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2026-09-06 - 08:36
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot2.osadl.org (updated Sun Sep 06, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2820826362,0sleep00-21swapper/019:28:210
2827324738,0sleep10-21swapper/119:29:061
2829723726,0sleep30-21swapper/319:29:243
2828122824,0sleep20-21swapper/219:29:112
285939974,0cyclictest25250-21awk00:32:030
339960,0migration/35631-21sh22:42:513
339960,0migration/34235-21sh22:24:163
339960,0migration/32744-21munin-node20:17:253
339960,0migration/324838-21sh23:13:253
339960,0migration/320070-21sh22:15:573
339960,0migration/317986-21sh00:45:173
339960,0migration/31530-21munin-node21:27:203
329960,0watchdog/3927-21kthreadcore23:37:223
29805060,0irq/28-eth0-rx-7095-21kthreadcore21:47:213
29805060,0irq/28-eth0-rx-27791-21sh23:52:223
29805060,0irq/28-eth0-rx-11813-21grep00:02:203
285939960,0cyclictest0-21swapper/021:44:120
149960,0migration/015526-21gltestperf20:07:170
4150,0ktimersoftd/00-21swapper/022:23:560
35150,0ktimersoftd/30-21swapper/300:47:053
339950,0migration/3936-21taskset21:46:323
339950,0migration/36910-21taskset19:59:233
339950,0migration/33797-21latency23:57:213
339950,0migration/329747-21diskmemload22:38:483
339950,0migration/328901-21aten2.4-expect19:32:143
339950,0migration/328123-21fschecks_time00:52:213
339950,0migration/326665-21kthreadcore22:57:233
339950,0migration/326186-21kthreadcore22:17:223
339950,0migration/325666-21munin-node19:52:153
339950,0migration/324254-21runrttasks21:41:023
339950,0migration/321657-21kthreadcore21:57:213
339950,0migration/320893-21diskmemload23:32:203
339950,0migration/318071-21kthreadcore20:52:213
339950,0migration/31708-21if_eth023:02:193
339950,0migration/315615-21munin-node00:07:153
339950,0migration/315383-21fschecks_time20:07:173
339950,0migration/311928-21munin-node19:42:193
339950,0migration/310433-21taskset20:23:013
339950,0migration/310286-21aten_r1power_fr21:52:183
329950,0watchdog/39586-21kthreadcore20:47:213
329950,0watchdog/34827-21ssh00:57:223
329950,0watchdog/330113-21kthreadcore22:02:213
329950,0watchdog/329398-21kthreadcore20:37:213
329950,0watchdog/325008-21kthreadcore20:12:213
329950,0watchdog/315619-21irqstats22:32:213
329950,0watchdog/310015-21nfs_client21:07:213
329950,0watchdog/30-21swapper/321:12:213
29815050,0irq/29-eth0-tx-9271-21munin-node23:07:182
29815050,0irq/29-eth0-tx-539-21cut00:52:252
29815050,0irq/29-eth0-tx-3616-21munin-node00:57:192
29815050,0irq/29-eth0-tx-28939-21munin-node20:17:160
29815050,0irq/29-eth0-tx-18237-21munin-node20:32:270
29815050,0irq/29-eth0-tx-11889-21sed22:27:262
29815050,0irq/29-eth0-tx-0-21swapper/223:57:312
29815050,0irq/29-eth0-tx-0-21swapper/223:42:262
29815050,0irq/29-eth0-tx-0-21swapper/223:32:312
29815050,0irq/29-eth0-tx-0-21swapper/223:02:212
29815050,0irq/29-eth0-tx-0-21swapper/222:05:432
29815050,0irq/29-eth0-tx-0-21swapper/200:31:212
29815050,0irq/29-eth0-tx-0-21swapper/021:02:280
29815050,0irq/29-eth0-tx-0-21swapper/021:02:280
29815050,0irq/29-eth0-tx-0-21swapper/020:57:160
29805050,0irq/28-eth0-rx-6464-21sendmail_mailst20:42:243
29805050,0irq/28-eth0-rx-6190-21ssh00:17:263
29805050,0irq/28-eth0-rx-5699-21if_eth1.223:42:203
29805050,0irq/28-eth0-rx-29123-21cut23:17:203
29805050,0irq/28-eth0-rx-24718-21unixbench_singl20:32:283
29805050,0irq/28-eth0-rx-2412-21grep00:37:163
29805050,0irq/28-eth0-rx-14071-21kthreadcore23:07:243
29805050,0irq/28-eth0-rx-10467-21kthreadcore22:47:203
29805050,0irq/28-eth0-rx-0-21swapper/323:47:563
29805050,0irq/28-eth0-rx-0-21swapper/323:27:243
29805050,0irq/28-eth0-rx-0-21swapper/323:24:113
29805050,0irq/28-eth0-rx-0-21swapper/322:07:073
29805050,0irq/28-eth0-rx-0-21swapper/300:32:223
29805050,0irq/28-eth0-rx-0-21swapper/300:22:223
29805050,0irq/28-eth0-rx-0-21swapper/300:12:143
286019955,0cyclictest0-21swapper/220:57:272
286019950,0cyclictest0-21swapper/223:12:062
286019950,0cyclictest0-21swapper/222:43:152
286019950,0cyclictest0-21swapper/200:18:282
285949955,0cyclictest0-21swapper/123:27:161
285949955,0cyclictest0-21swapper/100:25:171
285949950,0cyclictest0-21swapper/123:52:011
285949950,0cyclictest0-21swapper/123:08:491
285939955,0cyclictest8265-21kworker/0:019:47:170
285939955,0cyclictest8265-21kworker/0:019:39:250
285939955,0cyclictest8265-21kworker/0:019:33:550
285939955,0cyclictest32444-21kworker/0:121:07:350
285939955,0cyclictest32444-21kworker/0:120:52:070
285939955,0cyclictest32444-21kworker/0:120:48:010
285939955,0cyclictest32444-21kworker/0:120:43:110
285939955,0cyclictest32444-21kworker/0:120:12:490
285939955,0cyclictest32444-21kworker/0:120:02:050
285939955,0cyclictest32444-21kworker/0:120:01:510
285939955,0cyclictest12220-21kworker/0:221:24:410
285939955,0cyclictest0-21swapper/000:40:560
285939954,0cyclictest12220-21kworker/0:221:27:050
285939954,0cyclictest12220-21kworker/0:221:19:090
285939950,0cyclictest0-21swapper/023:02:240
285939950,0cyclictest0-21swapper/022:33:520
285939950,0cyclictest0-21swapper/021:41:310
259950,0migration/231665-21kthreadcore23:37:212
259950,0migration/213251-21missed_timers20:02:212
259950,0migration/21113-21gltestperf20:42:162
249950,0watchdog/232291-21kthreadcore19:32:212
249950,0watchdog/222900-21kthreadcore20:32:212
249950,0watchdog/212066-21perl23:27:182
19150,0ktimersoftd/10-21swapper/100:47:051
179950,0migration/1554-21kthreadcore22:02:221
179950,0migration/13623-21kthreadcore21:47:201
179950,0migration/132229-21turbostat19:57:021
179950,0migration/132208-21sh00:32:301
179950,0migration/128015-21switchtime20:12:281
179950,0migration/127328-21kthreadcore00:12:211
179950,0migration/122466-21fschecks_time23:52:151
179950,0migration/114077-21munin-node21:32:241
179950,0migration/113929-21kthreadcore22:12:231
179950,0migration/111321-21kthreadcore22:47:201
169950,0watchdog/13490-21chrt20:21:291
169950,0watchdog/122899-21kthreadcore20:32:211
169950,0watchdog/121214-21pluginstate00:07:221
149950,0migration/09950-21sh22:07:250
149950,0migration/05040-21kthreadcore21:47:210
149950,0migration/04385-21fschecks_time00:57:190
149950,0migration/0350-21kthreadcore22:02:220
149950,0migration/032414-21cpuspeed_turbos00:17:150
149950,0migration/031791-21munin-node23:57:190
149950,0migration/031367-21munin-node19:52:230
149950,0migration/028169-21fschecks_time00:52:210
149950,0migration/026213-21fschecks_time20:37:170
149950,0migration/020111-21kthreadcore22:52:240
149950,0migration/018882-21kthreadcore00:07:190
149950,0migration/018132-21latency_hist20:32:020
149950,0migration/016638-21latency19:42:220
149950,0migration/013248-21kthreadcore21:12:220
149950,0migration/013094-21sh23:47:080
149950,0migration/010780-21kthreadcore21:32:200
149950,0migration/010685-21df_abs00:42:170
339940,0migration/34359-21fschecks_time19:37:163
339940,0migration/319356-21kthreadcore22:52:243
339940,0migration/314884-21kthreadcore20:27:203
329940,0watchdog/327423-21kthreadcore20:57:213
29815040,0irq/29-eth0-tx-7322-21ssh22:47:062
29815040,0irq/29-eth0-tx-5743-21kthreadcore23:22:222
29815040,0irq/29-eth0-tx-29270-21munin-node22:22:292
29815040,0irq/29-eth0-tx-25467-21ssh00:32:062
29815040,0irq/29-eth0-tx-16379-21diskstats22:52:192
29815040,0irq/29-eth0-tx-1427-21ssh21:47:122
29815040,0irq/29-eth0-tx-12184-21munin-node22:12:302
29815040,0irq/29-eth0-tx-0-21swapper/223:52:362
29815040,0irq/29-eth0-tx-0-21swapper/223:47:112
29815040,0irq/29-eth0-tx-0-21swapper/223:17:142
29815040,0irq/29-eth0-tx-0-21swapper/222:57:312
29815040,0irq/29-eth0-tx-0-21swapper/222:37:232
29815040,0irq/29-eth0-tx-0-21swapper/221:57:202
29815040,0irq/29-eth0-tx-0-21swapper/221:42:062
29815040,0irq/29-eth0-tx-0-21swapper/221:33:532
29815040,0irq/29-eth0-tx-0-21swapper/200:47:162
29815040,0irq/29-eth0-tx-0-21swapper/200:42:202
29805040,0irq/28-eth0-rx-0-21swapper/322:27:133
29805040,0irq/28-eth0-rx-0-21swapper/300:27:163
286019943,0cyclictest4709-21awk19:37:182
286019943,0cyclictest3571-21lldpd21:38:002
286019943,0cyclictest3571-21lldpd21:28:002
286019943,0cyclictest3571-21lldpd21:25:302
286019943,0cyclictest3571-21lldpd21:16:302
286019943,0cyclictest3571-21lldpd21:07:302
286019943,0cyclictest3524-21snmpd20:50:012
286019943,0cyclictest3524-21snmpd19:53:452
286019943,0cyclictest3250-21irqbalance21:52:092
286019943,0cyclictest24692-21awk00:12:182
286019943,0cyclictest19514-21awk21:17:172
285949944,0cyclictest0-21swapper/100:04:561
285949943,0cyclictest4825-21awk00:57:221
285949943,0cyclictest3571-21lldpd00:01:321
285949943,0cyclictest3524-21snmpd23:23:481
285949943,0cyclictest27506-21awk23:17:191
285949943,0cyclictest23739-21awk22:37:191
285949943,0cyclictest17386-21awk21:37:171
285949943,0cyclictest1642-21awk21:27:211
285939944,0cyclictest32444-21kworker/0:120:22:050
285939944,0cyclictest0-21swapper/023:09:490
285939944,0cyclictest0-21swapper/000:15:050
285939943,0cyclictest5616-21awk23:42:190
285939943,0cyclictest3571-21lldpd23:22:030
285939943,0cyclictest3571-21lldpd23:18:330
285939943,0cyclictest3524-21snmpd23:52:190
285939943,0cyclictest3250-21irqbalance23:38:090
285939943,0cyclictest3250-21irqbalance23:32:590
285939943,0cyclictest3250-21irqbalance23:31:290
285939943,0cyclictest3250-21irqbalance22:37:190
285939943,0cyclictest21933-21awk22:17:190
259940,0migration/27395-21fschecks_time00:02:162
259940,0migration/26419-21switchtime19:57:282
259940,0migration/232608-21kthreadcore20:17:202
259940,0migration/23166-21irqrtprio00:37:192
259940,0migration/230473-21irqcore21:02:192
259940,0migration/230473-21irqcore21:02:192
259940,0migration/227472-21kthreadcore20:37:202
259940,0migration/222119-21df_abs20:12:162
259940,0migration/221303-21fschecks_count22:17:172
259940,0migration/216386-21kthreadcore20:52:202
249940,0watchdog/215486-21sed00:07:142
249940,0watchdog/213283-21kthreadcore19:42:212
249940,0watchdog/210244-21kthreadcore00:22:222
249940,0watchdog/20-21swapper/222:32:212
249940,0watchdog/20-21swapper/222:08:092
179940,0migration/17710-21kthreadcore20:22:191
179940,0migration/16626-21kthreadcore23:42:211
179940,0migration/15859-21missed_timers00:17:221
179940,0migration/15336-21kthreadcore20:42:211
179940,0migration/129506-21cpuspeed_turbos22:22:161
179940,0migration/126559-21kernelversion21:42:221
179940,0migration/122881-21kthreadcore23:32:211
179940,0migration/122318-21kthreadcore21:17:191
179940,0migration/12186-21kthreadcore19:57:211
179940,0migration/121585-21kthreadcore00:27:221
179940,0migration/118985-21munin-node21:57:151
179940,0migration/117268-21kthreadcore22:32:221
179940,0migration/117097-21munin-node22:52:221
179940,0migration/116458-21kthreadcore20:52:201
179940,0migration/114607-21kthreadcore21:52:251
179940,0migration/111871-21kthreadcore20:02:201
169940,0watchdog/17572-21diskmemload23:37:221
169940,0watchdog/17572-21diskmemload23:12:501
169940,0watchdog/16362-21cut23:02:221
169940,0watchdog/132594-21ssh23:01:421
169940,0watchdog/128809-21munin-node19:32:211
169940,0watchdog/125401-21kthreadcore20:57:211
169940,0watchdog/125172-21kthreadcore22:17:211
169940,0watchdog/11695-21awk00:37:141
169940,0watchdog/10-21swapper/100:42:181
149940,0migration/025741-21runrttasks00:48:070
149940,0migration/014908-21kthreadcore22:12:230
149940,0migration/011010-21fschecks_time21:52:200
329930,0watchdog/30-21swapper/321:17:133
329930,0watchdog/30-21swapper/320:06:573
29805030,0irq/28-eth0-rx-0-21swapper/321:32:263
29805030,0irq/28-eth0-rx-0-21swapper/321:22:043
29805030,0irq/28-eth0-rx-0-21swapper/321:02:143
29805030,0irq/28-eth0-rx-0-21swapper/321:02:143
29805030,0irq/28-eth0-rx-0-21swapper/319:47:243
286019932,0cyclictest19166-21awk19:47:182
286019930,0cyclictest11757-21tune2fs20:27:152
285949933,0cyclictest0-21swapper/122:27:301
285949932,0cyclictest4026-21kthreadcore22:42:211
285949932,0cyclictest30153-21awk21:02:171
285949932,0cyclictest30153-21awk21:02:171
285949932,0cyclictest28503-21awk00:52:231
285949932,0cyclictest24248-21sensors19:47:251
285949932,0cyclictest11692-21fschecks_count21:12:181
285949930,0cyclictest4847-21perl21:07:151
285949930,0cyclictest20-21ksoftirqd/119:37:251
285939933,0cyclictest25145-21kworker/0:123:12:080
285939933,0cyclictest25145-21kworker/0:122:57:040
285939933,0cyclictest25145-21kworker/0:122:47:140
285939933,0cyclictest25145-21kworker/0:122:42:120
285939933,0cyclictest25145-21kworker/0:122:27:040
285939933,0cyclictest18788-21kworker/0:000:22:100
285939933,0cyclictest18788-21kworker/0:000:02:060
285939933,0cyclictest12220-21kworker/0:221:57:060
285939930,0cyclictest26360-21perl00:32:170
249930,0watchdog/20-21swapper/220:22:172
249930,0watchdog/20-21swapper/220:07:092
179930,0migration/111902-21idleruntime19:42:181
169930,0watchdog/10-21swapper/122:09:131
169930,0watchdog/10-21swapper/120:47:051
169930,0watchdog/10-21swapper/120:37:211
285949921,0cyclictest3524-21snmpd21:22:041
285949920,0cyclictest14517-21latency_hist20:07:021
285949920,0cyclictest0-21swapper/120:27:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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