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2025-06-12 - 14:54
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Thu Jun 12, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1517527047,17sleep00-21swapper/019:03:190
1492426754,8sleep10-21swapper/119:03:081
141562640,1sleep10-21swapper/100:19:471
16855993434,0cyclictest0-21swapper/121:21:571
1685599302,23cyclictest0-21swapper/121:58:171
16854993022,8cyclictest0-21swapper/022:51:260
16855992926,1cyclictest0-21swapper/122:19:271
16855992925,1cyclictest0-21swapper/122:52:291
16855992910,3cyclictest0-21swapper/121:34:261
1685599290,27cyclictest0-21swapper/122:53:201
16854992810,3cyclictest0-21swapper/022:01:380
1685499280,12cyclictest31833-21ssh21:08:210
16855992725,1cyclictest7302-21ssh23:28:141
16854992710,16cyclictest0-21swapper/021:25:310
16855992610,8cyclictest0-21swapper/119:33:141
1685599260,1cyclictest0-21swapper/122:16:131
1685599253,16cyclictest26676-21kworker/u4:000:37:471
16854992520,3cyclictest32378-21apache223:01:280
16854992510,1cyclictest0-21swapper/023:52:270
16855992410,3cyclictest0-21swapper/121:23:081
1685599240,3cyclictest0-21swapper/121:38:121
1685599240,23cyclictest0-21swapper/122:24:461
16854992414,10cyclictest0-21swapper/023:10:540
16854992413,8cyclictest0-21swapper/022:09:040
16854992410,0cyclictest0-21swapper/000:18:100
1685499240,21cyclictest15815-21df_inode22:13:140
1685499240,1cyclictest0-21swapper/022:57:190
16855992312,6cyclictest32378-21apache200:00:551
1685599230,12cyclictest0-21swapper/121:48:121
1685499238,10cyclictest22299-21kworker/u4:222:27:080
1685499235,12cyclictest0-21swapper/022:33:130
16854992320,3cyclictest32378-21apache200:17:200
16854992319,3cyclictest32378-21apache222:21:020
1685499231,4cyclictest0-21swapper/021:45:010
16854992314,9cyclictest0-21swapper/019:19:080
16854992310,9cyclictest0-21swapper/021:50:260
16854992310,2cyclictest0-21swapper/020:03:130
16854992310,2cyclictest0-21swapper/000:34:320
2496222210,0sleep10-21swapper/120:53:151
1685599225,15cyclictest0-21swapper/122:47:461
1685599222,14cyclictest0-21swapper/122:12:261
16855992219,2cyclictest32392-21apache220:58:171
16855992210,4cyclictest0-21swapper/123:53:441
16855992210,4cyclictest0-21swapper/120:09:411
16855992210,2cyclictest0-21swapper/123:25:471
1685599220,8cyclictest0-21swapper/120:43:121
16854992216,3cyclictest0-21swapper/023:18:330
16854992210,4cyclictest0-21swapper/000:08:170
936022110,0sleep10-21swapper/122:03:361
1685599219,7cyclictest0-21swapper/122:28:211
1685599212,12cyclictest0-21swapper/100:13:151
1685599212,11cyclictest0-21swapper/119:08:221
16855992115,4cyclictest32378-21apache223:18:321
1685599211,4cyclictest0-21swapper/121:31:111
1685599211,2cyclictest0-21swapper/100:12:261
16855992110,7cyclictest0-21swapper/123:46:381
16855992110,6cyclictest21664-21rt-features19:18:191
16855992110,4cyclictest0-21swapper/123:33:131
16855992110,3cyclictest0-21swapper/122:38:341
1685499217,8cyclictest692-21ntpd00:23:220
1685499217,12cyclictest0-21swapper/020:48:180
16854992115,6cyclictest0-21swapper/023:35:060
16854992115,5cyclictest32378-21apache222:41:470
16854992111,5cyclictest29807-21sh23:58:040
16854992110,5cyclictest0-21swapper/021:57:220
16854992110,4cyclictest0-21swapper/021:42:140
1726922010,2sleep00-21swapper/019:08:170
16855992019,0cyclictest0-21swapper/100:23:201
16855992018,1cyclictest24-21ksoftirqd/119:43:011
16855992010,5cyclictest0-21swapper/121:53:211
16855992010,3cyclictest0-21swapper/120:33:211
1685599200,1cyclictest91rcu_preempt22:58:181
1685499207,9cyclictest0-21swapper/022:31:480
1685499205,8cyclictest0-21swapper/023:28:140
1685499204,7cyclictest168-21systemd-journal21:38:010
1685499204,12cyclictest0-21swapper/019:48:160
1685499203,15cyclictest0-21swapper/023:38:210
16854992018,1cyclictest7-21ksoftirqd/022:48:000
16854992010,4cyclictest0-21swapper/021:22:050
16854992010,3cyclictest19450-21pmu-power23:43:200
16854992010,0cyclictest0-21swapper/023:04:360
2453521910,0sleep10-21swapper/123:50:321
1685599194,8cyclictest0-21swapper/119:28:121
1685599193,10cyclictest0-21swapper/100:03:221
16855991918,1cyclictest0-21swapper/120:32:531
16855991917,1cyclictest24-21ksoftirqd/120:38:141
16855991910,5cyclictest0-21swapper/121:15:061
16855991910,4cyclictest0-21swapper/123:13:351
16855991910,4cyclictest0-21swapper/121:09:431
16855991910,3cyclictest0-21swapper/100:29:401
1685599190,4cyclictest0-21swapper/123:08:071
1685599190,2cyclictest0-21swapper/123:04:321
1685499197,9cyclictest0-21swapper/020:33:140
1685499194,8cyclictest0-21swapper/000:03:150
1685499194,11cyclictest0-21swapper/019:23:130
16854991918,0cyclictest0-21swapper/019:28:130
16854991910,6cyclictest0-21swapper/023:13:180
16854991910,6cyclictest0-21swapper/022:03:180
16854991910,5cyclictest0-21swapper/023:54:180
16854991910,5cyclictest0-21swapper/020:13:190
1685499190,0cyclictest0-21swapper/000:28:330
1685599184,8cyclictest231ktimersoftd/120:03:181
1685599184,8cyclictest0-21swapper/123:38:181
1685599183,8cyclictest0-21swapper/120:18:201
16855991817,0cyclictest24-21ksoftirqd/122:33:451
16855991816,1cyclictest23287-21http_loadtime20:48:151
16855991813,5cyclictest32392-21apache219:43:151
16855991810,5cyclictest0-21swapper/119:58:161
16855991810,1cyclictest0-21swapper/121:43:031
1685599180,10cyclictest0-21swapper/120:23:241
1685499182,9cyclictest0-21swapper/020:18:140
16854991810,5cyclictest0-21swapper/019:42:410
16854991810,4cyclictest0-21swapper/020:09:570
16854991810,4cyclictest0-21swapper/019:13:210
16854991810,3cyclictest0-21swapper/020:53:210
16854991810,3cyclictest0-21swapper/019:33:200
16854991810,2cyclictest0-21swapper/023:23:160
526321710,1sleep00-21swapper/020:00:410
1685599176,5cyclictest0-21swapper/120:13:201
1685599174,6cyclictest0-21swapper/119:23:191
16855991710,4cyclictest0-21swapper/119:48:131
16855991710,3cyclictest0-21swapper/121:03:141
1685599170,8cyclictest0-21swapper/119:13:141
1685499179,3cyclictest0-21swapper/020:43:140
16854991710,5cyclictest0-21swapper/020:58:570
16854991710,4cyclictest0-21swapper/021:14:290
16854991710,1cyclictest0-21swapper/020:23:240
16855991610,3cyclictest0-21swapper/119:53:141
1685499164,4cyclictest15308-21/usr/sbin/munin20:28:150
16854991610,6cyclictest0-21swapper/019:43:020
16854991610,4cyclictest0-21swapper/020:38:200
16854991610,3cyclictest0-21swapper/021:28:390
1685499160,10cyclictest0-21swapper/021:03:130
1685499154,5cyclictest0-21swapper/019:53:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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