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2026-05-23 - 18:06
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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 Sat May 23, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299802730,1sleep029978-21seq10:24:130
2077526849,5sleep10-21swapper/107:04:131
2147926755,8sleep00-21swapper/007:07:190
93972610,0sleep00-21swapper/010:39:330
274112500,0sleep10-21swapper/107:23:461
21808993613,22cyclictest0-21swapper/107:12:151
21808993416,18cyclictest0-21swapper/108:52:011
21808993010,0cyclictest0-21swapper/109:31:321
21807993015,11cyclictest28106-21ssh12:31:360
2180899290,29cyclictest0-21swapper/107:18:271
21807992929,0cyclictest0-21swapper/012:14:120
21808992810,3cyclictest0-21swapper/111:13:581
2180899280,28cyclictest0-21swapper/112:32:591
21807992810,0cyclictest0-21swapper/007:43:120
21808992610,13cyclictest0-21swapper/110:24:491
2180899260,13cyclictest6972-21sh12:04:031
21807992626,0cyclictest0-21swapper/010:34:420
21807992626,0cyclictest0-21swapper/007:17:010
2180799260,21cyclictest3338-21diskmemload09:19:000
1352022610,0sleep00-21swapper/010:45:230
2180899253,21cyclictest0-21swapper/111:44:091
21808992523,1cyclictest31706-21apache212:22:591
21807992518,6cyclictest31706-21apache209:30:010
21807992510,6cyclictest0-21swapper/010:54:150
21807992510,1cyclictest0-21swapper/011:22:350
21807992510,0cyclictest0-21swapper/012:07:430
21808992414,7cyclictest31706-21apache210:13:321
21808992412,5cyclictest0-21swapper/111:20:421
21807992423,1cyclictest0-21swapper/012:21:320
21807992410,2cyclictest0-21swapper/009:45:540
21807992410,13cyclictest0-21swapper/008:27:240
21808992310,6cyclictest0-21swapper/111:30:111
21807992319,2cyclictest13906-21kworker/u4:009:34:500
21807992310,6cyclictest0-21swapper/010:13:010
21807992310,5cyclictest0-21swapper/011:59:040
2180899228,7cyclictest0-21swapper/110:31:471
21808992219,1cyclictest14747-21sh09:23:221
2180899221,2cyclictest0-21swapper/109:44:071
21808992211,5cyclictest0-21swapper/112:10:521
21808992210,6cyclictest0-21swapper/111:02:571
21808992210,5cyclictest0-21swapper/112:15:461
21808992210,5cyclictest0-21swapper/111:54:101
21808992210,11cyclictest0-21swapper/107:49:191
21807992220,1cyclictest588-21in:imuxsock11:18:520
21807992219,1cyclictest81ktimersoftd/009:25:340
21807992218,2cyclictest3338-21diskmemload12:09:220
21807992218,2cyclictest31690-21apache211:26:090
21807992217,4cyclictest802-21apache212:25:470
2180799221,6cyclictest0-21swapper/010:16:290
2180799221,18cyclictest29399-21egrep12:34:040
2879822110,0sleep10-21swapper/111:05:431
2180899219,8cyclictest30666-21tr11:09:041
2180899216,7cyclictest1199-21runrttasks09:48:551
21808992110,9cyclictest0-21swapper/109:14:581
21808992110,7cyclictest0-21swapper/111:38:371
21808992110,6cyclictest0-21swapper/111:50:401
21808992110,4cyclictest21805-21cyclictest09:54:071
21808992110,3cyclictest0-21swapper/109:11:031
21808992110,1cyclictest0-21swapper/110:13:571
2180899210,0cyclictest18616-21ssh09:28:211
2180799216,8cyclictest28791-21/usr/sbin/munin08:49:080
2180799216,6cyclictest0-21swapper/011:39:030
21807992119,1cyclictest16002-21users08:14:130
21807992119,1cyclictest0-21swapper/011:04:420
21807992118,2cyclictest0-21swapper/008:19:100
21807992116,3cyclictest27019-21pidof07:19:410
21807992111,5cyclictest744-21snmpd09:39:050
2180799211,15cyclictest0-21swapper/009:15:410
21807992110,6cyclictest100250irq/107-eth1-rx09:57:510
21807992110,6cyclictest0-21swapper/011:44:030
21807992110,4cyclictest0-21swapper/011:09:050
1909522110,1sleep00-21swapper/011:36:010
2180899207,8cyclictest0-21swapper/110:54:041
2180899205,5cyclictest0-21swapper/109:59:321
2180899202,17cyclictest0-21swapper/107:33:521
21808992017,0cyclictest0-21swapper/110:07:281
21808992014,2cyclictest2340-21ntpdc09:04:091
2180899201,18cyclictest0-21swapper/109:38:031
21808992010,6cyclictest0-21swapper/110:35:451
21808992010,0cyclictest0-21swapper/107:59:171
2180799203,9cyclictest3338-21diskmemload11:54:050
21807992020,0cyclictest0-21swapper/007:11:300
21807992018,1cyclictest636-21nscd09:51:490
21807992010,1cyclictest0-21swapper/007:58:280
2180899193,12cyclictest0-21swapper/108:39:091
2180899192,11cyclictest0-21swapper/107:39:041
21808991918,1cyclictest31690-21apache211:41:581
21808991911,4cyclictest0-21swapper/108:04:061
21808991910,5cyclictest0-21swapper/110:39:531
21808991910,3cyclictest0-21swapper/112:34:081
2180899190,9cyclictest0-21swapper/108:29:041
2180799196,4cyclictest26298-21ls10:19:150
21807991912,4cyclictest31706-21apache210:29:220
21807991910,4cyclictest0-21swapper/010:48:540
21807991910,4cyclictest0-21swapper/007:44:050
1322421910,0sleep10-21swapper/110:44:481
353721810,0sleep00-21swapper/009:09:000
2180899188,5cyclictest9493-21apache_accesses11:24:031
2180899184,9cyclictest0-21swapper/108:44:121
2180899184,11cyclictest0-21swapper/107:24:051
21808991817,1cyclictest31706-21apache209:41:241
21808991810,6cyclictest0-21swapper/112:00:191
21808991810,6cyclictest0-21swapper/108:59:041
21808991810,5cyclictest0-21swapper/108:14:431
21808991810,4cyclictest0-21swapper/110:50:091
21808991810,3cyclictest0-21swapper/107:29:031
21808991810,2cyclictest0-21swapper/112:24:011
21808991810,2cyclictest0-21swapper/107:44:091
2180799182,10cyclictest0-21swapper/010:07:440
21807991811,0cyclictest0-21swapper/008:44:030
21807991810,4cyclictest0-21swapper/008:39:040
21807991810,3cyclictest0-21swapper/011:49:030
21807991810,3cyclictest0-21swapper/008:59:030
2180799180,14cyclictest31371-21apt-get07:33:520
1481821810,0sleep00-21swapper/011:29:540
21808991710,5cyclictest0-21swapper/108:19:021
21808991710,2cyclictest0-21swapper/108:37:161
2180799172,8cyclictest0-21swapper/009:04:000
21807991717,0cyclictest0-21swapper/008:58:030
21807991710,3cyclictest0-21swapper/010:59:050
975121610,0sleep00-21swapper/009:59:040
2180899164,6cyclictest0-21swapper/107:54:061
2180899163,10cyclictest0-21swapper/108:09:061
2180899161,8cyclictest0-21swapper/108:24:131
21808991615,1cyclictest21805-21cyclictest10:22:031
2180799164,7cyclictest0-21swapper/008:09:050
2180799163,6cyclictest0-21swapper/007:24:070
21807991616,0cyclictest81ktimersoftd/007:49:020
21807991614,2cyclictest744-21snmpd08:03:530
21807991610,2cyclictest0-21swapper/007:33:530
21808991510,0cyclictest0-21swapper/108:55:151
21807991510,5cyclictest0-21swapper/008:31:210
21807991510,3cyclictest0-21swapper/007:59:070
2180799145,5cyclictest0-21swapper/008:34:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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