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2026-06-25 - 08:31
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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 Thu Jun 25, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
644924443,0sleep00-21swapper/019:21:330
3220724435,0sleep20-21swapper/219:21:112
654423927,0sleep30-21swapper/319:22:403
682823627,0sleep10-21swapper/119:25:541
8305060,0irq/26-0000:00:10140-21proc_pri21:16:243
69289960,0cyclictest3765-21date20:31:032
69149960,0cyclictest0-21swapper/021:32:250
35160,0ktimersoftd/30-21swapper/321:41:483
35160,0ktimersoftd/30-21swapper/300:00:233
339960,0migration/39143-21sh22:16:063
339960,0migration/36657-21sh23:09:483
339960,0migration/331703-21timerandwakeup00:36:293
339960,0migration/321921-21sh00:14:093
339960,0migration/319587-21sh22:40:183
339960,0migration/318177-21sh00:49:463
339960,0migration/317105-21munin-node23:16:193
339960,0migration/312985-21runrttasks00:08:203
29805060,0irq/28-eth0-rx-15475-21cut23:51:223
29805060,0irq/28-eth0-rx-0-21swapper/323:01:143
149960,0migration/0891-21gltestperf20:06:170
149960,0migration/027419-21gltestperf22:26:180
149960,0migration/012704-21fschecks_time23:51:180
8305050,0irq/26-0000:00:31422-21wc00:21:042
69289955,0cyclictest0-21swapper/223:09:212
69289955,0cyclictest0-21swapper/221:41:032
69289954,0cyclictest29104-1kworker/2:0H23:28:062
69289954,0cyclictest29104-1kworker/2:0H23:28:062
69289950,0cyclictest0-21swapper/223:50:582
69289950,0cyclictest0-21swapper/223:45:272
69289950,0cyclictest0-21swapper/223:00:122
69289950,0cyclictest0-21swapper/200:42:412
69149955,0cyclictest0-21swapper/023:22:370
69149955,0cyclictest0-21swapper/000:12:350
69149953,0cyclictest3810-21kworker/0:123:44:230
69149950,0cyclictest0-21swapper/022:31:320
69149950,0cyclictest0-21swapper/022:02:030
339950,0migration/38311-21munin-node19:26:183
339950,0migration/33007-21munin-node20:26:293
339950,0migration/329531-21kthreadcore23:41:203
339950,0migration/328315-21taskset19:39:223
339950,0migration/328261-21kthreadcore00:16:233
339950,0migration/327379-21df_abs21:31:183
339950,0migration/320226-21kthreadcore19:56:203
339950,0migration/318324-21kthreadcore22:56:213
339950,0migration/31654-21munin-node22:11:213
339950,0migration/312829-21kthreadcore23:31:223
339950,0migration/31202-21kthreadcore21:51:223
329950,0watchdog/36007-21kthreadcore21:36:193
329950,0watchdog/311717-21perl19:51:183
329950,0watchdog/30-21swapper/300:41:193
29815050,0irq/29-eth0-tx-25466-21munin-node20:46:170
29815050,0irq/29-eth0-tx-25408-21timerwakeupswit00:51:292
29815050,0irq/29-eth0-tx-0-21swapper/223:37:022
29815050,0irq/29-eth0-tx-0-21swapper/222:16:132
29815050,0irq/29-eth0-tx-0-21swapper/222:10:312
29815050,0irq/29-eth0-tx-0-21swapper/200:13:242
29815050,0irq/29-eth0-tx-0-21swapper/020:56:200
29815050,0irq/29-eth0-tx-0-21swapper/020:45:340
29815050,0irq/29-eth0-tx-0-21swapper/020:36:200
29815050,0irq/29-eth0-tx-0-21swapper/020:16:030
29815050,0irq/29-eth0-tx-0-21swapper/020:11:140
29815050,0irq/29-eth0-tx-0-21swapper/019:50:030
29815050,0irq/29-eth0-tx-0-21swapper/019:36:230
29805050,0irq/28-eth0-rx-6960-21sh21:56:153
29805050,0irq/28-eth0-rx-5368-21cpuspeed_turbos22:51:153
29805050,0irq/28-eth0-rx-479-21kthreadcore22:46:223
29805050,0irq/28-eth0-rx-3217-21python00:01:273
29805050,0irq/28-eth0-rx-29480-21kthreadcore23:21:213
29805050,0irq/28-eth0-rx-27423-21expr22:26:183
29805050,0irq/28-eth0-rx-23520-21sh00:32:103
29805050,0irq/28-eth0-rx-23049-21kthreadcore22:21:203
29805050,0irq/28-eth0-rx-21187-21kthreadcore22:01:233
29805050,0irq/28-eth0-rx-1828-21fschecks_time23:26:173
29805050,0irq/28-eth0-rx-1828-21fschecks_time23:26:173
29805050,0irq/28-eth0-rx-0-21swapper/323:36:193
29805050,0irq/28-eth0-rx-0-21swapper/322:43:003
29805050,0irq/28-eth0-rx-0-21swapper/322:31:543
29805050,0irq/28-eth0-rx-0-21swapper/321:26:183
29805050,0irq/28-eth0-rx-0-21swapper/320:51:163
29805050,0irq/28-eth0-rx-0-21swapper/320:41:193
29805050,0irq/28-eth0-rx-0-21swapper/300:21:583
259950,0migration/29991-21kthreadcore19:26:202
259950,0migration/224703-21munin-node20:41:272
259950,0migration/218270-21munin-node22:21:152
259950,0migration/215272-21gltestperf19:31:172
259950,0migration/213809-21kthreadcore19:51:222
259950,0migration/213168-21fschecks_count21:41:162
259950,0migration/211127-21kthreadcore20:11:212
259950,0migration/210125-21latency_hist00:46:042
249950,0watchdog/26558-21python20:51:262
179950,0migration/132062-21fschecks_count00:21:161
179950,0migration/130603-21cpu21:51:161
179950,0migration/126049-21fschecks_time20:01:161
179950,0migration/124881-21aten2.4-expect23:21:141
179950,0migration/121836-21munin-node22:01:261
179950,0migration/12165-21kthreadcore20:51:201
179950,0migration/121538-21latency_hist20:21:031
179950,0migration/121033-21sh22:57:591
179950,0migration/11781-21sh22:29:131
179950,0migration/117438-21taskset19:51:531
179950,0migration/113644-21latency_hist22:56:041
179950,0migration/111521-21kthreadcore20:56:221
179950,0migration/110624-21idleruntime-cro19:51:031
169950,0watchdog/12237-21cut23:06:231
149950,0migration/09809-21kthreadcore22:51:210
149950,0migration/08327-21munin-node23:11:180
149950,0migration/07081-21latency_hist19:26:030
149950,0migration/06018-21kthreadcore20:51:210
149950,0migration/05559-21taskset21:53:250
149950,0migration/03916-21ksmtuned22:48:290
149950,0migration/031346-21cpuspeed_turbos23:06:170
149950,0migration/030413-21kthreadcore19:41:190
149950,0migration/030293-21taskset23:04:380
149950,0migration/029399-21aten2.4-expect00:01:160
149950,0migration/028637-21latency_hist22:46:040
149950,0migration/028182-21kthreadcore00:16:230
149950,0migration/02789-21kthreadcore22:11:220
149950,0migration/025958-21fschecks_time00:36:170
149950,0migration/025048-21fschecks_time22:06:170
149950,0migration/024763-21switchtime23:36:270
149950,0migration/024242-21kthreadcore21:26:230
149950,0migration/020854-21kthreadcore00:31:230
149950,0migration/020755-21munin-node21:01:250
149950,0migration/019654-21sh22:40:290
149950,0migration/017858-21munin-node22:21:140
149950,0migration/013755-21taskset00:10:250
149950,0migration/012913-21kthreadcore19:51:220
149950,0migration/011790-21kthreadcore23:31:210
149950,0migration/011741-21sh21:39:480
149950,0migration/010154-21latency_hist00:46:040
69289943,0cyclictest3571-21lldpd23:51:062
69289943,0cyclictest3571-21lldpd23:16:062
69289943,0cyclictest3571-21lldpd22:51:352
69289943,0cyclictest3571-21lldpd22:43:052
69289943,0cyclictest3571-21lldpd22:26:052
69289943,0cyclictest3571-21lldpd21:13:342
69289943,0cyclictest3571-21lldpd19:44:332
69289943,0cyclictest3250-21irqbalance20:56:102
69289943,0cyclictest3250-21irqbalance20:47:202
69289943,0cyclictest3250-21irqbalance20:36:102
69289943,0cyclictest3250-21irqbalance20:26:202
69289943,0cyclictest31482-21awk21:51:192
69289943,0cyclictest26284-21awk00:36:192
69289943,0cyclictest24063-21awk00:16:212
69289940,0cyclictest11520-21munin-node22:36:182
69209943,0cyclictest4900-21awk20:31:201
69209943,0cyclictest3571-21lldpd23:46:351
69209943,0cyclictest3571-21lldpd22:41:341
69209943,0cyclictest3571-21lldpd22:06:051
69209943,0cyclictest3571-21lldpd19:57:031
69209943,0cyclictest3571-21lldpd19:42:031
69209943,0cyclictest3571-21lldpd19:26:331
69209943,0cyclictest3524-21snmpd00:37:031
69209943,0cyclictest30354-21awk00:01:201
69209943,0cyclictest2576-21awk00:41:191
69209943,0cyclictest22580-21awk19:36:171
69209943,0cyclictest2151-21awk23:26:201
69209943,0cyclictest2151-21awk23:26:201
69209943,0cyclictest12295-21awk21:21:181
69209943,0cyclictest10383-21awk22:16:211
69209940,0cyclictest0-21swapper/123:58:301
69149944,0cyclictest0-21swapper/000:00:370
69149943,0cyclictest3571-21lldpd21:11:040
69149943,0cyclictest3571-21lldpd20:31:330
69149943,0cyclictest3250-21irqbalance00:51:210
69149943,0cyclictest22545-21awk21:46:180
69149943,0cyclictest21195-21sadc21:46:040
69149943,0cyclictest19087-21awk19:56:180
339940,0migration/322876-21kthreadcore00:51:223
329940,0watchdog/37075-21taskset20:10:503
329940,0watchdog/313361-21missed_timers23:11:233
329940,0watchdog/30-21swapper/322:06:233
329940,0watchdog/30-21swapper/321:11:193
329940,0watchdog/30-21swapper/321:07:073
329940,0watchdog/30-21swapper/320:31:223
29815040,0irq/29-eth0-tx-442-21telnet22:11:162
29815040,0irq/29-eth0-tx-28802-21munin-node22:46:202
29815040,0irq/29-eth0-tx-2767-21munin-node22:31:172
29815040,0irq/29-eth0-tx-17108-21ssh22:01:212
29815040,0irq/29-eth0-tx-0-21swapper/223:56:052
29815040,0irq/29-eth0-tx-0-21swapper/223:01:192
29815040,0irq/29-eth0-tx-0-21swapper/200:31:552
29815040,0irq/29-eth0-tx-0-21swapper/200:27:252
29815040,0irq/29-eth0-tx-0-21swapper/200:06:132
29815040,0irq/29-eth0-tx-0-21swapper/021:16:220
29815040,0irq/29-eth0-tx-0-21swapper/020:21:160
29805040,0irq/28-eth0-rx-0-21swapper/323:46:073
29805040,0irq/28-eth0-rx-0-21swapper/321:46:173
29805040,0irq/28-eth0-rx-0-21swapper/300:27:563
259940,0migration/28448-21kernelversion21:56:212
259940,0migration/25867-21kthreadcore20:06:222
259940,0migration/230719-21kthreadcore20:01:222
259940,0migration/230039-21fschecks_time00:01:182
259940,0migration/227625-21fschecks_count21:31:192
259940,0migration/227308-21kthreadcore23:21:202
259940,0migration/224630-21kthreadcore20:21:202
259940,0migration/224223-21kthreadcore21:46:202
259940,0migration/222990-21kthreadcore19:56:212
259940,0migration/219660-21if_eth1.321:26:202
259940,0migration/215200-21kthreadcore23:31:222
259940,0migration/214753-21runrttasks21:01:072
249940,0watchdog/24090-21hostname21:16:152
249940,0watchdog/20-21swapper/223:11:232
19140,0ktimersoftd/10-21swapper/123:14:121
179940,0migration/15564-21kthreadcore21:36:181
179940,0migration/132066-21kthreadcore23:41:211
179940,0migration/128877-21kthreadcore21:31:231
179940,0migration/125722-21kthreadcore20:21:201
179940,0migration/124220-21kthreadcore21:06:211
179940,0migration/121098-21kthreadcore00:51:211
179940,0migration/120142-21kthreadcore20:41:191
179940,0migration/118833-21kthreadcore23:16:221
179940,0migration/118821-21sh22:38:121
179940,0migration/114587-21kthreadcore20:36:221
179940,0migration/11265-21fschecks_time22:11:191
179940,0migration/112485-21latency_hist21:41:041
179940,0migration/112283-21cpuspeed_turbos23:51:161
179940,0migration/111001-21kthreadcore20:11:211
169940,0watchdog/16931-21cut22:31:231
169940,0watchdog/14825-21ssh22:50:591
169940,0watchdog/130961-21kthreadcore21:11:191
169940,0watchdog/127883-21python21:46:271
169940,0watchdog/119302-21kthreadcore21:01:231
169940,0watchdog/117988-21ssh00:49:151
169940,0watchdog/117789-21ssh22:21:071
169940,0watchdog/115831-21irqstats00:11:191
169940,0watchdog/115114-21ssh00:27:471
169940,0watchdog/112980-21ssh00:08:191
169940,0watchdog/10-21swapper/123:01:431
169940,0watchdog/10-21swapper/120:10:501
149940,0migration/04175-21fschecks_time23:46:170
149940,0migration/04130-21kthreadcore00:21:210
149940,0migration/029050-21aten_r1power_fr20:26:150
149940,0migration/013942-21aten_r1power_vo22:56:150
149940,0migration/013595-21kthreadcore22:16:230
8305030,0irq/26-0000:00:14636-21telnet20:16:153
69289933,0cyclictest0-21swapper/220:16:142
69289932,0cyclictest3571-21lldpd19:37:032
69289930,0cyclictest12053-21perl21:21:162
69289930,0cyclictest0-21swapper/219:46:212
69209932,0cyclictest3571-21lldpd20:46:341
69209932,0cyclictest27369-21kthreadcore00:16:231
69209932,0cyclictest19662-21awk21:26:201
69209930,0cyclictest19248-21perl23:36:161
69149933,0cyclictest5614-21kworker/0:200:26:050
69149933,0cyclictest3810-21kworker/0:123:26:150
69149933,0cyclictest3810-21kworker/0:123:26:150
69149933,0cyclictest3810-21kworker/0:123:16:070
69149933,0cyclictest31665-21kworker/0:021:56:230
69149933,0cyclictest31665-21kworker/0:021:21:090
69149933,0cyclictest31212-21kworker/0:120:01:070
69149933,0cyclictest31212-21kworker/0:119:31:160
69149932,0cyclictest2591-21awk00:41:190
69149932,0cyclictest23018-21awk21:06:190
329930,0watchdog/30-21swapper/321:21:193
329930,0watchdog/30-21swapper/321:01:233
329930,0watchdog/30-21swapper/320:21:143
329930,0watchdog/30-21swapper/320:15:543
329930,0watchdog/30-21swapper/320:01:183
329930,0watchdog/30-21swapper/319:31:143
29805030,0irq/28-eth0-rx-0-21swapper/320:57:003
29805030,0irq/28-eth0-rx-0-21swapper/320:48:063
29805030,0irq/28-eth0-rx-0-21swapper/320:39:233
29805030,0irq/28-eth0-rx-0-21swapper/319:41:143
249930,0watchdog/20-21swapper/221:06:192
179930,0migration/1607-21kthreadcore20:26:211
169930,0watchdog/113726-21ssh21:56:511
169930,0watchdog/10-21swapper/123:32:031
169930,0watchdog/10-21swapper/121:16:151
169930,0watchdog/10-21swapper/119:31:061
169930,0watchdog/10-21swapper/100:32:431
329920,0watchdog/30-21swapper/319:46:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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