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2026-03-30 - 03:17
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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 Mon Mar 30, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1743424031,0sleep30-21swapper/319:17:263
1733023824,0sleep00-21swapper/019:16:150
1738623728,0sleep10-21swapper/119:16:521
1718123526,0sleep20-21swapper/219:14:292
35160,0ktimersoftd/30-21swapper/323:09:333
339960,0migration/36452-21sh23:53:393
339960,0migration/323936-21kthreadcore21:14:133
339960,0migration/32220-21munin-node23:29:173
339960,0migration/311851-21ntp_offset21:24:163
29805060,0irq/28-eth0-rx-32164-21kthreadcore00:24:153
29805060,0irq/28-eth0-rx-29137-21cut22:49:133
29805060,0irq/28-eth0-rx-19739-21users22:24:213
29805060,0irq/28-eth0-rx-0-21swapper/323:01:113
176319960,0cyclictest0-21swapper/223:14:392
176319960,0cyclictest0-21swapper/221:49:402
176299960,0cyclictest0-21swapper/022:04:170
149960,0migration/04414-21timerandwakeup22:34:200
149960,0migration/019785-21timerwakeupswit23:39:200
339950,0migration/3942-21munin-node20:14:073
339950,0migration/39343-21kthreadcore20:39:143
339950,0migration/39343-21kthreadcore20:39:143
339950,0migration/37601-21diskmemload21:42:013
339950,0migration/36493-21latency_hist22:38:543
339950,0migration/35548-21kthreadcore21:59:133
339950,0migration/332657-21taskset00:08:593
339950,0migration/332603-21kthreadcore22:14:123
339950,0migration/330207-21kthreadcore00:44:123
339950,0migration/330155-21kthreadcore20:54:123
339950,0migration/329864-21kthreadcore20:09:133
339950,0migration/326510-21kthreadcore19:44:123
339950,0migration/326445-21kthreadcore23:44:133
339950,0migration/324140-21kthreadcore00:39:143
339950,0migration/323902-21kthreadcore22:29:113
339950,0migration/321351-21kthreadcore19:19:123
339950,0migration/321201-21kthreadcore20:49:113
339950,0migration/318380-21kthreadcore19:39:103
339950,0migration/317775-21runrttasks20:02:583
339950,0migration/314968-21aten_r1power_vo21:09:083
339950,0migration/314556-21aten_r1power_en21:29:053
339950,0migration/313022-21kthreadcore23:19:103
339950,0migration/311161-21munin-node22:04:073
339950,0migration/310634-21kthreadcore19:34:133
329950,0watchdog/3978-21if_eth019:29:093
329950,0watchdog/38464-21ntp_kernel_err23:14:143
329950,0watchdog/34545-21kthreadcore22:54:143
329950,0watchdog/323220-21kthreadcore23:24:143
329950,0watchdog/321737-21cut20:29:053
329950,0watchdog/313228-21aten_r1power_cu23:39:063
329950,0watchdog/30-21swapper/323:04:423
29815050,0irq/29-eth0-tx-6354-21ssh22:54:172
29815050,0irq/29-eth0-tx-28549-21munin-node00:44:142
29815050,0irq/29-eth0-tx-26399-21sh00:24:082
29815050,0irq/29-eth0-tx-24061-21users23:04:182
29815050,0irq/29-eth0-tx-21676-21munin-node22:29:072
29815050,0irq/29-eth0-tx-17025-21ssh23:03:332
29815050,0irq/29-eth0-tx-0-21swapper/223:12:192
29815050,0irq/29-eth0-tx-0-21swapper/222:40:262
29815050,0irq/29-eth0-tx-0-21swapper/222:01:312
29815050,0irq/29-eth0-tx-0-21swapper/221:34:132
29815050,0irq/29-eth0-tx-0-21swapper/021:04:070
29815050,0irq/29-eth0-tx-0-21swapper/020:55:310
29815050,0irq/29-eth0-tx-0-21swapper/020:14:080
29815050,0irq/29-eth0-tx-0-21swapper/019:54:070
29815050,0irq/29-eth0-tx-0-21swapper/019:42:550
29805050,0irq/28-eth0-rx-4260-21munin-node22:34:163
29805050,0irq/28-eth0-rx-22999-21latency_hist21:33:543
29805050,0irq/28-eth0-rx-21594-21latency_hist20:28:543
29805050,0irq/28-eth0-rx-19932-21cut21:49:123
29805050,0irq/28-eth0-rx-19823-21df_abs22:09:073
29805050,0irq/28-eth0-rx-14506-21munin-node21:44:123
29805050,0irq/28-eth0-rx-0-21swapper/323:59:203
29805050,0irq/28-eth0-rx-0-21swapper/322:44:123
29805050,0irq/28-eth0-rx-0-21swapper/322:19:123
29805050,0irq/28-eth0-rx-0-21swapper/321:19:123
29805050,0irq/28-eth0-rx-0-21swapper/320:34:113
29805050,0irq/28-eth0-rx-0-21swapper/300:34:123
29805050,0irq/28-eth0-rx-0-21swapper/300:29:023
259950,0migration/26545-21fschecks_time21:24:102
259950,0migration/26086-21smart_nvme0n121:39:172
259950,0migration/2446-21kthreadcore20:34:112
259950,0migration/23284-21kthreadcore19:29:112
259950,0migration/232634-21latency_hist20:58:552
259950,0migration/230247-21crond23:48:552
259950,0migration/227603-21munin-node19:44:142
259950,0migration/22616-21munin-node19:49:182
259950,0migration/220936-21switchtime21:29:192
259950,0migration/218814-21kthreadcore23:39:132
249950,0watchdog/20-21swapper/220:49:092
176319955,0cyclictest0-21swapper/223:49:302
176319955,0cyclictest0-21swapper/221:21:082
176319954,0cyclictest3524-21snmpd00:42:342
176319950,0cyclictest0-21swapper/200:22:172
176319950,0cyclictest0-21swapper/200:12:212
176299955,0cyclictest0-21swapper/021:29:080
176299950,0cyclictest0-21swapper/022:13:260
179950,0migration/14245-21needreboot23:49:151
179950,0migration/13391-21sh00:45:491
179950,0migration/130220-21kthreadcore21:54:131
179950,0migration/127526-21needreboot19:44:131
179950,0migration/119457-21munin-node20:49:091
179950,0migration/118900-21kthreadcore20:24:131
179950,0migration/117532-21aten_r1power_po23:04:041
179950,0migration/11631-21irqcore00:09:101
179950,0migration/115768-21kthreadcore00:34:121
169950,0watchdog/14544-21kthreadcore22:54:141
169950,0watchdog/125323-21sh21:53:171
169950,0watchdog/10-21swapper/120:39:131
169950,0watchdog/10-21swapper/120:39:131
149950,0migration/05873-21kthreadcore00:09:120
149950,0migration/05097-21kthreadcore22:54:140
149950,0migration/03559-21kthreadcore19:29:110
149950,0migration/032699-21taskset20:59:040
149950,0migration/031194-21kthreadcore21:19:110
149950,0migration/030875-21kthreadcore23:09:110
149950,0migration/026234-21hddtemp_smartct20:09:080
149950,0migration/024701-21taskset20:05:040
149950,0migration/02186-21taskset00:28:430
149950,0migration/021565-21kthreadcore00:39:130
149950,0migration/020731-21kthreadcore19:19:110
149950,0migration/020160-21kthreadcore20:49:110
149950,0migration/019766-21kthreadcore22:44:130
149950,0migration/01824-21kthreadcore21:39:110
149950,0migration/018017-21fschecks_time21:49:080
149950,0migration/016807-21taskset23:02:570
149950,0migration/015149-21kthreadcore20:44:120
149950,0migration/014852-21taskset22:43:390
149950,0migration/014173-21kthreadcore19:59:110
149950,0migration/014142-21taskset19:38:500
149950,0migration/012328-21munin-node00:34:090
149950,0migration/010941-21latency_hist20:43:550
149950,0migration/010941-21latency_hist20:43:550
149950,0migration/010507-21kthreadcore23:54:130
149950,0migration/010273-21taskset22:03:090
339940,0migration/36806-21kthreadcore19:54:123
339940,0migration/330842-21sh00:04:343
339940,0migration/329827-21kthreadcore19:24:123
339940,0migration/31575-21irqcore20:59:113
329940,0watchdog/326841-21taskset21:54:093
329940,0watchdog/30-21swapper/320:44:053
329940,0watchdog/30-21swapper/320:07:453
329940,0watchdog/30-21swapper/319:53:413
29815040,0irq/29-eth0-tx-0-21swapper/223:59:002
29815040,0irq/29-eth0-tx-0-21swapper/223:28:582
29815040,0irq/29-eth0-tx-0-21swapper/222:35:012
29815040,0irq/29-eth0-tx-0-21swapper/222:19:112
29815040,0irq/29-eth0-tx-0-21swapper/222:04:012
29815040,0irq/29-eth0-tx-0-21swapper/221:54:072
29815040,0irq/29-eth0-tx-0-21swapper/200:34:142
29815040,0irq/29-eth0-tx-0-21swapper/020:34:120
29815040,0irq/29-eth0-tx-0-21swapper/020:24:160
29815040,0irq/29-eth0-tx-0-21swapper/020:19:100
29805040,0irq/28-eth0-rx-0-21swapper/323:54:163
29805040,0irq/28-eth0-rx-0-21swapper/323:34:063
29805040,0irq/28-eth0-rx-0-21swapper/320:19:133
29805040,0irq/28-eth0-rx-0-21swapper/300:21:263
29805040,0irq/28-eth0-rx-0-21swapper/300:14:063
259940,0migration/29756-21munin-node21:44:092
259940,0migration/26711-21latency_hist23:53:552
259940,0migration/229677-21kthreadcore00:04:132
259940,0migration/225432-21latency_hist20:53:552
259940,0migration/223565-21irqrtprio21:14:122
259940,0migration/221768-21kthreadcore22:09:122
259940,0migration/214697-21kthreadcore23:19:112
259940,0migration/214270-21irqcore22:24:122
259940,0migration/214137-21kthreadcore20:44:112
249940,0watchdog/27816-21kthreadcore20:39:132
249940,0watchdog/27816-21kthreadcore20:39:132
249940,0watchdog/221736-21basename20:29:052
249940,0watchdog/219630-21irqstats20:04:092
249940,0watchdog/20-21swapper/223:34:102
176319944,0cyclictest0-21swapper/223:24:072
176319944,0cyclictest0-21swapper/220:23:552
176319943,0cyclictest3524-21snmpd20:23:152
176319943,0cyclictest3524-21snmpd20:15:452
176319943,0cyclictest3524-21snmpd20:10:302
176319943,0cyclictest3524-21snmpd19:40:152
176319943,0cyclictest3524-21snmpd19:35:452
176319943,0cyclictest3524-21snmpd19:19:002
176319943,0cyclictest3524-21snmpd00:14:032
176319943,0cyclictest15879-21awk21:09:112
176319943,0cyclictest12018-21awk19:59:092
176319940,0cyclictest29580-21cut22:14:112
176319940,0cyclictest0-21swapper/222:49:122
176319940,0cyclictest0-21swapper/222:44:112
176319940,0cyclictest0-21swapper/200:29:072
176309943,0cyclictest9886-21awk22:59:081
176309943,0cyclictest3571-21lldpd19:57:001
176309943,0cyclictest3571-21lldpd19:22:301
176309943,0cyclictest3524-21snmpd22:30:321
176309943,0cyclictest3524-21snmpd22:14:321
176309943,0cyclictest3524-21snmpd21:39:321
176309943,0cyclictest3524-21snmpd20:32:451
176309943,0cyclictest24925-21awk22:49:101
176309943,0cyclictest22989-21awk23:44:101
176309943,0cyclictest19143-21awk20:04:071
176309943,0cyclictest16298-21awk22:44:101
176309943,0cyclictest14595-21sadc21:08:551
176309943,0cyclictest14096-21awk22:24:111
176309943,0cyclictest10232-21awk00:14:121
176299944,0cyclictest16814-21kworker/0:020:29:410
176299944,0cyclictest16814-21kworker/0:019:47:190
176299944,0cyclictest0-21swapper/023:49:080
176299943,0cyclictest5586-21awk22:19:100
176299943,0cyclictest3571-21lldpd23:14:020
176299943,0cyclictest3571-21lldpd22:51:320
176299943,0cyclictest3571-21lldpd22:31:010
176299943,0cyclictest3571-21lldpd22:17:310
176299943,0cyclictest3571-21lldpd21:35:010
176299943,0cyclictest3571-21lldpd19:50:300
176299943,0cyclictest29635-21awk00:44:110
176299943,0cyclictest29402-21awk23:29:100
176299943,0cyclictest0-21swapper/021:09:160
176299940,0cyclictest0-21swapper/000:03:470
179940,0migration/18467-21kthreadcore00:29:121
179940,0migration/17076-21latency_hist19:33:541
179940,0migration/17057-21kthreadcore22:19:121
179940,0migration/16873-21kthreadcore23:34:121
179940,0migration/128447-21kthreadcore20:09:131
179940,0migration/127753-21kthreadcore19:24:111
179940,0migration/12708-21fschecks_count21:59:081
179940,0migration/12665-21kthreadcore20:14:101
179940,0migration/124024-21kthreadcore21:14:131
179940,0migration/121733-21kthreadcore00:39:131
179940,0migration/12083-21diskmemload00:28:261
179940,0migration/116754-21kthreadcore21:09:131
179940,0migration/114831-21cpuspeed_turbos21:29:061
179940,0migration/114668-21cpuspeed_turbos19:39:041
179940,0migration/112958-21latency19:34:131
179940,0migration/110688-21latency_hist22:03:541
179940,0migration/110194-21kthreadcore23:54:121
169940,0watchdog/17882-21cut21:24:131
169940,0watchdog/131225-21ssh00:05:381
169940,0watchdog/130747-21kthreadcore19:49:131
169940,0watchdog/116643-21ssh21:48:091
169940,0watchdog/113547-21sensors20:19:171
169940,0watchdog/10-21swapper/123:39:061
169940,0watchdog/10-21swapper/123:24:141
169940,0watchdog/10-21swapper/122:39:141
169940,0watchdog/10-21swapper/120:44:051
149940,0migration/09394-21fschecks_time21:44:060
149940,0migration/08678-21kthreadcore23:34:120
149940,0migration/06420-21fschecks_time21:24:100
149940,0migration/029801-21kthreadcore19:24:120
149940,0migration/012463-21irqrtprio23:19:100
149940,0migration/010474-21ksmtuned00:32:290
329930,0watchdog/30-21swapper/321:04:053
249930,0watchdog/20-21swapper/219:54:172
176319932,0cyclictest3524-21snmpd21:08:012
176319932,0cyclictest3524-21snmpd19:25:002
176309932,0cyclictest3524-21snmpd23:09:331
176309932,0cyclictest3524-21snmpd00:19:331
176309932,0cyclictest30447-21awk21:19:101
176309932,0cyclictest30102-21awk20:34:091
176309932,0cyclictest29495-21awk23:29:111
176309932,0cyclictest24385-21awk21:34:131
176309932,0cyclictest20874-21irqrtprio22:09:111
176309932,0cyclictest15671-21grep19:59:111
176309930,0cyclictest11918-21perl23:19:071
176309930,0cyclictest1020-21perl20:59:081
176309930,0cyclictest0-21swapper/122:34:121
176299933,0cyclictest16814-21kworker/0:021:13:570
176299933,0cyclictest10109-21awk00:14:110
176299932,0cyclictest3571-21lldpd21:54:310
176299932,0cyclictest31057-21sh00:05:100
176299932,0cyclictest19378-21sensors22:24:180
176299932,0cyclictest18834-21awk00:19:110
176299932,0cyclictest18118-21perl23:04:060
176299930,0cyclictest22332-21diskstats23:44:080
169930,0watchdog/10-21swapper/123:59:261
169930,0watchdog/10-21swapper/123:14:141
176309921,0cyclictest25430-21latency_hist20:53:551
176299920,0cyclictest0-21swapper/023:24:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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