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2026-05-07 - 05:26
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Thu May 07, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11554012302261,26sleep00-21swapper/019:08:060
11551402264186,29sleep10-21swapper/119:05:311
119948021180,4sleep00-21swapper/020:55:220
179699610,4rtkit-daemon1795-21rtkit-daemon23:34:330
179699610,4rtkit-daemon1795-21rtkit-daemon21:35:471
179699590,4rtkit-daemon1795-21rtkit-daemon21:51:170
179699580,3rtkit-daemon1795-21rtkit-daemon21:23:460
179699570,3rtkit-daemon1795-21rtkit-daemon21:30:460
11882492570,4sleep10-21swapper/120:30:141
179699560,3rtkit-daemon1795-21rtkit-daemon21:49:160
179699550,4rtkit-daemon1795-21rtkit-daemon22:54:341
179699540,4rtkit-daemon1795-21rtkit-daemon20:49:290
179699540,3rtkit-daemon1795-21rtkit-daemon20:10:001
179699530,5rtkit-daemon1795-21rtkit-daemon22:56:030
179699520,4rtkit-daemon1795-21rtkit-daemon22:16:490
179699520,4rtkit-daemon1795-21rtkit-daemon00:14:320
179699520,3rtkit-daemon1795-21rtkit-daemon19:25:570
179699510,3rtkit-daemon1795-21rtkit-daemon20:17:170
179699500,22rtkit-daemon1155668-21cyclictest00:29:520
179699470,4rtkit-daemon1795-21rtkit-daemon00:31:380
179699470,19rtkit-daemon1795-21rtkit-daemon23:59:320
179699470,18rtkit-daemon1795-21rtkit-daemon23:23:100
179699460,3rtkit-daemon1795-21rtkit-daemon22:09:390
179699460,19rtkit-daemon1795-21rtkit-daemon22:48:370
179699420,16rtkit-daemon1795-21rtkit-daemon19:40:500
179699410,3rtkit-daemon0-21swapper/000:25:000
179699410,14rtkit-daemon0-21swapper/122:37:390
179699400,3rtkit-daemon0-21swapper/119:15:301
1155676994037,1cyclictest1277774-21ssh22:45:281
179699390,4rtkit-daemon0-21swapper/020:42:540
179699380,5rtkit-daemon1197288-21mailstats20:50:230
1155676993730,5cyclictest1219451-21ssh21:28:521
179699360,3rtkit-daemon0-21swapper/000:04:560
179699330,4rtkit-daemon1795-21rtkit-daemon23:16:180
179699330,4rtkit-daemon0-21swapper/020:43:181
179699330,3rtkit-daemon0-21swapper/023:22:551
179699330,3rtkit-daemon0-21swapper/021:19:201
179699330,3rtkit-daemon0-21swapper/020:51:411
1155672993315,11cyclictest1186163-21apt-get20:25:140
179699320,4rtkit-daemon1795-21rtkit-daemon22:32:101
179699320,4rtkit-daemon1795-21rtkit-daemon21:52:361
179699320,4rtkit-daemon0-21swapper/020:55:421
179699320,3rtkit-daemon0-21swapper/022:06:351
179699320,3rtkit-daemon0-21swapper/019:10:191
179699320,3rtkit-daemon0-21swapper/000:12:181
1155672993128,2cyclictest66950irq/132-enp2s023:46:170
179699300,3rtkit-daemon1795-21rtkit-daemon22:11:321
179699300,3rtkit-daemon1795-21rtkit-daemon22:03:271
179699300,3rtkit-daemon0-21swapper/121:05:310
179699300,3rtkit-daemon0-21swapper/100:35:270
179699300,3rtkit-daemon0-21swapper/020:48:501
179699300,3rtkit-daemon0-21swapper/000:32:181
179699300,3rtkit-daemon0-21swapper/000:25:051
179699300,3rtkit-daemon0-21swapper/000:03:131
179699290,4rtkit-daemon1795-21rtkit-daemon23:03:060
179699290,3rtkit-daemon1795-21rtkit-daemon21:59:561
179699290,3rtkit-daemon0-21swapper/023:57:211
179699290,3rtkit-daemon0-21swapper/023:17:131
179699290,3rtkit-daemon0-21swapper/021:00:031
179699290,3rtkit-daemon0-21swapper/000:09:261
1155672992926,2cyclictest66950irq/132-enp2s021:36:250
179699280,3rtkit-daemon0-21swapper/022:15:341
1155676992826,1cyclictest0-21swapper/123:06:051
179699270,3rtkit-daemon0-21swapper/021:10:321
179699260,3rtkit-daemon1795-21rtkit-daemon22:22:280
179699260,3rtkit-daemon0-21swapper/121:02:090
179699260,3rtkit-daemon0-21swapper/000:21:421
179699260,22rtkit-daemon893-21snmpd22:11:260
179699260,22rtkit-daemon892-21thermald23:26:150
115567699260,6cyclictest0-21swapper/100:38:221
115567299263,17cyclictest1261638-21apt-get22:25:140
179699250,4rtkit-daemon1795-21rtkit-daemon23:13:211
179699250,3rtkit-daemon0-21swapper/019:50:571
179699250,20rtkit-daemon892-21thermald19:20:440
179699250,1rtkit-daemon1795-21rtkit-daemon21:30:541
179699250,1rtkit-daemon1795-21rtkit-daemon20:22:151
11671142250,6sleep11167204-21memory19:35:191
115567699252,16cyclictest1307608-21apt-get23:25:131
1155672992519,4cyclictest1177747-21seq20:00:550
1155672992513,7cyclictest66950irq/132-enp2s023:10:100
1155672992513,10cyclictest1315894-21systemctl23:35:220
179699240,20rtkit-daemon893-21snmpd20:33:410
179699240,19rtkit-daemon1795-21rtkit-daemon21:41:420
115567699242,19cyclictest1289563-21open_inodes23:00:221
115567699242,15cyclictest1202624-21apt-get21:05:131
1155676992416,6cyclictest1288182-21latency_hist23:00:011
115567699241,20cyclictest1314886-21apt-get23:35:111
115567699240,6cyclictest0-21swapper/119:56:321
115567299242,8cyclictest1180293-21apt-get20:10:120
1155672992421,2cyclictest66950irq/132-enp2s023:42:310
179699230,3rtkit-daemon1795-21rtkit-daemon19:37:500
179699230,1rtkit-daemon1795-21rtkit-daemon20:02:191
179699230,18rtkit-daemon1795-21rtkit-daemon19:16:270
1155676992316,5cyclictest1163014-21fschecks_time19:25:171
115567299232,15cyclictest1184215-21apt-get20:20:130
115567299230,12cyclictest0-21swapper/021:55:010
179699220,1rtkit-daemon1795-21rtkit-daemon22:44:110
179699220,1rtkit-daemon1795-21rtkit-daemon21:24:291
179699220,1rtkit-daemon1795-21rtkit-daemon21:19:070
179699220,1rtkit-daemon1795-21rtkit-daemon20:36:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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