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2026-05-17 - 12:39
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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 Sun May 17, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1192124837,0sleep00-21swapper/019:20:070
1203523526,0sleep10-21swapper/119:21:281
1200123026,0sleep20-21swapper/219:21:012
1199722824,0sleep30-21swapper/319:20:583
8305060,0irq/26-0000:00:13997-21if_eth1.320:53:082
35160,0ktimersoftd/30-21swapper/321:35:073
339960,0migration/38837-21sh22:45:173
339960,0migration/36700-21sh22:08:083
339960,0migration/327884-21munin-node22:58:053
339960,0migration/326479-21sh21:42:313
339960,0migration/323760-21fschecks_time22:18:063
339960,0migration/323571-21sh22:34:193
339960,0migration/315851-21irqcore23:28:113
339960,0migration/313645-21sh00:40:033
329960,0watchdog/34433-21sh00:33:323
29805060,0irq/28-eth0-rx-9500-21sed23:23:103
29805060,0irq/28-eth0-rx-32688-21if_eth1.322:23:083
29805060,0irq/28-eth0-rx-3076-21ssh00:16:083
29805060,0irq/28-eth0-rx-25006-21munin-node21:23:093
29805060,0irq/28-eth0-rx-14153-21irqstats20:08:093
29805060,0irq/28-eth0-rx-0-21swapper/320:03:123
149960,0migration/010615-21kthreadcore23:43:110
122349966,0cyclictest23559-21diskmemload23:43:422
122349960,0cyclictest0-21swapper/219:58:052
122339966,0cyclictest3571-21lldpd00:43:501
122339966,0cyclictest13996-21awk20:53:081
8305050,0irq/26-0000:00:31547-21crond23:37:522
8305050,0irq/26-0000:00:1818-21latency_hist21:07:522
339950,0migration/38736-21munin-node23:43:073
339950,0migration/38456-21fschecks_count22:28:063
339950,0migration/35212-21munin-node00:18:083
339950,0migration/33337-21munin-node23:18:113
339950,0migration/33093-21idleruntime21:08:083
339950,0migration/330241-21kthreadcore21:43:103
339950,0migration/328702-21kthreadcore20:18:103
339950,0migration/326635-21taskset20:58:253
339950,0migration/323579-21runrttasks23:48:273
339950,0migration/322552-21munin-node21:18:133
339950,0migration/318013-21munin-node21:53:123
339950,0migration/317535-21kthreadcore19:23:113
339950,0migration/31673-21munin-node23:58:043
339950,0migration/31067-21taskset19:34:113
329950,0watchdog/37026-21sh23:40:323
329950,0watchdog/329052-21sh23:17:123
329950,0watchdog/315083-21cut21:13:113
329950,0watchdog/314220-21aten_r1power_cu22:13:033
329950,0watchdog/30-21swapper/321:28:113
29815050,0irq/29-eth0-tx-5367-21munin-node20:03:080
29815050,0irq/29-eth0-tx-32612-21munin-node21:28:072
29815050,0irq/29-eth0-tx-31654-21cut23:18:092
29815050,0irq/29-eth0-tx-27262-21munin-node21:03:060
29815050,0irq/29-eth0-tx-26913-21munin-node21:43:072
29815050,0irq/29-eth0-tx-26364-21if_eth1.322:38:112
29815050,0irq/29-eth0-tx-25764-21ssh21:40:402
29815050,0irq/29-eth0-tx-24524-21ssh21:23:060
29815050,0irq/29-eth0-tx-20745-21ssh00:26:592
29815050,0irq/29-eth0-tx-12015-21ssh00:03:102
29815050,0irq/29-eth0-tx-0-21swapper/223:28:182
29815050,0irq/29-eth0-tx-0-21swapper/223:14:342
29815050,0irq/29-eth0-tx-0-21swapper/222:12:582
29815050,0irq/29-eth0-tx-0-21swapper/222:03:542
29815050,0irq/29-eth0-tx-0-21swapper/200:18:132
29815050,0irq/29-eth0-tx-0-21swapper/020:48:020
29805050,0irq/28-eth0-rx-7042-21grep21:48:103
29805050,0irq/28-eth0-rx-6156-21cut23:03:103
29805050,0irq/28-eth0-rx-18985-21tr22:53:053
29805050,0irq/28-eth0-rx-10732-21cpuspeed_turbos00:03:053
29805050,0irq/28-eth0-rx-10301-21cut20:48:093
29805050,0irq/28-eth0-rx-0-21swapper/323:54:353
29805050,0irq/28-eth0-rx-0-21swapper/323:33:053
29805050,0irq/28-eth0-rx-0-21swapper/323:08:183
29805050,0irq/28-eth0-rx-0-21swapper/322:48:473
29805050,0irq/28-eth0-rx-0-21swapper/322:38:413
29805050,0irq/28-eth0-rx-0-21swapper/322:04:443
29805050,0irq/28-eth0-rx-0-21swapper/322:01:563
29805050,0irq/28-eth0-rx-0-21swapper/319:43:223
29805050,0irq/28-eth0-rx-0-21swapper/300:50:593
29805050,0irq/28-eth0-rx-0-21swapper/300:44:143
259950,0migration/26065-21runrttasks22:23:422
259950,0migration/232469-21kthreadcore00:33:102
259950,0migration/230731-21latency_hist20:42:522
259950,0migration/229293-21switchtime22:18:172
259950,0migration/22649-21taskset23:01:062
259950,0migration/225349-21kthreadcore00:28:122
259950,0migration/216599-21aten_r1power_cu21:18:052
259950,0migration/215027-21mdstat20:28:102
259950,0migration/213214-21sh23:24:512
259950,0migration/210845-21taskset23:04:422
249950,0watchdog/20-21swapper/221:13:112
19150,0ktimersoftd/10-21swapper/100:30:141
179950,0migration/18443-21kthreadcore22:08:101
179950,0migration/15572-21kthreadcore21:28:121
179950,0migration/132321-21kthreadcore19:33:101
179950,0migration/132158-21taskset23:53:221
179950,0migration/131412-21taskset00:51:251
179950,0migration/123577-21idleruntime-cro21:22:521
179950,0migration/118445-21pmu-power23:08:141
179950,0migration/112556-21aten_r1power_po19:23:041
179950,0migration/111331-21fschecks_time00:03:071
149950,0migration/07530-21kernelversion23:23:090
149950,0migration/05235-21sh00:35:450
149950,0migration/04073-21kthreadcore22:43:090
149950,0migration/032572-21sh21:27:590
149950,0migration/030019-21taskset19:55:100
149950,0migration/028064-21sh00:28:210
149950,0migration/027401-21timerandwakeup23:13:180
149950,0migration/027017-21aten2.4-expect20:18:040
149950,0migration/022945-21sh00:46:550
149950,0migration/017570-21kthreadcore20:08:100
149950,0migration/01706-21sh21:44:410
149950,0migration/016348-21kthreadcore00:23:100
149950,0migration/015457-21kthreadcore20:53:100
149950,0migration/013807-21taskset00:40:310
149950,0migration/011063-21kthreadcore21:33:090
149950,0migration/010356-21sh21:49:030
122349955,0cyclictest23559-21diskmemload21:27:382
122349955,0cyclictest0-21swapper/223:49:032
122349955,0cyclictest0-21swapper/222:44:342
122349955,0cyclictest0-21swapper/221:48:462
122349955,0cyclictest0-21swapper/200:51:012
122349954,0cyclictest29323-21tail00:13:092
122349950,0cyclictest0-21swapper/222:32:542
122349950,0cyclictest0-21swapper/221:59:102
122349950,0cyclictest0-21swapper/221:53:582
122349950,0cyclictest0-21swapper/200:39:302
122339955,0cyclictest0-21swapper/123:24:391
122339955,0cyclictest0-21swapper/122:26:281
122339950,0cyclictest23586-21ssh22:34:211
122339950,0cyclictest0-21swapper/123:49:521
122339950,0cyclictest0-21swapper/123:14:241
122339950,0cyclictest0-21swapper/120:48:341
122329950,0cyclictest0-21swapper/023:57:020
122329950,0cyclictest0-21swapper/023:49:470
122329950,0cyclictest0-21swapper/023:34:300
122329950,0cyclictest0-21swapper/023:31:490
122329950,0cyclictest0-21swapper/022:36:470
122329950,0cyclictest0-21swapper/022:24:010
339940,0migration/332519-21kthreadcore20:43:103
339940,0migration/326721-21taskset20:17:343
339940,0migration/326310-21kthreadcore19:53:103
339940,0migration/320054-21kthreadcore19:48:103
339940,0migration/312242-21kthreadcore20:28:093
329940,0watchdog/33938-21kthreadcore19:38:113
329940,0watchdog/325344-21kthreadcore00:28:123
329940,0watchdog/324888-21kthreadcore19:28:113
329940,0watchdog/30-21swapper/319:58:073
29815040,0irq/29-eth0-tx-7998-21aten_r1power_po22:28:042
29815040,0irq/29-eth0-tx-1627-21munin-node19:38:090
29815040,0irq/29-eth0-tx-0-21swapper/223:57:582
29815040,0irq/29-eth0-tx-0-21swapper/222:53:202
29815040,0irq/29-eth0-tx-0-21swapper/222:47:552
29815040,0irq/29-eth0-tx-0-21swapper/222:08:212
29815040,0irq/29-eth0-tx-0-21swapper/221:33:212
29815040,0irq/29-eth0-tx-0-21swapper/200:43:032
29815040,0irq/29-eth0-tx-0-21swapper/200:08:242
29815040,0irq/29-eth0-tx-0-21swapper/021:08:070
29815040,0irq/29-eth0-tx-0-21swapper/020:58:090
29815040,0irq/29-eth0-tx-0-21swapper/020:43:150
29815040,0irq/29-eth0-tx-0-21swapper/019:28:050
29805040,0irq/28-eth0-rx-0-21swapper/300:23:103
29805040,0irq/28-eth0-rx-0-21swapper/300:08:023
259940,0migration/2520-21if_eth123:38:092
259940,0migration/224195-21kthreadcore20:58:102
259940,0migration/223556-21latency_hist20:37:522
259940,0migration/22020-21munin-node20:23:022
249940,0watchdog/232502-21kthreadcore20:18:112
249940,0watchdog/224887-21kthreadcore19:28:112
179940,0migration/19536-21fschecks_count19:43:191
179940,0migration/16758-21munin-node00:38:091
179940,0migration/15335-21kthreadcore21:08:111
179940,0migration/131125-21kthreadcore00:13:091
179940,0migration/130230-21cpuspeed_turbos00:33:051
179940,0migration/129938-21munin-node23:33:191
179940,0migration/12934-21taskset22:03:101
179940,0migration/128500-21kthreadcore19:53:101
179940,0migration/127362-21df_abs20:18:051
179940,0migration/125956-21taskset00:08:461
179940,0migration/125482-21cpuspeed_turbos22:38:081
179940,0migration/123935-21kthreadcore20:58:101
179940,0migration/120279-21kthreadcore21:38:111
179940,0migration/118901-21timerandwakeup20:08:171
179940,0migration/115148-21kthreadcore00:23:101
179940,0migration/113036-21hwlatdetect21:53:081
179940,0migration/111043-21gltestperf22:48:061
169940,0watchdog/15842-21ssh23:38:161
169940,0watchdog/129808-21ssh22:18:551
169940,0watchdog/127542-1kworker/1:0H21:26:111
169940,0watchdog/126913-21munin-node21:43:111
169940,0watchdog/12377-21ssh23:00:241
169940,0watchdog/122230-21memory20:33:111
169940,0watchdog/114218-21aten_r1power_cu22:13:031
169940,0watchdog/10-21swapper/123:43:121
169940,0watchdog/10-21swapper/121:13:111
169940,0watchdog/10-21swapper/100:18:521
149940,0migration/09567-21kthreadcore22:28:100
149940,0migration/031461-21kthreadcore23:18:090
149940,0migration/029104-21kthreadcore00:48:120
149940,0migration/026545-21irqcore22:38:120
149940,0migration/025398-21kthreadcore22:18:100
149940,0migration/017147-21fschecks_count21:18:070
149940,0migration/013355-21irqcore21:53:090
149940,0migration/012379-21kthreadcore00:03:100
149940,0migration/010474-21irqcore20:28:080
149940,0migration/010094-21kthreadcore22:08:110
149940,0migration/010017-21runrttasks22:47:520
122349944,0cyclictest305350irq/27-eth120:08:032
122349944,0cyclictest305350irq/27-eth119:33:112
122349943,0cyclictest9990-21awk19:43:212
122349943,0cyclictest6681-21awk20:48:062
122349943,0cyclictest3524-21snmpd23:08:012
122349943,0cyclictest3524-21snmpd20:04:592
122349943,0cyclictest3524-21snmpd19:47:592
122349943,0cyclictest26593-21awk23:53:092
122349943,0cyclictest20858-21awk20:13:072
122349943,0cyclictest17515-21awk20:33:082
122339943,0cyclictest3571-21lldpd20:17:471
122339943,0cyclictest3571-21lldpd19:31:461
122339943,0cyclictest3524-21snmpd22:56:311
122339943,0cyclictest3524-21snmpd00:00:011
122339943,0cyclictest30740-21awk23:18:071
122339943,0cyclictest2701-21awk19:38:091
122339943,0cyclictest15714-21awk23:28:101
122339943,0cyclictest10195-21awk20:28:071
122329943,0cyclictest3571-21lldpd23:38:190
122329943,0cyclictest3571-21lldpd23:08:180
122329943,0cyclictest3571-21lldpd22:05:480
122329943,0cyclictest3571-21lldpd00:01:500
122329943,0cyclictest3524-21snmpd00:14:460
122329943,0cyclictest3250-21irqbalance22:13:190
122329943,0cyclictest3250-21irqbalance20:38:480
122329943,0cyclictest3250-21irqbalance20:33:080
122329943,0cyclictest3250-21irqbalance00:19:090
122329943,0cyclictest2900-21awk20:23:050
122329943,0cyclictest28383-21awk22:58:060
122329943,0cyclictest27968-21awk19:33:070
122329943,0cyclictest20238-21awk00:08:100
122329943,0cyclictest17187-21awk19:48:070
122329943,0cyclictest13549-21awk19:23:080
122329943,0cyclictest10413-21awk21:13:080
329930,0watchdog/30-21swapper/320:38:033
329930,0watchdog/30-21swapper/320:23:473
29805030,0irq/28-eth0-rx-0-21swapper/321:07:303
29805030,0irq/28-eth0-rx-0-21swapper/320:53:043
29805030,0irq/28-eth0-rx-0-21swapper/320:33:043
259930,0migration/25950-21kthreadcore21:08:112
169930,0watchdog/18057-21ps20:23:111
169930,0watchdog/13950-21kthreadcore20:43:111
169930,0watchdog/131605-21if_eth119:58:071
169930,0watchdog/10-21swapper/123:03:161
169930,0watchdog/10-21swapper/121:58:151
169930,0watchdog/10-21swapper/120:38:031
169930,0watchdog/10-21swapper/119:48:031
122349932,0cyclictest3524-21snmpd19:52:592
122349932,0cyclictest2724-21awk19:38:092
122349932,0cyclictest14021-21kthreadcore19:23:102
122339932,0cyclictest7830-21grep20:03:101
122339932,0cyclictest2424-21awk22:43:071
122339932,0cyclictest10564-21cut21:33:091
122329932,0cyclictest8956-21munin-node19:43:240
122329932,0cyclictest23559-21diskmemload21:39:290
122329932,0cyclictest22997-21cut22:53:110
122329932,0cyclictest21706-21awk21:58:080
122329932,0cyclictest20548-21tune2fs20:13:050
122329930,0cyclictest4697-21head19:58:170
122339921,0cyclictest27542-1kworker/1:0H22:27:531
122339921,0cyclictest0-21swapper/121:02:521
122339920,0cyclictest0-21swapper/121:47:541
122329921,0cyclictest3485-21wc23:02:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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