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2026-04-18 - 17:36
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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 rack7slot1.osadl.org (updated Sat Apr 18, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29654211753,58sleep30-21swapper/307:09:273
2361321140,1sleep217469-21stress09:22:072
29671211051,54sleep00-21swapper/007:09:400
2965329166,20sleep20-21swapper/207:09:262
2944728254,23sleep10-21swapper/107:06:481
2980499523,29cyclictest17469-21stress12:30:202
2980499502,33cyclictest30582-21aten2_r7power_e09:40:112
2980599495,27cyclictest0-21swapper/307:15:193
2980499493,26cyclictest17467-21stress12:25:322
2980499492,30cyclictest17469-21stress10:40:112
2980499483,33cyclictest17467-21stress09:55:402
2980499483,30cyclictest1899-21runrttasks10:11:482
2980499483,30cyclictest1899-21runrttasks10:11:482
2980499483,28cyclictest30416-21aten2_r7power_p10:55:132
2980499472,30cyclictest1899-21runrttasks11:48:562
2980499472,30cyclictest1899-21runrttasks11:48:562
29802994716,21cyclictest0-21swapper/009:46:010
29802994714,24cyclictest0-21swapper/011:15:310
2980499462,25cyclictest17467-21stress10:30:172
2980299465,25cyclictest0-21swapper/009:10:130
2980499453,28cyclictest4981-21basename07:25:132
29804994518,24cyclictest0-21swapper/209:20:022
2980499443,27cyclictest15306-21runrttasks07:49:152
2980499443,25cyclictest17467-21stress12:00:272
2980499443,25cyclictest17467-21stress12:00:262
2980499442,26cyclictest17473-21iperf11:35:252
2980499442,25cyclictest17467-21stress10:45:462
2980499442,25cyclictest17467-21stress10:45:462
2980599435,16cyclictest0-21swapper/307:35:283
2980499433,31cyclictest1800-21wc07:15:232
2980499433,26cyclictest20561-21/usr/sbin/munin08:00:162
2980499432,24cyclictest17469-21stress12:05:142
2980499432,24cyclictest17469-21stress11:30:382
2980299436,25cyclictest0-21swapper/010:20:010
29802994327,14cyclictest0-21swapper/010:35:150
2980499425,29cyclictest0-21swapper/208:32:342
2980499423,30cyclictest1899-21runrttasks08:25:322
2980499423,27cyclictest31751-21sshd07:13:012
2980499423,25cyclictest25004-21wc08:10:172
2980499422,25cyclictest1899-21runrttasks09:39:442
2980499422,25cyclictest1899-21runrttasks09:39:442
2980499422,25cyclictest17467-21stress10:28:442
2980499422,24cyclictest17467-21stress11:28:562
2980299428,19cyclictest0-21swapper/011:45:020
29802994225,15cyclictest0-21swapper/011:10:310
29802994216,23cyclictest0-21swapper/012:20:130
29802994214,17cyclictest11748-21df07:40:140
29802994214,17cyclictest11748-21df07:40:140
29802994214,16cyclictest17467-21stress11:37:020
29802994212,27cyclictest0-21swapper/010:22:300
29805994122,17cyclictest0-21swapper/312:21:213
2980499413,26cyclictest8497-21runrttasks08:46:142
2980499413,26cyclictest6644-21runrttasks08:44:532
2980499413,26cyclictest23742-21runrttasks08:07:272
2980499413,26cyclictest17361-21runrttasks07:53:012
2980499413,25cyclictest4295-21sshd07:21:022
2980499413,24cyclictest17469-21stress10:37:062
2980299412,33cyclictest0-21swapper/008:20:180
29802994116,15cyclictest377-21sshd08:30:110
2980599405,18cyclictest0-21swapper/307:30:153
2980599405,17cyclictest0-21swapper/308:45:123
2980599404,18cyclictest0-21swapper/308:50:323
2980599404,18cyclictest0-21swapper/308:00:343
2980599404,18cyclictest0-21swapper/307:14:023
2980499405,22cyclictest0-21swapper/208:25:012
2980499403,25cyclictest27947-21runrttasks08:16:222
2980499403,25cyclictest12999-21runrttasks07:42:252
2980499403,25cyclictest12999-21runrttasks07:42:252
2980299406,29cyclictest0-21swapper/008:10:280
2980299405,29cyclictest0-21swapper/008:05:190
29802994026,12cyclictest0-21swapper/010:10:140
29802994026,12cyclictest0-21swapper/010:10:130
29802994023,15cyclictest0-21swapper/011:45:250
29802994023,15cyclictest0-21swapper/011:45:250
29802994016,15cyclictest17469-21stress10:50:280
29802994015,22cyclictest0-21swapper/010:06:300
29802994013,17cyclictest0-21swapper/011:50:160
2980599396,30cyclictest17467-21stress10:05:283
2980599395,32cyclictest0-21swapper/308:32:483
2980599395,18cyclictest0-21swapper/307:45:203
2980599395,17cyclictest0-21swapper/308:57:053
2980599395,17cyclictest0-21swapper/307:55:113
2980599394,19cyclictest0-21swapper/308:05:153
2980599394,18cyclictest0-21swapper/308:35:113
2980599394,17cyclictest0-21swapper/308:28:033
2980499393,29cyclictest10683-21runrttasks08:51:382
2980299397,25cyclictest0-21swapper/008:55:230
29802993920,17cyclictest0-21swapper/009:20:220
29802993915,21cyclictest0-21swapper/009:28:140
29802993913,13cyclictest17467-21stress12:05:240
29802993911,25cyclictest0-21swapper/012:37:300
2980599385,31cyclictest0-21swapper/308:40:163
2980599385,18cyclictest0-21swapper/307:40:153
2980599385,18cyclictest0-21swapper/307:40:153
2980599385,18cyclictest0-21swapper/307:25:133
2980599385,18cyclictest0-21swapper/307:20:213
2980599385,17cyclictest0-21swapper/309:05:113
2980599385,17cyclictest0-21swapper/309:05:113
2980599385,17cyclictest0-21swapper/308:15:013
2980599385,17cyclictest0-21swapper/308:12:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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