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2026-03-19 - 14:51
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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 Mar 19, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1193927452,17sleep10-21swapper/119:08:201
1093327454,15sleep00-21swapper/019:04:390
172452670,1sleep10-21swapper/121:39:421
12225992711,8cyclictest0-21swapper/121:32:271
12225992610,7cyclictest0-21swapper/122:24:251
1222599260,0cyclictest0-21swapper/122:19:431
12224992621,4cyclictest16929-21apache220:58:490
12224992610,7cyclictest0-21swapper/023:58:130
12225992523,1cyclictest0-21swapper/123:08:311
12225992510,3cyclictest26913-21ssh21:09:401
1222599250,12cyclictest0-21swapper/122:09:351
1222499251,3cyclictest0-21swapper/021:43:340
12224992510,8cyclictest0-21swapper/000:09:360
12224992510,0cyclictest0-21swapper/023:42:020
12225992416,4cyclictest16929-21apache221:28:461
1222599241,3cyclictest30000-21apache_processe00:14:321
12225992410,13cyclictest0-21swapper/121:14:411
12225992410,13cyclictest0-21swapper/121:14:411
1222599240,10cyclictest0-21swapper/121:44:291
1222499243,20cyclictest0-21swapper/000:05:050
12224992415,6cyclictest636-21nscd23:12:290
12224992414,3cyclictest636-21nscd22:53:330
12224992410,5cyclictest0-21swapper/023:04:250
12224992410,1cyclictest0-21swapper/020:39:380
1222499240,13cyclictest12721-21/usr/sbin/munin21:34:340
12225992321,1cyclictest0-21swapper/119:24:381
12225992319,3cyclictest947-21sendmail-mta21:20:541
12225992315,1cyclictest25070-21ssh21:50:391
12225992310,6cyclictest0-21swapper/122:53:251
12225992310,6cyclictest0-21swapper/120:14:341
12224992310,1cyclictest0-21swapper/022:48:290
1222499230,11cyclictest0-21swapper/022:54:410
12225992210,6cyclictest0-21swapper/100:19:321
12225992210,6cyclictest0-21swapper/100:12:391
1222599220,16cyclictest0-21swapper/123:56:571
12224992216,5cyclictest1199-21runrttasks19:52:300
12224992213,8cyclictest0-21swapper/019:19:130
12224992210,9cyclictest0-21swapper/022:15:530
12224992210,7cyclictest0-21swapper/022:42:020
12224992210,5cyclictest0-21swapper/020:36:270
12224992210,4cyclictest0-21swapper/021:00:270
1222599215,6cyclictest0-21swapper/123:19:341
1222599215,11cyclictest0-21swapper/119:19:411
1222599215,10cyclictest0-21swapper/122:39:401
12225992115,4cyclictest0-21swapper/120:27:211
12225992113,3cyclictest0-21swapper/123:16:401
12225992110,6cyclictest0-21swapper/123:34:411
12225992110,4cyclictest0-21swapper/100:24:311
12225992110,3cyclictest0-21swapper/121:54:351
1222499217,14cyclictest0-21swapper/023:48:470
1222499216,6cyclictest0-21swapper/023:59:350
12224992121,0cyclictest0-21swapper/023:52:450
12224992120,1cyclictest0-21swapper/021:48:130
1222499211,18cyclictest0-21swapper/022:24:340
12224992111,3cyclictest0-21swapper/023:29:420
12224992110,9cyclictest15133-21ssh00:37:570
12224992110,5cyclictest0-21swapper/023:14:410
12224992110,5cyclictest0-21swapper/020:14:420
12224992110,4cyclictest0-21swapper/023:00:040
12224992110,2cyclictest0-21swapper/021:49:350
1222499210,2cyclictest0-21swapper/000:33:150
1222599208,9cyclictest636-21nscd00:07:441
1222599208,8cyclictest16952-21apache222:15:581
1222599205,14cyclictest0-21swapper/120:19:401
1222599204,8cyclictest0-21swapper/122:59:301
1222599204,11cyclictest0-21swapper/119:39:371
1222599202,10cyclictest0-21swapper/122:34:331
12225992012,6cyclictest0-21swapper/123:39:411
12225992012,5cyclictest0-21swapper/100:33:121
12225992010,6cyclictest0-21swapper/123:13:271
12225992010,6cyclictest0-21swapper/119:49:331
12225992010,4cyclictest0-21swapper/123:29:341
12225992010,0cyclictest0-21swapper/123:49:381
12225992010,0cyclictest0-21swapper/123:25:021
1222599200,15cyclictest0-21swapper/120:04:371
1222599200,10cyclictest13997-21idleruntime-cro19:14:221
1222599200,10cyclictest0-21swapper/119:34:371
1222499205,6cyclictest0-21swapper/021:24:330
12224992011,4cyclictest0-21swapper/000:19:410
1222499201,13cyclictest0-21swapper/021:58:000
1222499200,12cyclictest0-21swapper/019:09:370
367221910,0sleep00-21swapper/023:35:100
1222599194,6cyclictest20483-21ssh23:59:341
1222599193,3cyclictest0-21swapper/120:44:351
12225991911,4cyclictest0-21swapper/122:54:551
12225991910,6cyclictest0-21swapper/100:34:331
12225991910,4cyclictest0-21swapper/121:36:001
12225991910,0cyclictest0-21swapper/122:29:301
1222599190,7cyclictest5292-21munin-run22:09:221
1222499194,7cyclictest24306-21/usr/sbin/munin21:04:350
1222499193,8cyclictest0-21swapper/021:09:400
12224991913,5cyclictest16929-21apache221:31:530
12224991911,7cyclictest27800-21kworker/0:120:31:240
12224991911,4cyclictest0-21swapper/021:19:390
12224991910,5cyclictest0-21swapper/020:04:380
12224991910,5cyclictest0-21swapper/000:14:400
12224991910,2cyclictest0-21swapper/022:34:230
12224991910,0cyclictest100250irq/107-eth1-rx19:19:390
1222499190,1cyclictest0-21swapper/022:30:300
1222499190,1cyclictest0-21swapper/021:14:340
1222499190,1cyclictest0-21swapper/021:14:340
1222499190,10cyclictest0-21swapper/019:24:400
1010221910,0sleep00-21swapper/020:25:580
3270621810,0sleep10-21swapper/122:01:321
3104121810,1sleep10-21swapper/119:56:491
1353621810,0sleep10-21swapper/120:34:431
1222599186,6cyclictest0-21swapper/121:04:421
1222599182,9cyclictest0-21swapper/123:45:571
12225991816,1cyclictest20590-21ls19:29:371
12225991810,6cyclictest0-21swapper/120:56:021
12225991810,2cyclictest0-21swapper/120:14:001
12225991810,1cyclictest0-21swapper/120:40:191
12225991810,0cyclictest0-21swapper/122:46:141
12224991811,4cyclictest0-21swapper/020:49:370
12224991810,5cyclictest24310-21if_eth323:19:360
12224991810,4cyclictest0-21swapper/019:46:180
12224991810,3cyclictest0-21swapper/023:24:330
1222599175,9cyclictest0-21swapper/119:14:331
1222599174,9cyclictest0-21swapper/120:49:321
1222599174,5cyclictest0-21swapper/119:44:331
1222599172,9cyclictest0-21swapper/120:59:341
1222499173,5cyclictest818-21cron20:04:210
12224991717,0cyclictest0-21swapper/000:24:390
12224991711,6cyclictest27800-21kworker/0:120:24:080
12224991711,6cyclictest27800-21kworker/0:120:12:560
12224991710,4cyclictest0-21swapper/022:09:350
12224991710,3cyclictest0-21swapper/020:44:320
12224991710,3cyclictest0-21swapper/019:32:130
12224991710,2cyclictest0-21swapper/019:40:540
12224991710,1cyclictest0-21swapper/022:22:380
72121610,0sleep10-21swapper/120:03:341
12225991610,1cyclictest0-21swapper/120:29:311
12224991610,0cyclictest0-21swapper/021:59:390
12224991511,0cyclictest25856-21diskmemload22:05:160
1222499145,4cyclictest0-21swapper/019:54:380
12224991410,2cyclictest0-21swapper/019:37:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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