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2026-03-20 - 16:34
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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 Fri Mar 20, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271660,0ktimersoftd/27347-21perf07:17:572
1334024939,0sleep10-21swapper/107:13:271
1424523329,0sleep00-21swapper/007:15:420
1414222824,0sleep30-21swapper/307:14:293
145289999,0cyclictest432-21ssh09:19:040
339960,0migration/34832-21irqcore10:38:233
339960,0migration/3314-21sh11:30:343
339960,0migration/322894-21needreboot12:38:263
339960,0migration/321279-21sh09:49:173
339960,0migration/315247-21sh11:19:473
339960,0migration/314015-21sh12:16:353
339960,0migration/310541-21sh09:26:403
29805060,0irq/28-eth0-rx-482-21ssh09:58:233
29805060,0irq/28-eth0-rx-30923-21ps08:13:233
29805060,0irq/28-eth0-rx-20768-21cat10:48:073
29805060,0irq/28-eth0-rx-15746-21cut11:38:263
29805060,0irq/28-eth0-rx-1196-21ssh12:47:423
145289960,0cyclictest0-21swapper/009:28:350
8305050,0irq/26-0000:00:9772-21sed12:33:242
8305050,0irq/26-0000:00:27449-21awk10:33:182
8305050,0irq/26-0000:00:21033-21sed12:03:072
339950,0migration/38319-21kthreadcore10:58:243
339950,0migration/37436-21taskset07:57:293
339950,0migration/36753-21kthreadcore11:53:243
339950,0migration/36311-21fschecks_time09:43:213
339950,0migration/33364-21taskset07:28:353
339950,0migration/331230-21kthreadcore07:48:253
339950,0migration/330135-21fschecks_time09:38:213
339950,0migration/329277-21kthreadcore11:48:233
339950,0migration/328630-21munin-node08:08:323
339950,0migration/326955-21fschecks_time09:18:213
339950,0migration/325395-21taskset08:30:153
339950,0migration/318327-21taskset10:27:513
339950,0migration/317430-21sendmail_mailtr07:38:283
339950,0migration/317299-21mdstat08:23:253
339950,0migration/317183-21kthreadcore10:43:253
339950,0migration/316608-21kthreadcore12:18:243
339950,0migration/314191-21munin-node08:43:313
339950,0migration/311457-21aten_r1power_cu09:28:173
339950,0migration/310193-21munin-node07:33:283
329950,0watchdog/324720-21cut12:23:233
329950,0watchdog/324403-21munin-node07:43:263
329950,0watchdog/320953-21python07:18:303
329950,0watchdog/30-21swapper/307:58:263
29815050,0irq/29-eth0-tx-5645-21cat12:28:252
29815050,0irq/29-eth0-tx-4021-21ssh09:39:302
29815050,0irq/29-eth0-tx-2786-21ssh11:13:252
29815050,0irq/29-eth0-tx-26838-21ssh11:46:582
29815050,0irq/29-eth0-tx-24138-21ssh12:40:122
29815050,0irq/29-eth0-tx-22937-21munin-node09:53:252
29815050,0irq/29-eth0-tx-18717-21munin-node10:28:282
29815050,0irq/29-eth0-tx-17817-21sensors09:28:292
29815050,0irq/29-eth0-tx-1552-21switchtime11:48:312
29815050,0irq/29-eth0-tx-14849-21munin-node12:18:242
29815050,0irq/29-eth0-tx-14312-21ssh09:48:152
29815050,0irq/29-eth0-tx-0-21swapper/212:25:482
29815050,0irq/29-eth0-tx-0-21swapper/211:18:142
29815050,0irq/29-eth0-tx-0-21swapper/210:40:252
29815050,0irq/29-eth0-tx-0-21swapper/210:27:012
29815050,0irq/29-eth0-tx-0-21swapper/210:04:382
29815050,0irq/29-eth0-tx-0-21swapper/008:28:190
29805050,0irq/28-eth0-rx-5482-21cut10:18:253
29805050,0irq/28-eth0-rx-403-21if_err_eth1.311:13:223
29805050,0irq/28-eth0-rx-28435-21if_eth010:33:213
29805050,0irq/28-eth0-rx-26540-21ssh11:46:073
29805050,0irq/28-eth0-rx-26214-21latency09:33:263
29805050,0irq/28-eth0-rx-26214-21latency09:33:263
29805050,0irq/28-eth0-rx-17166-21entropy11:23:223
29805050,0irq/28-eth0-rx-0-21swapper/312:10:063
29805050,0irq/28-eth0-rx-0-21swapper/312:03:523
29805050,0irq/28-eth0-rx-0-21swapper/311:37:553
29805050,0irq/28-eth0-rx-0-21swapper/311:11:043
29805050,0irq/28-eth0-rx-0-21swapper/311:06:093
259950,0migration/23466-21latency12:08:272
259950,0migration/224851-21kthreadcore07:23:232
259950,0migration/220291-21sh09:33:142
259950,0migration/220291-21sh09:33:142
259950,0migration/217432-21kthreadcore10:43:262
179950,0migration/18528-21needreboot09:23:251
179950,0migration/123444-21munin-node12:38:321
179950,0migration/12176-21latency_hist09:23:071
179950,0migration/119840-21kthreadcore10:08:261
179950,0migration/119549-21taskset09:31:581
179950,0migration/117404-21kthreadcore12:18:251
179950,0migration/114661-21sh11:38:261
179950,0migration/111998-21munin-node09:43:291
145289955,0cyclictest28148-21kworker/0:107:31:260
145289955,0cyclictest21299-21kworker/0:110:03:140
145289955,0cyclictest21299-21kworker/0:109:58:220
145289955,0cyclictest19920-21kworker/0:112:34:570
145289955,0cyclictest19920-21kworker/0:112:28:230
145289955,0cyclictest19920-21kworker/0:112:13:230
145289955,0cyclictest0-21swapper/011:45:250
145289955,0cyclictest0-21swapper/011:08:510
145289955,0cyclictest0-21swapper/010:21:330
145289955,0cyclictest0-21swapper/009:13:270
145289950,0cyclictest0-21swapper/012:07:200
149950,0migration/0506-21kthreadcore09:38:250
149950,0migration/04241-21kthreadcore09:23:230
149950,0migration/0394-21kthreadcore12:08:260
149950,0migration/030571-21kthreadcore07:48:240
149950,0migration/028721-21kthreadcore12:43:250
149950,0migration/02838-21kthreadcore08:38:240
149950,0migration/022486-21df_abs08:08:190
149950,0migration/021033-21fschecks_time09:33:200
149950,0migration/021033-21fschecks_time09:33:200
149950,0migration/020229-21kthreadcore08:48:240
149950,0migration/020014-21kthreadcore12:18:250
149950,0migration/019786-21munin-node10:28:220
149950,0migration/018381-21kthreadcore11:58:270
149950,0migration/01683-21kthreadcore08:58:260
149950,0migration/016653-21sh11:38:320
149950,0migration/014748-21df_abs09:48:200
149950,0migration/011746-21sh10:42:320
149950,0migration/011171-21latency_hist07:38:070
149950,0migration/010601-21kthreadcore08:43:240
8305040,0irq/26-0000:00:0-21swapper/211:38:072
8305040,0irq/26-0000:00:0-21swapper/208:43:072
339940,0migration/332646-21kthreadcore08:58:253
339940,0migration/329203-21sh09:53:283
339940,0migration/318530-21kthreadcore08:48:233
339940,0migration/315106-21cpu08:03:193
329940,0watchdog/35368-21if_eth1.208:18:223
329940,0watchdog/3319792sleep312:28:113
329940,0watchdog/329638-21cut10:53:183
329940,0watchdog/321751-21kthreadcore09:13:263
329940,0watchdog/30-21swapper/310:03:183
29815040,0irq/29-eth0-tx-6171-21ssh12:13:102
29815040,0irq/29-eth0-tx-3917-21ssh10:53:342
29815040,0irq/29-eth0-tx-23087-21ssh11:08:152
29815040,0irq/29-eth0-tx-22361-21aten2.4-expect08:53:170
29815040,0irq/29-eth0-tx-0-21swapper/212:43:102
29815040,0irq/29-eth0-tx-0-21swapper/211:33:082
29815040,0irq/29-eth0-tx-0-21swapper/211:28:152
29815040,0irq/29-eth0-tx-0-21swapper/211:23:232
29815040,0irq/29-eth0-tx-0-21swapper/210:58:242
29815040,0irq/29-eth0-tx-0-21swapper/210:18:212
29815040,0irq/29-eth0-tx-0-21swapper/210:13:472
29815040,0irq/29-eth0-tx-0-21swapper/209:58:082
29815040,0irq/29-eth0-tx-0-21swapper/007:58:170
29815040,0irq/29-eth0-tx-0-21swapper/007:23:230
29805040,0irq/28-eth0-rx-14051-21irqrtprio11:58:253
29805040,0irq/28-eth0-rx-0-21swapper/312:33:423
29805040,0irq/28-eth0-rx-0-21swapper/310:28:183
29805040,0irq/28-eth0-rx-0-21swapper/310:13:293
29805040,0irq/28-eth0-rx-0-21swapper/310:08:183
259940,0migration/28872-21kthreadcore08:18:242
259940,0migration/28781-21kthreadcore07:33:252
259940,0migration/26721-21kthreadcore09:23:242
259940,0migration/230640-21munin-node08:58:232
259940,0migration/22966-21sendmail_mailtr07:28:262
259940,0migration/229530-21kthreadcore09:18:252
259940,0migration/227789-21kthreadcore08:08:252
259940,0migration/223695-21kthreadcore09:13:272
259940,0migration/222888-21kthreadcore07:43:242
259940,0migration/219863-21kthreadcore10:08:262
259940,0migration/218094-21taskset08:24:222
259940,0migration/215518-21df_abs08:48:182
259940,0migration/213295-21kthreadcore07:58:232
259940,0migration/211726-21aten_r1power_fr09:08:182
249940,0watchdog/220781-21memory08:03:262
249940,0watchdog/217918-21kthreadcore11:58:272
249940,0watchdog/217207-21nfs_client07:38:262
249940,0watchdog/215659-21if_eth111:03:222
249940,0watchdog/20-21swapper/210:48:222
179940,0migration/18006-21kthreadcore11:53:241
179940,0migration/17082-21ksmtuned11:16:051
179940,0migration/16481-21kthreadcore10:18:251
179940,0migration/16381-21cpu12:13:171
179940,0migration/1617-21aten_r1power_cu08:38:181
179940,0migration/14392-21runrttasks09:03:091
179940,0migration/13857-21taskset08:59:351
179940,0migration/131380-21kthreadcore08:13:231
179940,0migration/131121-21irqcore12:08:251
179940,0migration/13090-21kthreadcore07:53:251
179940,0migration/130310-21fschecks_time10:53:201
179940,0migration/129926-21kthreadcore12:43:251
179940,0migration/129304-21kthreadcore07:48:241
179940,0migration/128586-21irqcore10:33:221
179940,0migration/126425-21diskmemload11:45:491
179940,0migration/125196-21unixbench_singl08:28:321
179940,0migration/124364-21kthreadcore08:08:241
179940,0migration/121564-21taskset08:04:151
179940,0migration/118330-21taskset09:09:521
179940,0migration/117016-21kthreadcore08:23:251
179940,0migration/116902-21kthreadcore08:48:231
179940,0migration/112407-21latency_hist11:58:071
179940,0migration/111657-21kthreadcore08:43:251
169940,0watchdog/17964-21hostname10:03:181
169940,0watchdog/130533-21irqrtprio07:28:221
169940,0watchdog/130449-21ssh12:24:311
169940,0watchdog/129257-21sh09:38:181
169940,0watchdog/117503-21tune2fs11:23:221
169940,0watchdog/10-21swapper/112:35:151
169940,0watchdog/10-21swapper/110:48:181
169940,0watchdog/10-21swapper/110:39:541
169940,0watchdog/10-21swapper/108:18:181
169940,0watchdog/10-21swapper/107:18:301
145309943,0cyclictest4904-21awk11:53:222
145309943,0cyclictest3571-21lldpd08:38:172
145309943,0cyclictest3571-21lldpd08:28:172
145309943,0cyclictest3571-21lldpd08:15:162
145309943,0cyclictest3571-21lldpd07:53:172
145309943,0cyclictest3571-21lldpd07:20:162
145309943,0cyclictest3524-21snmpd09:44:022
145309943,0cyclictest23512-21awk08:53:222
145299943,0cyclictest5078-21awk07:33:211
145299943,0cyclictest3571-21lldpd11:08:481
145299943,0cyclictest3571-21lldpd10:58:491
145299943,0cyclictest3571-21lldpd09:48:181
145299943,0cyclictest3571-21lldpd09:35:181
145299943,0cyclictest3571-21lldpd09:35:181
145299943,0cyclictest3571-21lldpd07:59:171
145299943,0cyclictest3571-21lldpd07:39:171
145299943,0cyclictest3524-21snmpd12:05:351
145299943,0cyclictest3524-21snmpd11:28:491
145299943,0cyclictest3524-21snmpd10:45:331
145299943,0cyclictest3524-21snmpd10:28:181
145299943,0cyclictest3524-21snmpd10:25:031
145299943,0cyclictest3524-21snmpd10:14:021
145299943,0cyclictest3524-21snmpd09:54:021
145299943,0cyclictest3524-21snmpd09:15:461
145299943,0cyclictest32612-21awk09:58:211
145299943,0cyclictest28624-21awk11:48:211
145299943,0cyclictest27008-21awk08:33:221
145299943,0cyclictest23464-21awk08:53:211
145299943,0cyclictest10033-21sadc11:38:071
145289944,0cyclictest8864-21kworker/0:010:14:160
145289944,0cyclictest8864-21kworker/0:010:08:260
145289944,0cyclictest28148-21kworker/0:108:23:180
145289944,0cyclictest2366-21kworker/0:211:34:290
145289944,0cyclictest2366-21kworker/0:211:28:550
145289944,0cyclictest2366-21kworker/0:211:24:150
145289944,0cyclictest2366-21kworker/0:211:18:230
145289944,0cyclictest2366-21kworker/0:211:13:230
145289944,0cyclictest2366-21kworker/0:211:04:110
145289944,0cyclictest2366-21kworker/0:211:00:250
145289944,0cyclictest2366-21kworker/0:210:55:210
145289944,0cyclictest2366-21kworker/0:210:45:350
145289944,0cyclictest2366-21kworker/0:210:23:240
145289944,0cyclictest19920-21kworker/0:112:38:470
145289944,0cyclictest19920-21kworker/0:111:53:270
145289944,0cyclictest0-21swapper/012:23:540
145289944,0cyclictest0-21swapper/009:44:020
145289943,0cyclictest5357-21awk08:18:220
145289943,0cyclictest3250-21irqbalance10:34:040
145289943,0cyclictest26914-21awk08:33:210
145289943,0cyclictest22047-21awk10:48:220
145289943,0cyclictest1574-21awk07:53:230
145289943,0cyclictest12785-21awk09:08:230
149940,0migration/0982-21kthreadcore11:48:240
149940,0migration/08076-21kthreadcore07:33:240
149940,0migration/032732-21kthreadcore08:13:230
149940,0migration/024294-21irqcore09:53:230
149940,0migration/018208-21turbostat07:48:020
329930,0watchdog/30-21swapper/309:08:183
329930,0watchdog/30-21swapper/309:03:263
329930,0watchdog/30-21swapper/308:38:183
29805030,0irq/28-eth0-rx-0-21swapper/308:53:173
29805030,0irq/28-eth0-rx-0-21swapper/307:23:173
179930,0migration/118540-21aten_r1power_po07:43:181
169930,0watchdog/10-21swapper/111:03:221
145309933,0cyclictest3571-21lldpd08:35:472
145309932,0cyclictest3571-21lldpd09:03:182
145309932,0cyclictest26702-21awk07:48:222
145299932,0cyclictest9181-21awk11:18:221
145299932,0cyclictest678-21awk12:28:221
145299932,0cyclictest3571-21lldpd07:23:171
145289933,0cyclictest28148-21kworker/0:108:03:200
145289930,0cyclictest0-21swapper/009:03:240
145289930,0cyclictest0-21swapper/007:18:270
29805020,0irq/28-eth0-rx-0-21swapper/308:33:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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