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2022-12-02 - 16:48

x86 Intel N455 @1660 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #3, 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 376 highest latencies:
System rack3slot6 (updated Fri Dec 02, 2022 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206189911685,16cyclictest14-21ksoftirqd/007:35:140
206189911685,16cyclictest14-21ksoftirqd/007:35:140
206189911585,17cyclictest14-21ksoftirqd/008:25:140
206189911483,19cyclictest14-21ksoftirqd/009:55:190
206189911283,16cyclictest14-21ksoftirqd/007:50:130
206189911281,17cyclictest14-21ksoftirqd/008:45:130
206189911180,19cyclictest14-21ksoftirqd/010:45:120
206189911179,21cyclictest14-21ksoftirqd/007:10:130
206189911179,20cyclictest14-21ksoftirqd/009:35:140
206189911081,17cyclictest14-21ksoftirqd/011:15:150
206189911078,18cyclictest14-21ksoftirqd/009:10:110
206189911077,20cyclictest14-21ksoftirqd/008:30:160
206189910976,20cyclictest14-21ksoftirqd/008:15:150
206189910880,19cyclictest14-21ksoftirqd/010:30:140
206189910878,20cyclictest14-21ksoftirqd/009:15:140
206189910878,15cyclictest14-21ksoftirqd/010:55:150
206189910877,20cyclictest14-21ksoftirqd/012:25:170
206189910877,20cyclictest14-21ksoftirqd/008:00:180
206189910877,18cyclictest14-21ksoftirqd/012:20:150
206189910877,18cyclictest14-21ksoftirqd/012:20:150
206189910876,22cyclictest14-21ksoftirqd/008:40:140
206189910876,20cyclictest14-21ksoftirqd/011:30:170
206189910776,21cyclictest27417-21taskset09:05:120
206189910776,18cyclictest14-21ksoftirqd/012:35:130
206189910682,14cyclictest14-21ksoftirqd/008:55:140
206189910677,19cyclictest14-21ksoftirqd/011:50:160
206189910677,18cyclictest14-21ksoftirqd/010:00:210
206189910675,20cyclictest14-21ksoftirqd/011:10:140
206189910673,20cyclictest14-21ksoftirqd/009:20:160
206189910578,19cyclictest14-21ksoftirqd/011:45:170
206189910577,19cyclictest14-21ksoftirqd/008:50:130
206189910577,15cyclictest14-21ksoftirqd/008:10:130
206189910476,18cyclictest14-21ksoftirqd/012:05:190
206189910475,19cyclictest14-21ksoftirqd/008:20:150
206189910473,20cyclictest14-21ksoftirqd/009:25:130
206189910473,20cyclictest14-21ksoftirqd/007:20:230
206189910375,18cyclictest14-21ksoftirqd/010:50:150
206189910374,17cyclictest14-21ksoftirqd/009:30:150
206189910372,18cyclictest14-21ksoftirqd/011:00:150
206189910271,19cyclictest14-21ksoftirqd/011:40:200
206259910053,29cyclictest26-21ksoftirqd/109:05:141
206189910075,16cyclictest14-21ksoftirqd/011:05:230
206189910042,51cyclictest7718-21apt-get08:05:150
20618999667,18cyclictest14-21ksoftirqd/012:15:170
2012829423,26sleep00-21swapper/007:06:360
20618999313,64cyclictest0-21swapper/007:45:120
20618999055,20cyclictest14-21ksoftirqd/010:10:130
2061899894,55cyclictest19672-21head11:55:200
2061899888,50cyclictest0-21swapper/009:00:180
2061899883,57cyclictest25390-21ntp_kernel_pll_10:35:270
1871428730,46sleep10-21swapper/107:05:021
2061899865,52cyclictest31708-21/usr/sbin/munin07:40:110
20618998655,18cyclictest0-21swapper/009:40:140
20618998644,33cyclictest14-21ksoftirqd/010:25:160
20618998559,17cyclictest14-21ksoftirqd/011:25:220
2062599829,55cyclictest0-21swapper/107:40:251
2062599827,21cyclictest0-21swapper/112:10:251
2061899823,53cyclictest15130-21sshd10:05:190
20618998210,61cyclictest0-21swapper/010:15:150
2061899814,69cyclictest4439-21apt-get07:55:130
2062599808,53cyclictest0-21swapper/111:05:241
2062599808,53cyclictest0-21swapper/110:20:131
20618998010,53cyclictest0-21swapper/012:30:160
2062599797,24cyclictest26-21ksoftirqd/109:55:011
2061899793,69cyclictest22816-21/usr/sbin/munin07:15:230
2061899793,69cyclictest22816-21/usr/sbin/munin07:15:230
20618997936,26cyclictest14-21ksoftirqd/007:30:130
2062599788,25cyclictest26-21ksoftirqd/110:30:011
2062599787,54cyclictest0-21swapper/109:15:151
20618997714,53cyclictest0-21swapper/009:50:180
2061899769,57cyclictest0-21swapper/012:00:230
20618997611,53cyclictest0-21swapper/009:45:130
20618997610,54cyclictest0-21swapper/008:35:140
20625997527,16cyclictest26-21ksoftirqd/111:25:001
20618997511,53cyclictest0-21swapper/007:25:140
2062599747,25cyclictest0-21swapper/111:45:181
20618997414,49cyclictest0-21swapper/010:40:170
2062599739,46cyclictest0-21swapper/108:15:121
2061899723,62cyclictest25277-21ntp_states12:10:410
20618997210,52cyclictest0-21swapper/010:20:150
20625997146,9cyclictest26-21ksoftirqd/111:10:061
20625997145,11cyclictest26-21ksoftirqd/111:59:441
20625997129,23cyclictest26-21ksoftirqd/111:38:321
20625997129,22cyclictest26-21ksoftirqd/110:09:461
20625997046,10cyclictest26-21ksoftirqd/108:04:481
20625997014,17cyclictest31009-21munin-run12:30:011
2062599696,25cyclictest26-21ksoftirqd/107:50:001
20625996946,9cyclictest26-21ksoftirqd/110:34:391
20625996946,9cyclictest26-21ksoftirqd/109:13:151
20625996944,10cyclictest26-21ksoftirqd/108:29:211
20625996922,15cyclictest26-21ksoftirqd/107:38:211
20625996922,15cyclictest26-21ksoftirqd/107:38:211
20618996910,49cyclictest0-21swapper/011:35:170
2062599678,24cyclictest26-21ksoftirqd/107:20:451
2062599676,14cyclictest26-21ksoftirqd/110:50:001
20625996728,21cyclictest26-21ksoftirqd/107:16:561
20625996728,21cyclictest26-21ksoftirqd/107:16:561
20625996728,13cyclictest26-21ksoftirqd/107:55:521
20625996727,23cyclictest26-21ksoftirqd/111:50:571
20625996727,13cyclictest26-21ksoftirqd/108:31:411
20625996720,30cyclictest26-21ksoftirqd/110:15:121
20625996719,15cyclictest26-21ksoftirqd/108:50:001
2062599668,26cyclictest26-21ksoftirqd/111:30:141
2062599666,25cyclictest26-21ksoftirqd/109:40:341
20625996627,13cyclictest26-21ksoftirqd/107:31:381
20625996612,18cyclictest26155-21php7.310:39:001
20625996611,15cyclictest151rcu_preempt12:25:011
20625996611,15cyclictest151rcu_preempt12:25:011
2061899668,48cyclictest7695-21apt-get11:20:230
2062599657,25cyclictest26-21ksoftirqd/108:20:221
2062599653,25cyclictest26-21ksoftirqd/108:50:261
20625996529,22cyclictest26-21ksoftirqd/109:01:121
20625996528,13cyclictest26-21ksoftirqd/107:51:171
20625996527,12cyclictest26-21ksoftirqd/110:44:481
2062599652,14cyclictest26-21ksoftirqd/110:05:001
2062599647,24cyclictest26-21ksoftirqd/112:35:361
20625996428,12cyclictest26-21ksoftirqd/109:45:041
20625996414,8cyclictest151rcu_preempt09:40:011
2062599635,24cyclictest26-21ksoftirqd/110:10:171
20625996328,13cyclictest26-21ksoftirqd/112:17:581
20625996328,13cyclictest26-21ksoftirqd/111:17:401
20625996326,22cyclictest26-21ksoftirqd/109:28:051
20625996326,12cyclictest26-21ksoftirqd/108:55:571
20625996324,22cyclictest26-21ksoftirqd/107:10:241
20625996314,16cyclictest151rcu_preempt11:25:031
20625996313,29cyclictest0-21swapper/110:55:121
20625996312,28cyclictest0-21swapper/108:10:121
20625996229,13cyclictest26-21ksoftirqd/111:02:471
20625996226,23cyclictest26-21ksoftirqd/109:20:031
20625996225,23cyclictest26-21ksoftirqd/111:41:501
20625996224,23cyclictest26-21ksoftirqd/112:05:291
20625996221,22cyclictest26-21ksoftirqd/112:31:091
20625996216,18cyclictest9097-21php7.308:09:001
20625996212,17cyclictest550-21runrttasks12:02:181
20625996126,22cyclictest26-21ksoftirqd/108:40:131
20625996125,13cyclictest26-21ksoftirqd/110:52:271
20625996112,23cyclictest26-21ksoftirqd/109:57:201
2062599609,33cyclictest0-21swapper/108:35:121
2062599605,23cyclictest26-21ksoftirqd/109:30:301
2062599597,24cyclictest26-21ksoftirqd/107:25:271
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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