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 shadow in rack #e, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 792 highest latencies:

System rackeslot6s.osadl.org (updated Sun Aug 30, 2026 12:44:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1588777	99	94	5,84	cyclictest	0	-21	swapper/0	08:45:02	0
1588777	99	93	3,17	cyclictest	1620533	-21	kworker/u8:1+ext4-rsv-conversion	10:45:01	0
1588778	99	75	19,18	cyclictest	23	1	ktimers/1	08:35:19	1
1588777	99	73	69,2	cyclictest	0	-21	swapper/0	07:10:01	0
1588778	99	61	46,10	cyclictest	1611313	-21	apt-key	09:20:01	1
1588778	99	61	46,10	cyclictest	1611313	-21	apt-key	09:20:00	1
1588782	99	53	2,20	cyclictest	0	-21	swapper/2	12:00:01	2
1588778	99	53	11,20	cyclictest	22	-21	rcuc/1	09:50:02	1
1588778	99	52	40,7	cyclictest	0	-21	swapper/1	07:10:01	1
1588782	99	51	43,5	cyclictest	1630778	-21	munin-plugin-st	11:14:59	2
1588777	99	51	27,21	cyclictest	206	50	irq/252-8000000.ethernet	08:35:22	0
1588782	99	50	31,14	cyclictest	0	-21	swapper/2	09:35:28	2
1588778	99	50	33,12	cyclictest	0	-21	swapper/1	10:59:59	1
1588782	99	49	40,5	cyclictest	1640910	-21	munin-plugin-st	12:15:00	2
1588778	99	49	4,17	cyclictest	24	-21	ksoftirqd/1	08:55:01	1
1588778	99	49	3,16	cyclictest	22	-21	rcuc/1	07:20:01	1
1588778	99	49	26,11	cyclictest	0	-21	swapper/1	10:55:01	1
1588778	99	49	26,11	cyclictest	0	-21	swapper/1	10:55:01	1
1588777	99	49	24,17	cyclictest	0	-21	swapper/0	08:05:01	0
1588782	99	48	38,6	cyclictest	1610220	-21	unixbench_multi	09:10:29	2
1588778	99	48	6,20	cyclictest	22	-21	rcuc/1	08:45:01	1
1588778	99	48	41,4	cyclictest	24	-21	ksoftirqd/1	07:30:20	1
1588778	99	48	28,12	cyclictest	0	-21	swapper/1	09:00:20	1
1588777	99	48	9,30	cyclictest	208	50	irq/208-8000000.ethernet	09:00:01	0
1588777	99	48	8,9	cyclictest	0	-21	swapper/0	11:50:01	0
1588777	99	48	8,9	cyclictest	0	-21	swapper/0	11:50:01	0
1588777	99	48	41,4	cyclictest	1641748	-21	apt	12:20:00	0
1588778	99	47	35,8	cyclictest	0	-21	swapper/1	11:55:29	1
1588778	99	47	32,9	cyclictest	0	-21	swapper/1	11:05:21	1
1588777	99	47	9,36	cyclictest	13	1	ktimers/0	10:55:18	0
1588777	99	47	30,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:00:17	0
1588782	99	46	29,10	cyclictest	0	-21	swapper/2	10:40:00	2
1588782	99	46	29,10	cyclictest	0	-21	swapper/2	10:40:00	2
1588777	99	46	36,7	cyclictest	13	1	ktimers/0	07:55:30	0
1588777	99	46	24,19	cyclictest	206	50	irq/252-8000000.ethernet	10:25:29	0
1588777	99	46	24,19	cyclictest	206	50	irq/252-8000000.ethernet	10:25:29	0
1588777	99	46	1,4	cyclictest	1610978	-21	find	09:15:28	0
1588777	99	46	1,4	cyclictest	1610978	-21	find	09:15:28	0
1588777	99	46	1,42	cyclictest	1619334	-21	irqstats	10:05:23	0
1588778	99	45	10,10	cyclictest	22	-21	rcuc/1	12:10:00	1
1588777	99	45	38,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:05:28	0
1588777	99	45	38,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:05:28	0
1588777	99	45	38,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	07:20:22	0
1588777	99	45	38,3	cyclictest	0	-21	swapper/0	08:10:11	0
1588777	99	45	37,4	cyclictest	1601801	-21	munin-plugin-st	08:24:59	0
1588777	99	45	34,7	cyclictest	1623830	-21	grep	10:30:29	0
1588777	99	45	1,36	cyclictest	1610466	-21	latency_hist	09:15:00	0
1588778	99	44	38,4	cyclictest	0	-21	swapper/1	11:40:01	1
1588777	99	44	29,13	cyclictest	15	-21	rcuc/0	11:35:13	0
1588777	99	44	28,13	cyclictest	15	-21	rcuc/0	12:35:12	0
1588777	99	44	1,41	cyclictest	0	-21	swapper/0	07:30:22	0
1588782	99	43	22,14	cyclictest	31	1	ktimers/2	08:20:11	2
1588777	99	43	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	12:10:14	0
1588777	99	43	36,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	11:05:27	0
1588777	99	43	1,4	cyclictest	0	-21	swapper/0	10:15:01	0
1588777	99	43	1,37	cyclictest	0	-21	swapper/0	10:05:02	0
1588782	99	42	34,4	cyclictest	1634147	-21	cron	11:35:00	2
1588782	99	42	30,8	cyclictest	0	-21	swapper/2	11:25:00	2
1588782	99	42	10,26	cyclictest	0	-21	swapper/2	07:50:26	2
1588778	99	42	28,9	cyclictest	0	-21	swapper/1	11:10:22	1
1588778	99	42	26,11	cyclictest	0	-21	swapper/1	07:50:01	1
1588778	99	42	25,8	cyclictest	0	-21	swapper/1	08:15:28	1
1588778	99	42	25,8	cyclictest	0	-21	swapper/1	08:15:27	1
1588777	99	42	33,4	cyclictest	1612787	-21	mailstats	09:25:27	0
1588777	99	42	31,7	cyclictest	0	-21	swapper/0	08:50:28	0
1588777	99	42	26,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:30:20	0
1588777	99	42	26,14	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:30:20	0
1588777	99	42	1,39	cyclictest	0	-21	swapper/0	09:35:18	0
1588777	99	42	1,35	cyclictest	0	-21	swapper/0	08:05:04	0
1588782	99	41	29,7	cyclictest	0	-21	swapper/2	11:40:01	2
1588778	99	41	5,3	cyclictest	0	-21	swapper/1	12:30:00	1
1588778	99	41	24,9	cyclictest	0	-21	swapper/1	11:20:01	1
1588778	99	41	20,12	cyclictest	0	-21	swapper/1	08:30:29	1
1588777	99	41	35,2	cyclictest	0	-21	swapper/0	10:50:27	0
1588777	99	41	35,2	cyclictest	0	-21	swapper/0	10:50:27	0
1588777	99	41	34,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:50:01	0
1588777	99	41	33,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	11:25:15	0
1588777	99	41	33,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	10:15:02	0
1588777	99	41	29,9	cyclictest	0	-21	swapper/0	11:30:30	0
1588777	99	41	28,10	cyclictest	0	-21	swapper/0	11:40:29	0
1588778	99	40	26,10	cyclictest	0	-21	swapper/1	09:40:30	1
1588778	99	40	24,10	cyclictest	0	-21	swapper/1	09:30:29	1
1588778	99	40	24,10	cyclictest	0	-21	swapper/1	09:30:29	1
1588778	99	40	22,8	cyclictest	0	-21	swapper/1	10:25:30	1
1588778	99	40	22,8	cyclictest	0	-21	swapper/1	10:25:29	1
1588778	99	40	1,2	cyclictest	0	-21	swapper/1	07:40:02	1
1588777	99	40	34,3	cyclictest	0	-21	swapper/0	12:05:19	0
1588777	99	40	2,2	cyclictest	0	-21	swapper/0	10:50:01	0
1588777	99	40	1,37	cyclictest	0	-21	swapper/0	07:35:26	0
1588782	99	39	31,4	cyclictest	1604419	-21	sendmail	08:40:00	2
1588782	99	39	19,11	cyclictest	1610524	-21	/usr/sbin/munin	09:15:18	2
1588782	99	39	19,11	cyclictest	1610524	-21	/usr/sbin/munin	09:15:18	2
1588782	99	39	1,32	cyclictest	1660	-21	snmpd	11:05:14	2
1588782	99	39	1,21	cyclictest	0	-21	swapper/2	08:35:01	2
1588778	99	39	33,4	cyclictest	23	1	ktimers/1	08:10:21	1
1588778	99	39	33,4	cyclictest	0	-21	swapper/1	12:15:00	1
1588778	99	39	30,6	cyclictest	1626556	-21	cron	10:50:00	1
1588778	99	39	29,7	cyclictest	0	-21	swapper/1	11:20:27	1
1588778	99	39	29,6	cyclictest	1620485	-21	grep	10:10:27	1
1588778	99	39	23,8	cyclictest	0	-21	swapper/1	10:05:27	1
1588778	99	39	21,10	cyclictest	0	-21	swapper/1	09:25:26	1
1588777	99	39	3,33	cyclictest	0	-21	swapper/0	11:50:21	0
1588777	99	39	32,4	cyclictest	1594945	-21	cron	07:45:00	0
1588777	99	39	32,4	cyclictest	0	-21	swapper/0	08:15:15	0
1588777	99	39	32,4	cyclictest	0	-21	swapper/0	08:15:15	0
1588777	99	39	28,6	cyclictest	0	-21	swapper/0	11:20:28	0
1588777	99	39	1,4	cyclictest	1617677	-21	meminfo	09:55:26	0
1588777	99	39	1,36	cyclictest	0	-21	swapper/0	09:50:17	0
1588782	99	38	7,25	cyclictest	0	-21	swapper/2	10:20:23	2
1588782	99	38	31,4	cyclictest	1633278	-21	unixbench_singl	11:25:29	2
1588782	99	38	26,8	cyclictest	0	-21	swapper/2	09:05:29	2
1588782	99	38	26,8	cyclictest	0	-21	swapper/2	09:05:29	2
1588782	99	38	12,16	cyclictest	0	-21	swapper/2	11:05:01	2
1588782	99	38	10,17	cyclictest	1589599	-21	munin-node	07:15:01	2
1588778	99	38	31,4	cyclictest	0	-21	swapper/1	11:40:29	1
1588778	99	38	30,5	cyclictest	1602550	-21	grep	08:25:30	1
1588778	99	38	27,6	cyclictest	23	1	ktimers/1	08:10:01	1
1588778	99	38	1,3	cyclictest	0	-21	swapper/1	08:55:01	1
1588777	99	38	34,2	cyclictest	0	-21	swapper/0	12:30:20	0
1588777	99	38	1,35	cyclictest	0	-21	swapper/0	10:35:15	0
1588777	99	38	1,35	cyclictest	0	-21	swapper/0	10:35:15	0
1588782	99	37	4,26	cyclictest	1600072	-21	kworker/u8:0+flush-179:96	09:00:12	2
1588782	99	37	4,26	cyclictest	0	-21	swapper/2	08:25:26	2
1588782	99	37	26,7	cyclictest	1631564	-21	grep	11:15:29	2
1588778	99	37	30,5	cyclictest	23	1	ktimers/1	10:35:18	1
1588778	99	37	30,5	cyclictest	23	1	ktimers/1	10:35:17	1
1588778	99	37	27,7	cyclictest	0	-21	swapper/1	07:25:00	1
1588778	99	37	27,6	cyclictest	1623821	-21	grep	10:30:30	1
1588778	99	37	27,6	cyclictest	1617982	-21	grep	09:55:30	1
1588778	99	37	27,6	cyclictest	1606027	-21	grep	08:45:27	1
1588778	99	37	26,5	cyclictest	22	-21	rcuc/1	07:10:21	1
1588778	99	37	2,4	cyclictest	0	-21	swapper/1	08:25:01	1
1588778	99	37	24,9	cyclictest	0	-21	swapper/1	11:25:21	1
1588778	99	37	22,9	cyclictest	1597474	-21	sendmail	08:00:00	1
1588778	99	37	21,8	cyclictest	0	-21	swapper/1	12:40:00	1
1588777	99	37	31,3	cyclictest	0	-21	swapper/0	08:25:22	0
1588777	99	37	30,4	cyclictest	1673	50	irq/118-8000000.ethernet-tx0	09:40:12	0
1588777	99	37	29,5	cyclictest	13	1	ktimers/0	08:45:22	0
1588777	99	37	28,7	cyclictest	0	-21	swapper/0	11:55:29	0
1588777	99	37	28,5	cyclictest	0	-21	swapper/0	07:20:00	0
1588777	99	37	1,4	cyclictest	0	-21	swapper/0	10:20:15	0
1588777	99	37	1,34	cyclictest	0	-21	swapper/0	09:20:18	0
1588777	99	37	1,34	cyclictest	0	-21	swapper/0	08:30:28	0
1588782	99	36	29,4	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	10:15:14	2
1588782	99	36	25,5	cyclictest	0	-21	swapper/2	11:40:28	2
1588782	99	36	25,5	cyclictest	0	-21	swapper/2	09:45:29	2
1588782	99	36	23,7	cyclictest	0	-21	swapper/2	12:05:29	2
1588782	99	36	2,29	cyclictest	0	-21	swapper/2	12:15:17	2
1588782	99	36	19,13	cyclictest	31	1	ktimers/2	07:20:12	2
1588782	99	36	1,28	cyclictest	1598502	-21	latency_hist	08:05:01	2
1588778	99	36	26,7	cyclictest	23	1	ktimers/1	12:15:12	1
1588778	99	36	26,6	cyclictest	23	1	ktimers/1	08:05:01	1
1588778	99	36	26,6	cyclictest	1616870	-21	phc2sys	09:50:26	1
1588778	99	36	25,7	cyclictest	1629008	-21	grep	11:00:29	1
1588778	99	36	23,5	cyclictest	0	-21	swapper/1	11:30:29	1
1588777	99	36	29,4	cyclictest	208	50	irq/208-8000000.ethernet	07:25:19	0
1588777	99	36	28,4	cyclictest	197	50	irq/27-20000000.i2c	07:50:16	0
1588777	99	36	21,11	cyclictest	1630658	-21	/usr/sbin/munin	11:10:29	0
1588777	99	36	1,7	cyclictest	0	-21	swapper/0	07:15:01	0
1588777	99	36	1,3	cyclictest	0	-21	swapper/0	12:23:23	0
1588777	99	36	1,33	cyclictest	0	-21	swapper/0	11:15:16	0
1588782	99	35	29,3	cyclictest	1675	50	irq/134-8000000.ethernet-tx2	09:50:13	2
1588782	99	35	25,5	cyclictest	1600000	-21	tail	08:10:29	2
1588782	99	35	24,7	cyclictest	0	-21	swapper/2	07:15:26	2
1588782	99	35	24,6	cyclictest	0	-21	swapper/2	08:50:28	2
1588782	99	35	23,7	cyclictest	0	-21	swapper/2	10:35:00	2
1588782	99	35	22,6	cyclictest	0	-21	swapper/2	10:45:00	2
1588778	99	35	23,5	cyclictest	23	1	ktimers/1	07:25:26	1
1588778	99	35	21,7	cyclictest	0	-21	swapper/1	10:15:28	1
1588778	99	35	19,9	cyclictest	0	-21	swapper/1	10:25:01	1
1588778	99	35	19,11	cyclictest	0	-21	swapper/1	12:05:01	1
1588778	99	35	1,28	cyclictest	22	-21	rcuc/1	11:50:15	1
1588778	99	35	1,28	cyclictest	0	-21	swapper/1	07:40:23	1
1588777	99	35	18,15	cyclictest	0	-21	swapper/0	07:45:29	0
1588782	99	34	7,25	cyclictest	0	-21	swapper/2	09:20:25	2
1588782	99	34	24,7	cyclictest	0	-21	swapper/2	07:35:28	2
1588782	99	34	24,5	cyclictest	0	-21	swapper/2	12:20:19	2
1588782	99	34	2,3	cyclictest	0	-21	swapper/2	09:30:25	2
1588782	99	34	2,3	cyclictest	0	-21	swapper/2	09:30:25	2
1588782	99	34	21,8	cyclictest	0	-21	swapper/2	10:55:27	2
1588782	99	34	20,9	cyclictest	0	-21	swapper/2	09:55:22	2
1588778	99	34	25,7	cyclictest	23	1	ktimers/1	09:20:16	1
1588778	99	34	1,4	cyclictest	0	-21	swapper/1	07:55:00	1
1588777	99	34	28,4	cyclictest	0	-21	swapper/0	12:27:56	0
1588777	99	34	24,7	cyclictest	0	-21	swapper/0	12:00:33	0
1588782	99	33	26,4	cyclictest	0	-21	swapper/2	07:30:26	2
1588778	99	33	23,6	cyclictest	23	1	ktimers/1	10:00:21	1
1588778	99	33	21,8	cyclictest	22	-21	rcuc/1	09:10:18	1
1588778	99	33	16,10	cyclictest	0	-21	swapper/1	10:45:00	1
1588777	99	33	23,7	cyclictest	13	1	ktimers/0	11:00:29	0
1588782	99	32	25,4	cyclictest	1605609	-21	fschecks_time	08:45:18	2
1588782	99	32	24,4	cyclictest	1612857	-21	unixbench_multi	09:25:28	2
1588782	99	32	23,4	cyclictest	0	-21	swapper/2	08:10:01	2
1588782	99	32	22,8	cyclictest	1607791	-21	munin-plugin-st	09:00:01	2
1588782	99	32	21,8	cyclictest	1638587	-21	/usr/sbin/munin	12:00:17	2
1588782	99	32	1,26	cyclictest	0	-21	swapper/2	10:00:23	2
1588778	99	32	23,5	cyclictest	23	1	ktimers/1	12:20:23	1
1588782	99	31	2,27	cyclictest	0	-21	swapper/2	12:35:24	2
1588782	99	31	22,6	cyclictest	0	-21	swapper/2	10:45:26	2
1588782	99	31	22,5	cyclictest	0	-21	swapper/2	10:50:21	2
1588782	99	31	22,5	cyclictest	0	-21	swapper/2	10:50:20	2
1588782	99	31	21,5	cyclictest	1615401	-21	tail	09:40:29	2
1588782	99	31	21,5	cyclictest	0	-21	swapper/2	07:40:18	2
1588782	99	31	20,7	cyclictest	30	-21	rcuc/2	08:40:28	2
1588778	99	31	19,9	cyclictest	23	1	ktimers/1	09:05:16	1
1588778	99	31	19,9	cyclictest	23	1	ktimers/1	09:05:16	1
1588782	99	30	23,4	cyclictest	0	-21	swapper/2	10:10:27	2
1588782	99	30	1,27	cyclictest	0	-21	swapper/2	10:28:14	2
1588782	99	30	1,27	cyclictest	0	-21	swapper/2	10:28:14	2
1588778	99	30	23,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	11:45:16	1
1588778	99	30	23,4	cyclictest	1674	50	irq/126-8000000.ethernet-tx1	11:45:16	1
1588778	99	30	22,6	cyclictest	23	1	ktimers/1	12:35:01	1
1588778	99	30	1,2	cyclictest	0	-21	swapper/1	09:40:00	1
1588782	99	29	24,3	cyclictest	0	-21	swapper/2	12:30:18	2
1588782	99	29	22,4	cyclictest	0	-21	swapper/2	08:15:25	2
1588782	99	29	22,4	cyclictest	0	-21	swapper/2	08:15:24	2
1588782	99	29	20,6	cyclictest	0	-21	swapper/2	12:30:02	2
1588782	99	29	16,7	cyclictest	0	-21	swapper/2	11:50:17	2
1588782	99	29	1,4	cyclictest	0	-21	swapper/2	08:00:01	2
1588782	99	28	3,9	cyclictest	1592533	-21	latency_hist	07:30:01	2
1588782	99	28	21,4	cyclictest	0	-21	swapper/2	07:45:28	2
1588782	99	28	17,7	cyclictest	0	-21	swapper/2	11:45:28	2
1588782	99	28	17,7	cyclictest	0	-21	swapper/2	11:45:28	2
1588782	99	26	16,7	cyclictest	0	-21	swapper/2	10:05:26	2
1588782	99	23	17,2	cyclictest	0	-21	swapper/2	07:10:01	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2020-10-04 - 12:21