	6
12755	99	20	10,8	cyclictest	12	1	rcu_preempt	23:33:34	6
12755	99	20	10,8	cyclictest	12	1	rcu_preempt	22:22:15	6
12755	99	20	10,8	cyclictest	12	1	rcu_preempt	19:15:11	6
12755	99	20	10,8	cyclictest	12	1	rcu_preempt	19:15:01	6
12755	99	20	10,7	cyclictest	12	1	rcu_preempt	23:50:00	6
12755	99	20	10,7	cyclictest	12	1	rcu_preempt	23:50:00	6
12755	99	20	10,7	cyclictest	12	1	rcu_preempt	20:30:12	6
12755	99	19	13,5	cyclictest	12	1	rcu_preempt	21:58:24	6
12755	99	19	11,6	cyclictest	12	1	rcu_preempt	21:35:32	6
12755	99	19	11,5	cyclictest	12	1	rcu_preempt	19:25:25	6
12755	99	19	11,3	cyclictest	12	1	rcu_preempt	00:09:28	6
12755	99	19	10,9	cyclictest	0	-21	swapper/6	21:25:44	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	23:25:01	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	23:10:19	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	22:55:19	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	22:50:12	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	22:00:17	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	21:00:15	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	20:00:13	6
12755	99	19	10,7	cyclictest	12	1	rcu_preempt	00:10:43	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	23:35:49	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	23:25:13	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	23:19:45	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	23:06:47	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	22:15:12	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	22:10:26	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	21:05:16	6
12755	99	19	10,6	cyclictest	12	1	rcu_preempt	20:20:12	6
12753	99	19	18,1	cyclictest	694	50	irq/124-eth0	23:47:56	4
12753	99	19	18,1	cyclictest	694	50	irq/124-eth0	23:47:56	4
12749	99	19	19,0	cyclictest	24640	-21	ssh	00:03:51	0
18981	2	18	10,0	sleep2	0	-21	swapper/2	23:13:55	2
12756	99	18	16,1	cyclictest	662	-21	ptp4l	00:13:15	7
12756	99	18	13,1	cyclictest	1642	-21	ntpd	00:34:41	7
12756	99	18	10,8	cyclictest	0	-21	swapper/7	00:39:57	7
12755	99	18	11,5	cyclictest	12	1	rcu_preempt	21:50:01	6
12755	99	18	11,5	cyclictest	12	1	rcu_preempt	20:45:12	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	23:00:38	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	22:30:22	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	21:40:04	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	21:15:16	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	21:10:26	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:55:16	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:50:14	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:40:12	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:35:22	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:25:15	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	20:10:13	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	19:55:16	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	19:50:22	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	19:40:14	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	19:40:00	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	19:30:16	6
12755	99	18	10,6	cyclictest	12	1	rcu_preempt	00:30:59	6
12755	99	18	10,5	cyclictest	12	1	rcu_preempt	20:19:36	6
12755	99	18	10,3	cyclictest	12	1	rcu_preempt	00:00:05	6
12754	99	18	14,1	cyclictest	16136	-21	nscd	00:10:38	5
12749	99	18	17,1	cyclictest	1706	-21	sendmail-mta	19:15:17	0
9325	2	17	10,0	sleep3	0	-21	swapper/3	22:37:29	3
23205	2	17	9,0	sleep1	0	-21	swapper/1	22:13:02	1
12755	99	17	10,5	cyclictest	12	1	rcu_preempt	20:05:12	6
12755	99	17	10,5	cyclictest	12	1	rcu_preempt	19:45:17	6
12755	99	17	10,5	cyclictest	12	1	rcu_preempt	19:20:13	6
12754	99	17	17,0	cyclictest	0	-21	swapper/5	23:33:33	5
12754	99	17	12,2	cyclictest	14757	-21	nscd	23:12:09	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17