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 #5, slot #4

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, lowest P state: ondemand
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack5slot4s.osadl.org (updated Thu Apr 23, 2026 12:44:15)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2595597	2	119	0,1	sleep0	2595603	-21	tr	11:21:15	0
2345656	2	91	0,1	sleep0	2345661	-21	tr	07:11:16	0
2361675	2	80	0,5	chrt	0	-21	swapper/3	07:26:15	3
2342536	99	62	55,5	cyclictest	2569402	-21	kworker/u8:0+events_unbound	12:21:25	2
2342536	99	59	48,3	cyclictest	2449589	-21	kworker/u8:1+flush-8:0	09:16:22	2
2342534	99	57	53,3	cyclictest	2539188	-21	kworker/u8:2+flush-8:0	10:46:09	1
2342536	99	56	51,4	cyclictest	2658639	-21	kworker/u8:1+events_unbound	12:26:22	2
2536577	2	55	0,4	chrt	0	-21	swapper/0	10:21:16	0
2480676	2	55	0,0	sleep0	20	1	rcuc/0	09:26:14	0
2342534	99	55	51,3	cyclictest	2539188	-21	kworker/u8:2+flush-8:0	11:06:24	1
2342534	99	55	48,5	cyclictest	2554084	-21	kworker/u8:1+flush-8:0	10:56:25	1
2342536	99	54	48,5	cyclictest	2369494	-21	kworker/u8:2+events_unbound	07:41:25	2
2342534	99	54	48,4	cyclictest	2290705	-21	kworker/u8:1+events_unbound	08:16:19	1
2342531	99	54	44,7	cyclictest	2489389	-21	latency_hist	09:35:01	0
2342534	99	53	46,6	cyclictest	2399874	-21	kworker/u8:2+events_unbound	08:41:09	1
2342531	99	53	45,6	cyclictest	280	-21	systemd-journal	11:35:01	0
2342534	99	52	44,6	cyclictest	2464155	-21	kworker/u8:3+events_unbound	10:21:21	1
2342534	99	52	40,5	cyclictest	2489107	-21	kworker/u8:1+events_unbound	09:46:20	1
2342534	99	51	47,3	cyclictest	2648226	-21	kworker/u8:3+flush-8:0	12:31:25	1
2342534	99	51	47,3	cyclictest	2554084	-21	kworker/u8:1+events_unbound	11:01:25	1
2342536	99	50	46,3	cyclictest	2559281	-21	kworker/u8:3+flush-8:0	10:46:20	2
2342536	99	50	42,6	cyclictest	280	-21	systemd-journal	08:40:00	2
2342536	99	50	42,6	cyclictest	280	-21	systemd-journal	08:40:00	2
2342534	99	50	46,3	cyclictest	2380162	-21	kworker/u8:0+flush-8:0	07:56:19	1
2342534	99	50	46,3	cyclictest	2290705	-21	kworker/u8:1+events_unbound	08:21:16	1
2342534	99	50	45,4	cyclictest	2290705	-21	kworker/u8:1+events_unbound	07:26:21	1
2342536	99	49	44,4	cyclictest	2554084	-21	kworker/u8:1+events_unbound	11:21:24	2
2342534	99	49	44,4	cyclictest	2603773	-21	kworker/u8:3+flush-8:0	12:01:21	1
2342534	99	49	44,4	cyclictest	2489107	-21	kworker/u8:1+flush-8:0	09:36:12	1
2342531	99	49	40,6	cyclictest	2499321	-21	latency_hist	09:45:00	0
2342534	99	48	44,3	cyclictest	2569402	-21	kworker/u8:0+events_unbound	12:36:24	1
2342534	99	48	44,3	cyclictest	2569402	-21	kworker/u8:0+events_unbound	12:36:24	1
2342534	99	48	44,3	cyclictest	2554084	-21	kworker/u8:1+flush-8:0	11:21:27	1
2342534	99	48	44,3	cyclictest	2474071	-21	kworker/u8:2+flush-8:0	09:26:25	1
2342534	99	48	44,3	cyclictest	2434525	-21	kworker/u8:0+events_unbound	08:46:29	1
2342534	99	48	44,3	cyclictest	2318142	-21	kworker/u8:0+flush-8:0	07:11:25	1
2342531	99	48	43,4	cyclictest	2380162	-21	kworker/u8:0+events_unbound	07:56:22	0
2342536	99	47	43,3	cyclictest	2318142	-21	kworker/u8:0+events_unbound	07:31:21	2
2342536	99	47	42,3	cyclictest	2539188	-21	kworker/u8:2+flush-8:0	10:26:10	2
2342534	99	47	43,3	cyclictest	2603773	-21	kworker/u8:3+flush-8:0	11:36:24	1
2342534	99	47	43,3	cyclictest	2489107	-21	kworker/u8:1+flush-8:0	09:56:26	1
2342534	99	47	42,4	cyclictest	2318142	-21	kworker/u8:0+flush-8:0	07:16:20	1
2342534	99	46	42,3	cyclictest	2609251	-21	kworker/u8:2+flush-8:0	11:56:21	1
2342534	99	46	42,3	cyclictest	2554084	-21	kworker/u8:1+flush-8:0	11:31:25	1
2342534	99	46	42,3	cyclictest	2554084	-21	kworker/u8:1+flush-8:0	10:41:10	1
2342534	99	46	42,3	cyclictest	2554084	-21	kworker/u8:1+flush-8:0	10:41:10	1
2342531	99	46	37,7	cyclictest	280	-21	systemd-journal	10:16:18	0
2342536	99	45	41,3	cyclictest	2380162	-21	kworker/u8:0+flush-8:0	07:56:24	2
2342536	99	45	41,3	cyclictest	2342408	-21	kworker/u8:3+events_unbound	07:11:20	2
2342536	99	45	41,3	cyclictest	2290705	-21	kworker/u8:1+events_unbound	07:21:27	2
2342534	99	45	41,3	cyclictest	2533180	-21	kworker/u8:1+events_unbound	10:16:27	1
2342534	99	45	41,3	cyclictest	2464155	-21	kworker/u8:3+events_unbound	09:21:10	1
2342534	99	45	41,3	cyclictest	2454536	-21	kworker/u8:0+flush-8:0	10:11:21	1
2342534	99	45	38,5	cyclictest	2489107	-21	kworker/u8:1+flush-8:0	10:01:10	1
2342534	99	45	35,7	cyclictest	2628737	-21	latency_hist	11:55:00	1
2342534	99	44	40,3	cyclictest	2318142	-21	kworker/u8:0+events_unbound	07:31:28	1
2342536	99	43	39,3	cyclictest	2454536	-21	kworker/u8:0+flush-8:0	10:11:26	2
2342536	99	43	38,4	cyclictest	2399874	-21	kworker/u8:2+events_unbound	08:06:29	2
2342534	99	43	39,3	cyclictest	2359490	-21	kworker/u8:4+events_unbound	08:36:12	1
2342534	99	43	39,3	cyclictest	2359490	-21	kworker/u8:4+events_unbound	08:36:12	1
2342534	99	43	38,4	cyclictest	2290705	-21	kworker/u8:1+events_unbound	08:26:15	1
2342531	99	43	35,5	cyclictest	280	-21	systemd-journal	08:55:00	0
2342531	99	43	32,8	cyclictest	2524084	-21	latency_hist	10:10:01	0
2342534	99	42	38,3	cyclictest	2464155	-21	kworker/u8:3+flush-8:0	09:41:20	1
2342534	99	42	38,3	cyclictest	2399874	-21	kworker/u8:2+events_unbound	09:06:09	1
2342534	99	42	37,4	cyclictest	2380162	-21	kworker/u8:0+flush-8:0	07:46:22	1
2342531	99	42	37,4	cyclictest	2548542	-21	kworker/u8:3+events_unbound	10:36:22	0
2342534	99	41	38,2	cyclictest	2464155	-21	kworker/u8:3+events_unbound	10:06:11	1
2342534	99	41	37,3	cyclictest	2359490	-21	kworker/u8:4+flush-8:0	07:36:15	1
2342534	99	41	36,4	cyclictest	2658639	-21	kworker/u8:1+events_unbound	12:26:28	1
2342534	99	41	36,4	cyclictest	2449589	-21	kworker/u8:1+events_unbound	09:11:09	1
2342534	99	41	33,6	cyclictest	2509218	-21	latency_hist	09:55:01	1
2342531	99	41	35,4	cyclictest	2354555	-21	apt-get	07:20:00	0
2342531	99	41	34,5	cyclictest	2399874	-21	kworker/u8:2+flush-8:0	08:06:11	0
2342531	99	41	29,8	cyclictest	280	-21	systemd-journal	11:50:00	0
2342536	99	40	33,5	cyclictest	280	-21	systemd-journal	12:20:00	2
2342534	99	40	36,3	cyclictest	2603773	-21	kworker/u8:3+events_unbound	11:41:08	1
2342534	99	40	36,3	cyclictest	2449589	-21	kworker/u8:1+flush-8:0	08:56:19	1
2342536	99	39	35,3	cyclictest	2658639	-21	kworker/u8:1+events_unbound	12:31:21	2
2342536	99	39	31,6	cyclictest	280	-21	systemd-journal	11:20:00	2
2342534	99	39	35,3	cyclictest	2554084	-21	kworker/u8:1+events_unbound	11:13:22	1
2342534	99	39	35,3	cyclictest	2533180	-21	kworker/u8:1+events_unbound	10:26:28	1
2342534	99	39	35,3	cyclictest	2290705	-21	kworker/u8:1+flush-8:0	08:01:22	1
2342534	99	39	34,3	cyclictest	2638351	-21	kworker/u8:1+flush-8:0	12:11:16	1
2342531	99	39	29,8	cyclictest	280	-21	systemd-journal	09:00:01	0
2342536	99	38	29,7	cyclictest	280	-21	systemd-journal	09:40:00	2
2342534	99	38	34,3	cyclictest	2609251	-21	kworker/u8:2+events_unbound	12:21:15	1
2342531	99	38	24,10	cyclictest	2474334	-21	apt-get	09:20:01	0
2342536	99	37	33,3	cyclictest	2474071	-21	kworker/u8:2+events_unbound	09:31:25	2
2342536	99	37	27,8	cyclictest	280	-21	systemd-journal	10:08:20	2
2342534	99	37	33,3	cyclictest	2454536	-21	kworker/u8:0+events_unbound	10:31:26	1
2342531	99	37	29,6	cyclictest	2379667	-21	apt-get	07:45:01	0
2342534	99	36	31,4	cyclictest	2290705	-21	kworker/u8:1+flush-8:0	07:21:28	1
2342534	99	36	27,6	cyclictest	280	-21	systemd-journal	09:05:01	1
2342531	99	36	28,6	cyclictest	280	-21	systemd-journal	08:21:33	0
2342531	99	36	28,5	cyclictest	2579056	-21	apt	11:05:01	0
2342531	99	36	26,8	cyclictest	2378801	-21	ntpq	07:41:19	0
2342531	99	36	26,7	cyclictest	2568935	-21	latency_hist	10:55:01	0
2342536	99	35	30,3	cyclictest	2454536	-21	kworker/u8:0+events_unbound	09:50:29	2
2342534	99	35	31,3	cyclictest	2290705	-21	kworker/u8:1+flush-8:0	07:51:26	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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