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2026-04-01 - 08:06
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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 Wed Apr 01, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1220523828,0sleep30-21swapper/319:16:133
1235523325,0sleep20-21swapper/219:18:002
1213023127,0sleep10-21swapper/119:15:191
1243822925,0sleep00-21swapper/019:18:580
8305060,0irq/26-0000:00:8431-21processes20:19:252
35160,0ktimersoftd/30-21swapper/323:10:473
339960,0migration/37644-21sh00:38:313
339960,0migration/36821-21sh22:22:463
339960,0migration/329978-21sh22:16:173
339960,0migration/326657-21sh00:07:213
339960,0migration/324183-21munin-node00:29:193
339960,0migration/318817-21sh21:50:223
339960,0migration/31582-21taskset19:33:033
29815060,0irq/29-eth0-tx-9472-21munin-node20:24:260
29805060,0irq/28-eth0-rx-6314-21runrttasks22:29:533
29805060,0irq/28-eth0-rx-14164-21munin-run23:24:053
149960,0migration/013735-21pmu-power22:24:230
149960,0migration/013610-21sh23:22:360
149960,0migration/01290-21kthreadcore00:34:240
125169965,0cyclictest27291-21basename00:09:051
125159965,0cyclictest24156-21munin-node21:19:310
125159960,0cyclictest10241-21ssh21:45:340
125159960,0cyclictest0-21swapper/022:44:220
8305050,0irq/26-0000:00:6953-21if_eth1.323:19:202
8305050,0irq/26-0000:00:0-21swapper/222:09:042
339950,0migration/38935-21taskset19:38:473
339950,0migration/37251-21irqrtprio19:59:203
339950,0migration/36422-21munin-node22:04:213
339950,0migration/35528-21kthreadcore21:04:223
339950,0migration/34609-21irqrtprio21:44:213
339950,0migration/3332-21kthreadcore20:59:223
339950,0migration/330254-21kthreadcore21:39:223
339950,0migration/330181-21sshd19:49:373
339950,0migration/328609-21munin-node00:09:203
339950,0migration/327577-21kthreadcore21:19:233
339950,0migration/322675-21kthreadcore22:49:213
339950,0migration/322261-21kthreadcore20:09:213
339950,0migration/322261-21kthreadcore20:09:213
339950,0migration/319933-21missed_timers22:09:233
339950,0migration/319555-21taskset23:06:273
339950,0migration/317634-21fschecks_time00:44:183
339950,0migration/315115-21kthreadcore21:09:263
339950,0migration/313727-21kthreadcore00:39:233
339950,0migration/311843-21kthreadcore20:24:223
339950,0migration/310100-21unixbench_multi22:59:303
29815050,0irq/29-eth0-tx-7469-21ssh21:25:142
29815050,0irq/29-eth0-tx-31470-21ssh21:21:342
29815050,0irq/29-eth0-tx-30442-21ssh00:31:012
29815050,0irq/29-eth0-tx-11846-21munin-run23:04:042
29815050,0irq/29-eth0-tx-0-21swapper/223:37:572
29815050,0irq/29-eth0-tx-0-21swapper/223:14:322
29815050,0irq/29-eth0-tx-0-21swapper/222:58:292
29815050,0irq/29-eth0-tx-0-21swapper/222:36:582
29815050,0irq/29-eth0-tx-0-21swapper/222:31:302
29815050,0irq/29-eth0-tx-0-21swapper/200:45:112
29815050,0irq/29-eth0-tx-0-21swapper/020:13:280
29815050,0irq/29-eth0-tx-0-21swapper/020:13:280
29805050,0irq/28-eth0-rx-4771-21kthreadcore22:39:213
29805050,0irq/28-eth0-rx-29026-21kthreadcore22:34:233
29805050,0irq/28-eth0-rx-2760-21kthreadcore21:24:223
29805050,0irq/28-eth0-rx-18643-21kthreadcore21:14:193
29805050,0irq/28-eth0-rx-17337-21ssh21:33:053
29805050,0irq/28-eth0-rx-14872-21entropy23:24:173
29805050,0irq/28-eth0-rx-0-21swapper/323:39:213
29805050,0irq/28-eth0-rx-0-21swapper/323:14:223
29805050,0irq/28-eth0-rx-0-21swapper/322:56:363
29805050,0irq/28-eth0-rx-0-21swapper/322:44:473
29805050,0irq/28-eth0-rx-0-21swapper/322:25:193
29805050,0irq/28-eth0-rx-0-21swapper/321:59:233
29805050,0irq/28-eth0-rx-0-21swapper/319:39:223
27150,0ktimersoftd/20-21swapper/221:10:052
259950,0migration/26921-21munin-node19:59:202
259950,0migration/229764-21sh22:15:422
259950,0migration/227506-21sh00:09:062
259950,0migration/223030-21sh23:44:282
259950,0migration/220910-21munin-node23:24:292
259950,0migration/218934-21munin-node20:04:262
259950,0migration/218636-21sh00:04:032
249950,0watchdog/218914-21sh00:04:122
19150,0ktimersoftd/10-21swapper/121:10:051
19150,0ktimersoftd/10-21swapper/100:48:001
179950,0migration/121055-21gltestperf20:09:171
179950,0migration/121055-21gltestperf20:09:171
179950,0migration/112657-21kthreadcore21:29:221
149950,0migration/08825-21kthreadcore00:19:180
149950,0migration/07622-21taskset23:38:400
149950,0migration/06484-21sh22:21:500
149950,0migration/0553-21kthreadcore22:54:230
149950,0migration/04988-21irqrtprio22:59:220
149950,0migration/04197-21sh23:15:330
149950,0migration/04154-21kthreadcore20:19:210
149950,0migration/03929-21kthreadcore21:24:230
149950,0migration/032507-21sh22:37:000
149950,0migration/028897-21kthreadcore21:39:220
149950,0migration/028099-21fschecks_count00:09:180
149950,0migration/027804-21df_abs20:14:180
149950,0migration/025560-21kthreadcore00:29:220
149950,0migration/025301-21runrttasks23:49:110
149950,0migration/023898-21kthreadcore21:34:230
149950,0migration/022663-21munin-node20:29:250
149950,0migration/021353-21kthreadcore19:44:230
149950,0migration/021164-21kthreadcore22:49:210
149950,0migration/020344-21irqcore00:04:230
149950,0migration/01798-21kthreadcore21:59:230
149950,0migration/017926-21idleruntime21:14:170
149950,0migration/017212-21kthreadcore20:04:240
149950,0migration/016329-21run-parts21:10:040
149950,0migration/011650-21kthreadcore21:29:220
125179950,0cyclictest0-21swapper/221:54:202
125169954,0cyclictest1071-21perl21:24:181
125169950,0cyclictest0-21swapper/123:46:121
125169950,0cyclictest0-21swapper/123:16:051
125169950,0cyclictest0-21swapper/122:58:351
125169950,0cyclictest0-21swapper/122:02:271
125169950,0cyclictest0-21swapper/100:30:491
125169950,0cyclictest0-21swapper/100:22:561
125169950,0cyclictest0-21swapper/100:13:571
125169950,0cyclictest0-21swapper/100:01:581
125159955,0cyclictest0-21swapper/023:12:450
125159955,0cyclictest0-21swapper/021:49:110
8305040,0irq/26-0000:00:0-21swapper/223:54:052
8305040,0irq/26-0000:00:0-21swapper/220:24:202
339940,0migration/39577-21kthreadcore20:44:213
339940,0migration/322619-21kthreadcore19:24:223
339940,0migration/321046-21fschecks_time20:54:173
339940,0migration/318534-21kthreadcore19:44:223
339940,0migration/312540-21kthreadcore23:59:223
329940,0watchdog/36314-21runrttasks19:57:073
329940,0watchdog/30-21swapper/320:39:553
329940,0watchdog/30-21swapper/320:34:193
329940,0watchdog/30-21swapper/320:14:233
329940,0watchdog/30-21swapper/300:28:123
29815040,0irq/29-eth0-tx-9563-21rsyslogd19:59:380
29815040,0irq/29-eth0-tx-23893-21diskmemload00:24:252
29815040,0irq/29-eth0-tx-0-21swapper/223:49:252
29815040,0irq/29-eth0-tx-0-21swapper/223:39:292
29815040,0irq/29-eth0-tx-0-21swapper/223:09:182
29815040,0irq/29-eth0-tx-0-21swapper/223:04:102
29815040,0irq/29-eth0-tx-0-21swapper/222:45:202
29815040,0irq/29-eth0-tx-0-21swapper/222:24:162
29815040,0irq/29-eth0-tx-0-21swapper/222:04:312
29815040,0irq/29-eth0-tx-0-21swapper/221:44:342
29815040,0irq/29-eth0-tx-0-21swapper/221:39:302
29815040,0irq/29-eth0-tx-0-21swapper/221:29:172
29815040,0irq/29-eth0-tx-0-21swapper/200:34:182
29815040,0irq/29-eth0-tx-0-21swapper/019:24:200
29805040,0irq/28-eth0-rx-18686-21kthreadcore20:29:223
29805040,0irq/28-eth0-rx-0-21swapper/323:57:403
29805040,0irq/28-eth0-rx-0-21swapper/323:49:093
29805040,0irq/28-eth0-rx-0-21swapper/323:44:193
29805040,0irq/28-eth0-rx-0-21swapper/323:34:233
29805040,0irq/28-eth0-rx-0-21swapper/323:29:193
29805040,0irq/28-eth0-rx-0-21swapper/321:54:113
29805040,0irq/28-eth0-rx-0-21swapper/321:34:063
29805040,0irq/28-eth0-rx-0-21swapper/319:19:203
29805040,0irq/28-eth0-rx-0-21swapper/300:19:073
29805040,0irq/28-eth0-rx-0-21swapper/300:16:043
259940,0migration/27999-21kthreadcore20:44:202
259940,0migration/26499-21kthreadcore21:04:232
259940,0migration/25076-21munin-node22:19:252
259940,0migration/23771-21latency_hist00:14:052
259940,0migration/222141-21kthreadcore22:49:212
259940,0migration/219867-21kthreadcore21:34:212
259940,0migration/218037-21kthreadcore19:44:222
259940,0migration/216878-21latency_hist21:14:042
259940,0migration/21368-21cpuspeed_turbos22:39:162
259940,0migration/211911-21aten_r1power_po21:49:142
249940,0watchdog/224074-21hddtemp_smartct23:29:202
249940,0watchdog/216838-21kthreadcore19:19:232
249940,0watchdog/20-21swapper/220:59:192
249940,0watchdog/20-21swapper/220:34:192
179940,0migration/19554-21switchtime21:44:291
179940,0migration/18898-21taskset20:20:091
179940,0migration/17003-21kthreadcore22:04:231
179940,0migration/14781-21switchtime19:54:281
179940,0migration/130363-21kthreadcore19:29:241
179940,0migration/129734-21kthreadcore20:59:211
179940,0migration/123259-21taskset22:30:161
179940,0migration/118766-21kthreadcore00:24:231
179940,0migration/118075-21aten_r1power_cu21:34:151
179940,0migration/116606-21kthreadcore21:49:211
179940,0migration/115309-21irqcore22:09:211
179940,0migration/113487-21kthreadcore23:39:221
179940,0migration/112782-21aten_r1power_en19:19:161
169940,0watchdog/129104-21ssh23:14:001
169940,0watchdog/127619-21kthreadcore23:29:241
169940,0watchdog/11974-21kthreadcore00:34:241
169940,0watchdog/118356-21port_sshpriv23:04:281
169940,0watchdog/117340-21diskstats21:14:151
169940,0watchdog/110070-21kthreadcore22:24:191
169940,0watchdog/10-21swapper/122:14:111
169940,0watchdog/10-21swapper/120:34:191
169940,0watchdog/10-21swapper/120:14:231
149940,0migration/06925-21gltestperf20:44:170
149940,0migration/029513-21kthreadcore20:59:210
149940,0migration/029328-21kthreadcore20:34:240
149940,0migration/015460-21runrttasks23:41:270
149940,0migration/015345-21gltestperf23:24:170
125179944,0cyclictest31969-21kthreadcore21:59:222
125179943,0cyclictest6977-21awk00:19:162
125179943,0cyclictest3524-21snmpd19:39:202
125179943,0cyclictest3524-21snmpd19:34:202
125179943,0cyclictest3524-21snmpd00:39:232
125179943,0cyclictest31839-21awk19:54:182
125179943,0cyclictest28175-21awk19:29:212
125179943,0cyclictest21529-21awk20:54:202
125179943,0cyclictest20971-21awk19:24:202
125179943,0cyclictest1946-21sadc20:19:042
125179943,0cyclictest13823-21sort20:49:172
125169944,0cyclictest0-21swapper/123:20:111
125169944,0cyclictest0-21swapper/120:49:181
125169943,0cyclictest7052-21awk20:44:191
125169943,0cyclictest3571-21lldpd23:55:281
125169943,0cyclictest3571-21lldpd23:49:281
125169943,0cyclictest3571-21lldpd22:43:251
125169943,0cyclictest3571-21lldpd22:37:261
125169943,0cyclictest3571-21lldpd22:21:551
125169943,0cyclictest3571-21lldpd21:19:551
125169943,0cyclictest3571-21lldpd20:40:551
125169943,0cyclictest3571-21lldpd19:41:231
125169943,0cyclictest3571-21lldpd19:37:231
125169943,0cyclictest3524-21snmpd22:49:071
125169943,0cyclictest3524-21snmpd19:28:201
125169943,0cyclictest3521-21awk21:04:201
125169943,0cyclictest3250-21irqbalance23:35:211
125169943,0cyclictest3250-21irqbalance20:24:301
125169943,0cyclictest27992-21awk21:39:201
125169943,0cyclictest24784-21awk19:49:201
125169943,0cyclictest21457-21awk20:54:191
125169943,0cyclictest17721-21awk20:29:201
125169943,0cyclictest15561-21awk23:24:191
125159944,0cyclictest0-21swapper/023:56:060
125159944,0cyclictest0-21swapper/000:16:450
125159943,0cyclictest9294-21awk00:39:210
125159943,0cyclictest6481-21awk22:04:210
125159943,0cyclictest4506-21kworker/0:019:54:290
125159943,0cyclictest4506-21kworker/0:019:40:090
125159943,0cyclictest28238-21awk19:29:220
125159943,0cyclictest2218-21awk22:39:190
125159943,0cyclictest13269-21awk23:04:220
8305030,0irq/26-0000:00:0-21swapper/220:39:052
329930,0watchdog/30-21swapper/320:49:273
329930,0watchdog/30-21swapper/320:04:473
29805030,0irq/28-eth0-rx-0-21swapper/320:19:163
179930,0migration/119844-21runrttasks20:08:171
179930,0migration/117660-21irqcore19:44:211
169930,0watchdog/10-21swapper/123:00:081
169930,0watchdog/10-21swapper/122:44:081
169930,0watchdog/10-21swapper/100:15:001
125179932,0cyclictest3524-21snmpd20:09:052
125179932,0cyclictest3524-21snmpd20:09:052
125169933,0cyclictest3571-21lldpd00:39:581
125169932,0cyclictest6822-21awk19:59:191
125169932,0cyclictest21482-21awk21:54:201
125159933,0cyclictest4506-21kworker/0:020:39:090
125159933,0cyclictest4506-21kworker/0:019:49:050
125159933,0cyclictest4506-21kworker/0:019:19:070
125159933,0cyclictest20162-21kworker/0:220:54:050
125159933,0cyclictest18000-21kworker/0:123:44:580
125159933,0cyclictest18000-21kworker/0:123:29:060
125159933,0cyclictest18000-21kworker/0:122:29:200
125159933,0cyclictest18000-21kworker/0:122:14:180
125159933,0cyclictest18000-21kworker/0:121:54:100
125159933,0cyclictest18000-21kworker/0:100:44:100
125159933,0cyclictest18000-21kworker/0:100:24:160
125159932,0cyclictest2918-21tune2fs21:04:180
125159932,0cyclictest14011-21munin-node22:09:180
125159932,0cyclictest11394-21awk23:59:200
125159930,0cyclictest2346-21diskstats19:34:180
125159930,0cyclictest13182-21munin-node20:49:190
125179921,0cyclictest3524-21snmpd19:49:052
125179921,0cyclictest0-21swapper/220:29:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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