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2026-08-10 - 20:58
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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 all highest latencies:
System rack1slot2.osadl.org (updated Mon Aug 10, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1622524535,0sleep10-21swapper/107:25:531
1634023927,0sleep20-21swapper/207:27:102
1638823727,0sleep30-21swapper/307:27:473
1628023026,0sleep00-21swapper/007:26:280
166439976,0cyclictest20170-40yum-updatesd-he12:31:192
8305060,0irq/26-0000:00:13829-21fschecks_count07:50:043
339960,0migration/38724-21sh10:30:203
339960,0migration/37793-21sh11:45:573
339960,0migration/35767-21sh11:25:293
339960,0migration/332525-21sh11:43:523
339960,0migration/332444-21munin-node10:10:033
339960,0migration/328833-21munin-node12:20:073
339960,0migration/326898-21sh12:16:193
339960,0migration/324455-21cpuspeed_turbos08:20:053
339960,0migration/321024-21sh12:33:473
339960,0migration/319893-21sh10:57:363
339960,0migration/314822-21taskset11:31:593
329960,0watchdog/330674-21sh10:05:313
29815060,0irq/29-eth0-tx-0-21swapper/009:30:180
29805060,0irq/28-eth0-rx-31528-21grep10:45:113
29805060,0irq/28-eth0-rx-23627-21munin-run10:04:523
29805060,0irq/28-eth0-rx-23627-21munin-run10:04:523
19160,0ktimersoftd/10-21swapper/109:10:051
149960,0migration/06209-21aten_r1power_po07:45:050
149960,0migration/04856-21sh11:08:080
149960,0migration/028455-21sh12:20:060
149960,0migration/024493-21sh10:21:540
149960,0migration/021121-21sh11:15:430
149960,0migration/01911-21unixbench_singl10:45:180
8305050,0irq/26-0000:00:8843-21ssh10:30:422
4150,0ktimersoftd/00-21swapper/010:28:550
35150,0ktimersoftd/30-21swapper/310:42:183
339950,0migration/39730-21diskmemload10:15:083
339950,0migration/3899-21kthreadcore07:40:093
339950,0migration/37963-21kthreadcore12:05:113
339950,0migration/37303-21munin-node07:45:103
339950,0migration/36441-21aten_r1power_vo08:30:043
339950,0migration/33897-21if_eth108:50:083
339950,0migration/329463-21kthreadcore08:00:083
339950,0migration/328146-21kthreadcore12:00:103
339950,0migration/327861-21kthreadcore09:05:093
339950,0migration/327328-21kthreadcore09:45:103
339950,0migration/326019-21cpuspeed_turbos10:25:053
339950,0migration/32488-21latency_hist08:04:523
339950,0migration/32021-21munin-node08:45:173
339950,0migration/320034-21kthreadcore11:15:113
339950,0migration/318631-21irqcore10:20:103
339950,0migration/316567-21kthreadcore08:35:093
339950,0migration/316162-21kthreadcore12:10:123
339950,0migration/315231-21kthreadcore08:55:113
339950,0migration/314925-21kthreadcore11:50:123
339950,0migration/314808-21munin-node09:20:093
339950,0migration/310844-21cpuspeed_turbos10:35:043
329950,0watchdog/39894-21tr11:10:113
329950,0watchdog/332499-21perl09:10:073
329950,0watchdog/327834-21tr12:35:123
329950,0watchdog/325552-21cut07:55:113
29815050,0irq/29-eth0-tx-6468-21munin-node09:15:100
29815050,0irq/29-eth0-tx-31877-21ssh11:41:582
29815050,0irq/29-eth0-tx-30136-21ssh11:22:102
29815050,0irq/29-eth0-tx-27871-21diskmemload10:50:432
29815050,0irq/29-eth0-tx-2535-21munin-node08:05:080
29815050,0irq/29-eth0-tx-20767-21timerwakeupswit11:15:172
29815050,0irq/29-eth0-tx-13286-21munin-node07:50:120
29815050,0irq/29-eth0-tx-0-21swapper/211:50:112
29815050,0irq/29-eth0-tx-0-21swapper/210:10:062
29815050,0irq/29-eth0-tx-0-21swapper/209:39:122
29815050,0irq/29-eth0-tx-0-21swapper/007:55:040
29805050,0irq/28-eth0-rx-7089-21cut12:45:073
29805050,0irq/28-eth0-rx-6314-21runrttasks08:15:023
29805050,0irq/28-eth0-rx-4052-21cpu10:50:043
29805050,0irq/28-eth0-rx-30178-21sh12:40:013
29805050,0irq/28-eth0-rx-28847-21ssh11:03:483
29805050,0irq/28-eth0-rx-22012-21grep09:00:113
29805050,0irq/28-eth0-rx-0-21swapper/312:51:093
29805050,0irq/28-eth0-rx-0-21swapper/312:25:123
29805050,0irq/28-eth0-rx-0-21swapper/311:55:113
29805050,0irq/28-eth0-rx-0-21swapper/311:39:513
29805050,0irq/28-eth0-rx-0-21swapper/309:50:113
259950,0migration/29976-21kthreadcore12:45:112
259950,0migration/24990-21sh09:50:512
259950,0migration/232177-21munin-node10:25:172
259950,0migration/230803-21kthreadcore12:00:112
259950,0migration/220146-21kthreadcore12:50:122
259950,0migration/219663-21sh10:56:552
259950,0migration/219375-21kthreadcore09:20:112
259950,0migration/218905-21latency_hist10:39:522
259950,0migration/218127-21diskmemload10:20:072
259950,0migration/217124-21latency_hist08:59:522
259950,0migration/214189-21gltestperf07:50:042
249950,0watchdog/220726-21perl12:15:072
19150,0ktimersoftd/10-21swapper/112:09:021
19150,0ktimersoftd/10-21swapper/110:28:551
179950,0migration/19352-21kthreadcore09:55:081
179950,0migration/17186-21fschecks_time09:15:081
179950,0migration/15520-21kthreadcore11:45:101
179950,0migration/132118-21fschecks_time08:25:061
179950,0migration/129378-21kthreadcore10:45:101
179950,0migration/127497-21taskset08:42:481
179950,0migration/127100-21munin-node11:00:141
179950,0migration/119473-21sh12:30:161
179950,0migration/118417-21kthreadcore09:20:111
179950,0migration/111352-21aten_r1power_po12:10:041
179950,0migration/110953-21kthreadcore11:10:121
166439950,0cyclictest0-21swapper/210:42:412
166439950,0cyclictest0-21swapper/209:57:552
166439950,0cyclictest0-21swapper/209:44:502
166359955,0cyclictest27871-21diskmemload12:01:181
166359954,0cyclictest24738-21awk12:55:081
166359950,0cyclictest0-21swapper/112:38:311
166359950,0cyclictest0-21swapper/112:20:231
166359950,0cyclictest0-21swapper/109:47:081
166349955,0cyclictest0-21swapper/011:41:570
166349953,0cyclictest19715-21kworker/0:209:40:090
166349950,0cyclictest0-21swapper/012:33:490
166349950,0cyclictest0-21swapper/011:52:500
169950,0watchdog/117345-21df08:15:031
149950,0migration/09811-21taskset08:10:010
149950,0migration/08279-21kthreadcore08:50:110
149950,0migration/07405-21kthreadcore10:30:110
149950,0migration/07002-21munin-node11:45:120
149950,0migration/04466-21switchtime09:50:180
149950,0migration/03689-21hwlatdetect12:05:070
149950,0migration/032320-21sh11:25:070
149950,0migration/032214-21fschecks_time08:25:070
149950,0migration/028615-21fschecks_time08:45:050
149950,0migration/026412-21latency_hist11:59:520
149950,0migration/025813-21kthreadcore11:00:110
149950,0migration/025763-21kthreadcore12:35:090
149950,0migration/02550-21kthreadcore12:40:110
149950,0migration/024698-21fschecks_time07:35:050
149950,0migration/024635-21kthreadcore08:40:100
149950,0migration/024229-21kthreadcore09:45:090
149950,0migration/024059-21sh10:40:100
149950,0migration/023224-21taskset11:36:360
149950,0migration/020922-21aten_r1power_cu09:25:020
149950,0migration/018927-21gltestperf11:55:070
149950,0migration/01801-21kthreadcore07:40:090
149950,0migration/017446-21fschecks_count07:30:040
149950,0migration/015199-21kthreadcore10:35:100
149950,0migration/014758-21taskset11:31:480
149950,0migration/013439-21hddtemp_smartct10:55:070
149950,0migration/010179-21kthreadcore12:45:110
8305040,0irq/26-0000:00:0-21swapper/209:59:522
8305040,0irq/26-0000:00:0-21swapper/209:59:522
339940,0migration/328085-21kthreadcore07:35:093
339940,0migration/324195-21kthreadcore08:40:103
339940,0migration/323576-21ksmtuned12:55:023
339940,0migration/323475-21taskset07:31:123
339940,0migration/31937-21kthreadcore08:25:103
339940,0migration/315649-21kthreadcore09:40:093
329940,0watchdog/321031-21stty09:25:033
329940,0watchdog/30-21swapper/309:35:233
29815040,0irq/29-eth0-tx-9062-21ssh12:05:162
29815040,0irq/29-eth0-tx-31314-21ssh11:25:012
29815040,0irq/29-eth0-tx-21712-21ssh09:44:592
29815040,0irq/29-eth0-tx-1545-21ssh10:45:152
29815040,0irq/29-eth0-tx-11707-21ssh12:10:062
29815040,0irq/29-eth0-tx-0-21swapper/212:25:502
29815040,0irq/29-eth0-tx-0-21swapper/212:20:272
29815040,0irq/29-eth0-tx-0-21swapper/211:54:542
29815040,0irq/29-eth0-tx-0-21swapper/211:45:012
29815040,0irq/29-eth0-tx-0-21swapper/211:36:152
29815040,0irq/29-eth0-tx-0-21swapper/211:05:182
29815040,0irq/29-eth0-tx-0-21swapper/210:15:092
29815040,0irq/29-eth0-tx-0-21swapper/009:05:110
29815040,0irq/29-eth0-tx-0-21swapper/007:59:550
29805040,0irq/28-eth0-rx-28295-21cpu09:30:043
29805040,0irq/28-eth0-rx-0-21swapper/311:20:093
29805040,0irq/28-eth0-rx-0-21swapper/311:09:283
29805040,0irq/28-eth0-rx-0-21swapper/309:55:083
259940,0migration/28665-21kthreadcore09:15:122
259940,0migration/28638-21kthreadcore08:30:102
259940,0migration/24900-21open_files07:40:122
259940,0migration/232426-21idleruntime08:25:082
259940,0migration/229204-21kthreadcore10:05:112
259940,0migration/227629-21kthreadcore09:05:092
259940,0migration/227020-21kthreadcore08:20:102
259940,0migration/226802-21kthreadcore07:35:082
259940,0migration/223662-21sh12:55:032
259940,0migration/218820-21kthreadcore07:30:082
259940,0migration/217203-21kthreadcore08:35:092
249940,0watchdog/228013-21sh08:45:032
249940,0watchdog/227831-21pmu-power12:35:122
249940,0watchdog/22753-21kthreadcore12:40:122
249940,0watchdog/226930-21python08:40:152
249940,0watchdog/20-21swapper/211:31:032
249940,0watchdog/20-21swapper/211:00:112
249940,0watchdog/20-21swapper/209:10:112
249940,0watchdog/20-21swapper/208:10:072
249940,0watchdog/20-21swapper/207:45:112
179940,0migration/19237-21kthreadcore07:45:111
179940,0migration/18813-21ntp_offset08:50:131
179940,0migration/132061-21kthreadcore08:00:091
179940,0migration/12438-21fschecks_count10:30:061
179940,0migration/121779-21fschecks_time09:25:051
179940,0migration/112980-21kthreadcore10:35:091
179940,0migration/111636-21kthreadcore08:10:081
166439943,0cyclictest6808-21awk11:10:082
166439943,0cyclictest3571-21lldpd08:08:242
166439943,0cyclictest3571-21lldpd07:59:552
166439943,0cyclictest3524-21snmpd08:57:272
166439943,0cyclictest3524-21snmpd08:50:272
166439943,0cyclictest29189-21awk09:30:082
166359944,0cyclictest0-21swapper/112:50:391
166359943,0cyclictest8619-21awk11:30:061
166359943,0cyclictest7653-21awk12:45:091
166359943,0cyclictest7352-21awk08:30:071
166359943,0cyclictest3571-21lldpd12:28:281
166359943,0cyclictest3571-21lldpd12:14:581
166359943,0cyclictest3571-21lldpd11:04:561
166359943,0cyclictest3571-21lldpd10:39:561
166359943,0cyclictest3571-21lldpd10:04:261
166359943,0cyclictest3571-21lldpd10:04:261
166359943,0cyclictest3571-21lldpd09:07:261
166359943,0cyclictest3571-21lldpd08:20:541
166359943,0cyclictest3524-21snmpd09:32:271
166359943,0cyclictest32152-21sadc10:09:521
166359943,0cyclictest25690-21awk11:40:091
166359943,0cyclictest23861-21awk11:20:071
166359943,0cyclictest21565-21awk07:55:081
166359943,0cyclictest17919-21awk07:30:061
166359943,0cyclictest10505-21awk11:50:091
166349944,0cyclictest0-21swapper/009:35:020
166349943,0cyclictest7382-21awk08:30:080
166349943,0cyclictest3571-21lldpd12:52:580
166349943,0cyclictest3571-21lldpd12:24:580
166349943,0cyclictest3250-21irqbalance08:23:080
166349943,0cyclictest19715-21kworker/0:208:36:330
166349942,0cyclictest5590-21kworker/0:112:59:000
166349942,0cyclictest20138-21kworker/0:110:50:090
166349942,0cyclictest19715-21kworker/0:210:00:070
166349942,0cyclictest19715-21kworker/0:210:00:070
169940,0watchdog/15333-21python11:25:151
169940,0watchdog/13808-21iostat_ios08:05:071
169940,0watchdog/12752-21kthreadcore12:40:121
169940,0watchdog/123626-21ssh11:37:471
169940,0watchdog/121251-21ssh09:44:191
169940,0watchdog/120227-21memory11:15:111
169940,0watchdog/114569-21if_err_eth1.208:35:071
169940,0watchdog/112002-21ssh09:38:031
169940,0watchdog/10-21swapper/110:55:111
169940,0watchdog/10-21swapper/110:50:111
169940,0watchdog/10-21swapper/108:45:031
329930,0watchdog/30-21swapper/308:10:073
29805030,0irq/28-eth0-rx-0-21swapper/309:15:063
249930,0watchdog/20-21swapper/207:55:112
166439932,0cyclictest3524-21snmpd08:14:572
166359933,0cyclictest3571-21lldpd08:57:261
166359932,0cyclictest17845-21cat11:54:521
166359930,0cyclictest32358-21date10:09:521
166359930,0cyclictest31275-21tune2fs09:50:071
166359930,0cyclictest29319-21tr07:35:091
166349933,0cyclictest28963-21kworker/0:012:09:540
166349933,0cyclictest23835-21kworker/0:110:08:070
166349933,0cyclictest19715-21kworker/0:209:20:010
166349933,0cyclictest19715-21kworker/0:209:10:070
166349933,0cyclictest19715-21kworker/0:208:54:570
166349933,0cyclictest1010-21kworker/0:210:10:090
166349932,0cyclictest3524-21snmpd10:14:580
166349932,0cyclictest18012-21sed08:15:050
166349931,0cyclictest28963-21kworker/0:012:15:000
166349930,0cyclictest7576-21perl09:55:050
166349930,0cyclictest6464-21perl11:10:070
166349930,0cyclictest0-21swapper/009:00:060
169930,0watchdog/127871-21diskmemload10:20:191
169930,0watchdog/111967-21kthreadcore10:15:111
169930,0watchdog/10-21swapper/109:00:111
169930,0watchdog/10-21swapper/107:42:031
149930,0migration/029930-21sh11:21:330
166439920,0cyclictest20818-21sort09:24:522
166359921,0cyclictest13202-21latency_hist07:49:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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