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2026-08-11 - 11:46
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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 Tue Aug 11, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1459524736,0sleep00-21swapper/019:29:020
1458723927,0sleep20-21swapper/219:28:562
1438723827,0sleep30-21swapper/319:26:363
1435423725,0sleep10-21swapper/119:26:101
339960,0migration/3923-21sh23:25:463
339960,0migration/39083-21sh23:30:173
339960,0migration/38823-21sh00:47:073
339960,0migration/35811-21gltestperf20:10:083
339960,0migration/35088-21kthreadcore21:15:113
339960,0migration/331605-21cpuspeed_turbos22:50:063
339960,0migration/330197-21sh22:47:323
339960,0migration/325523-21switchtime22:05:213
339960,0migration/315833-21munin-node00:15:083
29815060,0irq/29-eth0-tx-18235-21cat23:00:132
29815060,0irq/29-eth0-tx-15563-21munin-node19:55:170
29815060,0irq/29-eth0-tx-1492-21munin-node21:15:060
29805060,0irq/28-eth0-rx-7969-21uptime20:30:203
29805060,0irq/28-eth0-rx-24588-21ssh21:48:083
29805060,0irq/28-eth0-rx-13270-21perl22:20:093
29805060,0irq/28-eth0-rx-12551-21cut23:15:133
29805060,0irq/28-eth0-rx-11538-21sed20:55:203
29805060,0irq/28-eth0-rx-0-21swapper/300:05:143
147439960,0cyclictest0-21swapper/221:55:072
147439960,0cyclictest0-21swapper/200:05:112
147409960,0cyclictest0-21swapper/021:45:160
147409960,0cyclictest0-21swapper/000:13:180
149960,0migration/05534-21fschecks_count20:55:080
149960,0migration/03319-21pmu-power22:30:150
149960,0migration/018130-21kthreadcore20:40:120
149960,0migration/017476-21kthreadcore00:15:110
149960,0migration/016403-21sh21:44:250
149960,0migration/015621-21sh22:59:280
149960,0migration/013283-21kthreadcore22:00:120
8305050,0irq/26-0000:00:24521-21latency_hist23:04:552
339950,0migration/38763-21taskset21:55:223
339950,0migration/37710-21irqrtprio00:10:123
339950,0migration/34799-21latency_hist20:09:543
339950,0migration/326284-21kthreadcore22:25:133
339950,0migration/326158-21taskset21:06:163
339950,0migration/325200-21kthreadcore20:00:123
339950,0migration/325136-21kthreadcore00:00:133
339950,0migration/323215-21runrttasks23:01:403
339950,0migration/321259-21kthreadcore00:55:133
339950,0migration/319171-21kthreadcore00:35:143
339950,0migration/315887-21latency_hist21:24:543
339950,0migration/315278-21munin-node19:30:063
339950,0migration/315099-21taskset19:52:153
339950,0migration/31396-21kthreadcore21:35:153
339950,0migration/313002-21gltestperf20:15:083
339950,0migration/311226-21kthreadcore20:35:133
329950,0watchdog/37962-21diskstats22:55:063
329950,0watchdog/35088-21munin-node22:15:093
329950,0watchdog/325945-21df_abs21:50:093
329950,0watchdog/320641-21kernelversion19:35:133
329950,0watchdog/319643-21kthreadcore22:40:143
329950,0watchdog/30-21swapper/322:10:133
29815050,0irq/29-eth0-tx-7843-21sshd19:46:410
29815050,0irq/29-eth0-tx-6263-21ps23:30:122
29815050,0irq/29-eth0-tx-28905-21irqcore22:10:122
29815050,0irq/29-eth0-tx-21345-21irqrtprio23:40:132
29815050,0irq/29-eth0-tx-21185-21python00:15:162
29815050,0irq/29-eth0-tx-20990-21munin-node22:25:062
29815050,0irq/29-eth0-tx-12726-21grep22:55:112
29815050,0irq/29-eth0-tx-0-21swapper/222:51:452
29815050,0irq/29-eth0-tx-0-21swapper/222:15:262
29815050,0irq/29-eth0-tx-0-21swapper/221:50:152
29815050,0irq/29-eth0-tx-0-21swapper/221:48:352
29815050,0irq/29-eth0-tx-0-21swapper/021:30:060
29815050,0irq/29-eth0-tx-0-21swapper/021:20:390
29815050,0irq/29-eth0-tx-0-21swapper/020:45:080
29815050,0irq/29-eth0-tx-0-21swapper/019:44:360
29805050,0irq/28-eth0-rx-3778-21cut00:25:183
29805050,0irq/28-eth0-rx-31160-21kthreadcore23:45:123
29805050,0irq/28-eth0-rx-25194-21fschecks_count23:05:113
29805050,0irq/28-eth0-rx-24248-21sensors_fan23:20:173
29805050,0irq/28-eth0-rx-2332-21sed23:10:143
29805050,0irq/28-eth0-rx-14853-21kthreadcore23:35:153
29805050,0irq/28-eth0-rx-0-21swapper/323:55:113
29805050,0irq/28-eth0-rx-0-21swapper/323:41:293
29805050,0irq/28-eth0-rx-0-21swapper/322:38:333
29805050,0irq/28-eth0-rx-0-21swapper/322:00:123
29805050,0irq/28-eth0-rx-0-21swapper/321:39:593
29805050,0irq/28-eth0-rx-0-21swapper/321:31:463
29805050,0irq/28-eth0-rx-0-21swapper/300:50:193
27150,0ktimersoftd/20-21swapper/222:35:012
27150,0ktimersoftd/20-21swapper/200:41:082
259950,0migration/28456-21sh00:46:032
259950,0migration/24953-21sh23:50:092
259950,0migration/2366-21munin-node19:40:212
259950,0migration/221836-21kthreadcore19:35:132
259950,0migration/214527-21needreboot20:35:152
259950,0migration/213622-21kthreadcore23:15:132
179950,0migration/1694-21unixbench-2d21:10:201
179950,0migration/16226-21sh21:35:371
179950,0migration/14540-21kthreadcore00:45:121
179950,0migration/13662-21kthreadcore19:45:111
179950,0migration/128688-21kthreadcore21:50:161
179950,0migration/121980-21munin-node00:00:081
179950,0migration/118919-21latency23:55:121
179950,0migration/112025-21latency_hist20:14:541
169950,0watchdog/131432-21cut23:25:141
147439955,0cyclictest0-21swapper/200:33:442
147439954,0cyclictest14070-21ps22:20:132
147439950,0cyclictest0-21swapper/223:54:572
147439950,0cyclictest0-21swapper/221:44:052
147439950,0cyclictest0-21swapper/221:31:572
147419950,0cyclictest819-21perf19:44:531
147409955,0cyclictest0-21swapper/023:24:070
147409955,0cyclictest0-21swapper/020:29:540
147409955,0cyclictest0-21swapper/000:43:150
147409950,0cyclictest0-21swapper/023:50:260
147409950,0cyclictest0-21swapper/023:41:080
147409950,0cyclictest0-21swapper/022:48:000
147409950,0cyclictest0-21swapper/022:39:580
149950,0migration/09735-21kthreadcore22:15:110
149950,0migration/08171-21kthreadcore23:30:130
149950,0migration/05912-21munin-node20:10:090
149950,0migration/0510-21kthreadcore20:05:110
149950,0migration/04125-21switchtime00:05:210
149950,0migration/03117-21taskset23:46:510
149950,0migration/030045-21unixbench_multi00:20:230
149950,0migration/027697-21munin-node23:25:120
149950,0migration/025895-21cpuspeed_turbos21:50:090
149950,0migration/025379-21taskset00:55:360
149950,0migration/024704-21kthreadcore00:00:130
149950,0migration/024386-21kernelversion20:00:120
149950,0migration/022970-21kthreadcore22:25:120
149950,0migration/02161-21kthreadcore00:25:170
149950,0migration/019692-21sh22:21:550
149950,0migration/019256-21latency_hist20:19:540
149950,0migration/017217-21latency23:35:160
149950,0migration/017198-21fschecks_count00:35:100
149950,0migration/016834-21kthreadcore23:55:120
149950,0migration/01560-21fschecks_time23:10:110
149950,0migration/014924-21kthreadcore20:15:110
149950,0migration/01114-21kthreadcore22:10:130
149950,0migration/011074-21idleruntime00:50:100
149950,0migration/010210-21kthreadcore00:30:130
339940,0migration/32957-21kthreadcore20:50:123
339940,0migration/329102-21kthreadcore21:10:123
339940,0migration/319312-21taskset20:20:043
339940,0migration/312998-21kthreadcore00:30:143
329940,0watchdog/310842-21munin-node23:50:183
329940,0watchdog/30-21swapper/321:25:133
329940,0watchdog/30-21swapper/321:00:133
329940,0watchdog/30-21swapper/320:25:173
329940,0watchdog/30-21swapper/319:48:173
329940,0watchdog/30-21swapper/319:40:133
29815040,0irq/29-eth0-tx-29797-21ssh22:46:212
29815040,0irq/29-eth0-tx-0-21swapper/223:35:072
29815040,0irq/29-eth0-tx-0-21swapper/223:25:172
29815040,0irq/29-eth0-tx-0-21swapper/223:09:592
29815040,0irq/29-eth0-tx-0-21swapper/222:00:122
29815040,0irq/29-eth0-tx-0-21swapper/221:35:392
29815040,0irq/29-eth0-tx-0-21swapper/200:20:192
29815040,0irq/29-eth0-tx-0-21swapper/200:00:132
29815040,0irq/29-eth0-tx-0-21swapper/021:10:150
29815040,0irq/29-eth0-tx-0-21swapper/020:37:590
29805040,0irq/28-eth0-rx-0-21swapper/322:30:093
29805040,0irq/28-eth0-rx-0-21swapper/300:40:103
29805040,0irq/28-eth0-rx-0-21swapper/300:20:043
259940,0migration/29610-21fschecks_time21:20:072
259940,0migration/28320-21kthreadcore20:55:122
259940,0migration/25334-21munin-node20:10:082
259940,0migration/23035-21kthreadcore00:25:172
259940,0migration/229015-21kthreadcore21:10:122
259940,0migration/221091-21kthreadcore00:55:132
259940,0migration/217660-21kthreadcore20:15:122
259940,0migration/217202-21fschecks_count00:35:102
259940,0migration/217057-21idleruntime21:25:112
259940,0migration/216819-21kthreadcore22:40:132
259940,0migration/215914-21hddtemp_smartct19:30:082
259940,0migration/215813-21cpuspeed_turbos19:55:042
259940,0migration/213244-21kthreadcore00:50:132
259940,0migration/210062-21kthreadcore00:10:132
249940,0watchdog/224219-21irqcore20:45:092
249940,0watchdog/220064-21smartctl22:05:092
249940,0watchdog/20-21swapper/221:15:092
249940,0watchdog/20-21swapper/219:50:132
179940,0migration/19318-21fschecks_time20:35:091
179940,0migration/17944-21kthreadcore23:30:131
179940,0migration/1740-21kthreadcore20:50:111
179940,0migration/14745-21cpuspeed_turbos23:50:081
179940,0migration/132311-21idleruntime22:50:091
179940,0migration/128053-21df_abs22:10:081
179940,0migration/124940-21kthreadcore20:45:101
179940,0migration/124418-21idleruntime00:20:131
179940,0migration/122488-21kthreadcore00:35:151
179940,0migration/120930-21kthreadcore21:25:141
179940,0migration/120862-21irqcore21:05:131
179940,0migration/120240-21kthreadcore23:20:121
179940,0migration/115812-21irqrtprio22:40:121
179940,0migration/111338-21sh22:17:251
179940,0migration/111159-21kthreadcore22:55:101
179940,0migration/110701-21kthreadcore21:20:111
169940,0watchdog/19011-21fschecks_time19:50:091
169940,0watchdog/131936-21grep00:05:141
169940,0watchdog/131100-21ksmtuned20:05:091
169940,0watchdog/128942-21kthreadcore21:30:131
169940,0watchdog/121432-21cut23:00:141
169940,0watchdog/118616-21ssh23:37:141
169940,0watchdog/116278-21ssh21:44:051
169940,0watchdog/115672-21rm00:32:381
169940,0watchdog/10-21swapper/123:40:141
169940,0watchdog/10-21swapper/121:55:131
169940,0watchdog/10-21swapper/121:46:291
169940,0watchdog/10-21swapper/120:00:131
169940,0watchdog/10-21swapper/100:40:141
169940,0watchdog/10-21swapper/100:25:181
147439944,0cyclictest0-21swapper/223:19:572
147439943,0cyclictest31383-21awk20:50:092
147439943,0cyclictest30623-21awk22:30:102
147439943,0cyclictest29428-21awk23:45:112
147439943,0cyclictest27690-21awk20:25:112
147439943,0cyclictest24213-21ps20:00:112
147439943,0cyclictest20693-21awk21:05:112
147439943,0cyclictest13362-21awk21:00:102
147419944,0cyclictest0-21swapper/123:10:201
147419943,0cyclictest3524-21snmpd20:40:171
147419943,0cyclictest23904-21awk22:45:111
147419943,0cyclictest20222-21awk19:35:121
147419943,0cyclictest20170-21awk22:05:111
147419943,0cyclictest19625-21awk00:55:111
147419943,0cyclictest16064-21awk19:30:101
147419943,0cyclictest16060-21awk00:15:101
147419943,0cyclictest13644-21awk22:20:111
147419943,0cyclictest11671-21awk22:00:101
147409944,0cyclictest0-21swapper/000:46:530
147409940,0cyclictest8363-21munin-node19:50:180
147409940,0cyclictest32164-21diskstats21:35:100
147409940,0cyclictest26508-21munin-node20:25:140
147409940,0cyclictest14954-21munin-node19:30:100
147409940,0cyclictest12305-21munin-node21:00:170
147409940,0cyclictest0-21swapper/019:35:090
149940,0migration/06173-21runrttasks22:51:450
149940,0migration/032560-21runrttasks23:09:070
149940,0migration/020144-21fschecks_count21:05:090
149940,0migration/014040-21kthreadcore23:15:130
329930,0watchdog/30-21swapper/320:45:133
329930,0watchdog/30-21swapper/319:55:053
29805030,0irq/28-eth0-rx-0-21swapper/320:39:553
249930,0watchdog/20-21swapper/219:45:052
179930,0migration/18188-21runrttasks21:15:281
179930,0migration/13672-21kthreadcore20:30:121
179930,0migration/121504-21kthreadcore20:20:121
169930,0watchdog/10-21swapper/122:25:141
169930,0watchdog/10-21swapper/100:10:101
147439932,0cyclictest30569-21grep20:05:072
147439930,0cyclictest2159-21perl20:30:082
147439930,0cyclictest20300-21grep20:40:122
147439930,0cyclictest20015-21perl20:20:082
147419933,0cyclictest10455-21awk23:15:101
147419932,0cyclictest29363-21awk23:45:101
147419932,0cyclictest27593-21awk20:25:111
147419932,0cyclictest26727-21cut23:05:151
147419932,0cyclictest16716-21awk19:55:081
147419932,0cyclictest13803-21cut21:00:121
147419930,0cyclictest8086-21grep20:10:121
147419930,0cyclictest6591-21perl22:35:081
147419930,0cyclictest3978-21sh22:30:391
147419930,0cyclictest10824-21perl00:50:091
147409932,0cyclictest3524-21snmpd21:24:550
147409932,0cyclictest31257-21awk20:50:090
147409932,0cyclictest20114-21basename22:05:100
147409932,0cyclictest17133-21awk23:00:110
147409932,0cyclictest12002-21processes22:35:160
147419920,0cyclictest0-21swapper/120:54:541
147409920,0cyclictest0-21swapper/021:54:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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