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2026-04-21 - 03:40
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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 Tue Apr 21, 2026 01:01:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2228599218214,2cyclictest0-21swapper/2520:10:1218
2228599218214,2cyclictest0-21swapper/2520:10:1218
2229499212206,4cyclictest0-21swapper/3223:23:0826
2229499212206,4cyclictest0-21swapper/3223:23:0726
2225999207201,4cyclictest0-21swapper/420:50:2734
2225999207201,4cyclictest0-21swapper/420:50:2734
2227799206200,4cyclictest0-21swapper/1800:27:1610
2227799206200,4cyclictest0-21swapper/1800:27:1610
2225999201191,7cyclictest0-21swapper/420:15:1334
2225999201191,7cyclictest0-21swapper/420:15:1334
2229499200194,4cyclictest0-21swapper/3222:35:2326
2229499200194,4cyclictest0-21swapper/3222:35:2226
2229499200193,5cyclictest0-21swapper/3221:25:0726
2229499199190,5cyclictest3543-21CPU26
2229499199190,5cyclictest3543-21CPU26
2229499198191,4cyclictest24605-21bash21:33:3126
2229499198191,4cyclictest24605-21bash21:33:3126
2225799198195,2cyclictest0-21swapper/220:10:1412
2225799198195,2cyclictest0-21swapper/220:10:1412
2229499195186,5cyclictest37257-21qemu-system-x8622:30:2026
2229499195186,5cyclictest37257-21qemu-system-x8622:30:2026
2229499195186,5cyclictest37257-21qemu-system-x8622:30:2026
2229499195185,7cyclictest36128-21systemd22:21:5526
2229499195185,7cyclictest36128-21systemd22:21:5526
2225999195189,4cyclictest17484-21nfsd20:25:0134
2229499194189,4cyclictest0-21swapper/3221:10:0726
2229499194189,4cyclictest0-21swapper/3221:10:0726
2229499194184,8cyclictest0-21swapper/3223:05:2026
2229499194184,8cyclictest0-21swapper/3223:05:2026
2229499193185,6cyclictest0-21swapper/3223:35:2526
2229499193185,6cyclictest0-21swapper/3223:35:2426
2229499193185,6cyclictest0-21swapper/3223:35:2426
2225999193175,10cyclictest0-21swapper/420:40:0134
2225999193175,10cyclictest0-21swapper/420:40:0134
2229499191181,8cyclictest1384-21rs:main26
2229499191181,8cyclictest1384-21rs:main26
2229499191180,8cyclictest0-21swapper/3222:54:1826
2229499191180,8cyclictest0-21swapper/3222:54:1826
2229499191180,8cyclictest0-21swapper/3222:54:1826
2229499191178,5cyclictest0-21swapper/3222:42:2726
2229499191178,5cyclictest0-21swapper/3222:42:2726
2229499191172,15cyclictest0-21swapper/3222:06:2926
2229499191172,15cyclictest0-21swapper/3222:06:2926
2225999191187,2cyclictest0-21swapper/421:00:1434
2225999191187,2cyclictest0-21swapper/421:00:1434
2229499190183,5cyclictest0-21swapper/3219:30:3726
2225999189184,3cyclictest0-21swapper/422:29:4534
2225999189184,3cyclictest0-21swapper/422:29:4534
2229499188182,4cyclictest0-21swapper/3221:37:0326
2229499188182,4cyclictest0-21swapper/3221:37:0326
2227799188171,14cyclictest0-21swapper/1800:30:3510
2227799188171,14cyclictest0-21swapper/1800:30:3410
2229499187177,8cyclictest0-21swapper/3222:46:3526
2229499187177,8cyclictest0-21swapper/3222:46:3526
2225999187157,11cyclictest171rcu_preempt21:54:1134
2225999187157,11cyclictest171rcu_preempt21:54:1134
2225699187161,6cyclictest171rcu_preempt21:23:291
2225699187161,6cyclictest171rcu_preempt21:23:281
2229799186173,11cyclictest0-21swapper/3523:40:0129
2229799186173,11cyclictest0-21swapper/3523:40:0129
2229799186173,11cyclictest0-21swapper/3523:40:0129
2225999186161,7cyclictest171rcu_preempt19:50:2034
2225999186161,7cyclictest171rcu_preempt19:50:2034
2229499185162,13cyclictest0-21swapper/3220:06:4626
2229499185162,13cyclictest0-21swapper/3220:06:4626
2225999185173,10cyclictest0-21swapper/420:30:1434
2225699185110,71cyclictest4407-21CPU1
2225699185110,71cyclictest4407-21CPU1
2225999184173,9cyclictest0-21swapper/421:00:0234
2229799183170,10cyclictest0-21swapper/3523:06:4529
2229799183170,10cyclictest0-21swapper/3523:06:4529
2229499183177,5cyclictest0-21swapper/3222:25:2126
2229499183177,5cyclictest0-21swapper/3222:25:2126
2229499183174,7cyclictest0-21swapper/3223:10:2626
2229499183174,7cyclictest0-21swapper/3223:10:2626
2225999183176,4cyclictest0-21swapper/420:25:1434
2225999183175,5cyclictest0-21swapper/420:00:2734
2225999183175,5cyclictest0-21swapper/420:00:2734
2225699183166,15cyclictest0-21swapper/122:42:371
2225699183166,15cyclictest0-21swapper/122:42:371
2225699183165,6cyclictest0-21swapper/121:34:341
2225699183165,6cyclictest0-21swapper/121:34:341
2225699183148,23cyclictest171rcu_preempt19:19:461
2225699183148,23cyclictest171rcu_preempt19:19:461
2229499182172,8cyclictest0-21swapper/3200:22:2326
2229499182172,8cyclictest0-21swapper/3200:22:2326
22287991821,85cyclictest0-21swapper/2723:20:1520
22287991821,85cyclictest0-21swapper/2723:20:1520
2228799182145,34cyclictest0-21swapper/2723:56:2220
2228799182145,34cyclictest0-21swapper/2723:56:2120
2225999182171,9cyclictest0-21swapper/420:13:4934
2225999182171,9cyclictest0-21swapper/420:13:4934
2225699182166,9cyclictest0-21swapper/122:34:091
2225699182166,9cyclictest0-21swapper/122:34:091
2225699182166,9cyclictest0-21swapper/122:34:091
2225699182156,13cyclictest0-21swapper/123:12:371
2225699182156,13cyclictest0-21swapper/123:12:371
2229499181176,3cyclictest0-21swapper/3223:15:1926
2229499181176,3cyclictest0-21swapper/3223:15:1926
2229499181173,6cyclictest0-21swapper/3223:35:0126
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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