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2025-11-28 - 12:15
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Fri Nov 28, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
375028056,18sleep10-21swapper/119:02:021
216352740,1sleep10-21swapper/122:38:251
489427261,7sleep00-21swapper/019:05:560
259112710,0sleep00-21swapper/022:44:510
287162690,0sleep10-21swapper/122:48:051
214332640,0sleep00-21swapper/022:37:580
202592490,2sleep1515399cyclictest23:22:001
5152993210,2cyclictest0-21swapper/000:22:510
5153992910,4cyclictest0-21swapper/123:57:371
5153992910,0cyclictest0-21swapper/121:26:541
5152992920,6cyclictest29836-21apache222:26:440
515299281,26cyclictest0-21swapper/021:53:260
5152992727,0cyclictest0-21swapper/022:58:460
5153992622,4cyclictest29836-21apache221:09:291
5153992617,5cyclictest5150-21cyclictest19:47:001
5153992610,0cyclictest0-21swapper/123:19:261
515299262,23cyclictest0-21swapper/000:01:410
5153992510,10cyclictest0-21swapper/100:17:441
5152992523,2cyclictest0-21swapper/021:28:160
5153992422,2cyclictest0-21swapper/120:41:231
515399240,17cyclictest0-21swapper/123:40:261
5152992417,4cyclictest29836-21apache223:39:440
5152992410,6cyclictest0-21swapper/023:12:530
5153992322,1cyclictest5527-21kworker/1:100:26:081
5153992313,7cyclictest29809-21apache222:35:561
5153992311,7cyclictest0-21swapper/121:25:311
5153992311,5cyclictest0-21swapper/123:13:371
5153992219,2cyclictest231ktimersoftd/121:47:031
5153992213,4cyclictest29836-21apache222:09:481
5153992210,8cyclictest0-21swapper/122:53:491
5153992210,7cyclictest0-21swapper/119:56:541
5153992210,5cyclictest0-21swapper/121:37:031
515399220,1cyclictest18163-21kworker/u4:021:58:581
5152992221,1cyclictest7-21ksoftirqd/021:11:440
5152992220,1cyclictest22277-21sh19:51:430
5152992220,1cyclictest0-21swapper/023:23:130
5152992215,4cyclictest10099-21sed19:17:060
5152992213,8cyclictest29809-21apache223:19:180
5152992212,6cyclictest97750irq/106-eth1-rx23:32:160
5152992210,6cyclictest0-21swapper/000:31:370
5152992210,12cyclictest0-21swapper/020:37:140
5153992121,0cyclictest0-21swapper/120:47:351
5153992120,1cyclictest29836-21apache221:13:001
5153992119,2cyclictest5150-21cyclictest19:42:381
5153992115,5cyclictest29809-21apache200:08:001
5153992111,5cyclictest29809-21apache223:09:071
5153992110,7cyclictest0-21swapper/120:44:101
5153992110,4cyclictest0-21swapper/122:12:031
5153992110,4cyclictest0-21swapper/121:46:421
5153992110,3cyclictest0-21swapper/123:01:461
5153992110,2cyclictest0-21swapper/121:34:021
515299214,3cyclictest0-21swapper/021:57:020
515299212,7cyclictest18163-21kworker/u4:022:08:510
515299212,2cyclictest18720-21diskmemload23:10:150
5152992120,1cyclictest81ktimersoftd/023:56:140
5152992119,1cyclictest7-21ksoftirqd/020:16:580
5152992117,3cyclictest0-21swapper/000:02:290
5152992117,2cyclictest29836-21apache221:49:010
5152992114,4cyclictest817-21apache219:29:550
5152992113,5cyclictest0-21swapper/023:05:150
5152992110,6cyclictest0-21swapper/000:16:300
5152992110,5cyclictest0-21swapper/022:47:240
5152992110,1cyclictest0-21swapper/000:11:120
515299210,1cyclictest0-21swapper/022:53:220
558422010,0sleep10-21swapper/100:32:391
515399209,5cyclictest18720-21diskmemload23:51:541
515399206,8cyclictest0-21swapper/122:02:061
515399204,11cyclictest0-21swapper/120:51:581
515399202,18cyclictest0-21swapper/122:22:191
515399202,17cyclictest16823-21basename21:01:431
5153992020,0cyclictest0-21swapper/120:12:001
5153992011,4cyclictest0-21swapper/122:41:561
515399201,14cyclictest0-21swapper/121:19:251
515399200,19cyclictest0-21swapper/123:49:401
515299204,7cyclictest0-21swapper/022:31:570
515299201,18cyclictest0-21swapper/021:36:070
5152992010,5cyclictest0-21swapper/021:18:210
5152992010,2cyclictest0-21swapper/022:06:150
1379322010,0sleep10-21swapper/119:27:031
515399195,7cyclictest0-21swapper/119:51:541
515399194,7cyclictest24458-21unixbench_multi23:27:031
515399194,7cyclictest0-21swapper/120:01:561
5153991917,0cyclictest0-21swapper/122:28:041
5153991915,0cyclictest0-21swapper/122:20:501
515399190,1cyclictest0-21swapper/100:26:441
515299194,12cyclictest0-21swapper/022:21:550
5152991915,2cyclictest29809-21apache223:45:590
5152991912,5cyclictest29836-21apache221:22:490
5152991912,3cyclictest0-21swapper/000:18:150
515299191,1cyclictest0-21swapper/021:14:470
5152991910,4cyclictest0-21swapper/019:22:020
5152991910,3cyclictest0-21swapper/021:41:550
5152991910,3cyclictest0-21swapper/000:34:150
5152991910,0cyclictest0-21swapper/023:27:030
515299190,12cyclictest0-21swapper/020:31:560
1120321910,1sleep00-21swapper/020:46:500
5153991816,1cyclictest4815-21ssh23:01:161
5153991816,1cyclictest16930-21awk19:36:561
5153991811,6cyclictest0-21swapper/120:31:141
5153991810,7cyclictest0-21swapper/120:06:581
5153991810,5cyclictest0-21swapper/100:12:051
5153991810,3cyclictest0-21swapper/123:42:001
5153991810,3cyclictest0-21swapper/120:21:561
5153991810,2cyclictest0-21swapper/119:06:571
5153991810,2cyclictest0-21swapper/119:06:571
515399180,3cyclictest0-21swapper/121:53:131
515299184,8cyclictest9974-21ls21:37:030
5152991817,1cyclictest5150-21cyclictest19:53:220
515299181,4cyclictest0-21swapper/020:22:050
5152991810,5cyclictest0-21swapper/022:17:560
5152991810,5cyclictest0-21swapper/020:57:000
5152991810,4cyclictest0-21swapper/019:57:040
5152991810,3cyclictest0-21swapper/023:47:250
5152991810,3cyclictest0-21swapper/022:15:100
515399174,9cyclictest0-21swapper/119:11:551
515399172,10cyclictest0-21swapper/119:21:581
515399171,13cyclictest0-21swapper/123:36:291
5153991711,3cyclictest0-21swapper/121:03:231
5153991710,5cyclictest29809-21apache200:04:541
5153991710,4cyclictest0-21swapper/120:32:031
5153991710,2cyclictest0-21swapper/119:16:571
5153991710,0cyclictest0-21swapper/120:16:571
515299176,6cyclictest0-21swapper/020:06:580
515299174,8cyclictest0-21swapper/020:51:550
515399166,5cyclictest15398-21/usr/sbin/munin19:32:001
515299163,8cyclictest1111-21runrttasks19:31:560
5152991614,1cyclictest0-21swapper/020:12:000
5152991610,2cyclictest0-21swapper/020:02:020
5152991610,2cyclictest0-21swapper/019:41:580
5152991610,2cyclictest0-21swapper/019:36:540
515299160,12cyclictest0-21swapper/021:01:590
515299154,5cyclictest0-21swapper/019:07:010
515299154,5cyclictest0-21swapper/019:07:010
5152991510,3cyclictest6324-21kworker/0:020:26:450
515299150,8cyclictest8220-21ls19:12:040
515299145,3cyclictest0-21swapper/020:42:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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