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2026-06-02 - 21:48
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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 rackcslot8.osadl.org (updated Tue Jun 02, 2026 12:49:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
357599386188,1cyclictest151rcu_preempt09:43:5716
327072332324,6sleep100-21swapper/1007:05:192
35069926870,1cyclictest151rcu_preempt11:12:5527
3575992076,183cyclictest0-21swapper/2310:50:1416
330891202194,6phc2sys0-21swapper/207:09:4712
3575991620,119cyclictest0-21swapper/2308:55:4416
3575991620,119cyclictest0-21swapper/2308:55:4416
350299159158,1cyclictest151rcu_preempt10:05:2226
35759915854,97cyclictest151rcu_preempt12:17:5216
34869915619,93cyclictest0-21swapper/110:03:541
34869915619,136cyclictest0-21swapper/110:19:241
35029915048,56cyclictest0-21swapper/409:05:0026
34869915019,83cyclictest0-21swapper/109:18:281
35029914949,51cyclictest0-21swapper/409:25:2926
34869914619,72cyclictest0-21swapper/112:11:061
34869914520,90cyclictest0-21swapper/109:27:041
3575991446,83cyclictest0-21swapper/2311:47:1816
35499914349,62cyclictest0-21swapper/1608:44:518
35499914349,62cyclictest0-21swapper/1608:44:508
35239914222,85cyclictest0-21swapper/907:27:2731
3273911410,133ptp4l0-21swapper/107:09:411
3561991400,79cyclictest0-21swapper/1907:15:2011
35029914029,80cyclictest0-21swapper/408:50:1526
35029914029,80cyclictest0-21swapper/408:50:1426
35499913929,64cyclictest0-21swapper/1607:45:128
35499913929,64cyclictest0-21swapper/1607:45:128
35499913929,63cyclictest0-21swapper/1610:51:438
3556991380,81cyclictest0-21swapper/1810:00:2610
35499913829,66cyclictest0-21swapper/1611:15:028
3575991375,98cyclictest0-21swapper/2309:30:2116
35499913731,64cyclictest0-21swapper/1611:07:158
3523991370,85cyclictest0-21swapper/909:10:1931
34869913719,68cyclictest0-21swapper/112:18:351
35759913641,60cyclictest0-21swapper/2310:12:1616
3561991360,85cyclictest0-21swapper/1911:30:1511
35569913620,53cyclictest0-21swapper/1810:07:5510
35499913644,54cyclictest0-21swapper/1608:10:088
35499913644,54cyclictest0-21swapper/1608:10:088
35499913639,60cyclictest0-21swapper/1611:11:498
35499913630,105cyclictest0-21swapper/1611:20:248
35499913629,61cyclictest0-21swapper/1610:55:308
3549991362,101cyclictest0-21swapper/1612:16:038
354299136134,1cyclictest0-21swapper/1409:30:276
35499913531,61cyclictest0-21swapper/1608:56:488
35499913531,61cyclictest0-21swapper/1608:56:488
35499913527,65cyclictest0-21swapper/1607:50:218
35499913527,65cyclictest0-21swapper/1607:50:218
35499913447,54cyclictest0-21swapper/1611:35:568
35499913429,63cyclictest0-21swapper/1610:02:218
35499913428,65cyclictest0-21swapper/1609:15:198
3542991340,83cyclictest0-21swapper/1409:37:236
35029913456,24cyclictest40-21ksoftirqd/411:42:2726
35029913427,106cyclictest0-21swapper/409:30:1526
3502991340,81cyclictest0-21swapper/408:13:3926
3502991340,81cyclictest0-21swapper/408:13:3926
35759913351,53cyclictest0-21swapper/2312:24:1816
35499913330,67cyclictest0-21swapper/1610:29:338
35499913329,64cyclictest0-21swapper/1611:35:018
35499913328,63cyclictest0-21swapper/1610:20:018
35499913323,65cyclictest0-21swapper/1610:40:198
35029913328,61cyclictest0-21swapper/408:25:2526
35029913328,61cyclictest0-21swapper/408:25:2526
3567991328,104cyclictest151rcu_preempt09:16:0314
35499913238,56cyclictest0-21swapper/1607:45:018
35499913238,56cyclictest0-21swapper/1607:45:018
35499913229,58cyclictest0-21swapper/1607:19:538
35499913224,66cyclictest0-21swapper/1612:35:128
35029913255,23cyclictest40-21ksoftirqd/410:14:2626
35569913121,70cyclictest0-21swapper/1810:58:0910
3556991310,81cyclictest0-21swapper/1810:54:5710
35759913030,67cyclictest0-21swapper/2310:06:1716
35759913029,70cyclictest0-21swapper/2310:20:3216
35759913029,69cyclictest0-21swapper/2310:19:1216
35759913028,69cyclictest0-21swapper/2309:28:5916
35679913062,7cyclictest151rcu_preempt08:49:5714
35679913062,7cyclictest151rcu_preempt08:49:5614
35499913028,62cyclictest0-21swapper/1609:36:578
35499913026,60cyclictest0-21swapper/1609:20:538
35499913016,66cyclictest0-21swapper/1611:43:198
35759912931,67cyclictest0-21swapper/2309:35:2416
35759912929,72cyclictest0-21swapper/2311:07:0216
35759912926,68cyclictest0-21swapper/2309:14:0116
35189912938,56cyclictest0-21swapper/809:51:1430
35029912911,115cyclictest151rcu_preempt09:35:4926
35759912829,61cyclictest0-21swapper/2310:57:3516
35759912828,72cyclictest0-21swapper/2311:17:5416
35759912828,66cyclictest0-21swapper/2310:02:0816
35759912825,63cyclictest0-21swapper/2312:08:4816
35569912849,62cyclictest0-21swapper/1812:34:2210
35499912829,59cyclictest0-21swapper/1609:33:278
35499912820,82cyclictest0-21swapper/1609:51:418
35349912861,66cyclictest0-21swapper/1212:05:134
35239912826,68cyclictest0-21swapper/910:28:0531
35189912834,90cyclictest0-21swapper/808:25:0130
35189912834,90cyclictest0-21swapper/808:25:0130
34869912819,82cyclictest0-21swapper/110:35:261
35759912729,70cyclictest0-21swapper/2308:34:2216
35759912729,70cyclictest0-21swapper/2308:34:2216
35759912728,69cyclictest0-21swapper/2311:37:1616
35759912726,67cyclictest0-21swapper/2311:29:4716
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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