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2023-05-31 - 18:13

x86 Intel Atom D2700 @2130 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #1, 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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6.osadl.org (updated Wed May 31, 2023 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2911210,0irq_work/2311rcuc/210:23:002
2911180,0irq_work/2311rcuc/207:59:362
2911160,0irq_work/2311rcuc/210:50:392
3611150,0irq_work/3381rcuc/307:59:123
2911150,0irq_work/2311rcuc/209:13:512
3611140,0irq_work/3381rcuc/309:34:073
2911140,0irq_work/2311rcuc/208:41:322
2911130,0irq_work/2311rcuc/211:17:372
2911130,0irq_work/2311rcuc/210:58:432
2911130,0irq_work/2311rcuc/207:10:492
2911120,0irq_work/2311rcuc/208:36:562
2911120,0irq_work/2311rcuc/208:32:502
2911100,0irq_work/2311rcuc/211:37:052
2911070,0irq_work/2311rcuc/210:16:322
2911070,0irq_work/2311rcuc/209:07:302
2911060,0irq_work/2311rcuc/210:24:112
2911050,0irq_work/2311rcuc/209:42:522
2911040,0irq_work/2311rcuc/209:31:342
2911040,0irq_work/2311rcuc/208:47:502
3611030,0irq_work/3381rcuc/308:34:083
2911030,0irq_work/2311rcuc/212:03:422
2911030,0irq_work/2311rcuc/206:59:012
3611020,0irq_work/3381rcuc/310:49:003
2911020,0irq_work/2311rcuc/210:47:542
2911020,0irq_work/2311rcuc/210:42:122
2911020,0irq_work/2311rcuc/209:56:252
2911020,0irq_work/2311rcuc/209:56:252
2911020,0irq_work/2311rcuc/207:35:502
2911010,0irq_work/2311rcuc/212:24:282
2911010,0irq_work/2311rcuc/207:51:542
2911000,0irq_work/2311rcuc/212:07:182
2911000,0irq_work/2311rcuc/207:29:202
361990,0irq_work/3381rcuc/311:19:173
291990,0irq_work/2311rcuc/209:11:062
291990,0irq_work/2311rcuc/208:54:142
291990,0irq_work/2311rcuc/207:21:532
291980,0irq_work/2311rcuc/211:02:402
291980,0irq_work/2311rcuc/207:40:212
361970,0irq_work/3381rcuc/311:12:203
361970,0irq_work/3381rcuc/311:12:203
361970,0irq_work/3381rcuc/308:24:193
291970,0irq_work/2311rcuc/209:28:242
291970,0irq_work/2311rcuc/207:53:542
291970,0irq_work/2311rcuc/207:44:182
291970,0irq_work/2311rcuc/207:44:182
291950,0irq_work/2311rcuc/212:14:132
291950,0irq_work/2311rcuc/212:14:132
291950,0irq_work/2311rcuc/210:13:292
291950,0irq_work/2311rcuc/210:07:352
291950,0irq_work/2311rcuc/209:44:582
291950,0irq_work/2311rcuc/209:19:572
291950,0irq_work/2311rcuc/209:03:272
291950,0irq_work/2311rcuc/208:23:072
291950,0irq_work/2311rcuc/208:12:252
291950,0irq_work/2311rcuc/208:07:432
291950,0irq_work/2311rcuc/207:24:112
291940,0irq_work/2311rcuc/211:28:172
291940,0irq_work/2311rcuc/211:19:592
291940,0irq_work/2311rcuc/211:06:192
291940,0irq_work/2311rcuc/211:06:192
291930,0irq_work/2311rcuc/211:55:242
291930,0irq_work/2311rcuc/211:47:242
291930,0irq_work/2311rcuc/208:24:252
291920,0irq_work/2311rcuc/212:12:162
291920,0irq_work/2311rcuc/210:37:122
291920,0irq_work/2311rcuc/209:52:552
291920,0irq_work/2311rcuc/208:49:022
291920,0irq_work/2311rcuc/208:49:022
291910,0irq_work/2311rcuc/210:32:542
291910,0irq_work/2311rcuc/210:01:592
291910,0irq_work/2311rcuc/210:01:592
291900,0irq_work/2311rcuc/212:18:522
291900,0irq_work/2311rcuc/211:49:572
291900,0irq_work/2311rcuc/211:40:172
291900,0irq_work/2311rcuc/211:31:412
291900,0irq_work/2311rcuc/207:13:592
291890,0irq_work/2311rcuc/209:34:222
291890,0irq_work/2311rcuc/208:17:552
291890,0irq_work/2311rcuc/207:07:432
361880,0irq_work/3381rcuc/312:14:193
361880,0irq_work/3381rcuc/312:14:193
291870,0irq_work/2311rcuc/211:12:162
291870,0irq_work/2311rcuc/211:12:162
361820,0irq_work/3381rcuc/309:09:183
361790,0irq_work/3381rcuc/310:11:443
361770,0irq_work/3381rcuc/311:49:033
361770,0irq_work/3381rcuc/309:23:383
2668399772,0cyclictest210099rtkit-daemon10:33:431
361760,0irq_work/3381rcuc/311:57:513
361750,0irq_work/3381rcuc/310:39:173
361740,0irq_work/3381rcuc/312:18:433
361740,0irq_work/3381rcuc/311:58:443
361740,0irq_work/3381rcuc/311:04:373
361740,0irq_work/3381rcuc/311:04:373
361730,0irq_work/3381rcuc/307:34:263
361720,0irq_work/3381rcuc/312:24:423
361720,0irq_work/3381rcuc/310:27:513
361720,0irq_work/3381rcuc/309:17:063
361710,0irq_work/3381rcuc/308:30:463
361710,0irq_work/3381rcuc/307:39:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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