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2026-04-19 - 13:43
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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 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
116712840,2sleep02831399cyclictest21:10:370
2811927248,19sleep10-21swapper/119:09:011
2773827236,31sleep00-21swapper/019:05:020
80802660,2sleep00-21swapper/000:07:190
28313992910,2cyclictest0-21swapper/023:46:250
2831399290,27cyclictest12538-21ssh22:42:030
2831399290,19cyclictest9442-21/usr/sbin/munin19:44:260
2831499262,7cyclictest0-21swapper/122:14:241
2831499260,25cyclictest0-21swapper/123:57:271
28313992617,7cyclictest2375-21ssh21:43:380
28313992610,7cyclictest0-21swapper/022:10:250
28314992510,7cyclictest0-21swapper/120:29:271
28313992525,0cyclictest0-21swapper/019:50:330
28313992510,7cyclictest0-21swapper/023:16:130
28313992510,0cyclictest0-21swapper/021:22:380
2831499249,11cyclictest0-21swapper/121:21:031
2831499242,1cyclictest5595-21/usr/sbin/munin19:34:281
28314992419,4cyclictest1126-21apache223:31:571
28314992410,1cyclictest0-21swapper/123:08:191
2831499240,23cyclictest3659-21ntp_states21:44:261
2844922310,0sleep00-21swapper/023:49:290
2831499237,12cyclictest0-21swapper/100:29:261
2831499230,22cyclictest0-21swapper/122:55:441
28313992323,0cyclictest0-21swapper/023:02:550
28313992321,1cyclictest2850-21apache_processe21:44:200
28313992321,1cyclictest0-21swapper/021:53:380
28313992310,7cyclictest0-21swapper/022:24:470
28313992310,6cyclictest0-21swapper/020:42:290
28313992310,3cyclictest0-21swapper/023:06:040
2831499224,13cyclictest0-21swapper/119:54:211
2831499222,7cyclictest0-21swapper/119:49:261
28314992222,0cyclictest0-21swapper/123:50:361
28314992220,1cyclictest7898-21chrt23:20:261
2831499221,1cyclictest29545-21sh22:20:231
28314992210,7cyclictest0-21swapper/100:35:391
28314992210,5cyclictest0-21swapper/122:36:001
28314992210,2cyclictest0-21swapper/123:12:451
28314992210,1cyclictest0-21swapper/123:27:461
28314992210,11cyclictest0-21swapper/122:10:411
2831499220,2cyclictest32326-21ls21:39:241
2831499220,0cyclictest0-21swapper/121:29:031
2831399223,13cyclictest0-21swapper/000:14:260
28313992220,1cyclictest1534-21ssh23:12:060
28313992218,3cyclictest1126-21apache222:19:310
28313992218,3cyclictest1113-21apache222:52:150
28313992213,4cyclictest0-21swapper/022:54:210
28313992210,5cyclictest0-21swapper/000:35:150
1526822210,0sleep10-21swapper/122:00:321
810122110,0sleep10-21swapper/121:50:071
2831499216,10cyclictest18003-21/usr/sbin/munin22:49:251
2831499214,6cyclictest91rcu_preempt20:24:251
28314992121,0cyclictest0-21swapper/120:12:341
28314992119,1cyclictest24-21ksoftirqd/120:14:251
28314992113,6cyclictest1126-21apache200:19:521
28314992113,5cyclictest1126-21apache222:41:261
28314992110,4cyclictest0-21swapper/100:08:201
2831499210,14cyclictest25208-21ntp_states22:59:271
2831399217,6cyclictest0-21swapper/020:24:190
2831399213,8cyclictest0-21swapper/023:56:310
28313992117,2cyclictest28311-21cyclictest19:09:230
28313992115,2cyclictest81ktimersoftd/022:14:260
28313992110,8cyclictest0-21swapper/022:34:100
28313992110,7cyclictest0-21swapper/023:33:070
28313992110,6cyclictest0-21swapper/022:48:170
28313992110,5cyclictest21394-21munin-run00:29:080
28313992110,5cyclictest0-21swapper/020:29:200
28313992110,1cyclictest0-21swapper/020:54:080
2831399210,1cyclictest0-21swapper/019:21:100
2831399210,0cyclictest0-21swapper/000:29:280
2831499203,10cyclictest0-21swapper/121:09:221
28314992020,0cyclictest0-21swapper/121:55:531
28314992019,0cyclictest24-21ksoftirqd/121:34:201
28314992010,8cyclictest0-21swapper/122:31:311
28314992010,7cyclictest0-21swapper/121:29:191
28314992010,6cyclictest0-21swapper/100:14:181
28314992010,3cyclictest0-21swapper/122:44:261
2831499200,10cyclictest0-21swapper/122:04:201
2831399206,9cyclictest0-21swapper/019:24:190
2831399205,9cyclictest0-21swapper/020:34:220
2831399204,8cyclictest0-21swapper/019:29:200
2831399203,9cyclictest0-21swapper/019:14:290
28313992015,4cyclictest1126-21apache222:29:420
28313992011,3cyclictest0-21swapper/021:31:150
28313992010,6cyclictest0-21swapper/021:34:190
28313992010,6cyclictest0-21swapper/019:59:210
28313992010,4cyclictest0-21swapper/023:24:200
28313992010,4cyclictest0-21swapper/023:19:110
28313992010,4cyclictest0-21swapper/022:00:300
28313992010,4cyclictest0-21swapper/019:39:250
28313992010,2cyclictest0-21swapper/020:14:190
2831399200,5cyclictest0-21swapper/020:09:190
2831499194,9cyclictest0-21swapper/120:49:211
2831499194,9cyclictest0-21swapper/119:44:201
2831499194,4cyclictest9555-21diskmemload23:59:201
2831499194,11cyclictest0-21swapper/119:44:011
2831499193,8cyclictest0-21swapper/123:39:221
28314991919,0cyclictest231ktimersoftd/123:18:591
28314991919,0cyclictest0-21swapper/120:39:171
28314991918,0cyclictest24-21ksoftirqd/119:29:221
28314991910,6cyclictest0-21swapper/123:48:311
28314991910,6cyclictest0-21swapper/119:24:201
28314991910,5cyclictest0-21swapper/100:10:351
28314991910,5cyclictest0-21swapper/100:10:351
28314991910,4cyclictest0-21swapper/123:36:261
2831399191,8cyclictest11494-21munin-run00:14:080
2831399191,8cyclictest11494-21munin-run00:14:080
28313991910,7cyclictest0-21swapper/000:01:380
28313991910,5cyclictest0-21swapper/023:36:270
28313991910,4cyclictest0-21swapper/020:44:250
28313991910,1cyclictest0-21swapper/020:19:210
2831399190,11cyclictest0-21swapper/019:54:190
2831499188,6cyclictest0-21swapper/119:22:351
2831499184,9cyclictest0-21swapper/120:54:311
2831499184,7cyclictest0-21swapper/120:59:271
2831499183,8cyclictest0-21swapper/119:09:191
2831499182,5cyclictest0-21swapper/100:28:081
28314991816,1cyclictest24-21ksoftirqd/122:24:191
28314991810,4cyclictest0-21swapper/120:34:221
28314991810,3cyclictest0-21swapper/120:04:181
2831399182,8cyclictest0-21swapper/021:54:220
28313991817,1cyclictest1126-21apache200:21:010
28313991810,3cyclictest0-21swapper/022:05:370
28313991810,3cyclictest0-21swapper/021:28:320
28313991810,2cyclictest81ktimersoftd/021:09:080
1582721810,0sleep10-21swapper/121:16:271
2831499175,6cyclictest0-21swapper/119:14:211
2831499174,7cyclictest23423-21kernelversion20:19:231
28314991710,2cyclictest0-21swapper/120:49:081
2831399173,6cyclictest6612-21/usr/sbin/munin19:34:270
28313991710,5cyclictest0-21swapper/021:16:590
28313991710,3cyclictest0-21swapper/023:39:200
28313991710,3cyclictest0-21swapper/020:54:210
28313991710,3cyclictest0-21swapper/020:04:210
28313991610,3cyclictest0-21swapper/021:02:120
2831499157,2cyclictest15765-21kernelversion19:59:251
2831499147,4cyclictest24-21ksoftirqd/121:04:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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