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2026-04-11 - 03:36
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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 Sat Apr 11, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2713025242,0sleep30-21swapper/319:15:443
2713423927,0sleep20-21swapper/219:15:472
2714323525,0sleep10-21swapper/119:15:541
2712723228,0sleep00-21swapper/019:15:410
275639976,0cyclictest9215-21cut00:45:121
35160,0ktimersoftd/30-21swapper/321:31:253
339960,0migration/325218-21sh23:59:123
339960,0migration/323823-21sh22:41:243
339960,0migration/322105-21sh22:22:393
29805060,0irq/28-eth0-rx-1494-21grep23:45:113
29805060,0irq/28-eth0-rx-14004-21df_inode19:55:073
275729960,0cyclictest0-21swapper/223:33:382
275729960,0cyclictest0-21swapper/219:25:102
275639960,0cyclictest12951-21tune2fs22:00:081
275599960,0cyclictest0-21swapper/020:25:110
149960,0migration/04307-21sh22:11:150
4150,0ktimersoftd/00-21swapper/023:00:300
339950,0migration/39939-21aten_r1power_fr19:30:043
339950,0migration/38147-21kthreadcore00:45:113
339950,0migration/37213-21fschecks_count20:35:073
339950,0migration/36445-21cpuspeed_turbos23:30:063
339950,0migration/36134-21munin-node19:25:123
339950,0migration/35539-21taskset23:28:573
339950,0migration/34553-21kthreadcore21:15:123
339950,0migration/3455-21kthreadcore23:05:113
339950,0migration/331543-21taskset21:12:503
339950,0migration/330168-21kthreadcore22:45:113
339950,0migration/330131-21taskset22:25:583
339950,0migration/329719-21aten_r1power_po22:10:063
339950,0migration/326436-21kthreadcore20:00:123
339950,0migration/323759-21taskset21:28:433
339950,0migration/321961-21sh22:05:083
339950,0migration/315218-21sh23:50:303
339950,0migration/314829-21kthreadcore23:15:103
339950,0migration/314413-21kthreadcore20:15:113
339950,0migration/314012-21cpuspeed_turbos20:40:063
339950,0migration/312895-21latency_hist00:29:543
329950,0watchdog/38422-21ssh22:50:213
329950,0watchdog/325924-21telnet00:00:063
329950,0watchdog/317563-21munin-node21:05:053
29815050,0irq/29-eth0-tx-2813-21munin-node20:10:170
29815050,0irq/29-eth0-tx-24691-21munin-node21:10:070
29815050,0irq/29-eth0-tx-13814-21tail20:40:050
29815050,0irq/29-eth0-tx-0-21swapper/223:35:192
29815050,0irq/29-eth0-tx-0-21swapper/020:06:180
29815050,0irq/29-eth0-tx-0-21swapper/019:41:140
29805050,0irq/28-eth0-rx-8517-21kthreadcore00:25:123
29805050,0irq/28-eth0-rx-7679-21cut23:10:123
29805050,0irq/28-eth0-rx-7198-21needreboot21:35:143
29805050,0irq/28-eth0-rx-3250-21irqbalance22:59:213
29805050,0irq/28-eth0-rx-31701-21latency_hist22:29:543
29805050,0irq/28-eth0-rx-26240-21ssh00:15:473
29805050,0irq/28-eth0-rx-24122-21kthreadcore00:35:133
29805050,0irq/28-eth0-rx-22745-21kthreadcore23:00:113
29805050,0irq/28-eth0-rx-13208-21munin-node21:20:163
29805050,0irq/28-eth0-rx-11595-21kthreadcore21:40:133
29805050,0irq/28-eth0-rx-0-21swapper/323:35:423
29805050,0irq/28-eth0-rx-0-21swapper/322:15:053
29805050,0irq/28-eth0-rx-0-21swapper/322:04:413
29805050,0irq/28-eth0-rx-0-21swapper/321:55:083
29805050,0irq/28-eth0-rx-0-21swapper/321:50:443
29805050,0irq/28-eth0-rx-0-21swapper/300:20:083
29805050,0irq/28-eth0-rx-0-21swapper/300:10:143
29805050,0irq/28-eth0-rx-0-21swapper/300:05:173
275729950,0cyclictest0-21swapper/222:46:022
275729950,0cyclictest0-21swapper/221:05:072
275599955,0cyclictest0-21swapper/023:19:330
275599955,0cyclictest0-21swapper/022:40:550
275599953,0cyclictest19786-21kworker/0:022:16:410
275599952,0cyclictest19786-21kworker/0:022:25:130
27150,0ktimersoftd/20-21swapper/220:15:092
259950,0migration/224564-21sh21:30:042
259950,0migration/219568-21kthreadcore19:35:112
249950,0watchdog/211111-21irqcore19:30:092
179950,0migration/16019-21munin-node21:15:191
179950,0migration/131589-21runrttasks23:44:131
179950,0migration/130204-21sh22:26:111
179950,0migration/122936-21taskset21:26:441
179950,0migration/120002-21munin-node20:40:151
179950,0migration/119595-21sh00:15:081
179950,0migration/111217-21gltestperf21:00:061
179950,0migration/111212-21munin-node20:15:091
169950,0watchdog/111109-21irqcore19:30:091
149950,0migration/09605-21kthreadcore23:10:130
149950,0migration/09434-21kthreadcore21:55:130
149950,0migration/08541-21kthreadcore23:30:110
149950,0migration/07627-21timerandwakeup21:35:190
149950,0migration/07153-21sh22:33:020
149950,0migration/03631-21idleruntime19:25:090
149950,0migration/030057-21kthreadcore22:45:110
149950,0migration/029800-21kthreadcore21:30:130
149950,0migration/022657-21irqcore23:20:110
149950,0migration/022625-21kthreadcore20:00:110
149950,0migration/022390-21munin-node22:05:100
149950,0migration/020785-21kthreadcore21:45:110
149950,0migration/020563-21kthreadcore20:20:120
149950,0migration/020135-21fschecks_time00:15:090
149950,0migration/019084-21kthreadcore21:05:100
149950,0migration/017845-21kthreadcore19:55:120
149950,0migration/017776-21sh00:11:080
149950,0migration/01737-21kthreadcore21:15:110
149950,0migration/017048-21taskset23:55:010
149950,0migration/015306-21kthreadcore22:00:120
149950,0migration/012294-21kthreadcore00:45:130
149950,0migration/011318-21kthreadcore22:35:130
149950,0migration/011020-21kthreadcore23:50:110
149950,0migration/010945-21gltestperf21:40:100
149950,0migration/010148-21kthreadcore20:35:110
149950,0migration/010033-21latency_hist20:14:540
8305040,0irq/26-0000:00:1999-21md0_raid100:34:542
8305040,0irq/26-0000:00:0-21swapper/222:34:542
339940,0migration/329653-21kthreadcore19:40:103
339940,0migration/325383-21kthreadcore23:20:123
339940,0migration/322656-21kthreadcore20:45:103
329940,0watchdog/38796-21sed20:10:133
329940,0watchdog/311488-21munin-node21:00:093
329940,0watchdog/30-21swapper/320:25:133
329940,0watchdog/30-21swapper/319:45:173
329940,0watchdog/30-21swapper/300:40:063
29815040,0irq/29-eth0-tx-8104-21taskset21:35:542
29815040,0irq/29-eth0-tx-6619-21diskmemload23:56:172
29815040,0irq/29-eth0-tx-23421-21ssh21:27:522
29815040,0irq/29-eth0-tx-1850-21ssh21:50:522
29815040,0irq/29-eth0-tx-1727-21chrt22:50:062
29815040,0irq/29-eth0-tx-0-21swapper/223:41:492
29815040,0irq/29-eth0-tx-0-21swapper/223:15:052
29815040,0irq/29-eth0-tx-0-21swapper/223:00:142
29815040,0irq/29-eth0-tx-0-21swapper/222:55:182
29815040,0irq/29-eth0-tx-0-21swapper/222:15:042
29815040,0irq/29-eth0-tx-0-21swapper/221:44:552
29815040,0irq/29-eth0-tx-0-21swapper/221:40:072
29815040,0irq/29-eth0-tx-0-21swapper/200:31:252
29815040,0irq/29-eth0-tx-0-21swapper/200:24:562
29815040,0irq/29-eth0-tx-0-21swapper/200:20:072
29815040,0irq/29-eth0-tx-0-21swapper/200:09:562
29815040,0irq/29-eth0-tx-0-21swapper/021:20:040
29815040,0irq/29-eth0-tx-0-21swapper/021:02:240
29815040,0irq/29-eth0-tx-0-21swapper/020:55:110
29815040,0irq/29-eth0-tx-0-21swapper/019:20:120
29805040,0irq/28-eth0-rx-0-21swapper/323:40:173
29805040,0irq/28-eth0-rx-0-21swapper/322:35:223
29805040,0irq/28-eth0-rx-0-21swapper/321:45:123
29805040,0irq/28-eth0-rx-0-21swapper/319:34:563
275729944,0cyclictest0-21swapper/221:24:402
275729943,0cyclictest8491-21munin-node23:50:142
275729943,0cyclictest4726-21awk21:55:092
275729943,0cyclictest3571-21lldpd20:57:572
275729943,0cyclictest3524-21snmpd22:41:282
275729943,0cyclictest3524-21snmpd22:23:282
275729943,0cyclictest3524-21snmpd22:07:282
275729943,0cyclictest3524-21snmpd21:11:272
275729943,0cyclictest3524-21snmpd20:10:112
275729943,0cyclictest3524-21snmpd00:16:142
275729943,0cyclictest313-21awk20:30:092
275729943,0cyclictest30971-21awk23:25:092
275729943,0cyclictest29148-21awk20:05:092
275729943,0cyclictest14692-21awk19:55:102
275729941,0cyclictest0-21swapper/222:10:062
275729940,0cyclictest3917-21munin-node23:10:172
275639944,0cyclictest0-21swapper/123:20:041
275639944,0cyclictest0-21swapper/123:09:301
275639943,0cyclictest3969-21awk20:10:091
275639943,0cyclictest3571-21lldpd22:54:591
275639943,0cyclictest3571-21lldpd22:45:591
275639943,0cyclictest3571-21lldpd22:43:591
275639943,0cyclictest3571-21lldpd22:20:591
275639943,0cyclictest3524-21snmpd21:12:271
275639943,0cyclictest3524-21snmpd21:09:271
275639943,0cyclictest3524-21snmpd20:53:261
275639943,0cyclictest3524-21snmpd20:32:111
275639943,0cyclictest3524-21snmpd20:27:261
275639943,0cyclictest3524-21snmpd20:07:111
275639943,0cyclictest21921-21awk20:00:101
275639943,0cyclictest18341-21awk20:20:091
275639943,0cyclictest12685-21sadc00:29:541
275639940,0cyclictest6619-21diskmemload22:07:041
275599944,0cyclictest30414-21kworker/0:219:30:210
275599944,0cyclictest19786-21kworker/0:020:50:210
275599944,0cyclictest19786-21kworker/0:020:46:210
275599944,0cyclictest19786-21kworker/0:020:30:410
275599944,0cyclictest0-21swapper/023:42:060
275599944,0cyclictest0-21swapper/021:29:110
275599944,0cyclictest0-21swapper/019:50:110
275599944,0cyclictest0-21swapper/019:45:460
275599944,0cyclictest0-21swapper/000:40:350
275599944,0cyclictest0-21swapper/000:20:240
275599943,0cyclictest3524-21snmpd00:07:140
275599943,0cyclictest3250-21irqbalance00:00:010
275599943,0cyclictest15653-21awk22:20:080
275599943,0cyclictest14082-21awk00:30:090
27140,0ktimersoftd/20-21swapper/222:25:032
259940,0migration/27457-21fschecks_time20:35:072
259940,0migration/26028-21unixbench-2d22:30:192
259940,0migration/228192-21runrttasks19:20:062
259940,0migration/227534-21latency_hist23:04:542
259940,0migration/225881-21kthreadcore20:45:112
259940,0migration/223221-21kthreadcore20:00:112
259940,0migration/215147-21kthreadcore22:00:122
249940,0watchdog/28205-21ssh00:05:142
249940,0watchdog/25377-21python19:45:172
249940,0watchdog/230676-21fschecks_count00:40:062
249940,0watchdog/213387-21ssh00:45:462
249940,0watchdog/20-21swapper/223:45:132
179940,0migration/19659-21kthreadcore21:20:101
179940,0migration/18703-21kthreadcore21:55:121
179940,0migration/18284-21unixbench-2d22:50:191
179940,0migration/14941-21latency19:45:131
179940,0migration/13759-21fschecks_time20:55:071
179940,0migration/129346-21kthreadcore21:50:111
179940,0migration/128624-21fschecks_time19:20:061
179940,0migration/12670-21aten_r1power_fr19:25:061
179940,0migration/124870-21kthreadcore00:35:131
179940,0migration/122555-21runrttasks23:38:091
179940,0migration/121563-21kthreadcore23:55:131
179940,0migration/119713-21taskset23:16:261
179940,0migration/117948-21gltestperf19:35:081
179940,0migration/115464-21kthreadcore00:10:141
179940,0migration/113833-21fschecks_time00:30:071
179940,0migration/112796-21munin-node20:35:161
179940,0migration/110062-21aten_r1power_en21:40:071
179940,0migration/110008-21irqrtprio23:50:101
169940,0watchdog/18206-21nfs4_client00:05:141
169940,0watchdog/15860-21expr23:45:131
169940,0watchdog/129618-21kthreadcore21:30:131
169940,0watchdog/11389-21kthreadcore00:20:141
169940,0watchdog/111414-21grep22:35:131
169940,0watchdog/110777-21ssh23:10:331
169940,0watchdog/10-21swapper/123:00:051
169940,0watchdog/10-21swapper/100:40:101
149940,0migration/07476-21sh23:47:520
149940,0migration/031614-21kthreadcore21:50:110
149940,0migration/019829-21kthreadcore19:35:110
149940,0migration/014985-21kthreadcore22:55:150
329930,0watchdog/30-21swapper/320:55:253
329930,0watchdog/30-21swapper/320:04:573
29815030,0irq/29-eth0-tx-0-21swapper/223:19:592
29815030,0irq/29-eth0-tx-0-21swapper/200:00:072
29805030,0irq/28-eth0-rx-0-21swapper/320:50:063
29805030,0irq/28-eth0-rx-0-21swapper/320:29:543
29805030,0irq/28-eth0-rx-0-21swapper/319:50:063
29805030,0irq/28-eth0-rx-0-21swapper/319:20:063
275729933,0cyclictest3571-21lldpd19:50:282
275729933,0cyclictest0-21swapper/220:20:122
275729932,0cyclictest3524-21snmpd20:41:262
275729932,0cyclictest25306-21awk19:40:072
275729931,0cyclictest1535-21kthreadcore21:15:112
275729930,0cyclictest28628-21grep20:25:122
275729930,0cyclictest10710-21diskstats21:00:052
275639932,0cyclictest13904-21cut19:55:071
275639930,0cyclictest30522-21perl22:10:081
275599933,0cyclictest19786-21kworker/0:023:34:560
275599933,0cyclictest19786-21kworker/0:023:25:180
275599933,0cyclictest19786-21kworker/0:023:04:560
275599933,0cyclictest19786-21kworker/0:022:50:030
275599933,0cyclictest19786-21kworker/0:000:35:240
275599933,0cyclictest19786-21kworker/0:000:24:580
249930,0watchdog/20-21swapper/220:50:092
169930,0watchdog/17119-21interrupts22:15:091
169930,0watchdog/15206-21ssh23:28:011
169930,0watchdog/10-21swapper/123:30:211
169930,0watchdog/10-21swapper/121:44:571
169930,0watchdog/10-21swapper/120:45:131
169930,0watchdog/10-21swapper/119:50:091
169930,0watchdog/10-21swapper/100:00:061
329920,0watchdog/30-21swapper/320:20:013
275639921,0cyclictest20-21ksoftirqd/122:29:541
275639920,0cyclictest24250-21aten_r1power_cu19:40:031
275639920,0cyclictest0-21swapper/121:34:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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