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2023-05-28 - 03:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #6

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 
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  TQ-Systems

x86 Intel Atom E3825 @1333 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of shadow in rack #b, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 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 rackbslot6s.osadl.org (updated Sun May 28, 2023 00:42:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32725911580,5ptp4l231rcuc/101:18:291
321152980,2sleep10-21swapper/104:57:131
3272591960,1ptp4l241ktimersoftd/103:33:091
3272591900,2ptp4l231rcuc/106:07:191
3272591900,2ptp4l231rcuc/106:07:191
3272591890,2ptp4l231rcuc/106:40:031
3272591890,2ptp4l231rcuc/106:30:111
3272591890,2ptp4l231rcuc/104:47:451
3272591890,2ptp4l231rcuc/103:48:181
3272591890,2ptp4l231rcuc/103:23:541
3272591880,2ptp4l241ktimersoftd/101:32:111
3272591880,2ptp4l231rcuc/105:59:401
3272591870,2ptp4l231rcuc/106:04:581
3272591870,2ptp4l231rcuc/105:55:281
3272591860,2ptp4l231rcuc/106:13:301
3272591860,2ptp4l231rcuc/105:27:361
3272591860,2ptp4l231rcuc/103:52:471
3272591850,2ptp4l231rcuc/105:39:321
3272591850,2ptp4l231rcuc/103:46:041
3272591840,2ptp4l231rcuc/105:46:501
3272591830,2ptp4l231rcuc/104:15:291
3272591830,2ptp4l231rcuc/103:59:021
3272591830,1ptp4l231rcuc/104:44:161
3272591820,2ptp4l231rcuc/106:25:291
3272591820,2ptp4l231rcuc/106:18:561
3272591820,2ptp4l231rcuc/105:11:381
3272591820,2ptp4l231rcuc/104:24:261
3272591820,2ptp4l231rcuc/103:07:291
3272591820,2ptp4l231rcuc/103:05:581
3272591820,2ptp4l231rcuc/102:42:071
3272591820,2ptp4l231rcuc/101:47:171
99802810,2sleep00-21swapper/001:37:110
3272591810,2ptp4l231rcuc/105:41:511
3272591810,2ptp4l231rcuc/104:02:271
3272591810,2ptp4l231rcuc/102:12:061
3272591810,2ptp4l231rcuc/102:02:211
3272591800,2ptp4l231rcuc/106:50:111
3272591800,2ptp4l231rcuc/106:33:261
3272591800,2ptp4l231rcuc/105:36:211
3272591800,2ptp4l231rcuc/105:15:271
3272591800,2ptp4l231rcuc/105:03:031
3272591800,2ptp4l231rcuc/103:38:331
3272591800,2ptp4l231rcuc/102:22:001
3272591800,1ptp4l231rcuc/104:06:551
3272591800,1ptp4l231rcuc/101:21:591
3272591790,2ptp4l231rcuc/104:53:451
3272591790,2ptp4l231rcuc/104:31:201
3272591790,2ptp4l231rcuc/103:12:181
3272591790,2ptp4l231rcuc/102:34:421
3272591790,2ptp4l231rcuc/101:42:051
3272591780,2ptp4l231rcuc/106:46:041
3272591780,2ptp4l231rcuc/102:57:571
3272591780,2ptp4l231rcuc/102:52:331
3272591780,2ptp4l231rcuc/102:46:551
3272591780,2ptp4l231rcuc/102:29:131
3272591780,2ptp4l231rcuc/102:10:551
3272591780,2ptp4l231rcuc/101:37:501
3272591780,1ptp4l241ktimersoftd/104:34:491
3272591770,2ptp4l231rcuc/103:17:191
3272591760,2ptp4l231rcuc/105:17:401
3272591760,2ptp4l231rcuc/103:29:541
2219996716,13cyclictest14289-21apt-get05:57:070
2219996622,12cyclictest11099-21apt-get05:12:060
2219996518,17cyclictest27242-21snmpd04:23:480
3272591640,6ptp4l25-21ksoftirqd/102:16:521
3272591500,1ptp4l241ktimersoftd/105:24:181
3272591500,1ptp4l241ktimersoftd/104:41:421
3272591500,1ptp4l241ktimersoftd/104:19:271
204072500,8sleep0221999cyclictest05:22:290
2220994839,4cyclictest25-21ksoftirqd/101:58:071
2219994839,5cyclictest9-21ksoftirqd/004:40:190
2219994838,5cyclictest9-21ksoftirqd/001:58:130
221999481,10cyclictest32552sleep006:23:280
2219994727,6cyclictest9-21ksoftirqd/001:42:270
2219994638,5cyclictest9-21ksoftirqd/002:44:000
2219994637,5cyclictest9-21ksoftirqd/004:59:490
2219994636,6cyclictest9-21ksoftirqd/005:33:180
2219994629,6cyclictest12471-21basename03:51:420
11502465,26sleep01212-21phc2sys01:17:080
3272591450,1ptp4l241ktimersoftd/102:39:041
3272591450,1ptp4l241ktimersoftd/102:39:041
2219994536,5cyclictest9-21ksoftirqd/002:12:390
2219994434,6cyclictest13905-21ssh05:56:450
2219994433,6cyclictest21566-21/usr/sbin/munin03:22:190
2219994429,12cyclictest31697-21sendmail_mailqu02:27:140
2219994333,6cyclictest9-21ksoftirqd/001:31:110
2219994333,5cyclictest8627-21sh05:48:540
2219994319,6cyclictest9-21ksoftirqd/004:55:480
2219994218,19cyclictest28342-21ssh06:13:540
2219994217,7cyclictest23571-21ssh04:05:010
2219994217,19cyclictest26834-21ssh04:50:310
2219994131,5cyclictest22490-21sh06:48:530
2219994018,17cyclictest11110-21ssh06:33:590
3272591390,1ptp4l231rcuc/101:28:231
2219993930,5cyclictest31530-21sh03:33:270
2219993921,6cyclictest9-21ksoftirqd/005:07:540
2219993921,6cyclictest9-21ksoftirqd/003:58:530
222099382,9cyclictest121rcu_preempt01:52:551
2219993828,5cyclictest845-21runrttasks03:10:040
2219993816,7cyclictest9-21ksoftirqd/003:37:090
2219993714,7cyclictest9-21ksoftirqd/001:52:550
2219993613,7cyclictest9-21ksoftirqd/003:42:060
2219993613,6cyclictest9-21ksoftirqd/005:05:360
2219993612,8cyclictest9-21ksoftirqd/003:00:360
326452351,4sleep016167-1kworker/u5:104:17:000
221999359,14cyclictest8087-21acpi04:27:050
2219993527,5cyclictest10579-21runrttasks02:55:330
221999348,10cyclictest111rcuc/004:43:570
2219993412,7cyclictest5903-21irqrtprio06:27:420
2219993410,8cyclictest9-21ksoftirqd/002:33:520
2219993410,7cyclictest9-21ksoftirqd/002:17:560
221999339,7cyclictest9-21ksoftirqd/001:31:440
2219993311,6cyclictest9-21ksoftirqd/006:02:220
2219993220,7cyclictest21265-21cron03:21:420
221999321,3cyclictest0-21swapper/003:03:450
2219993211,6cyclictest9-21ksoftirqd/005:42:240
2219993210,6cyclictest9-21ksoftirqd/006:37:220
221999318,7cyclictest9-21ksoftirqd/002:23:540
221999318,7cyclictest15144-21/usr/sbin/munin05:17:060
221999317,7cyclictest9-21ksoftirqd/001:48:120
221999313,12cyclictest28717-21apt-get04:12:060
2219993121,6cyclictest9-21ksoftirqd/005:38:120
2219993121,6cyclictest9-21ksoftirqd/002:36:500
2219993121,6cyclictest9-21ksoftirqd/002:36:500
2219993120,7cyclictest9-21ksoftirqd/002:03:290
221999311,27cyclictest42650irq/98-enp4s0-t02:47:240
2219993110,7cyclictest30259-21ssh06:17:140
221999303,12cyclictest9-21ksoftirqd/004:06:480
221999302,14cyclictest18182-21ssh06:42:470
2219993020,6cyclictest9-21ksoftirqd/001:21:540
2219993019,6cyclictest9-21ksoftirqd/002:08:010
2219993018,8cyclictest9-21ksoftirqd/003:52:110
2219993013,7cyclictest26322-21latency03:27:130
2219993010,16cyclictest23456-21snmp_o5powerctl06:07:280
2219993010,16cyclictest23456-21snmp_o5powerctl06:07:280
221999294,20cyclictest23843-21missed_timers05:27:180
221999291,23cyclictest13316-21snmp_o5powerctl04:32:220
2219992717,5cyclictest7777-21sshd03:12:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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