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2026-08-23 - 11:37
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Sun Aug 23, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
555225343,0sleep30-21swapper/319:28:383
548625139,0sleep20-21swapper/219:27:532
557124435,0sleep10-21swapper/119:28:521
560524332,0sleep00-21swapper/019:29:190
581699220,0cyclictest0-21swapper/221:32:412
5814991616,0cyclictest3571-21lldpd21:47:050
581499130,0cyclictest0-21swapper/021:32:400
8305060,0irq/26-0000:00:6023-21munin-run20:15:533
8305060,0irq/26-0000:00:17292-21sed21:30:533
339960,0migration/39474-21munin-node23:16:153
339960,0migration/327426-21sh21:54:013
339960,0migration/318786-21sh00:39:453
339960,0migration/316017-21munin-node21:26:143
339960,0migration/312014-21sh23:36:303
29815060,0irq/29-eth0-tx-2676-21munin-node20:36:130
29815060,0irq/29-eth0-tx-20228-21munin-run23:25:542
29805060,0irq/28-eth0-rx-3283-21iostat21:41:113
29805060,0irq/28-eth0-rx-2724-21tr00:11:113
29805060,0irq/28-eth0-rx-13889-21fschecks_count20:21:083
29805060,0irq/28-eth0-rx-0-21swapper/323:33:543
29805060,0irq/28-eth0-rx-0-21swapper/300:00:463
179960,0migration/124488-21idleruntime22:31:091
149960,0migration/026490-21taskset21:51:260
149960,0migration/020953-21sh23:42:430
149960,0migration/020154-21sh23:25:430
149960,0migration/017016-21kthreadcore21:06:130
149960,0migration/01380-21sh22:55:590
149960,0migration/013053-21taskset23:39:350
149960,0migration/012423-21sh22:04:410
58169950,0cyclictest0-21swapper/222:07:272
58159955,0cyclictest3524-21snmpd23:11:061
58159955,0cyclictest0-21swapper/122:51:061
58159950,0cyclictest0-21swapper/100:59:071
339950,0migration/39320-21taskset22:59:343
339950,0migration/33660-21fschecks_time21:21:093
339950,0migration/330811-21kthreadcore20:31:113
339950,0migration/32774-21aten_r1power_fr20:36:053
339950,0migration/326969-21timerandwakeup20:26:193
339950,0migration/326603-21kthreadcore20:06:113
339950,0migration/325318-21idleruntime00:06:093
339950,0migration/324639-21taskset00:22:183
339950,0migration/324312-21fschecks_time22:31:083
339950,0migration/321322-21switchtime22:26:203
339950,0migration/320129-21munin-node23:41:183
339950,0migration/318561-21aten_r1power_cu23:06:043
339950,0migration/312618-21kthreadcore23:01:153
339950,0migration/310537-21fschecks_count20:41:063
339950,0migration/310369-21open_files00:51:153
329950,0watchdog/38226-21cat21:01:123
329950,0watchdog/330262-21munin-node22:16:053
329950,0watchdog/327944-21perl23:11:093
329950,0watchdog/323281-21kthreadcore00:41:133
329950,0watchdog/323281-21kthreadcore00:41:133
329950,0watchdog/311332-21cut19:31:123
329950,0watchdog/30-21swapper/321:36:523
29815050,0irq/29-eth0-tx-6361-21munin-node22:21:102
29815050,0irq/29-eth0-tx-21644-21munin-node22:11:132
29815050,0irq/29-eth0-tx-16951-21munin-node20:01:100
29815050,0irq/29-eth0-tx-160962sleep200:17:202
29815050,0irq/29-eth0-tx-14404-21ssh23:57:522
29815050,0irq/29-eth0-tx-0-21swapper/223:45:592
29815050,0irq/29-eth0-tx-0-21swapper/223:36:252
29815050,0irq/29-eth0-tx-0-21swapper/223:32:412
29815050,0irq/29-eth0-tx-0-21swapper/223:14:192
29815050,0irq/29-eth0-tx-0-21swapper/222:16:112
29815050,0irq/29-eth0-tx-0-21swapper/221:56:132
29815050,0irq/29-eth0-tx-0-21swapper/200:49:032
29815050,0irq/29-eth0-tx-0-21swapper/200:26:022
29815050,0irq/29-eth0-tx-0-21swapper/019:45:270
29805050,0irq/28-eth0-rx-8911-21perl22:41:073
29805050,0irq/28-eth0-rx-27500-21latency22:11:123
29805050,0irq/28-eth0-rx-22542-21cpuspeed_turbos23:46:063
29805050,0irq/28-eth0-rx-20973-21kthreadcore00:01:133
29805050,0irq/28-eth0-rx-17745-21kthreadcore22:06:113
29805050,0irq/28-eth0-rx-17642-21cut22:46:083
29805050,0irq/28-eth0-rx-11873-21perl21:46:063
29805050,0irq/28-eth0-rx-0-21swapper/323:53:463
29805050,0irq/28-eth0-rx-0-21swapper/323:29:433
29805050,0irq/28-eth0-rx-0-21swapper/322:36:073
29805050,0irq/28-eth0-rx-0-21swapper/322:01:343
29805050,0irq/28-eth0-rx-0-21swapper/321:56:083
29805050,0irq/28-eth0-rx-0-21swapper/300:46:073
29805050,0irq/28-eth0-rx-0-21swapper/300:31:093
29805050,0irq/28-eth0-rx-0-21swapper/300:26:083
29805050,0irq/28-eth0-rx-0-21swapper/300:15:583
27150,0ktimersoftd/20-21swapper/200:34:042
259950,0migration/25064-21kthreadcore23:16:122
259950,0migration/24905-21munin-node23:51:162
259950,0migration/23505-21munin-node19:51:082
259950,0migration/222632-21sh22:29:202
259950,0migration/219465-21kthreadcore00:21:142
259950,0migration/213048-21kthreadcore21:46:112
249950,0watchdog/28646-21expr20:36:122
249950,0watchdog/211004-21gltestperf21:26:082
179950,0migration/18834-21switchtime00:31:211
179950,0migration/131347-21kthreadcore21:56:131
179950,0migration/125594-21kthreadcore21:51:121
179950,0migration/115434-21kthreadcore22:06:111
179950,0migration/115241-21cpuspeed_turbos22:26:071
179950,0migration/111693-21fschecks_time00:36:081
169950,0watchdog/15229-21kthreadcore22:36:131
169950,0watchdog/128315-21kthreadcore00:26:131
169950,0watchdog/118458-21perl00:21:091
149950,0migration/09683-21fschecks_count00:16:060
149950,0migration/08183-21kthreadcore19:51:120
149950,0migration/0786-21taskset22:54:590
149950,0migration/06849-21taskset22:37:440
149950,0migration/06369-21latency_hist21:00:530
149950,0migration/05489-21kthreadcore21:21:120
149950,0migration/04956-21kthreadcore21:41:130
149950,0migration/029564-21kthreadcore19:46:110
149950,0migration/029011-21idleruntime21:16:090
149950,0migration/028902-21latency_hist23:30:540
149950,0migration/027526-21kthreadcore23:46:120
149950,0migration/026662-21fschecks_count00:26:090
149950,0migration/026074-21kthreadcore22:31:110
149950,0migration/025133-21hwlatdetect20:06:080
149950,0migration/024686-21cpuspeed_turbos20:51:050
149950,0migration/024388-21kthreadcore22:11:110
149950,0migration/024206-21latency_hist00:05:540
149950,0migration/019584-21kthreadcore00:21:140
149950,0migration/019221-21kthreadcore00:01:130
149950,0migration/018414-21kthreadcore19:36:120
149950,0migration/018414-21kthreadcore19:36:120
149950,0migration/016090-21kthreadcore20:21:120
149950,0migration/014556-21kthreadcore00:56:120
149950,0migration/01141-21sh21:39:210
149950,0migration/010118-21munin-node21:26:060
8305040,0irq/26-0000:00:0-21swapper/321:05:533
8305040,0irq/26-0000:00:0-21swapper/222:56:122
8305040,0irq/26-0000:00:0-21swapper/222:30:582
58169944,0cyclictest305350irq/27-eth121:06:162
58169943,0cyclictest7421-21awk20:16:082
58169943,0cyclictest7104-21awk19:31:092
58169943,0cyclictest3571-21lldpd21:22:352
58169943,0cyclictest3524-21snmpd20:06:012
58169943,0cyclictest3524-21snmpd19:37:312
58169943,0cyclictest3524-21snmpd19:37:312
58169943,0cyclictest26921-21awk21:36:092
58169943,0cyclictest21507-21awk19:41:072
58169943,0cyclictest19634-21awk23:06:092
58169943,0cyclictest18297-21awk20:46:092
58169943,0cyclictest14943-21awk23:41:102
58169943,0cyclictest14512-21awk20:21:102
58169943,0cyclictest11169-21awk23:01:132
58169941,0cyclictest0-21swapper/200:41:072
58169941,0cyclictest0-21swapper/200:41:072
58159944,0cyclictest0-21swapper/122:16:161
58159943,0cyclictest6324-21awk23:36:091
58159943,0cyclictest3571-21lldpd22:22:051
58159943,0cyclictest3571-21lldpd22:11:051
58159943,0cyclictest3524-21snmpd21:20:011
58159943,0cyclictest3524-21snmpd20:59:311
58159943,0cyclictest3524-21snmpd00:46:031
58159943,0cyclictest3524-21snmpd00:11:031
58159943,0cyclictest2238-21sadc19:50:531
58159943,0cyclictest21822-21awk20:26:101
58159943,0cyclictest16854-21awk00:01:111
58159943,0cyclictest14322-21awk19:36:091
58159943,0cyclictest14322-21awk19:36:091
58149944,0cyclictest0-21swapper/020:41:180
58149943,0cyclictest8249-21awk23:56:080
58149943,0cyclictest7349-21awk20:16:080
58149943,0cyclictest3571-21lldpd22:26:350
58149943,0cyclictest3571-21lldpd00:47:070
58149943,0cyclictest3524-21snmpd22:08:320
58149943,0cyclictest3524-21snmpd21:15:310
58149943,0cyclictest3250-21irqbalance20:32:500
58149943,0cyclictest21733-21awk20:26:100
58149943,0cyclictest20574-21awk00:41:110
58149943,0cyclictest20574-21awk00:41:110
58149943,0cyclictest17947-21awk22:46:110
58149943,0cyclictest11154-21awk23:01:130
58149942,0cyclictest0-21swapper/020:46:080
339940,0migration/330222-21kthreadcore21:16:113
339940,0migration/325911-21kthreadcore21:11:113
339940,0migration/321146-21kthreadcore20:46:123
329940,0watchdog/30-21swapper/323:21:013
329940,0watchdog/30-21swapper/320:16:083
329940,0watchdog/30-21swapper/319:43:483
329940,0watchdog/30-21swapper/319:36:123
329940,0watchdog/30-21swapper/319:36:123
329940,0watchdog/30-21swapper/300:56:133
29815040,0irq/29-eth0-tx-14372-21ssh22:41:152
29815040,0irq/29-eth0-tx-0-21swapper/223:26:212
29815040,0irq/29-eth0-tx-0-21swapper/222:46:102
29815040,0irq/29-eth0-tx-0-21swapper/221:50:542
29815040,0irq/29-eth0-tx-0-21swapper/200:56:102
29815040,0irq/29-eth0-tx-0-21swapper/200:05:582
29815040,0irq/29-eth0-tx-0-21swapper/200:01:072
29815040,0irq/29-eth0-tx-0-21swapper/021:00:430
29815040,0irq/29-eth0-tx-0-21swapper/020:15:330
29805040,0irq/28-eth0-rx-24787-21df_abs20:51:063
29805040,0irq/28-eth0-rx-0-21swapper/322:51:443
29805040,0irq/28-eth0-rx-0-21swapper/322:21:113
29805040,0irq/28-eth0-rx-0-21swapper/320:56:063
259940,0migration/26846-21df_abs21:01:082
259940,0migration/2521-21kthreadcore20:31:112
259940,0migration/23939-21kthreadcore20:56:122
259940,0migration/232739-21latency_hist00:10:542
259940,0migration/231688-21kthreadcore19:46:112
259940,0migration/227073-21munin-node21:11:182
259940,0migration/226493-21iostat22:51:102
259940,0migration/213108-21kthreadcore20:41:112
259940,0migration/210093-21kthreadcore22:01:112
249940,0watchdog/25230-21kthreadcore22:36:132
249940,0watchdog/216638-21kthreadcore00:36:132
249940,0watchdog/20-21swapper/221:41:082
249940,0watchdog/20-21swapper/200:51:132
179940,0migration/19117-21kthreadcore22:01:111
179940,0migration/17721-21kthreadcore23:16:131
179940,0migration/14396-21taskset23:34:161
179940,0migration/13788-21kthreadcore20:11:121
179940,0migration/13359-21fschecks_time19:51:071
179940,0migration/131013-21aten_r1power_vo23:51:061
179940,0migration/130797-21runrttasks20:07:051
179940,0migration/129271-21kthreadcore21:36:121
179940,0migration/127104-21taskset19:42:061
179940,0migration/12108-21taskset20:32:221
179940,0migration/120901-21kthreadcore20:46:121
179940,0migration/119999-21kthreadcore20:01:101
179940,0migration/119255-21kthreadcore22:46:121
179940,0migration/119115-21munin-node23:06:071
179940,0migration/113838-21runrttasks20:21:071
179940,0migration/113064-21kthreadcore19:56:121
179940,0migration/111494-21kthreadcore22:41:111
179940,0migration/110685-21fschecks_count21:26:081
169940,0watchdog/17400-21if_eth1.220:16:081
169940,0watchdog/15044-21cat21:21:121
169940,0watchdog/14333-21cut21:41:121
169940,0watchdog/123612-21munin-node21:31:161
169940,0watchdog/118651-21grep23:41:131
169940,0watchdog/114184-21ssh23:57:131
169940,0watchdog/110029-21ssh23:01:011
169940,0watchdog/10-21swapper/120:36:121
169940,0watchdog/10-21swapper/100:51:131
169940,0watchdog/10-21swapper/100:41:131
169940,0watchdog/10-21swapper/100:41:131
169940,0watchdog/10-21swapper/100:16:091
149940,0migration/010457-21kthreadcore22:21:120
12289240,0sleep00-21swapper/019:31:190
58169933,0cyclictest305350irq/27-eth120:51:302
58169933,0cyclictest305350irq/27-eth120:02:402
58169932,0cyclictest29113-21awk21:16:092
58169930,0cyclictest0-21swapper/219:56:082
58159933,0cyclictest3571-21lldpd22:56:061
58159932,0cyclictest7074-21awk19:31:091
58159932,0cyclictest25251-21fschecks_time20:51:071
58159932,0cyclictest21593-21awk23:26:111
58159932,0cyclictest19840-21smartctl21:06:181
58159932,0cyclictest10492-21tune2fs20:41:061
58159930,0cyclictest25658-21tr21:11:111
58159930,0cyclictest12685-21tune2fs23:21:071
58149933,0cyclictest0-21swapper/023:50:570
58149932,0cyclictest3571-21lldpd23:19:360
58149932,0cyclictest3524-21snmpd23:06:050
58149932,0cyclictest3471-21awk00:31:110
58149932,0cyclictest28240-21awk23:11:110
58149932,0cyclictest20511-21munin-node23:26:100
58149932,0cyclictest10853-21awk19:56:100
58149930,0cyclictest5285-21if_err_eth100:51:100
58149930,0cyclictest30590-21munin-node22:16:060
58149930,0cyclictest29245-21fschecks_time21:56:080
58149930,0cyclictest1325-21perl00:11:080
58149930,0cyclictest11648-21perl00:36:080
58149930,0cyclictest11200-21kthreadcore22:41:110
329930,0watchdog/30-21swapper/320:02:563
329930,0watchdog/30-21swapper/319:56:123
329930,0watchdog/30-21swapper/319:51:163
329930,0watchdog/30-21swapper/319:45:563
259930,0migration/21006-21kthreadcore20:11:112
249930,0watchdog/224167-21ps20:26:122
179930,0migration/110942-21sh21:45:581
169930,0watchdog/10-21swapper/123:46:371
169930,0watchdog/10-21swapper/121:01:121
169930,0watchdog/10-21swapper/100:06:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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