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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 the 792 highest latencies:

System rackfslot4s.osadl.org (updated Fri Mar 06, 2026 12:44:35)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
32699	2	123	0,2	chrt	32702	-21	aten2.4_rfpower	07:30:26	0
7042	2	121	0,3	chrt	7043	-21	runrttasks	11:00:27	0
20175	2	119	0,2	chrt	20149	-21	ntpq	09:42:06	0
29093	2	118	0,3	chrt	29094	-21	sleep	09:55:44	0
10577	2	118	0,2	chrt	10578	-21	chrt	09:27:34	0
28301	2	117	0,4	chrt	28299	-21	ld	11:31:24	0
26789	2	115	0,3	chrt	26786	-21	ntpq	09:51:42	0
14083	2	115	0,3	chrt	14084	-21	seq	09:32:58	0
24014	2	114	0,2	chrt	24015	-21	irqrtprio	07:15:44	0
15889	2	114	0,1	sleep0	15890	-21	runrttasks	10:24:53	0
25606	2	113	0,2	sleep0	25607	-21	chrt	09:00:48	0
25480	2	113	0,2	sleep0	25482	-21	awk	11:27:30	0
15881	2	113	0,2	sleep0	15880	-21	seq	11:13:04	0
31801	2	112	0,2	chrt	31800	-21	sshd	11:36:44	0
11797	2	111	0,4	chrt	11798	-21	sleep	10:18:04	0
2649	2	109	0,2	sleep0	2651	-21	runrttasks	12:30:58	0
2330	2	109	0,2	chrt	2329	-21	seq	10:52:27	0
12975	2	109	0,3	chrt	12978	-21	grep	07:50:25	0
25642	2	108	0,1	sleep0	25643	-21	runrttasks	10:39:26	0
21168	2	107	0,3	chrt	21167	-21	ld	07:10:56	0
12179	2	107	0,2	chrt	12180	-21	sleep	07:49:03	0
8178	2	102	0,3	chrt	8179	-21	sh	07:42:09	0
19193	2	100	0,1	sleep0	19194	-21	collect2	12:06:34	0
16192	2	100	0,1	sleep0	16193	-21	sort	07:55:33	0
19174	2	98	0,2	sleep0	19175	-21	rm	10:29:49	0
24190	2	96	0,2	sleep0	24191	-21	chrt	12:14:52	0
28475	2	95	0,2	sleep0	28478	-21	sort	12:20:58	0
24886	2	95	0,2	sleep0	24887	-21	runrttasks	09:49:24	0
3809	2	92	0,2	sleep0	3810	-21	/usr/sbin/munin	10:55:33	0
32177	2	86	0,1	sleep0	32179	-21	grep	12:26:10	0
22288	2	83	0,2	sleep0	22290	-21	ssh	10:34:20	0
8996	2	80	0,2	sleep0	8997	-21	chrt	08:35:31	0
18565	2	80	0,2	sleep0	18564	-21	seq	11:17:09	0
5860	2	79	0,2	sleep0	5861	-21	cat	09:21:02	0
3261	2	77	0,4	sleep0	3264	-21	sed	08:25:44	0
19956	90	76	17,9	cyclictest	17207	-21	rm	12:04:00	0
4775	2	75	0,2	sleep0	4777	-21	aten2.4_rfpower	11:45:34	0
31405	2	75	0,2	sleep0	31406	-21	fschecks_count	09:10:55	0
19956	90	74	3,19	cyclictest	13066	-21	ntpq	08:40:56	0
19956	90	73	6,11	cyclictest	14306	-21	munin-run	12:00:02	0
19956	90	73	6,10	cyclictest	19918	-21	python3	08:51:26	0
19956	90	73	5,18	cyclictest	4255	-21	ntpq	07:35:57	0
19956	90	73	5,12	cyclictest	25367	-21	apt-get	08:10:54	0
19956	90	73	5,12	cyclictest	25213	-21	if_eth0	12:16:02	0
19956	90	73	14,10	cyclictest	5865	-21	seq	10:09:47	0
19956	90	72	6,18	cyclictest	28450	-21	/usr/sbin/munin	08:15:34	0
19956	90	72	6,10	cyclictest	15994	-21	diskstats	08:46:25	0
19956	90	72	5,20	cyclictest	29246	-21	python3	09:06:27	0
19956	90	72	5,19	cyclictest	412	-21	snmpd	10:00:34	0
19956	90	72	5,19	cyclictest	10253	-21	/usr/sbin/munin	11:05:45	0
19956	90	72	4,20	cyclictest	21875	-21	runrttasks	11:22:04	0
19956	90	72	4,12	cyclictest	27720	-21	ntp_states	10:42:01	0
19956	90	72	11,9	cyclictest	5478	-21	telnet	12:35:32	0
19956	90	71	7,13	cyclictest	8187	-21	users	10:12:25	0
19956	90	71	6,12	cyclictest	1679	-21	diskstats	11:40:46	0
19956	90	71	5,12	cyclictest	31040	-21	ntp_states	10:47:01	0
19956	90	71	5,11	cyclictest	22573	-21	ntpq	08:55:53	0
19956	90	71	4,18	cyclictest	19126	-21	chrt	08:00:25	0
19956	90	71	3,19	cyclictest	27705	-21	ntpq	07:21:28	0
19956	90	71	10,17	cyclictest	412	-21	snmpd	08:35:05	0
19956	90	70	6,10	cyclictest	7850	-21	apt-get	11:50:25	0
19956	90	70	5,11	cyclictest	22246	-21	stty	08:05:24	0
19956	90	70	13,9	cyclictest	1113	-21	tr	08:22:14	0
19956	90	70	11,12	cyclictest	20024	-21	latency_hist	07:10:04	0
19956	90	69	5,16	cyclictest	30534	-21	ld	07:25:58	0
19956	90	69	10,10	cyclictest	3032	-21	ntpq	09:16:25	0
19956	90	68	6,11	cyclictest	15610	-21	diskstats	09:35:47	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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