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2022-06-30 - 20:41

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 Thu Jun 30, 2022 00:43:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1996021630,6sleep62746299cyclictest21:23:4312
280121370,5sleep62746299cyclictest21:29:5212
267562131103,23sleep30-21swapper/319:15:049
26635212490,29sleep90-21swapper/919:13:1715
817521170,1sleep150-21swapper/1523:29:357
26965211393,15sleep40-21swapper/419:17:1310
2818921080,6sleep12745599cyclictest23:45:401
1671921060,1sleep110-21swapper/1122:46:273
777721040,1sleep50-21swapper/521:39:1311
1549421020,7sleep112746899cyclictest22:41:553
1408921020,0sleep70-21swapper/721:57:2613
26699210175,21sleep150-21swapper/1519:14:117
2060121000,2sleep100-21swapper/1023:44:292
303392990,1sleep40-21swapper/400:12:1210
2690829981,13sleep60-21swapper/619:16:2712
256212990,6sleep92746699cyclictest21:54:3215
201302990,1sleep90-21swapper/921:36:5315
50642980,0sleep90-21swapper/922:36:1615
21472980,6sleep32745799cyclictest21:42:409
92432970,0sleep90-21swapper/922:41:0415
280132960,1sleep90-21swapper/900:36:2215
221672960,1sleep70-21swapper/721:24:0013
255972950,1sleep60-21swapper/622:07:3512
256052940,0sleep90-21swapper/900:27:1615
184772920,1sleep100-21swapper/1021:40:382
2676629183,4sleep80-21swapper/819:15:0914
2692728976,9sleep70-21swapper/719:16:4413
2676828875,8sleep100-21swapper/1019:15:112
131682880,1sleep10971ktimersoftd/1021:48:082
4872870,1sleep882-21ksoftirqd/823:01:5514
2677628775,8sleep10-21swapper/119:15:181
175582870,0sleep70-21swapper/700:14:4013
2681228672,4sleep20-21swapper/219:15:518
112052860,5sleep52746099cyclictest00:18:3911
2684328572,7sleep110-21swapper/1119:16:163
2679828472,8sleep50-21swapper/519:15:3811
2671528372,7sleep140-21swapper/1419:14:276
2669728375,4sleep130-21swapper/1319:14:095
2695028272,6sleep120-21swapper/1219:17:054
272912810,0sleep00-21swapper/022:07:450
2671828072,4sleep00-21swapper/019:14:290
236642570,0sleep150-21swapper/1523:04:597
299692500,21sleep297850irq/41-eth0-TxR23:18:568
299692500,21sleep297850irq/41-eth0-TxR23:18:568
227712470,6sleep62746299cyclictest21:45:2312
27459994514,24cyclictest29231-21sshd22:35:0510
27459994416,22cyclictest0-21swapper/422:42:0810
27459994414,23cyclictest29083-21systemd-cgroups22:03:3410
27459994413,21cyclictest0-21swapper/423:58:3710
27459994412,25cyclictest24018-21polkitd23:51:1610
27459994412,20cyclictest28610-2110-uname23:05:4410
27459994410,25cyclictest20381-21sshd00:06:4610
11322440,1sleep30-21swapper/323:28:359
51162430,2sleep50-21swapper/522:22:3311
2745999438,25cyclictest0-21swapper/421:24:1910
2745999432,30cyclictest0-21swapper/400:24:0410
27459994314,24cyclictest0-21swapper/421:17:5510
27459994313,22cyclictest11435-2110-uname23:34:2310
27459994312,21cyclictest10061-21grep21:47:4410
27459994310,24cyclictest0-21swapper/423:39:1710
2745999428,28cyclictest0-21swapper/423:17:1710
2745999428,28cyclictest0-21swapper/423:17:1710
27459994217,19cyclictest376-21md125_raid122:43:0610
27459994213,20cyclictest0-21swapper/423:07:4410
27459994211,25cyclictest0-21swapper/423:43:5210
27459994210,30cyclictest0-21swapper/400:35:1310
27459994210,26cyclictest0-21swapper/422:48:2810
2745999419,26cyclictest0-21swapper/423:22:5710
2745999419,26cyclictest0-21swapper/423:22:5710
2745999416,33cyclictest0-21swapper/423:52:3910
2745999413,28cyclictest0-21swapper/422:56:2310
27459994116,17cyclictest310861sshd00:45:3810
27459994114,18cyclictest0-21swapper/422:00:0410
27459994113,22cyclictest0-21swapper/423:01:5410
27459994111,23cyclictest0-21swapper/422:15:4110
27459994111,21cyclictest0-21swapper/421:53:1510
27459994023,15cyclictest0-21swapper/422:23:1310
27459994015,20cyclictest87651sshd00:29:0310
27459994012,20cyclictest0-21swapper/422:09:0610
27459994012,19cyclictest19524-21sshd21:44:5510
27459994011,28cyclictest0-21swapper/423:31:0010
27459994011,27cyclictest0-21swapper/422:17:1810
250352400,1sleep140-21swapper/1421:50:046
2745999399,24cyclictest0-21swapper/422:32:0110
2745999398,25cyclictest0-21swapper/423:14:2710
2745999398,25cyclictest0-21swapper/423:14:2710
27459993918,19cyclictest0-21swapper/421:12:4110
27459993914,19cyclictest26091-21sshd21:32:5910
2745999391,35cyclictest0-21swapper/400:18:2710
27459993912,25cyclictest0-21swapper/420:22:4510
90552380,4sleep8811ktimersoftd/823:02:4314
313002380,1sleep120-21swapper/1223:46:084
2745999389,23cyclictest0-21swapper/400:37:3110
116652380,0sleep70-21swapper/721:18:3913
27459993722,13cyclictest21067-21sshd21:27:4610
27459993715,20cyclictest0-21swapper/420:37:3410
27459993713,18cyclictest0-21swapper/421:41:2710
27459993710,18cyclictest0-21swapper/400:12:3010
27459993618,16cyclictest2794-21basename20:42:3310
27459993615,19cyclictest0-21swapper/420:22:1610
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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