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2026-08-24 - 13:51
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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 rack6slot0.osadl.org (updated Mon Aug 24, 2026 01:03:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2644099241237,2cyclictest0-21swapper/2600:15:1519
2644099241237,2cyclictest0-21swapper/2600:15:1519
2644099241237,2cyclictest0-21swapper/2600:15:1519
2641099224216,6cyclictest0-21swapper/200:30:1912
2641099224216,6cyclictest0-21swapper/200:30:1912
2641099224216,6cyclictest0-21swapper/200:30:1812
2643499217200,14cyclictest32585-21kworker/u81:2+events_unbound23:18:2116
2643499217200,14cyclictest32585-21kworker/u81:2+events_unbound23:18:2116
2643499217200,14cyclictest32585-21kworker/u81:2+events_unbound23:18:2116
2643099211139,69cyclictest373-21kswapd100:11:1711
2643099211139,69cyclictest373-21kswapd100:11:1711
2643099211139,69cyclictest373-21kswapd100:11:1711
2641099209196,6cyclictest0-21swapper/200:11:3812
2641099209196,6cyclictest0-21swapper/200:11:3812
2641099209196,6cyclictest0-21swapper/200:11:3812
2642999208205,2cyclictest0-21swapper/1800:15:5910
2642999208205,2cyclictest0-21swapper/1800:15:5910
2642999208205,2cyclictest0-21swapper/1800:15:5810
2641099204191,5cyclictest0-21swapper/221:12:0812
2641099204191,5cyclictest0-21swapper/221:12:0812
2641099204191,5cyclictest0-21swapper/221:12:0812
2641099202185,11cyclictest0-21swapper/222:00:1312
2641099202185,11cyclictest0-21swapper/222:00:1212
2641099202185,11cyclictest0-21swapper/222:00:1212
2641099200189,8cyclictest17756-21systemd22:28:4412
2641099200189,8cyclictest17756-21systemd22:28:4312
2641999199187,10cyclictest0-21swapper/923:59:3839
2641999199187,10cyclictest0-21swapper/923:59:3739
2641999199187,10cyclictest0-21swapper/923:59:3739
2641099199187,9cyclictest0-21swapper/200:26:3112
2641099199187,9cyclictest0-21swapper/200:26:3012
2641099197192,3cyclictest0-21swapper/200:15:2012
2641099197192,3cyclictest0-21swapper/200:15:2012
2641099197192,3cyclictest0-21swapper/200:15:2012
2641099196183,8cyclictest0-21swapper/223:05:0112
2641099196183,8cyclictest0-21swapper/223:05:0112
2641099193185,4cyclictest0-21swapper/222:15:5012
2641099193185,4cyclictest0-21swapper/222:15:5012
2641099193177,8cyclictest0-21swapper/200:23:3712
2641099193177,8cyclictest0-21swapper/200:23:3612
26409991931,185cyclictest0-21swapper/100:10:191
26409991931,185cyclictest0-21swapper/100:10:191
26409991931,185cyclictest0-21swapper/100:10:191
2642399192170,18cyclictest0-21swapper/1322:14:015
2642399192170,18cyclictest0-21swapper/1322:14:015
2641099192183,7cyclictest0-21swapper/220:26:2912
2641099192183,7cyclictest0-21swapper/220:26:2912
2641099191186,4cyclictest0-21swapper/222:31:2812
2641099191186,4cyclictest0-21swapper/222:31:2712
2641099191184,5cyclictest0-21swapper/222:43:2712
2641099191184,5cyclictest0-21swapper/222:43:2612
2641099191179,10cyclictest0-21swapper/220:10:1712
2641099191179,10cyclictest0-21swapper/220:10:1712
2641299190177,10cyclictest0-21swapper/323:41:4923
2641299190177,10cyclictest0-21swapper/323:41:4923
2641299190177,10cyclictest0-21swapper/323:41:4923
2641099190185,4cyclictest0-21swapper/222:50:0112
2641099190185,4cyclictest0-21swapper/222:50:0112
2641099190185,4cyclictest0-21swapper/222:50:0112
2642399189160,26cyclictest0-21swapper/1322:53:405
2642399189160,26cyclictest0-21swapper/1322:53:395
2642399189160,26cyclictest0-21swapper/1322:53:395
2642399189146,31cyclictest0-21swapper/1322:20:245
2642399189146,31cyclictest0-21swapper/1322:20:235
2641699189172,8cyclictest0-21swapper/619:30:2536
2641699189172,8cyclictest0-21swapper/619:30:2536
2641099188182,4cyclictest0-21swapper/223:53:1212
2641099188182,4cyclictest0-21swapper/223:53:1212
2644599187120,60cyclictest4407-21CPU25
2644599187120,60cyclictest4407-21CPU25
2644599187120,60cyclictest4407-21CPU25
2643199187164,19cyclictest37354-21CPU13
2643199187164,19cyclictest37354-21CPU13
2643199187164,19cyclictest37354-21CPU13
2641099187180,5cyclictest0-21swapper/200:37:2712
2641099187180,5cyclictest0-21swapper/200:37:2712
2641099187180,5cyclictest0-21swapper/200:37:2712
2641099186180,4cyclictest0-21swapper/223:27:2612
2641099186180,4cyclictest0-21swapper/223:27:2512
2641099186179,5cyclictest0-21swapper/223:21:5912
2641099186179,5cyclictest0-21swapper/223:21:5912
2641099186165,18cyclictest0-21swapper/222:21:3112
2641099186165,18cyclictest0-21swapper/222:21:3112
26409991861,178cyclictest0-21swapper/121:15:221
26409991861,178cyclictest0-21swapper/121:15:211
2644099185150,33cyclictest372-21kswapd000:32:0519
2644099185150,33cyclictest372-21kswapd000:32:0519
2644099185150,33cyclictest372-21kswapd000:32:0519
2641799185181,2cyclictest0-21swapper/722:05:1937
2641799185181,2cyclictest0-21swapper/722:05:1937
2641799185181,2cyclictest0-21swapper/722:05:1937
2641099185180,4cyclictest0-21swapper/219:35:2412
2641099185180,4cyclictest0-21swapper/219:35:2412
2641099185177,6cyclictest0-21swapper/221:52:0012
2641099185177,6cyclictest0-21swapper/221:52:0012
2641099185177,6cyclictest0-21swapper/221:51:5912
26409991851,118cyclictest0-21swapper/123:45:171
26409991851,118cyclictest0-21swapper/123:45:171
2641099184175,7cyclictest0-21swapper/223:47:2212
2641099184175,7cyclictest0-21swapper/223:47:2212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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