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2023-01-27 - 14:32

x86 Intel Xeon E5620 @2400 MHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, slot #0
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 -Up99 -i200 -h400 --smi -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackcslot0.osadl.org (updated Fri Jan 27, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2737421860,5sleep0864499cyclictest00:08:510
2737421860,5sleep0864499cyclictest00:08:510
2425121360,0sleep100-21swapper/1021:29:352
233521230,1sleep80-21swapper/800:25:1814
233521230,1sleep80-21swapper/800:25:1814
1662721220,1sleep70-21swapper/721:37:0113
81702121104,13sleep150-21swapper/1519:20:157
1893921210,1sleep100-21swapper/1022:54:072
78662119104,10sleep70-21swapper/719:16:5413
81252118103,10sleep110-21swapper/1119:19:393
80382116103,9sleep120-21swapper/1219:19:074
2704021160,2sleep10-21swapper/121:25:411
79922115103,8sleep50-21swapper/519:18:2811
6638211495,13sleep130-21swapper/1319:15:405
1096821110,1sleep20-21swapper/223:40:318
8153210991,14sleep00-21swapper/019:20:000
960221060,1sleep6651ktimersoftd/623:05:3312
208721060,1sleep130-21swapper/1323:39:225
1523221060,4sleep0864499cyclictest20:45:330
8148210390,9sleep140-21swapper/1419:19:586
671621030,1sleep110-21swapper/1121:23:273
310642970,6sleep2864799cyclictest20:25:328
304802970,0sleep40-21swapper/422:12:4910
134862970,1sleep140-21swapper/1400:47:366
811729681,4sleep30-21swapper/319:19:319
266792960,0sleep130-21swapper/1323:20:395
189182950,1sleep20-21swapper/222:02:378
189182950,1sleep20-21swapper/222:02:378
196842930,1sleep150-21swapper/1523:24:257
154802920,0sleep80-21swapper/821:32:1314
297612900,1sleep130-21swapper/1322:12:425
812328976,9sleep90-21swapper/919:19:3715
170832880,1sleep1017086-21env23:36:552
272212860,5sleep10865899cyclictest21:55:322
272212860,5sleep10865899cyclictest21:55:322
313672850,0sleep130-21swapper/1321:05:335
813328472,8sleep10-21swapper/119:19:451
600028475,4sleep80-21swapper/819:15:3514
311202840,0sleep30-21swapper/322:25:229
800928375,4sleep40-21swapper/419:18:4310
802628272,6sleep20-21swapper/219:18:578
786528168,9sleep60-21swapper/619:16:5312
784928072,4sleep100-21swapper/1019:16:412
260502800,6sleep1864699cyclictest21:46:171
194722800,0sleep70-21swapper/722:15:3213
16772780,0sleep100-21swapper/1000:00:432
74702770,1sleep11866099cyclictest23:40:083
321452700,4sleep397450irq/37-eth0-TxR23:56:039
13542660,0sleep110-21swapper/1123:48:103
321652630,0sleep00-21swapper/023:34:520
99832620,0sleep110-21swapper/1100:38:283
184742620,0sleep20-21swapper/200:15:508
285022570,1sleep120-21swapper/1222:42:064
249332530,2sleep110-21swapper/1100:08:303
249332530,2sleep110-21swapper/1100:08:303
865499501,21cyclictest24022-21gdbus22:49:3313
865499500,21cyclictest1619-21sshd23:43:4513
865499491,22cyclictest6370-21sshd22:56:2513
272972490,0sleep120-21swapper/1223:12:044
866499481,45cyclictest12089-21avahi-daemon22:51:455
866499481,44cyclictest6616-21sshd23:44:315
865499480,21cyclictest0-21swapper/723:28:4313
865499470,22cyclictest3304-2110-uname23:48:2513
866499461,43cyclictest26613-21sshd23:07:535
865499461,21cyclictest3467-21sshd23:04:4213
865499461,21cyclictest0-21swapper/723:13:1113
196932460,1sleep60-21swapper/622:28:0612
866499451,41cyclictest0-21swapper/1323:46:345
866499450,42cyclictest27603-21sshd23:25:345
865499451,21cyclictest1082-21gdbus23:31:3113
865499451,20cyclictest0-21swapper/723:38:2613
865499451,20cyclictest0-21swapper/722:52:5313
866499430,40cyclictest7302-21systemd-cgroups22:56:325
865499431,22cyclictest14277-21sshd23:19:0313
865499430,20cyclictest0-21swapper/723:23:2613
8664994212,27cyclictest2156-21sshd22:18:135
866499421,13cyclictest0-21swapper/1323:16:195
866499420,39cyclictest12089-21avahi-daemon23:31:115
284602420,1sleep100-21swapper/1022:59:282
866499411,37cyclictest0-21swapper/1323:10:565
8664994111,2cyclictest0-21swapper/1322:34:165
866499411,11cyclictest0-21swapper/1323:01:245
866499409,4cyclictest4805-2110-uname22:09:165
866499401,36cyclictest0-21swapper/1322:48:585
8664994012,1cyclictest0-21swapper/1300:07:115
8664994012,1cyclictest0-21swapper/1300:07:115
42502400,2sleep140-21swapper/1400:42:156
306172400,0sleep120-21swapper/1221:22:234
866499396,4cyclictest1696-2110-uname00:17:485
251692390,2sleep10-21swapper/100:23:511
251692390,2sleep10-21swapper/100:23:511
224392390,1sleep120-21swapper/1223:59:094
8664993813,1cyclictest0-21swapper/1322:37:195
8664993813,1cyclictest0-21swapper/1300:13:395
8664993813,1cyclictest0-21swapper/1300:13:395
8664993710,3cyclictest25637-21sshd21:50:335
8664993710,3cyclictest25637-21sshd21:50:335
123642370,1sleep5571ktimersoftd/500:47:2711
866499369,3cyclictest2751-21run-parts00:42:015
8664993611,2cyclictest0-21swapper/1321:30:385
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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