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2023-03-31 - 11:57

x86 Intel Core i5-8365UE @1600 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #8, slot #4
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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack8slot4.osadl.org (updated Fri Mar 31, 2023 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10639522251183,55sleep20-21swapper/219:08:012
10640032242181,22sleep60-21swapper/619:08:446
10640852237176,19sleep40-21swapper/419:09:564
10616702237179,20sleep00-21swapper/019:05:100
106193122270,4sleep546-21ksoftirqd/519:05:135
10639242225197,19sleep10-21swapper/119:07:361
10637932221188,22sleep30-21swapper/319:05:453
10637882217165,17sleep70-21swapper/719:05:417
12556252600,0sleep10-21swapper/122:58:531
11548322590,0sleep70-21swapper/721:30:267
13187552470,0sleep013-21ksoftirqd/023:50:160
11007012460,0sleep50-21swapper/520:15:145
1064335994343,0cyclictest0-21swapper/523:43:375
1064335994242,0cyclictest451rcuc/500:22:145
1064321994138,3cyclictest0-21swapper/122:17:101
1064337993535,0cyclictest0-21swapper/623:44:106
1064337993535,0cyclictest0-21swapper/622:25:016
1064323993535,0cyclictest0-21swapper/223:45:272
1064327993434,0cyclictest0-21swapper/321:47:233
1064321993231,1cyclictest1131209-21diskmemload00:38:591
1064335993131,0cyclictest0-21swapper/523:32:015
106432799310,30cyclictest1264049-21fschecks_count23:05:143
106432799310,30cyclictest1264049-21fschecks_count23:05:133
1064323993129,1cyclictest1228631-21systemd-run22:35:002
106432199310,31cyclictest1131209-21diskmemload22:23:351
106434199300,30cyclictest76-21kcompactd021:40:377
106434199300,30cyclictest0-21swapper/700:09:427
106434199300,2cyclictest1081930-21sh19:40:017
106434199300,29cyclictest1147625-21/usr/sbin/munin21:25:127
106434199300,28cyclictest0-21swapper/723:04:517
1064337993027,2cyclictest320-21systemd-journal23:59:596
106433799300,30cyclictest0-21swapper/600:37:256
106433799300,29cyclictest1239635-21df_inode22:45:136
1064335993028,1cyclictest1119607-21sh20:50:005
106432799300,29cyclictest1152954-21idleruntime-cro21:30:013
106432799300,1cyclictest11583212sleep321:34:153
1064323993028,1cyclictest1213553-21expr22:20:142
106432399300,29cyclictest1240154-21memory22:45:172
1064321993028,1cyclictest320-21systemd-journal20:39:591
106432199300,29cyclictest320-21systemd-journal20:59:591
106432199300,29cyclictest320-21systemd-journal20:59:591
106431699300,29cyclictest1287150-21munin-run23:25:010
1064341992929,0cyclictest0-21swapper/723:33:127
106434199290,29cyclictest1131209-21diskmemload23:39:507
106434199290,29cyclictest1131209-21diskmemload23:29:037
106434199290,29cyclictest0-21swapper/722:51:327
106434199290,29cyclictest0-21swapper/722:30:547
106434199290,29cyclictest0-21swapper/722:26:467
106434199290,29cyclictest0-21swapper/721:24:317
106434199290,29cyclictest0-21swapper/700:39:137
106434199290,29cyclictest0-21swapper/700:24:557
106434199290,28cyclictest1131209-21diskmemload23:05:227
106434199290,28cyclictest1131209-21diskmemload23:05:227
106434199290,28cyclictest1131209-21diskmemload21:15:027
106434199290,1cyclictest1131209-21diskmemload23:17:507
106434199290,1cyclictest0-21swapper/719:55:007
106434199290,1cyclictest0-21swapper/700:10:167
1064337992928,1cyclictest0-21swapper/622:10:246
1064337992927,1cyclictest1228593-21apt22:35:006
106433799290,29cyclictest0-21swapper/623:45:016
106433799290,1cyclictest1131209-21diskmemload23:08:426
106433799290,1cyclictest1131209-21diskmemload23:08:426
106433799290,1cyclictest1131209-21diskmemload00:18:206
106433799290,1cyclictest0-21swapper/622:42:446
106433799290,1cyclictest0-21swapper/622:15:136
106433799290,1cyclictest0-21swapper/621:55:006
106433599290,29cyclictest1228604-21munin-run22:35:005
106433599290,29cyclictest1131209-21diskmemload22:47:075
106433599290,28cyclictest0-21swapper/523:21:295
106433599290,28cyclictest0-21swapper/521:45:545
106433599290,28cyclictest0-21swapper/519:50:005
106433599290,28cyclictest0-21swapper/500:30:275
106433599290,1cyclictest0-21swapper/522:02:045
1064331992928,1cyclictest0-21swapper/422:30:004
106433199290,28cyclictest1131209-21diskmemload22:21:334
106433199290,28cyclictest0-21swapper/421:11:394
106433199290,1cyclictest0-21swapper/423:10:004
106433199290,1cyclictest0-21swapper/423:10:004
1064327992928,1cyclictest1195036-21apt-get22:05:133
106432799290,29cyclictest1287683-21apt-get23:25:103
106432799290,29cyclictest0-21swapper/322:32:573
106432799290,29cyclictest0-21swapper/322:18:433
106432799290,29cyclictest0-21swapper/322:12:143
106432799290,29cyclictest0-21swapper/321:50:513
106432799290,29cyclictest0-21swapper/321:37:203
106432799290,29cyclictest0-21swapper/321:11:563
106432799290,29cyclictest0-21swapper/300:23:073
106432799290,29cyclictest0-21swapper/300:14:553
106432799290,28cyclictest1306924-21memory23:40:203
106432799290,1cyclictest1184794-21sensors_fan21:55:203
106432799290,0cyclictest1131209-21diskmemload22:23:573
106432799290,0cyclictest1131209-21diskmemload00:35:523
106432799290,0cyclictest0-21swapper/322:47:003
1064323992927,1cyclictest1081946-21munin-run19:40:012
106432399290,29cyclictest0-21swapper/222:14:392
106432399290,29cyclictest0-21swapper/221:57:222
106432399290,29cyclictest0-21swapper/221:48:032
106432399290,29cyclictest0-21swapper/221:42:102
106432399290,28cyclictest1131209-21diskmemload00:15:162
106432399290,1cyclictest63850irq/124-eno122:18:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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