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2022-06-30 - 17:49

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.19.8-rt6 (Profile)

Latency plot of system in rack #4, 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 -Sp99 -i200 -h400 -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 rack4slot0.osadl.org (updated Thu Jun 30, 2022 12:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2683921360,0sleep026765-21sshd09:46:520
41121260,0sleep00-21swapper/012:20:110
124421130,0sleep20-21swapper/209:58:412
2192721110,0sleep00-21swapper/011:10:180
1252921060,2sleep0314999cyclictest10:47:240
143802990,3sleep1231rcuc/110:54:551
305302820,3sleep2315199cyclictest09:47:182
243832760,0sleep30-21swapper/311:21:263
209362740,1sleep220929-21sshd11:57:082
315432720,0sleep20-21swapper/210:56:482
3150997270,1cyclictest4369-21ipmitool08:30:141
263112720,2sleep1315099cyclictest10:12:271
12602720,1sleep21258-21sshd11:44:112
57502710,0sleep00-21swapper/009:30:060
213092710,0sleep00-21swapper/011:31:580
242602690,0sleep00-21swapper/011:57:310
230562690,1sleep0101ktimersoftd/009:24:480
191052680,1sleep00-21swapper/011:06:160
110302680,0sleep20-21swapper/212:14:082
315722670,0sleep00-21swapper/010:31:220
218262670,1sleep221815-21lspci09:42:412
193112670,2sleep1315099cyclictest09:46:011
52762660,0sleep30-21swapper/309:19:053
293792660,5sleep3102550irq/24-eno112:05:203
3149996360,2cyclictest1185-21ipmitool11:15:150
311032630,0sleep30-21swapper/311:07:403
243972630,1sleep2321ktimersoftd/209:17:372
3150996260,1cyclictest12331-21ipmitool07:30:131
132152610,0sleep10-21swapper/110:29:181
3150996058,1cyclictest17998-21ipmitool11:35:151
276526025,28sleep10-21swapper/107:07:421
3149995956,2cyclictest4360-21ipmitool08:30:130
300325725,9sleep20-21swapper/207:10:012
291125526,10sleep00-21swapper/007:09:090
189752540,0sleep00-21swapper/009:53:220
198022530,0sleep20-21swapper/210:48:142
3152995048,1cyclictest25607-21ipmitool11:25:153
3152995048,1cyclictest25607-21ipmitool11:25:153
3150994947,1cyclictest21704-21ipmitool10:30:191
280722480,0sleep30-21swapper/309:28:553
217952460,2sleep3315299cyclictest10:44:523
280432450,0sleep10-21swapper/112:16:001
263224328,9sleep30-21swapper/307:06:403
3151993525,9cyclictest1165-21ipmitool11:15:142
237942320,1sleep123787-21sshd10:04:531
3151993112,1cyclictest16244-21sshd11:30:132
305982300,1sleep2321ktimersoftd/209:32:472
314372270,0sleep30-21swapper/311:36:413
195712270,0sleep019568-21lspci10:55:260
315299269,2cyclictest0-21swapper/312:14:233
315299260,1cyclictest0-21swapper/311:45:113
156002260,2sleep315601-21bash12:18:133
315099240,1cyclictest0-21swapper/109:33:371
314999232,2cyclictest24216-21bash12:12:000
315299224,2cyclictest102550irq/24-eno110:01:593
315299220,4cyclictest0-21swapper/307:33:443
315199222,1cyclictest0-21swapper/207:40:142
315199220,4cyclictest0-21swapper/208:23:252
315099220,4cyclictest0-21swapper/110:45:561
314999223,1cyclictest0-21swapper/008:28:020
175772220,1sleep20-21swapper/210:18:502
315299211,2cyclictest3517-21cp11:55:143
315299210,3cyclictest0-21swapper/310:33:173
315199213,2cyclictest8929-21bash10:21:322
315199210,3cyclictest0-21swapper/210:41:202
315199210,3cyclictest0-21swapper/209:50:452
315199210,2cyclictest22964-21sshd11:53:462
315199210,2cyclictest0-21swapper/208:55:122
315099213,2cyclictest2717-21lspci12:09:351
315099211,2cyclictest15191-21in:imjournal11:30:151
315099210,3cyclictest0-21swapper/108:57:141
314999211,4cyclictest121rcu_preempt07:29:360
3149992110,3cyclictest16365-21sshd11:27:450
3149992110,3cyclictest16365-21sshd11:27:450
314999210,3cyclictest0-21swapper/009:09:450
269372210,0sleep326938-21bash11:50:363
17822210,0sleep10-21swapper/109:29:381
315299202,3cyclictest0-21swapper/311:15:183
315299201,12cyclictest41-21ksoftirqd/312:37:343
315299200,2cyclictest0-21swapper/310:29:263
315299200,2cyclictest0-21swapper/309:56:283
315299200,2cyclictest0-21swapper/308:52:563
315199202,2cyclictest11737-21sshd10:32:472
3151992018,1cyclictest18017-21ipmitool11:35:152
315199200,2cyclictest0-21swapper/210:51:212
315199200,2cyclictest0-21swapper/210:38:512
315199200,2cyclictest0-21swapper/209:06:052
315199200,2cyclictest0-21swapper/207:52:432
315099202,2cyclictest0-21swapper/110:35:271
315099201,1cyclictest0-21swapper/112:32:551
315099201,1cyclictest0-21swapper/112:32:541
315099200,2cyclictest30423-21sshd11:40:131
315099200,2cyclictest13848-21grep09:38:071
314999203,11cyclictest9-21ksoftirqd/010:42:390
314999201,1cyclictest9-21ksoftirqd/009:25:160
314999201,1cyclictest0-21swapper/007:24:330
314999200,2cyclictest0-21swapper/012:26:590
315299194,4cyclictest19986-21munin-plugin-st09:10:003
315299190,4cyclictest0-21swapper/308:38:473
315299190,2cyclictest0-21swapper/307:15:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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