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2021-09-28 - 09:55

Intel(R) Atom(TM) CPU E3845 @ 1.91GHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
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 100 highest latencies:
System rackbslot6.osadl.org (updated Wed Sep 01, 2021 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2230821670,5sleep32524999cyclictest11:28:483
2850021630,3sleep32524999cyclictest12:40:323
873911080,4ptp4l401ktimersoftd/309:23:543
87391730,1ptp4l401ktimersoftd/312:57:033
261382670,2sleep00-21swapper/013:42:010
87391650,9ptp4l401ktimersoftd/311:32:033
87391630,1ptp4l401ktimersoftd/309:31:083
70352630,2sleep10-21swapper/113:23:101
87391600,1ptp4l401ktimersoftd/314:13:433
25248995817,3cyclictest33-21ksoftirqd/211:26:132
302822560,4sleep3401ktimersoftd/313:14:213
246842564,39sleep00-21swapper/009:21:480
57492550,2sleep20-21swapper/211:45:052
57492550,2sleep20-21swapper/211:45:052
313032550,2sleep10-21swapper/112:41:541
192022550,2sleep20-21swapper/214:08:052
236202540,2sleep00-21swapper/013:06:230
214352530,3sleep00-21swapper/013:37:270
25248995037,6cyclictest33-21ksoftirqd/210:05:542
25248995037,6cyclictest33-21ksoftirqd/210:05:542
87391480,1ptp4l401ktimersoftd/312:52:183
2524899480,4cyclictest18397-21diskmemload13:41:122
87391470,2ptp4l14664-21kworker/3:113:57:503
2524899466,7cyclictest33-21ksoftirqd/212:16:072
25248994627,8cyclictest33-21ksoftirqd/214:31:162
25248994627,8cyclictest33-21ksoftirqd/214:31:162
2524899458,3cyclictest33-21ksoftirqd/212:21:182
87391440,2ptp4l14664-21kworker/3:112:09:283
25248994425,4cyclictest33-21ksoftirqd/212:40:572
2524699442,8cyclictest849-21runrttasks12:25:590
25248994320,4cyclictest33-21ksoftirqd/212:08:032
87391420,1ptp4l401ktimersoftd/314:25:233
87391420,0ptp4l401ktimersoftd/313:28:353
25248994226,3cyclictest33-21ksoftirqd/213:51:112
25248994220,4cyclictest33-21ksoftirqd/214:29:362
2524899418,4cyclictest33-21ksoftirqd/209:36:182
2524899418,3cyclictest33-21ksoftirqd/213:31:172
25248994120,4cyclictest33-21ksoftirqd/214:10:582
25248994119,4cyclictest33-21ksoftirqd/214:51:342
25248994119,4cyclictest33-21ksoftirqd/214:45:472
25248994119,4cyclictest33-21ksoftirqd/214:36:042
25248994119,4cyclictest33-21ksoftirqd/212:37:512
25248994119,4cyclictest33-21ksoftirqd/209:26:082
25248994118,4cyclictest33-21ksoftirqd/213:29:562
25248994118,4cyclictest33-21ksoftirqd/210:21:092
25248994117,4cyclictest33-21ksoftirqd/211:56:112
87391400,1ptp4l401ktimersoftd/312:02:283
87391400,1ptp4l401ktimersoftd/310:41:213
25248994029,3cyclictest33-21ksoftirqd/214:04:522
25248994018,4cyclictest33-21ksoftirqd/211:36:012
87391390,1ptp4l401ktimersoftd/313:44:283
87391390,1ptp4l401ktimersoftd/313:37:183
2524899397,4cyclictest33-21ksoftirqd/210:01:242
25248993918,4cyclictest33-21ksoftirqd/212:50:122
25248993918,12cyclictest33-21ksoftirqd/211:06:002
2524899391,7cyclictest33-21ksoftirqd/212:00:592
25248993916,4cyclictest33-21ksoftirqd/213:20:592
25248993916,4cyclictest33-21ksoftirqd/211:48:482
25248993910,7cyclictest33-21ksoftirqd/213:11:052
2472823918,11sleep125-21ksoftirqd/109:22:211
244442393,21sleep222840-21/usr/sbin/munin09:21:212
87391380,2ptp4l14664-21kworker/3:114:06:513
87391380,1ptp4l401ktimersoftd/313:54:353
87391380,1ptp4l401ktimersoftd/313:34:143
87391380,1ptp4l401ktimersoftd/312:28:473
2524899387,4cyclictest33-21ksoftirqd/212:11:072
2524899386,3cyclictest33-21ksoftirqd/209:56:062
25248993828,3cyclictest33-21ksoftirqd/214:00:472
25248993820,4cyclictest33-21ksoftirqd/211:10:592
2524899381,9cyclictest11610-21apt-get11:51:002
25248993818,9cyclictest33-21ksoftirqd/210:30:412
25248993816,4cyclictest33-21ksoftirqd/214:19:212
25248993816,3cyclictest33-21ksoftirqd/211:00:592
25248993815,4cyclictest33-21ksoftirqd/212:26:182
25248993812,6cyclictest33-21ksoftirqd/211:33:012
25248993810,6cyclictest33-21ksoftirqd/210:36:172
87391370,1ptp4l401ktimersoftd/313:18:383
87391370,1ptp4l401ktimersoftd/313:08:503
87391370,1ptp4l401ktimersoftd/312:48:363
87391370,1ptp4l401ktimersoftd/312:31:293
87391370,1ptp4l401ktimersoftd/311:57:403
87391370,1ptp4l401ktimersoftd/311:45:533
87391370,15ptp4l401ktimersoftd/310:52:343
87391370,0ptp4l401ktimersoftd/314:48:263
2524899376,4cyclictest33-21ksoftirqd/209:46:152
2524899375,3cyclictest33-21ksoftirqd/213:06:052
2524899375,3cyclictest121rcu_preempt13:36:062
25248993725,3cyclictest33-21ksoftirqd/210:11:152
2524899371,6cyclictest33-21ksoftirqd/213:46:022
25248993713,4cyclictest33-21ksoftirqd/210:41:162
25248993710,6cyclictest33-21ksoftirqd/214:46:552
25248993710,10cyclictest33-21ksoftirqd/212:31:092
2524899370,7cyclictest33-21ksoftirqd/211:21:042
2524899370,7cyclictest33-21ksoftirqd/210:56:112
25246993713,13cyclictest26654-21ssh13:11:010
87391360,2ptp4l14664-21kworker/3:111:51:283
87391360,1ptp4l401ktimersoftd/314:29:183
87391360,1ptp4l401ktimersoftd/314:19:323
87391360,1ptp4l401ktimersoftd/312:23:473
87391360,1ptp4l401ktimersoftd/312:15:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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