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2026-09-07 - 03:12
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7.osadl.org (updated Mon Sep 07, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
428211411,35sleep1430-21ntp_states19:05:231
720211111,73sleep2800-21unixbench_multi19:05:332
1408991113,95cyclictest20013-21chrt22:20:103
13939910726,46cyclictest0-21swapper/023:13:030
3080321000,7sleep10-21swapper/122:36:331
1402999047,32cyclictest3335-21basename00:29:442
1393998927,21cyclictest22425-21seq00:07:560
1398998867,12cyclictest0-21swapper/119:59:441
1402998772,10cyclictest1381-21cyclictest23:15:232
1393998628,23cyclictest1021-21seq21:50:010
1393998628,23cyclictest1021-21seq21:50:010
1393998628,17cyclictest18140-21seq19:59:590
1393998626,20cyclictest359-21snmpd20:32:230
1393998621,26cyclictest23692-21ssh00:09:580
1393998527,19cyclictest12253-21seq23:50:430
1393998526,29cyclictest14004-21seq21:18:360
1393998524,27cyclictest9097-21seq22:02:210
1393998524,27cyclictest9097-21seq22:02:210
1393998524,23cyclictest0-21swapper/022:21:450
1398998454,20cyclictest5302-21apt-get21:00:511
1393998430,24cyclictest24432-21seq23:19:390
1393998425,26cyclictest784-21seq23:33:160
1393998424,26cyclictest17142-21runrttasks23:06:470
1393998422,23cyclictest0-21swapper/000:34:060
1393998422,23cyclictest0-21swapper/000:34:060
1393998329,22cyclictest26497-21ssh21:38:470
1393998329,22cyclictest26497-21ssh21:38:470
1393998329,19cyclictest28590-21kworker/u17:1+xprtiod00:37:260
1393998323,25cyclictest0-21swapper/021:33:030
1393998323,21cyclictest0-21swapper/019:54:570
1393998316,29cyclictest29499-21runrttasks23:26:360
1393998316,29cyclictest29499-21runrttasks23:26:360
1402998254,19cyclictest31278-21fschecks_count23:30:072
1393998226,20cyclictest10064-21runrttasks23:48:070
1393998224,22cyclictest2912-21seq20:51:390
1393998222,25cyclictest0-21swapper/023:56:140
1393998221,25cyclictest0-21swapper/022:36:400
1402998159,16cyclictest1381-21cyclictest21:40:232
1398998161,14cyclictest19944-21kworker/u17:3-xprtiod22:10:101
1393998132,40cyclictest13109-21modprobe22:09:430
1393998127,21cyclictest12735-21seq19:41:120
1393998126,22cyclictest27241-21seq20:25:590
1393998126,21cyclictest25623-21seq20:20:490
1393998125,22cyclictest11068-21seq19:35:460
1393998125,21cyclictest2670-21seq19:12:000
1393998124,20cyclictest343-21runrttasks21:02:320
1393998124,20cyclictest0-21swapper/023:01:280
1393998124,20cyclictest0-21swapper/023:01:280
1393998123,26cyclictest8127-21seq21:08:430
1393998123,26cyclictest8127-21seq21:08:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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