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2026-09-07 - 05:29
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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 100 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
140899804,39cyclictest0-21swapper/320:59:563
1398998065,8cyclictest0-21swapper/123:45:171
1398998056,15cyclictest5138-21fschecks_time23:40:071
1398998056,15cyclictest5138-21fschecks_time23:40:071
1393998027,19cyclictest21018-21seq20:09:020
1393998025,21cyclictest15930-21seq19:51:000
1393998025,21cyclictest15930-21seq19:51:000
1393998025,20cyclictest4627-21seq20:58:070
1393998024,26cyclictest14384-21seq19:46:470
1393998024,20cyclictest343-21runrttasks20:11:300
1393998023,23cyclictest24101-21seq20:17:170
1393998023,21cyclictest17211-21seq23:59:540
1393998021,22cyclictest0-21swapper/019:29:370
1393998018,24cyclictest0-21swapper/023:44:310
1393998018,24cyclictest0-21swapper/023:44:310
1393997926,20cyclictest32214-21seq20:42:400
1393997926,20cyclictest32214-21seq20:42:400
1393997923,26cyclictest0-21swapper/022:32:430
1393997921,22cyclictest0-21swapper/022:19:220
1393997919,22cyclictest0-21swapper/022:13:390
1402997856,15cyclictest29118-21kworker/u18:2-events_unbound19:59:442
1402997851,20cyclictest23196-21kworker/u19:1+nfsiod21:39:042
1402997851,20cyclictest23196-21kworker/u19:1+nfsiod21:39:042
1402997830,14cyclictest0-21swapper/221:49:392
1398997857,15cyclictest19877-21kworker/u19:0+events_unbound21:49:441
1393997842,30cyclictest0-21swapper/019:09:490
1393997827,20cyclictest19995-21seq21:28:000
1393997827,20cyclictest19995-21seq21:28:000
1393997827,20cyclictest16915-21seq21:23:020
1393997824,19cyclictest24735-21seq22:26:560
1393997824,19cyclictest24735-21seq22:26:560
1393997823,17cyclictest7922-21seq22:52:080
1393997822,23cyclictest31028-21runrttasks00:20:250
1393997821,21cyclictest0-21swapper/019:30:510
1402997756,15cyclictest29622-21sh00:19:472
1402997756,15cyclictest29622-21sh00:19:472
1398997743,23cyclictest12980-21kworker/u18:1+nfsiod23:09:471
1393997751,21cyclictest0-21swapper/023:19:570
1393997728,40cyclictest11205-21ssh22:57:350
1393997724,23cyclictest1961-21seq22:42:480
1393997722,26cyclictest0-21swapper/021:49:120
1393997722,22cyclictest0-21swapper/019:17:380
1393997722,22cyclictest0-21swapper/019:17:380
1393997721,19cyclictest0-21swapper/000:26:160
1393997720,22cyclictest0-21swapper/021:54:510
1402997658,10cyclictest0-21swapper/223:55:192
1398997658,12cyclictest12490-21sendmail_mailqu21:15:351
1398997657,14cyclictest12366-21sh22:59:571
1398997657,14cyclictest12366-21sh22:59:571
1398997654,14cyclictest200-21systemd-journal21:36:461
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