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2026-08-21 - 17:01
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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 Aug 21, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1495427776,0sleep20-21swapper/207:28:262
351670,0ktimersoftd/38043-21perf07:30:353
1441423534,0sleep10-21swapper/107:26:091
1490423127,0sleep00-21swapper/007:27:520
152249970,0cyclictest0-21swapper/110:46:031
4160,0ktimersoftd/00-21swapper/008:11:030
329960,0watchdog/322244-21grep12:55:583
29805060,0irq/28-eth0-rx-3900-21tr10:11:043
152259960,0cyclictest0-21swapper/211:01:142
152249965,0cyclictest9987-21grep10:35:591
152239960,0cyclictest16089-21ssh12:11:090
149960,0migration/07711-21kthreadcore09:56:030
149960,0migration/022822-21kthreadcore09:26:030
149960,0migration/018144-21sh10:57:480
4150,0ktimersoftd/00-21swapper/011:06:450
339950,0migration/39002-21sh12:09:183
339950,0migration/38690-21smart_sda10:51:093
339950,0migration/37333-21sh10:31:303
339950,0migration/36930-21kthreadcore12:46:023
339950,0migration/34719-21kthreadcore12:26:053
339950,0migration/332074-21kthreadcore09:31:033
339950,0migration/331600-21unixbench_multi12:01:113
339950,0migration/329455-21kthreadcore08:46:023
339950,0migration/327308-21sh09:47:073
339950,0migration/324232-21kthreadcore10:06:033
339950,0migration/322000-21kthreadcore11:01:033
339950,0migration/319028-21sendmail_mailst11:16:083
339950,0migration/312746-21taskset09:58:113
339950,0migration/312716-21irqcore09:41:033
339950,0migration/312212-21taskset09:20:553
339950,0migration/312020-21munin-node11:31:053
339950,0migration/311013-21munin-node12:11:043
329950,0watchdog/38549-21cut10:16:013
329950,0watchdog/34395-21cpuspeed_turbos11:10:573
329950,0watchdog/330638-21python10:26:093
329950,0watchdog/322283-21ssh11:38:573
329950,0watchdog/312823-21interrupts12:31:023
329950,0watchdog/30-21swapper/312:16:023
329950,0watchdog/30-21swapper/311:21:013
29815050,0irq/29-eth0-tx-4988-21munin-node09:16:030
29815050,0irq/29-eth0-tx-26869-21munin-node12:21:022
29815050,0irq/29-eth0-tx-1055-21munin-node08:06:130
29805050,0irq/28-eth0-rx-938-21kthreadcore11:26:043
29805050,0irq/28-eth0-rx-559-21irqcore11:46:033
29805050,0irq/28-eth0-rx-30742-21taskset11:43:523
29805050,0irq/28-eth0-rx-30742-21taskset11:43:523
29805050,0irq/28-eth0-rx-2498-21sed08:51:023
29805050,0irq/28-eth0-rx-20253-21python10:01:103
29805050,0irq/28-eth0-rx-1870-21python11:06:083
29805050,0irq/28-eth0-rx-17918-21kthreadcore09:01:043
29805050,0irq/28-eth0-rx-1761-21kthreadcore09:11:053
29805050,0irq/28-eth0-rx-17226-21mailstats10:56:083
29805050,0irq/28-eth0-rx-0-21swapper/312:51:513
29805050,0irq/28-eth0-rx-0-21swapper/312:42:033
29805050,0irq/28-eth0-rx-0-21swapper/312:40:323
29805050,0irq/28-eth0-rx-0-21swapper/312:22:363
29805050,0irq/28-eth0-rx-0-21swapper/311:53:443
29805050,0irq/28-eth0-rx-0-21swapper/310:45:593
29805050,0irq/28-eth0-rx-0-21swapper/310:36:033
29805050,0irq/28-eth0-rx-0-21swapper/310:22:473
29805050,0irq/28-eth0-rx-0-21swapper/309:51:123
29805050,0irq/28-eth0-rx-0-21swapper/309:39:243
29805050,0irq/28-eth0-rx-0-21swapper/308:01:103
249950,0watchdog/227060-21df_abs09:30:572
19150,0ktimersoftd/10-21swapper/111:06:451
179950,0migration/17356-21munin-node08:06:091
179950,0migration/15451-21kthreadcore12:26:051
179950,0migration/129133-21munin-node12:40:591
179950,0migration/119075-21taskset11:16:111
179950,0migration/119002-21latency_hist08:40:461
179950,0migration/118813-21kthreadcore09:01:041
179950,0migration/116073-21kthreadcore09:21:041
179950,0migration/115319-21taskset08:59:171
169950,0watchdog/113093-21iostat_ios07:51:011
152259955,0cyclictest0-21swapper/211:56:352
152259955,0cyclictest0-21swapper/211:15:072
152259955,0cyclictest0-21swapper/210:39:572
152259955,0cyclictest0-21swapper/209:38:282
152259955,0cyclictest0-21swapper/208:40:462
152259950,0cyclictest0-21swapper/209:41:092
152249950,0cyclictest0-21swapper/111:13:381
152249950,0cyclictest0-21swapper/110:34:421
152239955,0cyclictest0-21swapper/012:03:450
152239955,0cyclictest0-21swapper/011:53:580
152239955,0cyclictest0-21swapper/009:47:510
152239955,0cyclictest0-21swapper/009:01:010
152239950,0cyclictest0-21swapper/012:40:190
149950,0migration/09155-21kthreadcore07:46:020
149950,0migration/08636-21kthreadcore09:36:050
149950,0migration/0743-21taskset08:05:320
149950,0migration/06765-21kthreadcore12:26:050
149950,0migration/06108-21aten_r1power_en11:30:580
149950,0migration/05976-21sh10:13:000
149950,0migration/032151-21kthreadcore11:26:030
149950,0migration/029636-21kthreadcore09:31:020
149950,0migration/028414-21kthreadcore08:46:010
149950,0migration/02710-21kernelversion12:06:050
149950,0migration/025107-21kthreadcore08:21:030
149950,0migration/023244-21kthreadcore07:56:040
149950,0migration/022506-21runrttasks10:21:180
149950,0migration/022208-21cpuspeed_turbos12:55:580
149950,0migration/020976-21taskset10:02:170
149950,0migration/020035-21kthreadcore07:31:020
149950,0migration/017898-21munin-node07:51:050
149950,0migration/015787-21cpuspeed_turbos08:15:590
149950,0migration/015570-21gltestperf11:35:590
149950,0migration/015076-21kthreadcore12:31:030
149950,0migration/014102-21kthreadcore08:56:050
149950,0migration/013325-21latency_hist12:50:460
149950,0migration/012559-21kthreadcore10:36:030
149950,0migration/012317-21aten_r1power_po09:20:580
8305040,0irq/26-0000:00:20099-21latency_hist09:45:462
8305040,0irq/26-0000:00:0-21swapper/308:15:463
8305040,0irq/26-0000:00:0-21swapper/307:48:263
8305040,0irq/26-0000:00:0-21swapper/307:36:033
339940,0migration/39285-21kthreadcore09:16:043
339940,0migration/39096-21fschecks_time08:10:583
329940,0watchdog/30-21swapper/310:41:053
329940,0watchdog/30-21swapper/308:06:053
29815040,0irq/29-eth0-tx-6676-21kthreadcore12:26:052
29815040,0irq/29-eth0-tx-28853-21tr12:01:042
29815040,0irq/29-eth0-tx-18872-21ssh12:32:482
29815040,0irq/29-eth0-tx-15753-21munin-node10:21:042
29815040,0irq/29-eth0-tx-13435-21munin-node12:50:592
29815040,0irq/29-eth0-tx-0-21swapper/212:45:582
29815040,0irq/29-eth0-tx-0-21swapper/212:10:582
29815040,0irq/29-eth0-tx-0-21swapper/212:05:592
29815040,0irq/29-eth0-tx-0-21swapper/211:34:262
29815040,0irq/29-eth0-tx-0-21swapper/211:22:412
29815040,0irq/29-eth0-tx-0-21swapper/211:16:152
29815040,0irq/29-eth0-tx-0-21swapper/211:07:252
29815040,0irq/29-eth0-tx-0-21swapper/210:32:162
29815040,0irq/29-eth0-tx-0-21swapper/210:26:552
29815040,0irq/29-eth0-tx-0-21swapper/210:15:572
29815040,0irq/29-eth0-tx-0-21swapper/210:11:302
29805040,0irq/28-eth0-rx-0-21swapper/311:55:523
29805040,0irq/28-eth0-rx-0-21swapper/308:36:043
259940,0migration/25653-21kthreadcore08:51:032
259940,0migration/231811-21kthreadcore10:46:042
259940,0migration/224889-21kthreadcore10:06:032
259940,0migration/22329-21munin-node10:50:572
259940,0migration/212267-21sh09:56:462
249940,0watchdog/26758-21cut08:06:052
249940,0watchdog/24118-21ssh09:53:092
249940,0watchdog/230752-21sh11:43:532
249940,0watchdog/230752-21sh11:43:532
249940,0watchdog/222247-21cpuspeed_turbos12:55:582
249940,0watchdog/217591-21ssh10:40:532
249940,0watchdog/213241-21if_err_eth009:21:012
249940,0watchdog/20-21swapper/212:41:062
249940,0watchdog/20-21swapper/207:56:052
179940,0migration/18406-21kthreadcore11:31:041
179940,0migration/16985-21kthreadcore09:36:041
179940,0migration/1441-21munin-node11:46:021
179940,0migration/129663-21taskset08:25:221
179940,0migration/129416-21df_abs09:50:591
179940,0migration/12902-21kthreadcore08:26:041
179940,0migration/12758-21kthreadcore11:26:041
179940,0migration/126702-21cpuspeed_turbos08:45:571
179940,0migration/125865-21unixbench-2d09:26:111
179940,0migration/125200-21kthreadcore09:06:031
179940,0migration/124303-21kthreadcore12:36:041
179940,0migration/123125-21fschecks_time10:05:591
179940,0migration/12288-21aten_r1power_cu10:50:571
179940,0migration/12264-21kthreadcore07:41:031
179940,0migration/119653-21kthreadcore07:31:021
179940,0migration/118586-21kthreadcore11:36:031
179940,0migration/116363-21kthreadcore10:01:051
179940,0migration/115504-21kthreadcore12:51:031
179940,0migration/114739-21kthreadcore12:31:031
179940,0migration/113342-21kthreadcore12:11:051
179940,0migration/112831-21taskset12:49:481
179940,0migration/112786-21kthreadcore10:56:031
179940,0migration/110600-21latency08:31:041
169940,0watchdog/126320-21rm12:20:021
169940,0watchdog/122724-21aten_r1power_fr07:35:571
169940,0watchdog/122573-21ssh10:21:291
169940,0watchdog/122245-21tr12:55:581
169940,0watchdog/114041-21ssh10:16:331
169940,0watchdog/10-21swapper/111:21:011
152259944,0cyclictest0-21swapper/212:15:492
152259943,0cyclictest9525-21awk08:56:022
152259943,0cyclictest904-21sadc08:50:462
152259943,0cyclictest6126-21awk09:16:022
152259943,0cyclictest397-21awk11:46:022
152259943,0cyclictest3524-21snmpd11:51:072
152259943,0cyclictest3524-21snmpd09:07:492
152259943,0cyclictest3524-21snmpd09:04:492
152259943,0cyclictest3524-21snmpd08:34:342
152259943,0cyclictest3524-21snmpd08:29:342
152259943,0cyclictest3524-21snmpd08:04:042
152259943,0cyclictest31165-21awk09:11:022
152259943,0cyclictest30837-21awk11:26:002
152259943,0cyclictest23678-21awk07:36:002
152259943,0cyclictest15023-21awk10:01:032
152259943,0cyclictest11940-21awk10:56:012
152259940,0cyclictest20178-21munin-node12:36:042
152259940,0cyclictest14613-21munin-node11:36:042
152249944,0cyclictest0-21swapper/112:03:271
152249944,0cyclictest0-21swapper/111:57:471
152249943,0cyclictest6102-21awk09:16:021
152249943,0cyclictest5822-21awk07:46:001
152249943,0cyclictest3571-21lldpd10:10:591
152249943,0cyclictest3524-21snmpd10:42:361
152249943,0cyclictest3524-21snmpd08:53:341
152249943,0cyclictest25394-21awk10:26:021
152249943,0cyclictest24290-21awk11:41:021
152249943,0cyclictest24290-21awk11:41:021
152249943,0cyclictest21253-21awk09:46:031
152249943,0cyclictest20566-21awk11:01:011
152249943,0cyclictest20271-21awk07:56:031
152249943,0cyclictest16657-21awk08:16:021
152249943,0cyclictest12573-21awk09:41:021
152239944,0cyclictest0-21swapper/012:42:220
152239944,0cyclictest0-21swapper/010:28:220
152239944,0cyclictest0-21swapper/010:17:010
152239944,0cyclictest0-21swapper/010:10:230
152239943,0cyclictest3571-21lldpd11:41:340
152239943,0cyclictest3571-21lldpd11:41:340
152239943,0cyclictest3571-21lldpd09:13:290
152239943,0cyclictest3250-21irqbalance11:21:530
152239943,0cyclictest3250-21irqbalance11:19:130
152239943,0cyclictest3250-21irqbalance10:42:430
152239943,0cyclictest3250-21irqbalance10:32:230
152239943,0cyclictest3250-21irqbalance09:52:420
152239943,0cyclictest3250-21irqbalance08:35:520
152239943,0cyclictest3250-21irqbalance07:40:520
152239943,0cyclictest3250-21irqbalance07:37:120
152239943,0cyclictest27195-21awk10:46:010
152239943,0cyclictest26576-21sadc12:20:460
149940,0migration/07996-21kthreadcore11:11:030
149940,0migration/07753-21kthreadcore10:51:050
149940,0migration/06663-21kthreadcore08:31:030
149940,0migration/06330-21kthreadcore08:51:040
149940,0migration/031905-21kthreadcore12:21:060
149940,0migration/024880-21kthreadcore09:06:020
149940,0migration/020545-21irqcore08:41:010
149940,0migration/014597-21kthreadcore09:41:040
8305030,0irq/26-0000:00:0-21swapper/307:31:173
329930,0watchdog/30-21swapper/309:25:573
329930,0watchdog/30-21swapper/308:55:493
329930,0watchdog/30-21swapper/308:30:573
329930,0watchdog/30-21swapper/308:26:053
329930,0watchdog/30-21swapper/307:55:573
329930,0watchdog/30-21swapper/307:51:013
329930,0watchdog/30-21swapper/307:42:093
29805030,0irq/28-eth0-rx-0-21swapper/309:06:043
29805030,0irq/28-eth0-rx-0-21swapper/308:41:373
29805030,0irq/28-eth0-rx-0-21swapper/308:20:583
249930,0watchdog/20-21swapper/208:35:492
249930,0watchdog/20-21swapper/208:16:052
249930,0watchdog/20-21swapper/208:11:092
249930,0watchdog/20-21swapper/207:50:572
249930,0watchdog/20-21swapper/207:41:052
169930,0watchdog/12743-21kthreadcore09:11:051
169930,0watchdog/10-21swapper/111:50:571
169930,0watchdog/10-21swapper/109:30:571
152259933,0cyclictest3571-21lldpd07:34:582
152259930,0cyclictest20197-21perl09:25:592
152259930,0cyclictest10472-21sed07:46:032
152249932,0cyclictest9521-21awk08:11:011
152249932,0cyclictest3571-21lldpd12:06:051
152249932,0cyclictest3524-21snmpd08:43:071
152249932,0cyclictest27940-21awk12:21:031
152249932,0cyclictest11703-21sensors09:56:081
152249930,0cyclictest0-21swapper/108:02:051
152239933,0cyclictest5673-21kworker/0:012:45:560
152239933,0cyclictest5673-21kworker/0:011:55:520
152239933,0cyclictest1956-21kworker/0:208:25:550
152239932,0cyclictest31682-21ksmtuned11:45:560
152239930,0cyclictest20187-21perl11:00:590
249920,0watchdog/20-21swapper/208:20:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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