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Default latency plot of shadow in rack #f, 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
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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 all highest latencies:

System rackfslot4s.osadl.org (updated Sat Jun 27, 2026 12:44:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
30557	2	148	0,2	sleep0	30559	-21	grep	07:06:01	0
13277	2	128	0,2	chrt	11178	-21	/usr/sbin/munin	10:02:32	0
7740	2	123	0,3	chrt	7738	-21	ls	12:20:36	0
15094	2	122	0,2	chrt	15095	-21	ssh	10:54:11	0
27058	2	121	0,2	sleep0	27059	-21	seq	10:23:29	0
23704	2	121	0,2	chrt	23706	-21	cut	09:30:31	0
13373	2	120	0,2	chrt	13371	-21	ld	07:30:58	0
12086	2	116	0,2	sleep0	12087	-21	seq	11:38:09	0
10022	2	116	0,2	sleep0	10023	-21	ls	09:10:04	0
30792	2	113	0,3	chrt	30791	-21	seq	10:29:25	0
17215	2	113	0,2	chrt	17214	-21	seq	10:08:59	0
28059	2	112	0,2	sleep0	28057	-21	memory	09:36:16	0
26903	2	112	0,2	chrt	26904	-21	sleep	11:11:26	0
22308	2	112	0,2	chrt	22309	-21	sleep	11:53:45	0
18528	2	109	0,2	chrt	18529	-21	sleep	10:10:59	0
11681	2	109	0,2	sleep0	11682	-21	gcc	09:11:53	0
19726	2	108	0,3	chrt	19727	-21	ssh	12:38:00	0
22154	2	107	0,2	chrt	22157	-21	wc	09:27:26	0
1411	2	106	0,3	chrt	1412	-21	hostname	09:45:37	0
8871	2	104	0,3	chrt	8872	-21	sleep	07:24:44	0
10830	2	104	0,2	chrt	10831	-21	seq	09:59:43	0
30854	2	103	0,3	chrt	30855	-21	sleep	07:59:52	0
5365	2	102	0,2	chrt	5366	-21	runrttasks	08:10:37	0
22406	2	102	0,2	sleep0	22407	-21	chrt	11:05:31	0
16735	2	101	0,2	sleep0	16738	-21	grep	10:56:10	0
7902	2	100	0,2	chrt	7903	-21	sh	10:43:18	0
15029	2	100	0,2	sleep0	15033	-21	wc	11:42:23	0
3031	2	98	0,2	sleep0	3034	-21	chrt	11:25:04	0
6291	2	96	0,2	sleep0	6293	-21	grep	11:30:03	0
31396	2	94	0,1	sleep0	31398	-21	sed	09:41:13	0
21793	2	90	0,2	sleep0	21794	-21	awk	08:36:24	0
26374	2	86	0,1	sleep0	26375	-21	dpkg	12:00:12	0
26494	2	82	0,2	sleep0	26495	-21	chrt	08:45:05	0
813	2	81	0,2	sleep0	814	-21	seq	08:55:11	0
9795	2	75	0,2	sleep0	9798	-21	irqrtprio	10:46:08	0
13815	2	74	0,2	sleep0	13816	-21	basename	09:15:38	0
10220	2	70	0,1	sleep0	10221	-21	chrt	07:25:54	0
7436	2	67	0,2	sleep0	7437	-21	irqrtprio	11:31:07	0
29061	2	65	0,1	sleep0	29062	-21	stty	11:15:30	0
17639	2	65	0,2	sleep0	17640	-21	ssh	11:46:19	0
21881	2	64	0,2	sleep0	21882	-21	rm	10:16:01	0
22646	2	62	0,1	sleep0	22647	-21	seq	07:45:54	0
31228	2	61	0,2	sleep0	31229	-21	aten2.4_rfpower	08:00:23	0
24389	2	61	4,8	sleep0	24380	-21	ntpq	11:56:35	0
2136	2	60	5,9	sleep0	2137	-21	ntpq	12:11:42	0
19987	2	60	3,10	sleep0	19992	-21	python3	07:41:26	0
32642	2	59	0,2	sleep0	32640	-21	ntp_kernel_pll_	10:31:38	0
24922	2	58	3,8	sleep0	24926	-21	sleep	07:50:14	0
15195	2	57	3,44	sleep0	15235	-21	ntpq	08:25:50	0
12087	2	57	3,44	sleep0	12063	-21	ssh	12:26:41	0
20588	2	56	4,7	sleep0	20592	-21	runrttasks	11:02:02	0
4302	2	51	0,2	sleep0	4303	-21	chrt	10:37:45	0
11466	2	49	3,38	sleep0	11472	-21	diskstats	08:20:32	0
32146	90	48	17,24	cyclictest	0	-21	swapper	12:09:23	0
18137	2	47	2,6	sleep0	18128	-21	ssh	09:21:23	0
31760	2	46	3,34	sleep0	31765	-21	ldconfig	08:52:08	0
32318	2	45	3,32	sleep0	32299	-21	apt-get	07:10:18	0
32146	90	45	5,12	cyclictest	2125	-21	df_inode	08:05:31	0
15431	2	45	0,3	chrt	15432	-21	runrttasks	07:35:23	0
32146	90	43	5,18	cyclictest	9000	-21	ntpq	08:15:52	0
32146	90	42	14,21	cyclictest	0	-21	swapper	12:18:37	0
32146	90	41	4,19	cyclictest	5664	-21	ssh	09:51:22	0
32146	90	40	5,16	cyclictest	13785	-21	apt-get	12:30:34	0
32146	90	40	4,9	cyclictest	5105	-21	ntpq	09:01:04	0
32146	90	40	4,19	cyclictest	18570	-21	ntp_states	08:31:15	0
32146	90	39	16,15	cyclictest	3520	-21	if_err_eth0	07:15:41	0
32146	90	39	16,15	cyclictest	27257	-21	telnet	08:46:15	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-02-27 - 12:39