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2026-04-09 - 19:26
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the highest latencies:
System rackcslot2.osadl.org (updated Thu Apr 09, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3193427461,9sleep00-21swapper/007:06:370
3180426755,8sleep10-21swapper/107:05:151
32364994210,31cyclictest20404-21ssh11:30:390
32364993910,14cyclictest0-21swapper/010:03:140
32364993815,10cyclictest91rcu_preempt12:21:550
32364993810,27cyclictest0-21swapper/010:09:280
32364993810,25cyclictest0-21swapper/008:09:240
32364993810,23cyclictest0-21swapper/011:19:240
32364993810,22cyclictest0-21swapper/008:06:000
32364993810,20cyclictest0-21swapper/011:25:230
32364993710,26cyclictest13886-21diskmemload10:09:100
32364993710,26cyclictest0-21swapper/011:11:070
32364993710,26cyclictest0-21swapper/009:54:180
32364993710,26cyclictest0-21swapper/009:31:350
32364993710,26cyclictest0-21swapper/009:06:500
32364993710,26cyclictest0-21swapper/008:29:290
32364993710,24cyclictest0-21swapper/010:43:190
32364993710,23cyclictest0-21swapper/010:54:150
32364993710,23cyclictest0-21swapper/010:54:150
32364993710,22cyclictest0-21swapper/008:18:080
3236499361,10cyclictest29334-21apache_volume10:59:250
32364993610,9cyclictest0-21swapper/012:18:020
32364993610,25cyclictest0-21swapper/010:44:340
32364993610,25cyclictest0-21swapper/009:09:250
32364993610,25cyclictest0-21swapper/007:51:140
32364993610,24cyclictest0-21swapper/012:05:390
32364993610,24cyclictest0-21swapper/008:01:190
32364993610,23cyclictest0-21swapper/012:25:410
32364993610,23cyclictest0-21swapper/009:52:230
32364993610,23cyclictest0-21swapper/009:19:240
32364993610,10cyclictest0-21swapper/010:22:160
32364993516,18cyclictest0-21swapper/012:38:270
32364993510,4cyclictest0-21swapper/011:05:400
32364993510,24cyclictest0-21swapper/010:33:590
32364993510,24cyclictest0-21swapper/008:59:270
32364993510,22cyclictest23737-21ssh10:50:200
32364993510,22cyclictest0-21swapper/011:53:120
32364993510,22cyclictest0-21swapper/009:44:300
32364993510,20cyclictest0-21swapper/012:32:240
32364993416,18cyclictest0-21swapper/010:34:340
32364993410,24cyclictest0-21swapper/009:43:320
32364993410,23cyclictest0-21swapper/007:55:070
32364993410,23cyclictest0-21swapper/007:44:250
32364993410,23cyclictest0-21swapper/007:39:280
32364993410,22cyclictest0-21swapper/009:14:160
3236499340,1cyclictest30846-21ssh11:45:040
32364993314,18cyclictest0-21swapper/009:28:100
32364993310,22cyclictest0-21swapper/012:10:240
32364993310,22cyclictest0-21swapper/011:39:250
32364993310,22cyclictest0-21swapper/007:16:270
32364993310,20cyclictest0-21swapper/010:24:330
32364993310,18cyclictest0-21swapper/008:29:040
32365993232,0cyclictest0-21swapper/107:30:321
32364993210,20cyclictest0-21swapper/008:19:260
32364993210,19cyclictest0-21swapper/009:37:360
3236499320,3cyclictest8013-21fschecks_time11:59:240
32365993110,3cyclictest28469-21kworker/u4:210:42:521
32364993114,14cyclictest0-21swapper/011:55:260
32364993110,9cyclictest0-21swapper/008:40:500
32364993110,15cyclictest0-21swapper/008:44:320
32365993030,0cyclictest0-21swapper/111:09:591
32364993019,11cyclictest0-21swapper/011:34:270
3218423027,1sleep10-21swapper/107:09:131
32364992910,6cyclictest0-21swapper/007:34:310
32364992910,4cyclictest0-21swapper/011:18:070
32364992910,19cyclictest0-21swapper/008:35:440
3236499290,28cyclictest6747-21cut07:24:290
32364992810,18cyclictest0-21swapper/008:55:420
3236499280,27cyclictest0-21swapper/010:16:290
32365992727,0cyclictest0-21swapper/111:35:411
32364992716,10cyclictest0-21swapper/008:52:060
3236599262,24cyclictest0-21swapper/111:55:591
32365992617,3cyclictest9884-21apache209:22:421
3236599261,22cyclictest11953-21latency11:19:261
32365992517,6cyclictest9860-21apache212:23:041
32365992510,9cyclictest0-21swapper/112:30:001
32365992418,4cyclictest231ktimersoftd/111:05:271
32365992410,7cyclictest28290-21ssh09:28:021
32364992410,14cyclictest0-21swapper/007:19:310
3236599232,20cyclictest10841-21kworker/1:007:19:301
3236599231,13cyclictest0-21swapper/108:04:331
32365992310,7cyclictest0-21swapper/111:29:311
32365992310,7cyclictest0-21swapper/109:09:241
32365992310,4cyclictest0-21swapper/112:07:441
3236599228,9cyclictest9920-21kworker/1:209:59:541
32365992210,6cyclictest0-21swapper/108:09:521
32364992210,7cyclictest0-21swapper/007:09:130
32364992210,10cyclictest0-21swapper/007:34:050
3236599217,13cyclictest0-21swapper/107:49:241
32365992121,0cyclictest0-21swapper/110:06:291
32365992120,1cyclictest9884-21apache209:35:481
32365992119,1cyclictest0-21swapper/110:59:281
32365992115,5cyclictest231ktimersoftd/112:18:371
32365992115,3cyclictest0-21swapper/108:57:081
32365992112,5cyclictest24260-1kworker/u5:210:30:141
32365992111,6cyclictest100150irq/106-eth1-rx08:19:091
32365992110,9cyclictest0-21swapper/110:23:341
32365992110,7cyclictest0-21swapper/110:34:301
32365992110,5cyclictest0-21swapper/111:25:191
32365992110,3cyclictest0-21swapper/109:39:201
32365992110,1cyclictest100150irq/106-eth1-rx08:39:221
3236599202,9cyclictest0-21swapper/107:59:241
32365992020,0cyclictest9860-21apache211:54:111
32365992015,2cyclictest0-21swapper/110:54:271
32365992015,2cyclictest0-21swapper/110:54:271
32365992014,4cyclictest23334-1kworker/u5:009:30:531
32365992011,5cyclictest9860-21apache210:16:041
3236599201,10cyclictest0-21swapper/108:49:301
32365992010,4cyclictest0-21swapper/110:10:151
32365992010,4cyclictest0-21swapper/109:16:421
32365992010,3cyclictest0-21swapper/108:29:321
32365992010,2cyclictest0-21swapper/110:50:531
32365992010,2cyclictest0-21swapper/109:52:561
3236599196,7cyclictest636-21nscd11:48:171
3236599195,12cyclictest0-21swapper/107:44:251
3236599194,9cyclictest9806-21sh09:46:411
3236599194,8cyclictest0-21swapper/110:24:321
3236599193,11cyclictest0-21swapper/108:34:331
3236599191,8cyclictest0-21swapper/112:34:231
32365991911,5cyclictest100150irq/106-eth1-rx07:40:141
3236599191,13cyclictest0-21swapper/108:45:031
32365991910,5cyclictest0-21swapper/109:54:241
32365991910,4cyclictest0-21swapper/111:39:361
3236599190,15cyclictest21639-21kworker/1:012:28:541
3236599190,15cyclictest0-21swapper/111:19:041
3236599190,10cyclictest0-21swapper/112:04:001
32365991816,1cyclictest19746-21ls10:44:331
32365991810,5cyclictest0-21swapper/107:19:081
3236599175,7cyclictest0-21swapper/108:59:291
3236599175,4cyclictest14940-21/usr/sbin/munin12:09:281
3236599174,7cyclictest0-21swapper/107:34:281
3236599173,7cyclictest0-21swapper/108:19:291
32365991710,4cyclictest0-21swapper/108:24:241
3236599153,4cyclictest17829-21/usr/sbin/munin07:54:251
3236599152,8cyclictest0-21swapper/109:04:261
3236599152,11cyclictest0-21swapper/107:24:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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