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2026-04-19 - 16:10
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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 Sun Apr 19, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2508626956,8sleep10-21swapper/107:06:111
2523326652,8sleep00-21swapper/007:07:420
287742650,0sleep10-21swapper/111:09:181
315812610,0sleep10-21swapper/109:41:321
25553992929,0cyclictest0-21swapper/011:30:260
2555399291,27cyclictest3001-21kworker/0:211:21:000
2555399291,1cyclictest25057-21sed12:34:250
2555399290,28cyclictest3001-21kworker/0:211:34:340
2537322925,2sleep10-21swapper/107:09:081
25554992828,0cyclictest0-21swapper/111:53:361
2555499280,15cyclictest3025-21apache210:23:071
25554992725,1cyclictest17264-21ssh12:24:051
25553992710,16cyclictest0-21swapper/011:03:110
25554992610,6cyclictest0-21swapper/109:58:091
25554992610,11cyclictest0-21swapper/111:04:201
25553992625,0cyclictest0-21swapper/008:29:080
25553992621,3cyclictest3074-21apache211:15:080
2555499250,23cyclictest0-21swapper/109:16:431
25553992516,9cyclictest8738-21kworker/0:007:10:460
2555399250,21cyclictest28420-21ssh11:08:480
2555499249,13cyclictest0-21swapper/110:09:531
2555499242,21cyclictest0-21swapper/111:16:241
25554992410,8cyclictest0-21swapper/112:06:201
25553992424,0cyclictest0-21swapper/008:35:350
25553992419,4cyclictest3047-21apache209:14:190
25554992320,3cyclictest3047-21apache208:31:131
25554992318,4cyclictest3074-21apache208:39:301
25554992310,9cyclictest0-21swapper/111:26:541
25554992310,4cyclictest0-21swapper/110:44:241
2555399233,16cyclictest0-21swapper/010:11:510
2555399232,5cyclictest0-21swapper/012:27:390
25553992310,7cyclictest0-21swapper/012:19:290
25553992310,5cyclictest0-21swapper/009:39:180
25553992310,2cyclictest0-21swapper/008:22:280
25553992310,12cyclictest8738-21kworker/0:007:28:320
2555499226,11cyclictest0-21swapper/108:44:271
2555499225,11cyclictest0-21swapper/108:09:201
2555499225,11cyclictest0-21swapper/107:24:181
25554992220,1cyclictest0-21swapper/112:29:531
25554992217,2cyclictest3074-21apache209:44:311
25554992217,2cyclictest3074-21apache209:44:311
25554992210,7cyclictest0-21swapper/108:24:201
2555499220,9cyclictest7085-21diskmemload11:19:271
2555499220,4cyclictest18792-21ls11:39:281
25553992222,0cyclictest9486-21ssh10:41:090
25553992220,1cyclictest81ktimersoftd/009:04:190
25553992219,1cyclictest0-21swapper/009:31:410
25553992217,4cyclictest3074-21apache210:37:580
25553992210,5cyclictest0-21swapper/007:39:350
16972220,2sleep12555499cyclictest07:29:241
2555499214,3cyclictest3026-21apache210:24:211
25554992116,1cyclictest0-21swapper/107:40:511
25554992115,6cyclictest231ktimersoftd/110:17:451
25554992113,4cyclictest25551-21cyclictest07:19:191
25554992111,7cyclictest17872-21kworker/u4:210:51:371
25554992110,7cyclictest0-21swapper/110:59:201
25554992110,7cyclictest0-21swapper/110:01:371
25554992110,5cyclictest0-21swapper/112:39:051
2555399213,18cyclictest3001-21kworker/0:211:28:560
2555399212,2cyclictest0-21swapper/009:13:020
2555399212,13cyclictest0-21swapper/012:14:490
25553992121,0cyclictest0-21swapper/010:20:120
25553992118,2cyclictest802-21apache210:52:340
25553992111,3cyclictest0-21swapper/009:46:120
25553992111,3cyclictest0-21swapper/009:46:120
25553992110,3cyclictest0-21swapper/010:24:210
2555399210,20cyclictest23096-21/usr/sbin/munin10:14:270
2555399210,12cyclictest0-21swapper/011:44:200
127522110,0sleep00-21swapper/012:00:300
108682210,0sleep10-21swapper/111:29:211
2850022010,0sleep10-21swapper/109:37:301
2555499208,4cyclictest0-21swapper/109:49:201
2555499206,8cyclictest0-21swapper/108:14:181
25554992018,1cyclictest7441-21latency12:09:241
25554992014,4cyclictest3047-21apache209:13:531
25554992010,7cyclictest0-21swapper/109:22:151
25554992010,5cyclictest0-21swapper/108:49:191
2555499200,9cyclictest0-21swapper/110:43:001
2555499200,13cyclictest18860-21ntp_states10:54:241
2555399206,8cyclictest0-21swapper/009:59:250
25553992016,2cyclictest81ktimersoftd/007:48:220
25553992015,3cyclictest3074-21apache210:48:450
25553992010,5cyclictest0-21swapper/012:04:190
25553992010,4cyclictest0-21swapper/012:09:190
25553992010,3cyclictest0-21swapper/009:27:540
2555499199,6cyclictest213752sleep109:28:101
2555499196,8cyclictest0-21swapper/112:24:291
2555499193,9cyclictest0-21swapper/108:59:271
2555499193,10cyclictest22058-21/usr/sbin/munin09:29:281
25554991916,1cyclictest0-21swapper/110:07:181
25554991914,3cyclictest3047-21apache211:37:221
25554991910,5cyclictest3074-21apache212:16:321
25554991910,4cyclictest0-21swapper/111:55:261
2555399192,8cyclictest0-21swapper/011:54:240
25553991918,1cyclictest0-21swapper/011:49:270
25553991918,1cyclictest0-21swapper/010:57:100
25553991910,4cyclictest0-21swapper/012:29:270
25553991910,4cyclictest0-21swapper/010:29:210
25553991910,4cyclictest0-21swapper/010:04:280
25553991910,3cyclictest0-21swapper/011:39:210
25553991910,3cyclictest0-21swapper/007:56:260
25553991910,2cyclictest0-21swapper/008:54:190
2555399190,8cyclictest0-21swapper/008:44:210
2555499182,8cyclictest0-21swapper/108:04:211
2555499182,15cyclictest0-21swapper/108:54:251
2555499182,11cyclictest0-21swapper/108:19:251
25554991818,0cyclictest0-21swapper/111:48:381
25554991817,1cyclictest3047-21apache207:49:211
25554991815,1cyclictest3047-21apache210:33:311
25554991810,4cyclictest0-21swapper/107:59:211
25554991810,3cyclictest0-21swapper/108:34:241
2555399185,7cyclictest0-21swapper/009:34:270
2555399185,6cyclictest0-21swapper/008:14:240
2555399185,12cyclictest0-21swapper/009:19:270
2555399182,8cyclictest7085-21diskmemload09:49:450
25553991812,1cyclictest1408-21/usr/sbin/munin07:29:220
25553991811,5cyclictest7-21ksoftirqd/008:59:200
25553991810,7cyclictest0-21swapper/009:56:280
25553991810,5cyclictest0-21swapper/011:11:460
25553991810,4cyclictest0-21swapper/007:49:200
25553991810,4cyclictest0-21swapper/007:34:220
25553991810,3cyclictest0-21swapper/008:09:270
25553991810,1cyclictest0-21swapper/007:14:220
2555499176,5cyclictest0-21swapper/111:59:291
2555499174,7cyclictest29248-21awk07:19:081
2555499173,9cyclictest0-21swapper/109:04:221
25554991710,7cyclictest0-21swapper/110:38:051
25554991710,5cyclictest0-21swapper/107:35:411
2555399179,3cyclictest0-21swapper/007:19:190
2555399173,7cyclictest0-21swapper/008:39:170
25553991710,2cyclictest0-21swapper/007:59:190
2555499163,6cyclictest0-21swapper/107:54:261
2555499161,14cyclictest7190-21df_inode07:44:211
25553991610,3cyclictest0-21swapper/008:49:190
25553991510,5cyclictest0-21swapper/008:27:040
25553991510,2cyclictest14645-21runrttasks08:04:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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