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2026-04-27 - 02:02
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 highest latencies:
System rack4slot1.osadl.org (updated Sun Apr 26, 2026 22:26:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2622926680,2sleep012-21ksoftirqd/019:12:370
2622926680,2sleep012-21ksoftirqd/019:12:370
2946521580,3sleep10-21swapper/120:47:211
2946521580,3sleep10-21swapper/120:47:211
1291321300,2sleep1201rcuc/121:17:331
1291321300,2sleep1201rcuc/121:17:331
581621280,2sleep073-21kswapd022:17:320
581621280,2sleep073-21kswapd022:17:320
3216821280,2sleep132160-21find21:37:311
3216821280,2sleep132160-21find21:37:311
951321210,1sleep30-21swapper/321:47:313
951321210,1sleep30-21swapper/321:47:313
1272321190,3chrt0-21swapper/320:02:293
1272321190,3chrt0-21swapper/320:02:293
952021110,1sleep012-21ksoftirqd/021:47:320
952021110,1sleep012-21ksoftirqd/021:47:320
514421100,2sleep10-21swapper/119:42:331
514421100,2sleep10-21swapper/119:42:331
495321060,4sleep24954-21grep21:42:312
495321060,4sleep24954-21grep21:42:312
495321060,4sleep24954-21grep21:42:312
941721040,3sleep30-21swapper/322:21:453
941721040,3sleep30-21swapper/322:21:453
1078121040,3chrt0-21swapper/322:22:263
1078121040,3chrt0-21swapper/322:22:263
1897321010,2sleep30-21swapper/321:57:333
1897321010,2sleep30-21swapper/321:57:333
242902980,2sleep30-21swapper/320:32:323
242902980,2sleep30-21swapper/320:32:323
229002960,3sleep20-21swapper/220:29:572
176002960,5sleep121-21ksoftirqd/121:57:101
176002960,5sleep121-21ksoftirqd/121:57:101
109292960,1sleep012-21ksoftirqd/019:57:310
109292960,1sleep012-21ksoftirqd/019:57:310
281572930,3sleep228152-21find20:42:322
281572930,3sleep228152-21find20:42:322
49582920,2chrt0-21swapper/121:07:241
49582920,2chrt0-21swapper/121:07:241
70692900,1sleep012-21ksoftirqd/019:47:300
70692900,1sleep012-21ksoftirqd/019:47:300
266072810,2sleep10-21swapper/120:38:531
259572790,3sleep30-21swapper/320:37:273
11092740,3sleep30-21swapper/321:38:583
11092740,3sleep30-21swapper/321:38:583
201172710,3chrt0-21swapper/120:22:251
201172710,3chrt0-21swapper/120:22:251
201172710,3chrt0-21swapper/120:22:251
102892710,3sleep30-21swapper/319:57:223
102892710,3sleep30-21swapper/319:57:223
230822700,2sleep333-21ksoftirqd/320:32:073
71152660,3chrt0-21swapper/321:12:243
71152660,3chrt0-21swapper/321:12:243
256172640,2sleep125644-21ntp_states19:12:261
256172640,2sleep125644-21ntp_states19:12:261
27882560,3chrt0-21swapper/321:02:233
27882560,3chrt0-21swapper/321:02:233
99862530,2sleep10-21swapper/122:22:161
99862530,2sleep10-21swapper/122:22:161
96702510,1sleep1201rcuc/121:14:521
96702510,1sleep1201rcuc/121:14:521
88412500,3sleep20-21swapper/221:13:522
88412500,3sleep20-21swapper/221:13:522
259292440,2sleep20-21swapper/221:32:132
259292440,2sleep20-21swapper/221:32:132
35002430,3sleep20-21swapper/221:42:062
35002430,3sleep20-21swapper/221:42:062
319432430,2sleep031961-21latency_hist22:12:100
319432430,2sleep031961-21latency_hist22:12:100
319432430,2sleep031961-21latency_hist22:12:100
176822430,2sleep30-21swapper/320:17:203
176822430,2sleep30-21swapper/320:17:203
12722430,3chrt0-21swapper/119:32:321
12722430,3chrt0-21swapper/119:32:321
272402400,2sleep127448-21unixbench_singl21:32:341
51382390,4sleep30-21swapper/321:42:323
51382390,4sleep30-21swapper/321:42:323
51382390,4sleep30-21swapper/321:42:323
26284993917,10cyclictest73-21kswapd019:57:312
26284993917,10cyclictest73-21kswapd019:57:312
233932390,3sleep30-21swapper/321:28:173
233932390,3sleep30-21swapper/321:28:173
22982390,3chrt0-21swapper/121:02:131
22982390,3chrt0-21swapper/121:02:131
185992390,2sleep118638-21ntp_states21:57:281
185992390,2sleep118638-21ntp_states21:57:281
26282993716,9cyclictest1269-21find19:32:320
26282993716,9cyclictest1269-21find19:32:320
26284993622,11cyclictest24284-21find20:32:312
26284993622,11cyclictest24284-21find20:32:312
71232350,1sleep16048-21diskmemload21:45:331
71232350,1sleep16048-21diskmemload21:45:331
71232350,1sleep16048-21diskmemload21:45:331
26282993518,7cyclictest14020-21grep21:52:330
26282993518,7cyclictest14020-21grep21:52:330
2628399341,4cyclictest0-21swapper/119:57:311
2628399341,4cyclictest0-21swapper/119:57:311
2628299341,21cyclictest73-21kswapd021:57:210
2628299341,21cyclictest73-21kswapd021:57:210
262392333,23sleep30-21swapper/319:12:453
262392333,23sleep30-21swapper/319:12:453
296952320,3sleep00-21swapper/019:22:290
296952320,3sleep00-21swapper/019:22:290
296952320,3sleep00-21swapper/019:22:290
308092310,2sleep30-21swapper/319:27:183
308092310,2sleep30-21swapper/319:27:183
26284993026,2cyclictest0-21swapper/221:47:292
26284993026,2cyclictest0-21swapper/221:47:292
95612290,2sleep29576-21ssh22:21:572
95612290,2sleep29576-21ssh22:21:572
2628399297,3cyclictest131rcu_preempt19:37:311
2628399297,3cyclictest131rcu_preempt19:37:311
120552290,2sleep20-21swapper/221:17:222
120552290,2sleep20-21swapper/221:17:222
26284992810,6cyclictest27-21ksoftirqd/219:37:312
26284992810,6cyclictest27-21ksoftirqd/219:37:312
26284992810,4cyclictest27-21ksoftirqd/221:32:322
2628399280,3cyclictest73-21kswapd021:02:321
2628399280,3cyclictest73-21kswapd021:02:321
251012282,15sleep273-21kswapd019:12:192
251012282,15sleep273-21kswapd019:12:192
26284992712,9cyclictest5350-21find21:07:312
26284992712,9cyclictest5350-21find21:07:312
2628399279,4cyclictest141rcub/019:27:321
2628299278,10cyclictest73-21kswapd020:52:320
302082260,3chrt0-21swapper/322:09:313
302082260,3chrt0-21swapper/322:09:313
302082260,3chrt0-21swapper/322:09:313
26284992613,5cyclictest1272-21runrttasks19:32:322
26284992613,5cyclictest1272-21runrttasks19:32:322
26283992614,10cyclictest21-21ksoftirqd/120:07:311
26282992611,9cyclictest3876-21/usr/sbin/munin21:42:240
26282992611,9cyclictest3876-21/usr/sbin/munin21:42:240
26282992611,9cyclictest3876-21/usr/sbin/munin21:42:240
2628499257,6cyclictest27-21ksoftirqd/221:02:322
2628499257,6cyclictest27-21ksoftirqd/221:02:322
2628499256,4cyclictest131rcu_preempt19:22:212
2628499256,4cyclictest131rcu_preempt19:22:212
2628499256,4cyclictest131rcu_preempt19:22:212
2628499251,4cyclictest131rcu_preempt21:52:332
2628499251,4cyclictest131rcu_preempt21:52:332
2628499251,13cyclictest18622-21ntpq21:57:272
2628499251,13cyclictest18622-21ntpq21:57:272
2628399258,3cyclictest131rcu_preempt20:42:301
2628399258,3cyclictest131rcu_preempt20:42:301
26283992517,6cyclictest14685-21df_inode22:27:201
26282992510,7cyclictest12-21ksoftirqd/021:02:320
26282992510,7cyclictest12-21ksoftirqd/021:02:320
26285992418,4cyclictest321rcuc/321:33:443
26285992417,5cyclictest321rcuc/320:42:543
26285992417,5cyclictest321rcuc/320:42:543
2628499247,4cyclictest131rcu_preempt20:02:312
2628499247,4cyclictest131rcu_preempt20:02:312
2628499243,5cyclictest131rcu_preempt22:12:312
2628499243,5cyclictest131rcu_preempt22:12:312
2628499242,8cyclictest131rcu_preempt19:42:312
2628499242,8cyclictest131rcu_preempt19:42:312
2628399244,5cyclictest131rcu_preempt21:27:311
2628399244,5cyclictest131rcu_preempt21:27:311
2628399241,3cyclictest131rcu_preempt20:32:321
2628399241,3cyclictest131rcu_preempt20:32:321
2628299246,5cyclictest131rcu_preempt22:22:330
2628299246,5cyclictest131rcu_preempt22:22:330
2628299242,16cyclictest28729-21kworker/0:020:47:310
2628299242,16cyclictest28729-21kworker/0:020:47:310
26282992414,7cyclictest38650irq/55-eth021:17:320
26282992414,7cyclictest38650irq/55-eth021:17:320
26282992412,10cyclictest11667-21cat21:17:150
26282992412,10cyclictest11667-21cat21:17:150
26285992315,5cyclictest14932sleep320:57:333
26285992315,5cyclictest14932sleep320:57:333
26284992315,6cyclictest23230-21seq22:02:202
26284992315,6cyclictest23230-21seq22:02:202
2628399238,4cyclictest131rcu_preempt19:47:311
2628399238,4cyclictest131rcu_preempt19:47:311
2628399233,6cyclictest21-21ksoftirqd/120:52:321
26283992317,4cyclictest21-21ksoftirqd/121:47:311
26283992317,4cyclictest21-21ksoftirqd/121:47:311
2628399231,3cyclictest0-21swapper/122:25:281
2628299233,18cyclictest12-21ksoftirqd/020:12:320
2628299233,18cyclictest12-21ksoftirqd/020:12:320
2628299231,17cyclictest0-21swapper/021:07:300
2628299231,17cyclictest0-21swapper/021:07:300
2628299231,16cyclictest22920-21kworker/0:220:30:550
26282992310,8cyclictest12-21ksoftirqd/020:10:200
26282992310,8cyclictest12-21ksoftirqd/019:42:120
26282992310,8cyclictest12-21ksoftirqd/019:42:120
26282992310,5cyclictest12-21ksoftirqd/021:32:530
2628599225,13cyclictest0-21swapper/319:32:323
2628599225,13cyclictest0-21swapper/319:32:323
2628599221,16cyclictest0-21swapper/322:12:323
2628599221,16cyclictest0-21swapper/322:12:323
2628499228,11cyclictest131rcu_preempt22:22:312
2628499228,11cyclictest131rcu_preempt22:22:312
2628499222,2cyclictest131rcu_preempt20:52:312
2628499221,3cyclictest131rcu_preempt20:07:322
2628399228,3cyclictest131rcu_preempt19:17:301
2628399228,3cyclictest131rcu_preempt19:17:301
2628399227,6cyclictest695-21runrttasks20:02:311
2628399227,6cyclictest695-21runrttasks20:02:311
2628299225,7cyclictest5384-21grep19:42:340
2628299225,7cyclictest5384-21grep19:42:340
2628299221,2cyclictest131rcu_preempt19:52:310
2628299221,2cyclictest131rcu_preempt19:52:310
26282992211,5cyclictest12-21ksoftirqd/021:22:290
26282992211,5cyclictest12-21ksoftirqd/021:22:290
26282992210,6cyclictest1267-21ssh22:12:480
26282992210,6cyclictest1267-21ssh22:12:480
26285992116,3cyclictest321rcuc/321:22:423
26285992116,3cyclictest321rcuc/321:22:423
26285992115,4cyclictest321rcuc/319:40:223
26285992115,4cyclictest321rcuc/319:40:223
2628499216,12cyclictest131rcu_preempt19:17:302
2628499216,12cyclictest131rcu_preempt19:17:302
2628499211,2cyclictest131rcu_preempt19:52:212
2628499211,2cyclictest131rcu_preempt19:52:212
2628499211,16cyclictest6279-21cut19:47:192
2628499211,16cyclictest6279-21cut19:47:192
2628399217,4cyclictest131rcu_preempt20:27:321
2628399213,4cyclictest131rcu_preempt22:02:311
2628399213,4cyclictest131rcu_preempt22:02:311
26283992113,6cyclictest9694-21latency_hist19:57:071
26283992113,6cyclictest9694-21latency_hist19:57:071
2628299219,9cyclictest24168-21timerandwakeup22:02:330
2628299219,9cyclictest24168-21timerandwakeup22:02:330
2628299211,17cyclictest31341-21ls19:27:240
2628299211,14cyclictest31216-21cut21:37:200
2628299211,14cyclictest31216-21cut21:37:200
26282992110,9cyclictest12-21ksoftirqd/021:27:310
26282992110,9cyclictest12-21ksoftirqd/021:27:310
26282992110,3cyclictest131rcu_preempt20:32:300
26282992110,3cyclictest131rcu_preempt20:32:300
2628599204,13cyclictest0-21swapper/320:52:333
26285992016,3cyclictest321rcuc/321:20:343
26285992016,3cyclictest321rcuc/321:20:343
26285992015,3cyclictest321rcuc/320:48:093
26285992015,3cyclictest321rcuc/320:48:093
26285992014,4cyclictest321rcuc/319:54:133
26285992014,4cyclictest321rcuc/319:54:133
2628499203,5cyclictest31004-21fschecks_count19:27:212
26284992015,4cyclictest14791-1kworker/2:0H20:47:232
26284992015,4cyclictest14791-1kworker/2:0H20:47:232
26283992015,3cyclictest21-21ksoftirqd/122:07:271
26283992015,3cyclictest21-21ksoftirqd/122:07:271
26283992015,3cyclictest21-21ksoftirqd/122:07:271
26283992013,3cyclictest131rcu_preempt22:12:311
26283992013,3cyclictest131rcu_preempt22:12:311
2628299208,9cyclictest73-21kswapd020:57:210
2628299208,9cyclictest73-21kswapd020:57:210
2628299205,5cyclictest12-21ksoftirqd/020:37:180
2628299201,9cyclictest28591-21idleruntime-cro19:22:070
2628299201,9cyclictest28591-21idleruntime-cro19:22:070
2628299201,7cyclictest19531-21/usr/sbin/munin20:22:230
2628299201,7cyclictest19531-21/usr/sbin/munin20:22:230
2628299201,7cyclictest19531-21/usr/sbin/munin20:22:230
2628299201,5cyclictest0-21swapper/020:17:200
2628299201,5cyclictest0-21swapper/020:17:200
2628299201,17cyclictest12176-21ls20:02:210
2628299201,17cyclictest12176-21ls20:02:210
216722200,2sleep2261rcuc/221:27:192
216722200,2sleep2261rcuc/221:27:192
26285991914,3cyclictest321rcuc/321:55:493
26285991914,3cyclictest321rcuc/321:55:493
2628599191,13cyclictest0-21swapper/322:02:213
2628599191,13cyclictest0-21swapper/322:02:213
2628599191,12cyclictest0-21swapper/320:12:323
2628599191,12cyclictest0-21swapper/320:12:323
2628499192,3cyclictest131rcu_preempt20:38:562
2628499191,7cyclictest0-21swapper/222:07:212
2628499191,7cyclictest0-21swapper/222:07:212
2628499191,7cyclictest0-21swapper/222:07:212
2628499191,4cyclictest0-21swapper/220:57:222
2628499191,4cyclictest0-21swapper/220:57:222
26284991914,3cyclictest27-21ksoftirqd/220:14:082
26284991914,3cyclictest27-21ksoftirqd/220:14:082
26284991913,4cyclictest27-21ksoftirqd/220:17:312
26284991913,4cyclictest27-21ksoftirqd/220:17:312
26283991913,3cyclictest131rcu_preempt21:22:321
26283991913,3cyclictest131rcu_preempt21:22:321
2628299193,14cyclictest28844-21cron20:47:070
2628299193,14cyclictest28844-21cron20:47:070
2628599185,9cyclictest0-21swapper/320:22:213
2628599185,9cyclictest0-21swapper/320:22:213
2628599185,9cyclictest0-21swapper/320:22:213
26285991813,3cyclictest50472sleep321:07:273
26285991813,3cyclictest50472sleep321:07:273
26285991813,3cyclictest321rcuc/319:19:323
26285991813,3cyclictest321rcuc/319:19:323
2628499181,13cyclictest19611-21cpuspeed20:22:202
2628499181,13cyclictest19611-21cpuspeed20:22:202
2628499181,13cyclictest19611-21cpuspeed20:22:202
2628399182,13cyclictest73-21kswapd020:12:201
2628399182,13cyclictest73-21kswapd020:12:201
26283991813,3cyclictest21-21ksoftirqd/120:17:221
26283991813,3cyclictest21-21ksoftirqd/120:17:221
2628599174,9cyclictest0-21swapper/319:27:323
26285991712,4cyclictest321rcuc/319:45:213
26285991712,4cyclictest321rcuc/319:45:213
26285991710,5cyclictest321rcuc/319:48:153
26285991710,5cyclictest321rcuc/319:48:153
2628599164,9cyclictest0-21swapper/320:07:323
26285991611,4cyclictest321rcuc/319:26:113
2628399162,12cyclictest29095-21fschecks_time19:22:211
2628399162,12cyclictest29095-21fschecks_time19:22:211
2628399162,12cyclictest29095-21fschecks_time19:22:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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