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2026-07-21 - 09:48
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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 highest latencies:
System rack1slot2.osadl.org (updated Tue Jul 21, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
988724948,0sleep00-21swapper/019:24:210
993724536,0sleep20-21swapper/219:24:522
1013223624,0sleep10-21swapper/119:27:111
1005823526,0sleep30-21swapper/319:26:213
8305060,0irq/26-0000:00:14074-21munin-run22:58:112
339960,0migration/33638-21sh00:06:453
339960,0migration/326660-21sh22:25:283
339960,0migration/324656-21munin-node23:38:383
339960,0migration/324038-21switchtime22:03:363
339960,0migration/323466-21munin-node00:38:253
339960,0migration/318172-21munin-node20:18:233
339960,0migration/312728-21sh00:13:113
29815060,0irq/29-eth0-tx-24903-21munin-node19:38:240
29805060,0irq/28-eth0-rx-23341-21ssh21:47:013
29805060,0irq/28-eth0-rx-22557-21perl21:28:243
29805060,0irq/28-eth0-rx-11504-21grep22:18:253
149960,0migration/022108-21sh00:35:160
149960,0migration/021488-21latency_hist20:43:100
149960,0migration/014636-21sh23:14:370
149960,0migration/013180-21kthreadcore22:18:290
149960,0migration/01079-21sh22:10:360
4150,0ktimersoftd/00-21swapper/000:55:390
339950,0migration/3975-21fschecks_count21:53:253
339950,0migration/37430-21kthreadcore22:33:293
339950,0migration/33831-21irqrtprio22:13:293
339950,0migration/330131-21latency_hist21:33:103
339950,0migration/329219-21fschecks_count20:03:243
339950,0migration/328956-21munin-node22:28:283
339950,0migration/328117-21kthreadcore21:08:293
339950,0migration/327957-21kthreadcore19:38:293
339950,0migration/324741-21kthreadcore00:18:283
339950,0migration/322238-21open_files23:18:343
339950,0migration/319496-21kthreadcore22:58:313
339950,0migration/318234-21kthreadcore22:38:303
339950,0migration/317377-21taskset20:14:323
339950,0migration/314456-21cpuspeed_turbos19:53:233
339950,0migration/314456-21cpuspeed_turbos19:53:233
339950,0migration/312807-21sh22:54:273
339950,0migration/310889-21latency_hist20:58:103
329950,0watchdog/38648-21kthreadcore21:38:303
329950,0watchdog/328995-21cut21:48:303
329950,0watchdog/323868-21grep19:33:333
329950,0watchdog/315576-21fschecks_time21:23:263
329950,0watchdog/312242-21wc23:53:263
329950,0watchdog/30-21swapper/320:33:303
329950,0watchdog/30-21swapper/319:43:293
29815050,0irq/29-eth0-tx-7210-21munin-node20:33:280
29815050,0irq/29-eth0-tx-5667-21ntp_kernel_pll_00:43:332
29815050,0irq/29-eth0-tx-28908-21ssh21:30:250
29815050,0irq/29-eth0-tx-24650-21munin-node23:23:282
29815050,0irq/29-eth0-tx-20225-21kthreadcore23:18:312
29815050,0irq/29-eth0-tx-10937-21munin-node20:58:260
29815050,0irq/29-eth0-tx-0-21swapper/222:08:012
29815050,0irq/29-eth0-tx-0-21swapper/200:34:322
29805050,0irq/28-eth0-rx-6899-21sshd21:14:393
29805050,0irq/28-eth0-rx-5052-21cat23:48:293
29805050,0irq/28-eth0-rx-29836-21kthreadcore22:08:303
29805050,0irq/28-eth0-rx-21408-21df22:43:243
29805050,0irq/28-eth0-rx-16450-21kthreadcore00:33:293
29805050,0irq/28-eth0-rx-15610-21pmu-power23:33:333
29805050,0irq/28-eth0-rx-10912-21kthreadcore23:13:313
29805050,0irq/28-eth0-rx-0-21swapper/323:05:583
29805050,0irq/28-eth0-rx-0-21swapper/300:15:373
259950,0migration/225537-21kthreadcore22:43:302
259950,0migration/222968-21sendmail_mailqu00:53:342
259950,0migration/213548-21gltestperf22:38:262
259950,0migration/211606-21fschecks_time22:18:252
249950,0watchdog/230054-21kthreadcore23:43:302
249950,0watchdog/218419-21grep21:43:302
249950,0watchdog/212244-21sed23:53:262
249950,0watchdog/20-21swapper/220:33:302
19150,0ktimersoftd/10-21swapper/122:06:051
179950,0migration/17379-21timerwakeupswit23:28:371
179950,0migration/17330-21cpuspeed_turbos19:48:231
179950,0migration/131081-21timerandwakeup23:23:381
179950,0migration/121506-21ntp_kernel_err21:43:321
179950,0migration/117898-21kthreadcore20:38:291
179950,0migration/110984-21timerandwakeup00:08:391
169950,0watchdog/122680-21kthreadcore23:38:301
169950,0watchdog/120001-21cpuspeed_turbos23:58:221
149950,0migration/07348-21latency_hist23:13:110
149950,0migration/07130-21kthreadcore20:08:300
149950,0migration/05157-21taskset21:34:520
149950,0migration/04403-21kthreadcore23:48:290
149950,0migration/03781-21kthreadcore21:13:300
149950,0migration/03350-21kthreadcore23:28:290
149950,0migration/030052-21kthreadcore23:43:300
149950,0migration/026910-21kthreadcore21:48:290
149950,0migration/025831-21fschecks_time20:23:250
149950,0migration/025541-21kthreadcore23:03:290
149950,0migration/025491-21pmu-power22:23:320
149950,0migration/023443-21aten_r1power_en00:38:250
149950,0migration/023048-21kthreadcore21:03:290
149950,0migration/022183-21fschecks_time19:58:250
149950,0migration/02201-21switchtime00:03:380
149950,0migration/02154-21munin-node22:28:410
149950,0migration/021377-21kthreadcore19:33:300
149950,0migration/021362-21cpuspeed_turbos22:43:240
149950,0migration/020955-21kthreadcore22:03:290
149950,0migration/017432-21latency_hist22:03:110
149950,0migration/014702-21kthreadcore23:33:310
149950,0migration/014598-21cpuspeed_turbos22:58:250
149950,0migration/014461-21kthreadcore19:28:280
149950,0migration/011885-21kthreadcore21:18:290
149950,0migration/011429-21taskset22:35:340
149950,0migration/010684-21latency_hist20:13:110
102879955,0cyclictest0-21swapper/123:09:181
102879955,0cyclictest0-21swapper/123:01:441
102879955,0cyclictest0-21swapper/122:55:451
102879950,0cyclictest0-21swapper/123:52:401
102879950,0cyclictest0-21swapper/122:26:541
102879950,0cyclictest0-21swapper/122:14:361
102879950,0cyclictest0-21swapper/121:59:471
102879950,0cyclictest0-21swapper/100:26:431
102869950,0cyclictest0-21swapper/023:19:290
102869950,0cyclictest0-21swapper/021:54:120
102869950,0cyclictest0-21swapper/021:40:570
9632240,0sleep312981-21kthreadcore21:18:293
339940,0migration/39219-21kthreadcore19:48:283
339940,0migration/38497-21kthreadcore20:08:303
339940,0migration/34074-21kthreadcore20:28:293
339940,0migration/331894-21runrttasks00:43:223
339940,0migration/324672-21aten_r1power_cu23:23:243
329940,0watchdog/34111-21diskstats20:53:263
329940,0watchdog/33612-21munin-node22:48:343
329940,0watchdog/329140-21munin-node20:48:223
329940,0watchdog/30-21swapper/323:28:303
329940,0watchdog/30-21swapper/323:08:263
329940,0watchdog/30-21swapper/321:59:103
329940,0watchdog/30-21swapper/320:23:263
329940,0watchdog/30-21swapper/300:48:303
329940,0watchdog/30-21swapper/300:23:303
29815040,0irq/29-eth0-tx-9538-21df_inode21:58:252
29815040,0irq/29-eth0-tx-7935-21ssh23:29:402
29815040,0irq/29-eth0-tx-359-21ssh21:53:132
29815040,0irq/29-eth0-tx-26599-21diskstats22:08:252
29815040,0irq/29-eth0-tx-0-21swapper/223:48:432
29815040,0irq/29-eth0-tx-0-21swapper/223:33:132
29815040,0irq/29-eth0-tx-0-21swapper/222:48:342
29815040,0irq/29-eth0-tx-0-21swapper/221:38:162
29815040,0irq/29-eth0-tx-0-21swapper/221:34:232
29815040,0irq/29-eth0-tx-0-21swapper/200:50:182
29815040,0irq/29-eth0-tx-0-21swapper/200:28:232
29815040,0irq/29-eth0-tx-0-21swapper/200:08:262
29815040,0irq/29-eth0-tx-0-21swapper/020:18:230
29815040,0irq/29-eth0-tx-0-21swapper/019:43:240
29805040,0irq/28-eth0-rx-0-21swapper/323:58:233
29805040,0irq/28-eth0-rx-0-21swapper/323:43:153
29805040,0irq/28-eth0-rx-0-21swapper/320:40:403
29805040,0irq/28-eth0-rx-0-21swapper/319:58:243
29805040,0irq/28-eth0-rx-0-21swapper/300:57:233
29805040,0irq/28-eth0-rx-0-21swapper/300:29:293
259940,0migration/27179-21cpu19:48:232
259940,0migration/24072-21aten_r1power_en22:33:222
259940,0migration/23248-21gltestperf22:13:262
259940,0migration/232368-21kthreadcore20:48:272
259940,0migration/229781-21kthreadcore19:38:292
259940,0migration/229711-21kthreadcore21:08:302
259940,0migration/228381-21fschecks_count22:28:262
259940,0migration/226423-21kthreadcore20:43:292
259940,0migration/223048-21kthreadcore20:18:292
259940,0migration/222935-21irqrtprio19:58:282
259940,0migration/222676-21sh00:18:272
259940,0migration/220293-21kthreadcore19:33:292
259940,0migration/218597-21taskset21:03:242
259940,0migration/21542-21kthreadcore20:03:292
259940,0migration/214622-21cpuspeed_turbos22:58:252
259940,0migration/214131-21if_eth000:13:262
249940,0watchdog/20-21swapper/221:48:302
249940,0watchdog/20-21swapper/220:23:262
249940,0watchdog/20-21swapper/200:23:262
179940,0migration/19764-21df_abs23:33:251
179940,0migration/16822-21kthreadcore20:53:301
179940,0migration/1466-21idleruntime00:43:281
179940,0migration/132317-21kthreadcore23:43:311
179940,0migration/131996-21taskset21:09:151
179940,0migration/129142-21taskset20:48:221
179940,0migration/127979-21timerwakeupswit20:43:361
179940,0migration/126397-21kthreadcore22:43:301
179940,0migration/120788-21munin-node19:53:371
179940,0migration/120788-21munin-node19:53:371
179940,0migration/12015-21latency20:03:291
179940,0migration/118565-21fschecks_count20:18:241
179940,0migration/115205-21kthreadcore00:13:281
179940,0migration/112465-21latency_hist22:38:111
179940,0migration/110813-21kthreadcore20:33:301
179940,0migration/110792-21cpuspeed_turbos19:28:221
169940,0watchdog/16669-21sh21:38:141
169940,0watchdog/15077-21ssh22:51:541
169940,0watchdog/13981-21ssh22:33:141
169940,0watchdog/13358-21kthreadcore21:13:301
169940,0watchdog/132401-21processes22:08:341
169940,0watchdog/129700-21ssh00:23:061
169940,0watchdog/124938-21kthreadcore19:58:291
169940,0watchdog/122923-21sshd21:28:261
169940,0watchdog/118249-21munin-node19:33:251
169940,0watchdog/115824-21kthreadcore22:18:301
169940,0watchdog/114529-21ssh00:33:061
169940,0watchdog/111568-21kthreadcore00:48:301
169940,0watchdog/11008-21sed19:43:291
169940,0watchdog/10-21swapper/122:28:261
169940,0watchdog/10-21swapper/121:48:301
169940,0watchdog/10-21swapper/121:34:541
169940,0watchdog/10-21swapper/121:23:301
169940,0watchdog/10-21swapper/120:13:301
169940,0watchdog/10-21swapper/100:03:301
149940,0migration/05455-21kthreadcore20:53:300
149940,0migration/04553-21sh22:50:190
149940,0migration/025098-21forks23:23:260
149940,0migration/022945-21kthreadcore23:58:270
149940,0migration/019130-21pmu-power00:13:310
102889944,0cyclictest0-21swapper/219:43:382
102889943,0cyclictest4561-21awk20:08:282
102889943,0cyclictest3571-21lldpd21:31:042
102889943,0cyclictest3571-21lldpd20:39:012
102889943,0cyclictest3571-21lldpd20:16:012
102889943,0cyclictest3524-21snmpd21:23:192
102889943,0cyclictest3524-21snmpd21:18:192
102889943,0cyclictest3524-21snmpd20:28:192
102889943,0cyclictest3250-21irqbalance23:58:182
102889943,0cyclictest3250-21irqbalance23:13:282
102889943,0cyclictest3250-21irqbalance21:13:472
102889943,0cyclictest3250-21irqbalance20:58:272
102889943,0cyclictest3250-21irqbalance20:53:272
102889943,0cyclictest32444-21awk23:08:272
102889943,0cyclictest29334-21awk00:03:282
102889943,0cyclictest24536-21awk00:38:292
102889943,0cyclictest23915-21awk23:03:272
102889943,0cyclictest19361-21munin-node22:23:362
102889943,0cyclictest19075-21awk23:38:282
102879944,0cyclictest0-21swapper/100:56:021
102879944,0cyclictest0-21swapper/100:38:131
102879943,0cyclictest8713-21awk23:13:291
102879943,0cyclictest3524-21snmpd20:26:031
102879943,0cyclictest3524-21snmpd19:39:481
102879943,0cyclictest23099-21sadc00:38:121
102879943,0cyclictest19457-21sadc23:58:111
102879943,0cyclictest11971-21awk20:58:251
102869944,0cyclictest0-21swapper/023:54:010
102869943,0cyclictest8093-21awk19:48:270
102869943,0cyclictest31130-21awk00:23:260
102869943,0cyclictest29238-21diskstats20:48:220
102869943,0cyclictest17181-21kworker/0:100:44:190
102869943,0cyclictest16572-21awk21:43:280
102869943,0cyclictest13792-21awk22:38:280
102869940,0cyclictest28623-21munin-node20:03:230
102869940,0cyclictest0-21swapper/023:43:080
339930,0migration/328257-21taskset20:44:263
329930,0watchdog/30-21swapper/321:03:223
329930,0watchdog/30-21swapper/319:28:573
29815030,0irq/29-eth0-tx-25506-21telnet21:08:230
29815030,0irq/29-eth0-tx-0-21swapper/019:53:250
29815030,0irq/29-eth0-tx-0-21swapper/019:53:250
169930,0watchdog/10-21swapper/123:18:541
169930,0watchdog/10-21swapper/121:53:261
102889932,0cyclictest16700-21sensors19:28:322
102889930,0cyclictest15435-21iostat_ios19:53:282
102889930,0cyclictest15435-21iostat_ios19:53:282
102879932,0cyclictest5998-21open_files20:28:311
102879932,0cyclictest24013-21awk23:03:281
102879930,0cyclictest9996-21kthreadcore21:18:281
102879930,0cyclictest4334-21perl20:08:261
102869933,0cyclictest18899-21kworker/0:120:28:220
102869933,0cyclictest17181-21kworker/0:122:13:240
102869933,0cyclictest17181-21kworker/0:100:48:130
102869933,0cyclictest17181-21kworker/0:100:28:190
102869933,0cyclictest17181-21kworker/0:100:18:130
102869933,0cyclictest17181-21kworker/0:100:08:210
102869932,0cyclictest6903-21if_err_eth1.322:53:260
102869930,0cyclictest22385-21perl20:43:240
102869930,0cyclictest14676-21munin-node21:23:270
102879921,0cyclictest17928-21latency_hist21:03:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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