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 #7

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: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the highest latencies:

System rack5slot7s.osadl.org (updated Tue Dec 23, 2025 12:45:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
19274	2	2424	2185,89	sleep0	0	-21	swapper	07:09:47	0
19344	99	163	11,126	cyclictest	1246	-21	head	11:56:02	0
19344	99	161	21,25	cyclictest	2152	-21	apt-get	08:45:17	0
19344	99	160	13,124	cyclictest	21534	-21	apt-get	07:25:18	0
19344	99	158	13,42	cyclictest	24731	-21	latency_hist	07:45:08	0
19344	99	157	15,118	cyclictest	20739	-21	apt-get	07:20:21	0
19344	99	156	16,115	cyclictest	25413	-21	apt-get	07:46:58	0
19344	99	156	14,118	cyclictest	17865	-21	sshd	10:20:22	0
19344	99	156	12,118	cyclictest	16700	-21	apt-get	10:16:03	0
19344	99	156	10,42	cyclictest	14666	-21	grep	10:00:44	0
19344	99	155	14,27	cyclictest	30485	-21	munin-run	08:20:02	0
19344	99	155	14,24	cyclictest	1237	-21	munin-run	08:40:02	0
19344	99	155	14,23	cyclictest	28285	-21	apt-get	11:25:19	0
19344	99	155	13,25	cyclictest	11661	-21	sshd	09:43:19	0
19344	99	154	17,20	cyclictest	4442	-21	munin-run	09:00:04	0
19344	99	154	14,24	cyclictest	22537	-21	wc	07:30:42	0
19344	99	154	14,23	cyclictest	14292	-21	apt	10:00:01	0
19344	99	153	28,16	cyclictest	0	-21	swapper	10:05:42	0
19344	99	153	16,113	cyclictest	4675	-21	apt-get	12:20:30	0
19344	99	153	15,21	cyclictest	2947	-21	apt-get	08:50:19	0
19344	99	152	9,119	cyclictest	4985	-21	find	09:00:57	0
19344	99	152	26,17	cyclictest	0	-21	swapper	09:15:02	0
19344	99	152	17,109	cyclictest	11677	-21	apt-get	09:46:14	0
19344	99	152	11,26	cyclictest	26552	-21	modprobe	11:15:00	0
19344	99	152	10,119	cyclictest	6273	-21	wc	12:26:09	0
19344	99	151	9,23	cyclictest	8386	-21	grep	09:21:01	0
19344	99	151	19,30	cyclictest	9481	-21	diskstats	09:30:35	0
19344	99	151	18,24	cyclictest	20489	-21	memory	10:35:43	0
19344	99	151	18,106	cyclictest	3032	-21	apt-get	12:10:17	0
19344	99	151	14,26	cyclictest	22659	-21	apt-get	10:50:23	0
19344	99	151	13,23	cyclictest	7655	-21	munin-run	09:20:03	0
19344	99	151	13,114	cyclictest	4532	-21	apt-get	12:20:01	0
19344	99	151	12,25	cyclictest	32280	-21	/usr/sbin/munin	11:50:56	0
19344	99	151	12,23	cyclictest	1443	-21	apt-get	12:00:19	0
19344	99	151	11,117	cyclictest	289	-21	snmpd	11:05:49	0
19344	99	150	20,28	cyclictest	20353	-21	diskstats	07:15:17	0
19344	99	150	20,104	cyclictest	23457	-21	apt-get	10:55:20	0
19344	99	150	14,27	cyclictest	21965	-21	df	10:45:24	0
19344	99	149	84,37	cyclictest	27383	-21	/usr/sbin/munin	08:00:48	0
19344	99	149	36,94	cyclictest	32689	-21	swap	08:30:58	0
19344	99	149	18,45	cyclictest	23122	-21	apt	07:35:12	0
19344	99	149	18,25	cyclictest	6475	-21	apt-get	12:30:20	0
19344	99	149	15,112	cyclictest	7374	-21	df_inode	12:35:30	0
19344	99	149	14,21	cyclictest	21070	-21	apt-get	10:40:16	0
19344	99	149	14,108	cyclictest	28193	-21	cat	11:25:03	0
19344	99	149	12,22	cyclictest	26660	-21	apt-get	11:15:19	0
19344	99	149	12,111	cyclictest	31660	-21	irqstats	11:45:39	0
19344	99	149	10,113	cyclictest	20097	-21	head	10:31:02	0
19344	99	148	17,26	cyclictest	29080	-21	apt-get	11:30:17	0
19344	99	148	12,41	cyclictest	30234	-21	ps	11:35:56	0
19344	99	148	12,112	cyclictest	289	-21	snmpd	09:25:18	0
19344	99	148	11,25	cyclictest	19080	-21	find	10:25:57	0
19344	99	148	10,23	cyclictest	6062	-21	sort	09:10:04	0
19344	99	147	13,112	cyclictest	10948	-21	wc	09:40:06	0
19344	99	146	9,113	cyclictest	30787	-21	grep	08:20:41	0
19344	99	146	36,19	cyclictest	16313	-21	ntpq	10:10:48	0
19344	99	146	33,92	cyclictest	13100	-21	ntp_kernel_pll_	09:50:54	0
19344	99	146	16,106	cyclictest	32097	-21	munin-run	08:30:03	0
19344	99	146	15,93	cyclictest	26566	-21	apt-get	07:55:20	0
19344	99	146	12,111	cyclictest	19441	-21	apt-get	07:10:18	0
19344	99	145	39,85	cyclictest	31107	-21	rt-features	11:40:56	0
19344	99	144	20,23	cyclictest	2012	-21	users	08:41:04	0
19344	99	144	17,26	cyclictest	28177	-21	/usr/sbin/munin	08:05:57	0
19344	99	144	11,25	cyclictest	29081	-21	df	08:10:27	0
19344	99	143	17,103	cyclictest	2239	-21	apt-get	12:05:19	0
19344	99	143	11,22	cyclictest	25057	-21	sort	11:05:06	0
19344	99	142	69,32	cyclictest	26418	-21	unixbench_singl	07:51:09	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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