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2026-09-15 - 04:51
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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 Tue Sep 15, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
849127056,9sleep10-21swapper/119:04:571
847626546,14sleep00-21swapper/019:04:480
69872490,2sleep1895399cyclictest22:13:361
8952992918,11cyclictest0-21swapper/023:02:410
8952992916,9cyclictest7-21ksoftirqd/019:12:530
8953992810,3cyclictest0-21swapper/122:31:321
8952992820,4cyclictest81ktimersoftd/000:18:060
8953992722,4cyclictest4464-21apache221:13:511
8952992715,12cyclictest0-21swapper/021:18:210
8953992626,0cyclictest0-21swapper/121:45:001
895399260,16cyclictest0-21swapper/120:58:071
8952992620,5cyclictest4464-21apache223:16:140
895299260,16cyclictest0-21swapper/020:08:130
8952992523,1cyclictest9704-21if_eth322:18:080
8952992521,2cyclictest81ktimersoftd/021:32:120
8952992519,4cyclictest802-21apache221:38:170
8953992410,8cyclictest0-21swapper/123:15:311
8952992420,3cyclictest4438-21apache223:23:210
8952992419,4cyclictest4438-21apache221:49:430
8952992419,2cyclictest12700-21ssh23:08:020
8952992411,4cyclictest0-21swapper/023:48:160
8952992410,7cyclictest0-21swapper/023:33:120
8953992318,4cyclictest231ktimersoftd/121:42:201
895399231,16cyclictest0-21swapper/121:12:541
8953992310,6cyclictest0-21swapper/120:48:041
8953992310,4cyclictest0-21swapper/121:58:071
895299234,18cyclictest0-21swapper/021:37:270
8952992321,1cyclictest22534-21diskmemload00:08:130
8952992317,4cyclictest22221-21ssh00:06:390
8952992311,5cyclictest0-21swapper/022:28:330
895299230,22cyclictest0-21swapper/023:32:530
895299230,22cyclictest0-21swapper/023:32:530
895299230,21cyclictest0-21swapper/021:57:070
895399223,11cyclictest0-21swapper/120:03:071
895399221,20cyclictest0-21swapper/122:08:101
895399221,0cyclictest0-21swapper/123:02:331
8953992210,4cyclictest0-21swapper/121:20:321
895399220,11cyclictest0-21swapper/120:18:101
8952992221,1cyclictest0-21swapper/020:47:370
8952992215,6cyclictest4464-21apache221:13:370
8952992214,5cyclictest4464-21apache222:11:260
8952992211,6cyclictest22759-21kworker/u4:022:03:340
8952992211,10cyclictest0-21swapper/022:33:150
895299220,10cyclictest0-21swapper/000:13:130
895399219,9cyclictest0-21swapper/122:23:031
895399218,7cyclictest22534-21diskmemload22:49:521
895399215,11cyclictest0-21swapper/120:38:071
895399212,11cyclictest0-21swapper/100:23:051
895399211,0cyclictest0-21swapper/123:29:161
895399211,0cyclictest0-21swapper/123:29:161
8953992110,7cyclictest0-21swapper/123:03:341
8953992110,2cyclictest0-21swapper/122:47:381
895299217,8cyclictest0-21swapper/023:42:080
895299215,10cyclictest0-21swapper/023:03:090
895299215,10cyclictest0-21swapper/020:53:060
8952992110,7cyclictest10333-21kworker/0:222:13:440
8952992110,6cyclictest0-21swapper/019:38:080
8952992110,6cyclictest0-21swapper/000:24:430
8952992110,4cyclictest0-21swapper/019:53:080
8952992110,3cyclictest0-21swapper/020:38:100
895299210,20cyclictest0-21swapper/022:49:470
895399205,7cyclictest0-21swapper/120:23:121
895399203,9cyclictest0-21swapper/119:53:071
895399202,12cyclictest0-21swapper/123:23:151
8953992012,3cyclictest0-21swapper/122:03:431
895399201,18cyclictest22534-21diskmemload21:52:191
895399201,13cyclictest8762-21sed21:32:541
8953992010,6cyclictest0-21swapper/121:23:051
8953992010,5cyclictest0-21swapper/122:20:351
8953992010,5cyclictest0-21swapper/121:03:081
895399200,17cyclictest22534-21diskmemload23:59:431
895299206,9cyclictest0-21swapper/019:48:090
895299206,5cyclictest0-21swapper/020:48:120
8952992011,2cyclictest0-21swapper/022:00:340
8952992010,1cyclictest0-21swapper/000:02:050
762622010,1sleep10-21swapper/123:45:051
740622010,0sleep00-21swapper/023:44:340
514922010,0sleep10-21swapper/100:28:041
895399198,4cyclictest12602-21apache_processe23:53:041
895399195,12cyclictest0-21swapper/119:38:091
895399193,11cyclictest0-21swapper/123:50:481
895399192,11cyclictest0-21swapper/120:53:041
8953991915,4cyclictest100150irq/106-eth1-rx21:34:551
8953991911,5cyclictest13565-21/usr/sbin/munin19:18:101
8953991910,5cyclictest0-21swapper/119:23:061
8953991910,3cyclictest0-21swapper/120:14:321
8953991910,2cyclictest0-21swapper/100:18:061
8953991910,0cyclictest0-21swapper/100:34:131
895399190,0cyclictest0-21swapper/123:38:121
895299193,9cyclictest0-21swapper/019:13:050
8952991919,0cyclictest0-21swapper/022:43:340
8952991915,2cyclictest9257-21/usr/sbin/munin20:33:150
8952991911,5cyclictest3860-21ssh22:54:460
8952991910,5cyclictest0-21swapper/023:53:090
8952991910,5cyclictest0-21swapper/020:03:080
8952991910,5cyclictest0-21swapper/000:34:330
8952991910,4cyclictest0-21swapper/022:22:570
8952991910,4cyclictest0-21swapper/019:18:110
8952991910,2cyclictest0-21swapper/020:22:190
895299190,9cyclictest0-21swapper/019:33:080
337521910,0sleep10-21swapper/122:53:391
895399185,7cyclictest0-21swapper/119:58:081
895399184,4cyclictest22534-21diskmemload00:13:061
895399182,8cyclictest0-21swapper/122:38:091
8953991810,5cyclictest16656-21/usr/sbin/munin19:28:041
8953991810,3cyclictest0-21swapper/100:03:051
8953991810,2cyclictest0-21swapper/121:52:571
895399180,6cyclictest26314-21munin-run00:12:531
895399180,11cyclictest0-21swapper/119:13:141
895299182,6cyclictest5918-21runrttasks20:23:080
8952991814,3cyclictest4464-21apache220:30:290
8952991813,1cyclictest0-21swapper/023:20:230
8952991812,3cyclictest8950-21cyclictest21:47:340
8952991810,1cyclictest0-21swapper/021:03:090
8952991810,0cyclictest0-21swapper/019:47:320
1625121810,0sleep00-21swapper/019:25:280
8953991713,3cyclictest4438-21apache220:28:241
8953991712,3cyclictest0-21swapper/120:43:051
8953991711,4cyclictest100150irq/106-eth1-rx22:33:261
8953991711,4cyclictest0-21swapper/120:33:061
8953991710,7cyclictest0-21swapper/123:11:221
8953991710,3cyclictest0-21swapper/123:19:391
8953991710,2cyclictest0-21swapper/119:43:051
8953991710,0cyclictest0-21swapper/123:33:451
895299174,7cyclictest0-21swapper/020:58:110
895299173,9cyclictest0-21swapper/022:38:040
8952991715,1cyclictest2065-21/usr/sbin/munin20:13:090
8952991710,5cyclictest0-21swapper/021:22:540
8952991710,3cyclictest0-21swapper/019:28:060
895299170,16cyclictest0-21swapper/021:11:470
895399165,3cyclictest1199-21runrttasks19:34:441
895399164,9cyclictest24877-21/usr/sbin/munin19:48:091
8953991610,3cyclictest0-21swapper/120:08:071
8952991610,1cyclictest0-21swapper/000:31:550
895299160,12cyclictest0-21swapper/019:58:430
895399153,6cyclictest8973-21apache_accesses19:08:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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