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2026-09-17 - 21:42
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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 Sep 17, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193326956,8sleep10-21swapper/107:02:551
344526755,8sleep00-21swapper/007:05:170
98322630,0sleep09833-21expr07:23:030
3874993227,5cyclictest0-21swapper/107:23:401
3873993010,3cyclictest0-21swapper/011:03:040
3874992811,16cyclictest0-21swapper/109:02:261
387499280,28cyclictest0-21swapper/112:36:251
3874992710,6cyclictest0-21swapper/112:00:311
3874992710,12cyclictest0-21swapper/107:33:031
387399270,18cyclictest20699-21/usr/sbin/munin09:58:050
3874992624,1cyclictest30407-21ssh12:32:271
3874992621,1cyclictest0-21swapper/110:00:321
3874992620,6cyclictest0-21swapper/107:13:101
3874992618,5cyclictest802-21apache210:56:331
3873992626,0cyclictest0-21swapper/011:45:250
3873992617,5cyclictest13688-21apache212:16:140
3873992610,12cyclictest0-21swapper/012:22:460
387399260,10cyclictest0-21swapper/012:28:030
3874992510,0cyclictest0-21swapper/109:18:481
387499250,23cyclictest0-21swapper/109:38:501
387499250,19cyclictest11749-21rm09:43:451
387399250,24cyclictest0-21swapper/009:20:260
667022410,4sleep10-21swapper/111:09:021
3873992424,0cyclictest0-21swapper/008:33:140
387399242,19cyclictest0-21swapper/010:13:140
3873992418,0cyclictest8876-21grep07:18:130
3873992416,4cyclictest0-21swapper/007:08:090
3873992410,6cyclictest0-21swapper/010:38:330
387499233,11cyclictest0-21swapper/108:43:051
3874992314,8cyclictest100250irq/107-eth1-rx09:34:571
387499231,21cyclictest0-21swapper/111:45:081
387499231,21cyclictest0-21swapper/110:03:111
3874992310,7cyclictest0-21swapper/108:38:141
3874992310,6cyclictest0-21swapper/109:23:091
387399232,4cyclictest0-21swapper/009:09:040
3873992311,6cyclictest0-21swapper/011:59:180
3873992310,6cyclictest0-21swapper/011:42:070
3873992310,5cyclictest0-21swapper/011:33:170
387399230,23cyclictest0-21swapper/010:50:150
1909422310,0sleep10-21swapper/109:54:161
3874992220,1cyclictest0-21swapper/112:05:391
3874992214,2cyclictest0-21swapper/109:49:101
3874992210,9cyclictest0-21swapper/110:29:211
3873992211,6cyclictest13383-21apt-get07:32:520
3873992210,9cyclictest0-21swapper/010:36:080
3873992210,6cyclictest0-21swapper/012:03:110
3873992210,5cyclictest0-21swapper/010:54:340
3873992210,3cyclictest0-21swapper/009:00:540
387499214,10cyclictest0-21swapper/111:48:041
3874992121,0cyclictest0-21swapper/111:18:101
3874992111,3cyclictest0-21swapper/112:18:181
387499211,12cyclictest0-21swapper/110:08:101
3874992110,6cyclictest0-21swapper/107:40:371
3874992110,4cyclictest636-21nscd12:25:031
3874992110,2cyclictest0-21swapper/107:08:031
387399215,9cyclictest17749-21diskmemload11:24:120
3873992119,1cyclictest4960-21ssh10:19:250
3873992112,5cyclictest100250irq/107-eth1-rx11:20:540
3873992110,3cyclictest0-21swapper/011:16:230
3874992018,2cyclictest0-21swapper/108:28:041
3874992018,1cyclictest0-21swapper/111:13:051
3874992016,3cyclictest13688-21apache211:40:441
3874992011,2cyclictest0-21swapper/109:10:221
3874992010,4cyclictest0-21swapper/111:24:351
3874992010,4cyclictest0-21swapper/111:01:131
3874992010,3cyclictest0-21swapper/111:33:031
3874992010,3cyclictest0-21swapper/108:13:041
3874992010,1cyclictest21403-21latency_hist07:52:521
3874992010,0cyclictest0-21swapper/111:28:101
3873992010,8cyclictest0-21swapper/009:56:050
3873992010,7cyclictest100250irq/107-eth1-rx10:42:540
3873992010,5cyclictest0-21swapper/007:33:050
3873992010,4cyclictest0-21swapper/009:35:530
3873992010,3cyclictest0-21swapper/010:23:040
3873992010,0cyclictest0-21swapper/010:58:000
387499192,15cyclictest23385-21systemd10:47:291
387499192,10cyclictest0-21swapper/110:33:081
3874991917,1cyclictest636-21nscd11:55:541
3874991910,3cyclictest0-21swapper/110:17:541
3874991910,3cyclictest0-21swapper/108:48:071
3874991910,1cyclictest0-21swapper/108:03:121
387399195,12cyclictest0-21swapper/008:28:050
387399192,9cyclictest0-21swapper/008:03:040
387399192,10cyclictest0-21swapper/011:28:110
3873991915,3cyclictest3871-21cyclictest08:02:490
3873991910,9cyclictest0-21swapper/010:06:100
3873991910,4cyclictest0-21swapper/009:48:040
3238721910,0sleep00-21swapper/009:28:050
3208121910,0sleep00-21swapper/008:18:150
387499183,10cyclictest0-21swapper/107:43:041
3874991815,2cyclictest1199-21runrttasks09:16:591
3874991810,7cyclictest0-21swapper/110:38:021
3874991810,3cyclictest0-21swapper/109:28:021
3874991810,3cyclictest0-21swapper/108:53:021
3874991810,2cyclictest0-21swapper/109:03:091
3874991810,1cyclictest0-21swapper/110:13:021
3874991810,0cyclictest0-21swapper/111:07:341
3874991810,0cyclictest0-21swapper/108:08:061
387399187,9cyclictest21449-21apache_processe07:53:030
387399185,8cyclictest0-21swapper/008:13:050
387399185,7cyclictest0-21swapper/009:38:050
387399183,8cyclictest18135-21/usr/sbin/munin07:43:070
3873991817,1cyclictest13715-21apache212:24:290
3873991816,1cyclictest636-21nscd09:26:360
3873991815,2cyclictest0-21swapper/012:11:010
3873991813,1cyclictest3871-21cyclictest11:10:020
3873991811,4cyclictest0-21swapper/009:03:120
3873991811,4cyclictest0-21swapper/008:53:040
3873991810,5cyclictest81ktimersoftd/011:48:090
3873991810,5cyclictest0-21swapper/007:13:040
3873991810,3cyclictest0-21swapper/010:29:310
3873991810,3cyclictest0-21swapper/009:13:120
3873991810,3cyclictest0-21swapper/008:23:370
3873991810,3cyclictest0-21swapper/008:08:040
3873991810,1cyclictest0-21swapper/010:11:110
387399180,7cyclictest0-21swapper/012:35:350
387499173,9cyclictest0-21swapper/108:33:111
387499172,9cyclictest0-21swapper/107:55:201
3874991717,0cyclictest0-21swapper/107:29:371
3874991716,1cyclictest8114-21ssh10:23:381
3874991712,3cyclictest18872sleep108:23:181
3874991710,5cyclictest100450irq/109-eth1-tx12:08:071
3874991710,5cyclictest0-21swapper/112:17:181
3874991710,3cyclictest0-21swapper/110:51:231
3874991710,2cyclictest0-21swapper/108:22:521
387399176,5cyclictest10975-21/usr/sbin/munin08:48:110
387399174,4cyclictest0-21swapper/011:55:020
387399171,5cyclictest0-21swapper/007:48:070
3873991710,4cyclictest0-21swapper/008:43:030
387499163,5cyclictest0-21swapper/107:18:061
3874991610,3cyclictest0-21swapper/107:58:011
387399165,8cyclictest0-21swapper/009:43:150
387399164,7cyclictest0-21swapper/008:38:050
3873991410,2cyclictest0-21swapper/007:38:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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