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2026-04-23 - 13:38
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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 Thu Apr 23, 2026 01:01:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16092992222,4cyclictest4407-21CPU10
16092992222,4cyclictest4407-21CPU10
16092992222,4cyclictest4407-21CPU10
1610599212205,5cyclictest0-21swapper/2921:45:1922
1610599212205,5cyclictest0-21swapper/2921:45:1822
1610599212205,5cyclictest0-21swapper/2921:45:1822
1608999212205,3cyclictest3542-21CPU7
1608999212205,3cyclictest3542-21CPU7
1610599211203,5cyclictest755-21systemd-journal21:18:2622
1610599211203,5cyclictest755-21systemd-journal21:18:2622
16092992110,7cyclictest1384-21rs:main10
16092992110,7cyclictest1384-21rs:main10
1610599210204,4cyclictest0-21swapper/2919:35:1322
1610599210204,4cyclictest0-21swapper/2919:35:1322
1610599207201,4cyclictest0-21swapper/2922:13:3322
1610599207201,4cyclictest0-21swapper/2922:13:3322
1610599207199,6cyclictest0-21swapper/2900:20:1322
1610599207199,6cyclictest0-21swapper/2900:20:1322
1610599207199,6cyclictest0-21swapper/2900:20:1222
1610599207198,5cyclictest3542-21CPU22
1610599207198,5cyclictest3542-21CPU22
1610599207198,5cyclictest3542-21CPU22
1610599204198,2cyclictest4408-21CPU22
1610599204198,2cyclictest4408-21CPU22
1610599204197,5cyclictest1367-21dbus-daemon00:11:0122
1610599204197,5cyclictest1367-21dbus-daemon00:11:0022
1610599204196,6cyclictest5849-21systemd-cgroups00:15:1622
1610599204196,6cyclictest5849-21systemd-cgroups00:15:1622
160999920463,138cyclictest0-21swapper/2320:10:1416
160999920463,138cyclictest0-21swapper/2320:10:1416
1610599202195,4cyclictest0-21swapper/2900:30:2022
1610599202195,4cyclictest0-21swapper/2900:30:1922
1610599201193,6cyclictest8182-21cups-browsed21:39:3522
1610599201193,6cyclictest8182-21cups-browsed21:39:3522
1610599201192,6cyclictest8887-21sshd21:24:5122
1610599201192,6cyclictest8887-21sshd21:24:5022
1610599200195,3cyclictest755-21systemd-journal21:10:1922
1610599200195,3cyclictest755-21systemd-journal21:10:1922
1611399198192,4cyclictest0-21swapper/3621:19:3930
1611399198192,4cyclictest0-21swapper/3621:19:3930
1610599198192,5cyclictest0-21swapper/2921:45:0022
1610599198192,5cyclictest0-21swapper/2921:45:0022
1610599198192,5cyclictest0-21swapper/2921:45:0022
1611299197189,6cyclictest0-21swapper/3500:02:1429
1611299197189,6cyclictest0-21swapper/3500:02:1429
1610599197177,13cyclictest17484-21nfsd23:40:5522
1610599197177,13cyclictest17484-21nfsd23:40:5522
1610599196181,12cyclictest0-21swapper/2922:00:1522
1610599196181,12cyclictest0-21swapper/2922:00:1422
1610599196181,12cyclictest0-21swapper/2922:00:1422
1611199195192,2cyclictest0-21swapper/3422:05:2028
1611199195192,2cyclictest0-21swapper/3422:05:2028
1611199195192,2cyclictest0-21swapper/3422:05:2028
1610599195189,4cyclictest1442-21gdbus23:21:4122
1610599195189,4cyclictest1442-21gdbus23:21:4122
1610599195189,4cyclictest1442-21gdbus23:21:4122
1611399194190,2cyclictest0-21swapper/3600:05:1530
1611399194190,2cyclictest0-21swapper/3600:05:1530
1611399194186,6cyclictest0-21swapper/3621:55:1130
1611399194186,6cyclictest0-21swapper/3621:55:1130
1611399193182,9cyclictest0-21swapper/3623:20:1330
1611399193182,9cyclictest0-21swapper/3623:20:1330
1611399193182,9cyclictest0-21swapper/3623:20:1330
1610599193188,4cyclictest0-21swapper/2900:07:1022
1610599193188,4cyclictest0-21swapper/2900:07:1022
1610599193188,3cyclictest0-21swapper/2920:06:0422
1610599193188,3cyclictest0-21swapper/2920:06:0422
1610999192185,5cyclictest0-21swapper/3323:16:2427
1610999192185,5cyclictest0-21swapper/3323:16:2427
1611399191182,5cyclictest4407-21CPU30
1611399191182,5cyclictest4407-21CPU30
1611299191179,3cyclictest0-21swapper/3523:11:2429
1611299191179,3cyclictest0-21swapper/3523:11:2429
1611299191179,3cyclictest0-21swapper/3523:11:2329
1610599191186,4cyclictest0-21swapper/2900:35:2322
1610599191186,4cyclictest0-21swapper/2900:35:2222
1610599191184,5cyclictest0-21swapper/2921:33:3422
1610599191184,5cyclictest0-21swapper/2921:33:3422
1610599191178,10cyclictest0-21swapper/2920:35:2222
1610599191178,10cyclictest0-21swapper/2920:35:2122
16092991910,3cyclictest2459-21CPU10
16092991910,3cyclictest2459-21CPU10
1611399190184,4cyclictest0-21swapper/3623:18:4930
1611399190184,4cyclictest0-21swapper/3623:18:4830
1611399190183,5cyclictest0-21swapper/3620:40:1530
1611399190183,5cyclictest0-21swapper/3620:40:1430
1610599190184,4cyclictest0-21swapper/2900:26:0922
1610599190184,4cyclictest0-21swapper/2900:26:0822
1610999189183,4cyclictest0-21swapper/3322:30:2127
1610999189183,4cyclictest0-21swapper/3322:30:2027
1610599189182,5cyclictest0-21swapper/2919:45:0122
1610599189182,5cyclictest0-21swapper/2919:45:0022
1610599189174,11cyclictest0-21swapper/2921:26:0622
1610599189174,11cyclictest0-21swapper/2921:26:0522
1610599188183,4cyclictest0-21swapper/2919:56:1022
1610599188183,4cyclictest0-21swapper/2919:56:1022
1610599188182,4cyclictest0-21swapper/2900:02:2022
1610599188182,4cyclictest0-21swapper/2900:02:1922
1610599188181,5cyclictest0-21swapper/2923:57:4422
1610599188181,5cyclictest0-21swapper/2923:57:4422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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