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 #7, slot #2

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 376 highest latencies:

System rack7slot2.osadl.org (updated Sun May 24, 2026 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2287402	99	108	96,9	cyclictest	2391365	-21	kworker/u4:5+events_unbound	10:35:14	1
2287399	99	99	92,5	cyclictest	2306621	-21	kworker/u4:16+events_unbound	08:29:45	0
2287402	99	96	84,6	cyclictest	2466032	-21	kworker/u4:6+events_unbound	12:05:35	1
2287399	99	95	89,4	cyclictest	2298932	-21	kworker/u4:20+events_unbound	07:59:38	0
2287399	99	95	74,15	cyclictest	2406796	-21	ssh	10:50:23	0
2287399	99	94	87,5	cyclictest	2273204	-21	kworker/u4:15+events_unbound	07:49:36	0
2287399	99	91	83,6	cyclictest	2275856	-21	kworker/u4:1+events_unbound	07:34:34	0
2287399	99	91	80,9	cyclictest	2413616	-21	kworker/u4:5+events_unbound	11:20:27	0
2287399	99	89	82,5	cyclictest	2306619	-21	kworker/u4:14+events_unbound	08:24:43	0
2287402	99	87	69,6	cyclictest	2307891	-21	kworker/u4:19+events_unbound	09:09:57	1
2287399	99	87	80,5	cyclictest	2304041	-21	kworker/u4:2+events_unbound	08:44:50	0
2287399	99	87	80,5	cyclictest	2304041	-21	kworker/u4:2+events_unbound	08:44:49	0
2287399	99	84	78,5	cyclictest	2302769	-21	kworker/u4:5+events_unbound	08:39:49	0
2287399	99	82	75,5	cyclictest	2273203	-21	kworker/u4:14+events_unbound	07:24:33	0
2287402	99	80	72,6	cyclictest	2069677	-21	kworker/u4:9+events_unbound	08:00:01	1
2287399	99	79	55,16	cyclictest	2318307	-21	diskmemload	12:05:09	0
2287402	99	72	64,5	cyclictest	2342869	-21	kworker/u4:3+events_unbound	09:45:02	1
2287399	99	72	57,6	cyclictest	2474854	-21	kworker/u4:4+events_unbound	12:20:03	0
2287402	99	70	61,6	cyclictest	2374146	-21	kworker/u4:6+events_unbound	11:00:01	1
2287402	99	68	60,6	cyclictest	2351852	-21	kworker/u4:1+events_unbound	09:50:12	1
2287402	99	67	56,7	cyclictest	53	-21	kswapd0	10:00:01	1
2287402	99	66	60,4	cyclictest	2474854	-21	kworker/u4:4+events_unbound	12:20:00	1
2287402	99	64	56,6	cyclictest	2342876	-21	kworker/u4:12+events_unbound	10:05:07	1
2287402	99	64	55,6	cyclictest	2488211	-21	kworker/u4:6+events_unbound	12:30:41	1
2287402	99	64	43,8	cyclictest	2306621	-21	kworker/u4:16+events_unbound	09:35:00	1
2287402	99	64	43,8	cyclictest	2306621	-21	kworker/u4:16+events_unbound	09:35:00	1
2287399	99	64	4,13	cyclictest	2474856	-21	kworker/u4:10+rpciod	12:10:31	0
2287402	99	62	48,12	cyclictest	2319157	-21	if_eth0	09:10:20	1
2287399	99	62	57,3	cyclictest	0	-21	swapper/0	10:00:26	0
2287402	99	61	52,6	cyclictest	2273203	-21	kworker/u4:14+events_unbound	07:40:01	1
2287399	99	61	56,3	cyclictest	2307891	-21	kworker/u4:19+events_unbound	09:10:01	0
2287399	99	61	53,6	cyclictest	2302769	-21	kworker/u4:5+events_unbound	08:15:03	0
2287399	99	61	42,6	cyclictest	2391364	-21	kworker/u4:4+rpciod	10:37:15	0
2287402	99	60	55,4	cyclictest	2342876	-21	kworker/u4:12+events_unbound	11:55:03	1
2287399	99	60	50,7	cyclictest	0	-21	swapper/0	11:40:46	0
2287402	99	59	53,4	cyclictest	2316997	-21	kworker/u4:0+events_unbound	09:15:14	1
2287402	99	58	46,9	cyclictest	378	-21	dbus-daemon	10:15:09	1
2287399	99	58	44,9	cyclictest	37	-21	kcompactd0	10:47:45	0
2287399	99	58	39,16	cyclictest	2421048	-21	sed	11:05:40	0
2287399	99	58	30,22	cyclictest	0	-21	swapper/0	09:35:17	0
2287399	99	58	30,22	cyclictest	0	-21	swapper/0	09:35:17	0
2287402	99	56	48,6	cyclictest	2395832	-21	kworker/u4:10+events_unbound	11:25:14	1
2287402	99	56	47,7	cyclictest	0	-21	swapper/1	10:20:31	1
2287402	99	56	46,7	cyclictest	0	-21	swapper/1	11:20:26	1
2287402	99	56	45,8	cyclictest	0	-21	swapper/1	11:30:31	1
2287399	99	56	26,26	cyclictest	256	50	irq/23-42890000.ethernet	12:00:10	0
2287402	99	55	48,5	cyclictest	2460605	-21	/usr/sbin/munin	11:50:38	1
2287402	99	55	41,11	cyclictest	2349331	-21	latency_hist	09:45:01	1
2287399	99	55	41,8	cyclictest	2315656	-21	apt-get	09:00:11	0
2287399	99	55	41,8	cyclictest	2315656	-21	apt-get	09:00:11	0
2287399	99	55	2,36	cyclictest	2318307	-21	diskmemload	11:45:11	0
2287402	99	54	49,3	cyclictest	2301497	-21	kworker/u4:3+events_unbound	08:19:40	1
2287402	99	54	38,13	cyclictest	2307518	-21	ps	08:25:37	1
2287399	99	54	34,15	cyclictest	256	50	irq/23-42890000.ethernet	09:15:09	0
2287402	99	53	46,5	cyclictest	2332607	-21	ntp_kernel_err	09:25:24	1
2287399	99	53	41,8	cyclictest	2293737	-21	kworker/u4:10+xprtiod	07:35:12	0
2287402	99	52	43,6	cyclictest	2301496	-21	kworker/u4:0+events_unbound	08:04:38	1
2287399	99	52	44,5	cyclictest	2327634	-21	cut	09:20:16	0
2287402	99	51	43,5	cyclictest	2456356	-21	/usr/sbin/munin	11:45:45	1
2287402	99	51	43,5	cyclictest	0	-21	swapper/1	11:40:18	1
2287402	99	51	42,7	cyclictest	2402343	-21	aten2__	10:45:16	1
2287402	99	51	36,9	cyclictest	2406585	-21	apt-get	10:50:16	1
2287399	99	51	31,18	cyclictest	0	-21	swapper/0	11:55:33	0
2287399	99	51	28,5	cyclictest	0	-21	swapper/0	12:30:27	0
2287402	99	50	43,5	cyclictest	2277122	-21	kworker/u4:7+events_unbound	08:54:55	1
2287399	99	50	44,5	cyclictest	2488210	-21	kworker/u4:3+events_unbound	12:36:00	0
2287399	99	50	44,4	cyclictest	2353811	-21	grep	09:50:01	0
2287399	99	50	41,7	cyclictest	2304050	-21	systemd	08:14:38	0
2287399	99	50	37,6	cyclictest	2306620	-21	kworker/u4:15+events_unbound	08:47:45	0
2287399	99	50	29,19	cyclictest	2374144	-21	ssh	10:12:42	0
2287402	99	49	40,5	cyclictest	2488211	-21	kworker/u4:6+events_unbound	12:25:40	1
2287402	99	49	36,10	cyclictest	2327992	-21	fschecks_time	09:20:21	1
2287399	99	49	35,11	cyclictest	2358751	-21	fschecks_count	09:55:20	0
2287399	99	49	31,16	cyclictest	2398560	-21	/usr/sbin/munin	10:40:23	0
2287402	99	48	41,5	cyclictest	2296062	-21	sendmail_mailqu	07:40:38	1
2287402	99	48	39,7	cyclictest	2374146	-21	kworker/u4:6+events_unbound	10:30:00	1
2287402	99	48	39,6	cyclictest	2306620	-21	kworker/u4:15+events_unbound	08:49:52	1
2287399	99	48	41,5	cyclictest	2482086	-21	ntp_offset	12:15:30	0
2287399	99	48	39,6	cyclictest	2354149	-21	aten_r7power_vo	09:50:16	0
2287399	99	48	38,7	cyclictest	2301361	-21	unixbench-2d	08:00:38	0
2287402	99	47	40,5	cyclictest	531	-21	in:imuxsock	10:40:15	1
2287402	99	47	40,5	cyclictest	2308492	-21	gltestperf	08:30:17	1
2287402	99	47	40,5	cyclictest	2292468	-21	kworker/u4:4+events_unbound	07:54:36	1
2287402	99	47	39,6	cyclictest	2306621	-21	kworker/u4:16+events_unbound	09:35:15	1
2287402	99	47	39,6	cyclictest	2306621	-21	kworker/u4:16+events_unbound	09:35:14	1
2287402	99	47	39,5	cyclictest	2310941	-21	tune2fs	08:40:18	1
2287402	99	47	39,5	cyclictest	2310941	-21	tune2fs	08:40:18	1
2287399	99	47	40,5	cyclictest	2292468	-21	kworker/u4:4+events_unbound	07:53:02	0
2287399	99	47	38,7	cyclictest	2491342	-21	unixbench_multi	12:25:42	0
2287399	99	47	38,7	cyclictest	2447048	-21	diskmemload	11:35:26	0
2287402	99	46	40,4	cyclictest	2416227	-21	ntpq	11:00:31	1
2287402	99	46	38,6	cyclictest	2362786	-21	acpi	10:00:11	1
2287402	99	46	38,6	cyclictest	0	-21	swapper/1	12:10:36	1
2287399	99	46	4,29	cyclictest	2386364	-21	ssh	10:26:09	0
2287399	99	46	40,5	cyclictest	2273204	-21	kworker/u4:15+events_unbound	07:43:02	0
2287399	99	46	40,4	cyclictest	2419726	-21	latency_hist	11:05:02	0
2287399	99	46	40,4	cyclictest	2318703	-21	aten_r7power_en	09:10:16	0
2287399	99	46	39,5	cyclictest	2389558	-21	gltestperf	10:30:21	0
2287399	99	46	39,5	cyclictest	2273203	-21	kworker/u4:14+events_unbound	07:26:01	0
2287399	99	46	39,5	cyclictest	2273203	-21	kworker/u4:14+events_unbound	07:26:00	0
2287399	99	46	38,6	cyclictest	2277122	-21	kworker/u4:7+events_unbound	08:05:04	0
2287402	99	45	38,5	cyclictest	2499485	-21	ntp_kernel_err	12:35:23	1
2287402	99	45	37,6	cyclictest	2306630	-21	systemd	08:24:43	1
2287402	99	45	37,5	cyclictest	2446564	-21	/usr/sbin/munin	11:35:15	1
2287402	99	45	35,7	cyclictest	0	-21	swapper/1	10:30:24	1
2287399	99	45	39,5	cyclictest	2413616	-21	kworker/u4:5+events_unbound	11:13:21	0
2287399	99	45	38,5	cyclictest	2332746	-21	ntp_offset	09:25:31	0
2287399	99	45	38,5	cyclictest	2306621	-21	kworker/u4:16+events_unbound	08:32:01	0
2287399	99	45	34,7	cyclictest	2338301	-21	ssh	09:31:38	0
2287399	99	45	34,7	cyclictest	2338301	-21	ssh	09:31:37	0
2287399	99	45	32,10	cyclictest	0	-21	swapper/0	10:55:41	0
2287402	99	44	38,5	cyclictest	2303937	-21	tail	08:10:40	1
2287402	99	44	35,7	cyclictest	2421203	-21	unixbench_singl	11:05:41	1
2287402	99	44	34,6	cyclictest	0	-21	swapper/1	12:00:34	1
2287399	99	44	38,4	cyclictest	2368361	-21	ls	10:05:43	0
2287399	99	44	36,5	cyclictest	2305322	-21	kworker/u4:12-rpciod	08:55:21	0
2287399	99	44	30,11	cyclictest	2460977	-21	ssh	11:50:54	0
2287402	99	43	36,5	cyclictest	2428930	-21	df_abs	11:15:17	1
2287402	99	43	36,5	cyclictest	2315669	-21	basename	09:00:01	1
2287402	99	43	34,6	cyclictest	0	-21	swapper/1	11:10:26	1
2287402	99	43	33,7	cyclictest	2474854	-21	kworker/u4:4+events_unbound	12:20:13	1
2287402	99	43	33,7	cyclictest	2296853	-21	fschecks_count	07:45:17	1
2287402	99	43	33,7	cyclictest	0	-21	swapper/1	09:00:46	1
2287402	99	43	33,7	cyclictest	0	-21	swapper/1	09:00:46	1
2287402	99	43	15,20	cyclictest	2372206	-21	ssh	10:10:26	1
2287399	99	43	8,5	cyclictest	15	1	ktimers/0	10:15:30	0
2287399	99	43	37,4	cyclictest	0	-21	swapper/0	07:19:32	0
2287399	99	43	36,5	cyclictest	2442922	-21	/usr/sbin/munin	11:30:36	0
2287399	99	43	36,4	cyclictest	2346169	-21	cat	09:40:39	0
2287399	99	43	35,5	cyclictest	2313623	-21	fschecks_time	08:50:20	0
2287399	99	43	34,6	cyclictest	2369705	-21	kworker/u4:14-rpciod	10:25:00	0
2287402	99	42	34,6	cyclictest	2271903	-21	kworker/u4:5+events_unbound	07:10:37	1
2287402	99	42	34,5	cyclictest	2289011	-21	df_abs	07:15:15	1
2287399	99	42	34,6	cyclictest	2288053	-21	kernelversion	07:10:24	0
2287402	99	41	34,5	cyclictest	2292503	-21	munin-plugin-st	07:30:00	1
2287402	99	41	34,5	cyclictest	2292503	-21	munin-plugin-st	07:30:00	1
2287402	99	41	32,7	cyclictest	2291054	-21	timerwakeupswit	07:20:36	1
2287402	99	41	32,6	cyclictest	0	-21	swapper/1	07:30:29	1
2287399	99	41	32,7	cyclictest	2437903	-21	fschecks_time	11:25:20	0
2287399	99	41	31,7	cyclictest	0	-21	swapper/0	11:15:32	0
2287402	99	38	23,12	cyclictest	0	-21	swapper/1	08:35:16	1
2287399	99	38	30,6	cyclictest	2287459	-21	latency_hist	07:10:03	0
2287402	99	37	30,5	cyclictest	2301497	-21	kworker/u4:3-rpciod	08:05:38	1
2287402	99	32	23,7	cyclictest	0	-21	swapper/1	07:10:02	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