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2026-05-15 - 20:00
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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 Fri May 15, 2026 12:49:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2583799329132,2cyclictest151rcu_preempt09:49:4314
3273913160,308ptp4l0-21swapper/107:09:361
242752217210,6sleep160-21swapper/1607:06:578
2587999192120,49cyclictest0-21swapper/2811:44:4521
257509918141,93cyclictest0-21swapper/812:24:2230
235112180169,8sleep190-21swapper/1907:05:2311
258379917719,112cyclictest0-21swapper/2112:08:0914
330891173165,6phc2sys0-21swapper/207:05:4212
25818991580,115cyclictest0-21swapper/1811:29:3710
258689915047,96cyclictest0-21swapper/2610:39:0019
25750991460,85cyclictest0-21swapper/807:35:2530
25750991460,85cyclictest0-21swapper/807:35:2530
258689914453,48cyclictest151rcu_preempt09:31:0619
258299914433,72cyclictest0-21swapper/2011:45:1213
258689914325,107cyclictest0-21swapper/2609:10:4719
257509914049,90cyclictest0-21swapper/809:25:2930
25754991390,86cyclictest0-21swapper/912:19:1231
258299913826,87cyclictest0-21swapper/2010:05:0013
258189913819,70cyclictest0-21swapper/1810:17:2810
25886991370,85cyclictest0-21swapper/2909:24:1222
258299913727,73cyclictest0-21swapper/2011:57:4513
258299913725,65cyclictest0-21swapper/2007:21:3713
257549913647,59cyclictest0-21swapper/911:30:5131
258189913528,67cyclictest0-21swapper/1811:13:0410
258689913429,90cyclictest0-21swapper/2612:16:4719
258299913425,66cyclictest0-21swapper/2009:12:0413
258189913446,61cyclictest0-21swapper/1810:01:5910
25818991341,109cyclictest0-21swapper/1809:43:0010
257069913429,97cyclictest0-21swapper/111:28:481
25873991330,103cyclictest151rcu_preempt08:25:2320
25873991330,103cyclictest151rcu_preempt08:25:2320
258189913328,71cyclictest0-21swapper/1811:07:4110
258189913327,65cyclictest0-21swapper/1810:22:4910
25818991330,80cyclictest0-21swapper/1810:05:1010
257759913328,64cyclictest0-21swapper/1210:01:084
257549913352,57cyclictest0-21swapper/908:48:0431
257549913352,57cyclictest0-21swapper/908:48:0431
257549913329,69cyclictest0-21swapper/910:00:0231
257549913327,61cyclictest0-21swapper/910:31:1331
257069913329,82cyclictest0-21swapper/109:50:281
257069913329,103cyclictest0-21swapper/111:30:071
258189913231,73cyclictest0-21swapper/1812:35:2310
258189913231,72cyclictest0-21swapper/1810:43:0710
258189913230,75cyclictest0-21swapper/1807:25:2310
258189913229,72cyclictest0-21swapper/1808:19:2010
258189913229,72cyclictest0-21swapper/1808:19:2010
258189913228,70cyclictest0-21swapper/1810:35:0710
258189913228,69cyclictest0-21swapper/1809:50:4510
257069913229,74cyclictest0-21swapper/109:43:321
257069913229,102cyclictest0-21swapper/111:59:481
257069913226,104cyclictest0-21swapper/110:37:301
25706991320,87cyclictest0-21swapper/108:12:401
25706991320,87cyclictest0-21swapper/108:12:401
258379913120,78cyclictest0-21swapper/2111:52:3914
258379913120,73cyclictest0-21swapper/2111:39:5014
258189913137,51cyclictest0-21swapper/1812:25:1210
258189913131,75cyclictest0-21swapper/1808:07:3510
258189913131,75cyclictest0-21swapper/1808:07:3510
258189913130,67cyclictest0-21swapper/1809:48:5510
258189913129,70cyclictest0-21swapper/1810:45:4810
258189913128,73cyclictest0-21swapper/1810:59:0910
258189913128,71cyclictest0-21swapper/1810:12:0710
258189913128,69cyclictest0-21swapper/1808:57:1810
258189913127,70cyclictest0-21swapper/1807:43:0110
258189913127,70cyclictest0-21swapper/1807:43:0110
258189913127,69cyclictest0-21swapper/1809:35:1510
258189913127,66cyclictest0-21swapper/1811:22:0810
258189913126,68cyclictest0-21swapper/1809:22:2610
257549913130,69cyclictest0-21swapper/909:51:4731
257549913130,67cyclictest0-21swapper/910:45:2531
257549913130,66cyclictest0-21swapper/909:46:2031
257549913127,65cyclictest0-21swapper/907:35:2531
257549913127,65cyclictest0-21swapper/907:35:2431
257069913128,81cyclictest0-21swapper/108:45:161
257069913128,81cyclictest0-21swapper/108:45:151
258189913030,71cyclictest0-21swapper/1809:25:0510
258189913028,72cyclictest0-21swapper/1812:18:0210
258189913027,70cyclictest0-21swapper/1808:24:1010
258189913027,70cyclictest0-21swapper/1808:24:1010
258189913027,68cyclictest0-21swapper/1812:22:0010
258189913027,67cyclictest0-21swapper/1807:53:1010
258189913027,67cyclictest0-21swapper/1807:53:1010
258189913027,67cyclictest0-21swapper/1807:24:1910
258189913026,72cyclictest0-21swapper/1810:30:5010
257549913040,61cyclictest0-21swapper/908:41:0831
257549913040,61cyclictest0-21swapper/908:41:0731
257549913029,71cyclictest0-21swapper/911:11:5031
257549913028,67cyclictest0-21swapper/910:05:3331
257549913027,68cyclictest0-21swapper/910:50:1231
257549913027,67cyclictest0-21swapper/911:00:0431
257549913026,70cyclictest0-21swapper/911:20:2331
257069913028,68cyclictest0-21swapper/109:20:331
257069913026,76cyclictest0-21swapper/109:33:211
258869912947,51cyclictest0-21swapper/2909:45:2322
25886991290,79cyclictest0-21swapper/2908:50:0122
25886991290,79cyclictest0-21swapper/2908:50:0022
258379912920,85cyclictest0-21swapper/2111:24:5214
2583799129125,1cyclictest151rcu_preempt09:56:0414
258189912929,72cyclictest0-21swapper/1811:47:4910
258189912929,72cyclictest0-21swapper/1810:25:2910
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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