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2026-04-24 - 22:09
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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 Fri Apr 24, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2275223930,0sleep30-21swapper/307:19:113
2258923727,0sleep20-21swapper/207:17:182
2270523624,0sleep10-21swapper/107:18:331
2254522824,0sleep00-21swapper/007:16:440
229829999,0cyclictest4554-21sensors08:11:220
339970,0migration/313881-21munin-node07:36:163
35160,0ktimersoftd/30-21swapper/311:17:103
35160,0ktimersoftd/30-21swapper/311:03:463
339960,0migration/39619-21sh11:33:323
339960,0migration/3946-21sh11:28:413
339960,0migration/33589-21sh09:37:043
339960,0migration/326519-21sh10:28:433
229839965,0cyclictest0-21swapper/109:33:301
229829965,0cyclictest0-21swapper/012:06:230
149960,0migration/09415-21sh12:46:430
149960,0migration/031791-21sh12:24:240
149960,0migration/023419-21sh12:20:120
149960,0migration/011457-21kthreadcore11:16:190
8305050,0irq/26-0000:00:5201-21latency_hist07:31:002
8305050,0irq/26-0000:00:1513-21crond07:51:002
35150,0ktimersoftd/30-21swapper/310:33:013
339950,0migration/39603-21cpuspeed_turbos08:41:123
339950,0migration/38056-21munin-node10:16:223
339950,0migration/37372-21kthreadcore09:21:183
339950,0migration/330065-21taskset08:06:323
339950,0migration/329886-21aten_r1power_cu10:51:123
339950,0migration/325437-21latency11:41:193
339950,0migration/32497-21kthreadcore07:26:193
339950,0migration/320784-21kthreadcore08:46:183
339950,0migration/318948-21munin-node09:06:203
339950,0migration/316006-21kthreadcore09:26:183
339950,0migration/314847-21munin-node09:46:143
339950,0migration/31240-21kthreadcore12:06:193
329950,0watchdog/37617-21ls07:51:203
329950,0watchdog/314041-21sh09:45:483
329950,0watchdog/313825-21munin-node10:41:163
329950,0watchdog/30-21swapper/311:36:123
329950,0watchdog/30-21swapper/311:26:003
29815050,0irq/29-eth0-tx-9033-21ssh11:31:532
29815050,0irq/29-eth0-tx-26532-21awk10:11:162
29815050,0irq/29-eth0-tx-26259-21munin-node12:41:142
29815050,0irq/29-eth0-tx-2476-21perl10:16:142
29815050,0irq/29-eth0-tx-23257-21cat10:06:242
29815050,0irq/29-eth0-tx-2242-21kthreadcore12:06:192
29815050,0irq/29-eth0-tx-1933-21diskmemload09:21:030
29815050,0irq/29-eth0-tx-1661-40yum-updatesd-he09:18:060
29815050,0irq/29-eth0-tx-0-21swapper/212:30:022
29815050,0irq/29-eth0-tx-0-21swapper/209:26:432
29815050,0irq/29-eth0-tx-0-21swapper/209:24:232
29815050,0irq/29-eth0-tx-0-21swapper/008:48:110
29805050,0irq/28-eth0-rx-7016-21uptime12:26:263
29805050,0irq/28-eth0-rx-6314-21runrttasks11:53:253
29805050,0irq/28-eth0-rx-504-21yum12:41:283
29805050,0irq/28-eth0-rx-29927-21runrttasks12:05:313
29805050,0irq/28-eth0-rx-22674-40yum-updatesd-he12:18:073
29805050,0irq/28-eth0-rx-15311-21sensors12:31:233
29805050,0irq/28-eth0-rx-0-21swapper/312:36:183
29805050,0irq/28-eth0-rx-0-21swapper/312:22:363
29805050,0irq/28-eth0-rx-0-21swapper/311:11:183
29805050,0irq/28-eth0-rx-0-21swapper/311:06:173
29805050,0irq/28-eth0-rx-0-21swapper/310:56:143
29805050,0irq/28-eth0-rx-0-21swapper/310:36:183
29805050,0irq/28-eth0-rx-0-21swapper/310:22:443
29805050,0irq/28-eth0-rx-0-21swapper/310:08:013
29805050,0irq/28-eth0-rx-0-21swapper/309:51:523
29805050,0irq/28-eth0-rx-0-21swapper/309:31:173
29805050,0irq/28-eth0-rx-0-21swapper/308:01:123
259950,0migration/23009-21kthreadcore09:56:182
259950,0migration/228451-21kthreadcore07:21:182
259950,0migration/228338-21munin-node11:46:132
259950,0migration/226019-21kthreadcore09:51:182
259950,0migration/224983-21sh11:24:212
259950,0migration/224011-21kthreadcore10:46:202
259950,0migration/215932-21sh12:32:072
259950,0migration/211979-21munin-node09:01:202
249950,0watchdog/24304-21df_abs10:36:122
229849950,0cyclictest0-21swapper/212:19:182
229849950,0cyclictest0-21swapper/210:53:132
229839955,0cyclictest5811-21irqcore11:51:171
229839955,0cyclictest0-21swapper/111:41:401
229839954,0cyclictest0-21swapper/112:12:441
229839954,0cyclictest0-21swapper/112:12:441
229839950,0cyclictest0-21swapper/112:47:531
19150,0ktimersoftd/10-21swapper/109:51:001
19150,0ktimersoftd/10-21swapper/109:41:191
149950,0migration/09228-21kthreadcore10:56:180
149950,0migration/07353-21kthreadcore07:31:180
149950,0migration/06384-21fschecks_time08:16:140
149950,0migration/0501-21kthreadcore09:36:190
149950,0migration/03389-21kthreadcore09:56:180
149950,0migration/032367-21ntp_offset12:41:210
149950,0migration/030631-21cpuspeed_turbos07:26:130
149950,0migration/030169-21kthreadcore11:46:190
149950,0migration/029962-21taskset12:05:360
149950,0migration/028038-21kthreadcore11:06:190
149950,0migration/027136-21taskset09:15:500
149950,0migration/02694-21gltestperf07:51:150
149950,0migration/02538-21kthreadcore08:56:190
149950,0migration/023439-21cpuspeed_turbos09:51:120
149950,0migration/021761-21kthreadcore07:41:180
149950,0migration/021650-21kthreadcore10:26:160
149950,0migration/020711-21kthreadcore10:06:170
149950,0migration/020649-21kthreadcore11:21:200
149950,0migration/019576-21munin-node11:41:120
149950,0migration/017967-21kthreadcore11:56:200
149950,0migration/017589-21sh12:36:040
149950,0migration/017561-21sh11:36:270
149950,0migration/014980-21kthreadcore07:36:170
149950,0migration/013210-21sh09:43:460
149950,0migration/011962-21kthreadcore12:31:190
149950,0migration/010501-21sh10:21:120
8305040,0irq/26-0000:00:23474-21crond08:51:012
339940,0migration/326932-21taskset09:13:273
339940,0migration/326779-21taskset08:28:483
339940,0migration/324988-21irqcore08:51:173
339940,0migration/315093-21kthreadcore11:56:193
339940,0migration/31390-21taskset08:31:443
329940,0watchdog/30-21swapper/308:36:123
329940,0watchdog/30-21swapper/308:21:243
329940,0watchdog/30-21swapper/308:11:203
329940,0watchdog/30-21swapper/307:31:193
329940,0watchdog/30-21swapper/307:21:113
29815040,0irq/29-eth0-tx-6744-21munin-node12:11:202
29815040,0irq/29-eth0-tx-6744-21munin-node12:11:202
29815040,0irq/29-eth0-tx-31827-21cut09:36:182
29815040,0irq/29-eth0-tx-19507-21munin-node11:41:132
29815040,0irq/29-eth0-tx-18959-21munin-node10:26:122
29815040,0irq/29-eth0-tx-14888-21munin-node11:01:142
29815040,0irq/29-eth0-tx-12727-21ssh09:42:342
29815040,0irq/29-eth0-tx-0-21swapper/212:01:122
29815040,0irq/29-eth0-tx-0-21swapper/211:51:152
29815040,0irq/29-eth0-tx-0-21swapper/211:16:462
29815040,0irq/29-eth0-tx-0-21swapper/211:11:052
29815040,0irq/29-eth0-tx-0-21swapper/211:06:222
29815040,0irq/29-eth0-tx-0-21swapper/210:31:112
29815040,0irq/29-eth0-tx-0-21swapper/210:21:062
29815040,0irq/29-eth0-tx-0-21swapper/209:31:082
29815040,0irq/29-eth0-tx-0-21swapper/008:33:080
29815040,0irq/29-eth0-tx-0-21swapper/008:21:220
29805040,0irq/28-eth0-rx-11377-21kthreadcore10:01:183
29805040,0irq/28-eth0-rx-0-21swapper/312:46:173
29805040,0irq/28-eth0-rx-0-21swapper/312:11:063
29805040,0irq/28-eth0-rx-0-21swapper/312:11:063
29805040,0irq/28-eth0-rx-0-21swapper/311:46:073
29805040,0irq/28-eth0-rx-0-21swapper/310:49:293
29805040,0irq/28-eth0-rx-0-21swapper/310:11:593
29805040,0irq/28-eth0-rx-0-21swapper/309:58:283
29805040,0irq/28-eth0-rx-0-21swapper/309:16:133
29805040,0irq/28-eth0-rx-0-21swapper/307:41:183
259940,0migration/29156-21kthreadcore08:16:192
259940,0migration/27186-21hddtemp_smartct10:56:142
259940,0migration/24591-21kthreadcore12:46:192
259940,0migration/230484-21kthreadcore09:16:192
259940,0migration/22935-21kthreadcore08:11:192
259940,0migration/226578-21fschecks_time11:26:142
259940,0migration/226227-21kthreadcore12:21:202
259940,0migration/22328-21kthreadcore08:56:192
259940,0migration/220421-21kthreadcore08:46:182
259940,0migration/219322-21kthreadcore08:01:172
259940,0migration/218504-21fschecks_time12:36:142
259940,0migration/212664-21sh10:41:112
259940,0migration/210977-21kthreadcore07:56:172
259940,0migration/210804-21kthreadcore10:01:182
249940,0watchdog/22094-21stty08:36:122
249940,0watchdog/218571-21kthreadcore11:56:202
249940,0watchdog/210871-21aten2.4-expect11:36:122
249940,0watchdog/20-21swapper/209:11:122
249940,0watchdog/20-21swapper/208:41:162
229849943,0cyclictest3571-21lldpd07:37:102
229849943,0cyclictest3571-21lldpd07:30:102
229849943,0cyclictest20888-21awk07:41:162
229849943,0cyclictest15594-21awk09:46:172
229849943,0cyclictest14159-21awk09:06:152
229839944,0cyclictest0-21swapper/112:28:021
229839944,0cyclictest0-21swapper/111:38:121
229839944,0cyclictest0-21swapper/108:34:321
229839943,0cyclictest9716-21awk11:16:171
229839943,0cyclictest3571-21lldpd12:41:451
229839943,0cyclictest3571-21lldpd12:33:141
229839943,0cyclictest3571-21lldpd11:12:131
229839943,0cyclictest3571-21lldpd07:46:401
229839943,0cyclictest3524-21snmpd12:19:521
229839943,0cyclictest3524-21snmpd10:36:511
229839943,0cyclictest3524-21snmpd08:38:201
229839943,0cyclictest3524-21snmpd08:08:051
229839943,0cyclictest3524-21snmpd08:02:201
229839943,0cyclictest3524-21snmpd07:27:191
229839943,0cyclictest349-21awk09:56:161
229839943,0cyclictest3250-21irqbalance10:21:071
229839943,0cyclictest3250-21irqbalance10:06:571
229839943,0cyclictest3250-21irqbalance09:11:271
229839943,0cyclictest28425-21awk09:16:161
229839943,0cyclictest26510-21awk10:11:161
229839943,0cyclictest19480-21sadc07:41:001
229839943,0cyclictest14331-21awk11:56:181
229839943,0cyclictest10218-21awk07:56:161
229829944,0cyclictest0-21swapper/011:11:310
229829944,0cyclictest0-21swapper/010:04:590
229829943,0cyclictest5584-21awk11:51:160
229829943,0cyclictest3571-21lldpd09:01:120
229829943,0cyclictest3571-21lldpd08:51:420
229829943,0cyclictest2799-21awk10:16:160
229829943,0cyclictest26563-21awk10:11:160
229829943,0cyclictest22448-21awk10:46:180
229829943,0cyclictest15992-21awk11:01:160
229829940,0cyclictest0-21swapper/009:28:250
229829940,0cyclictest0-21swapper/007:56:120
19140,0ktimersoftd/10-21swapper/109:37:431
179940,0migration/17526-21irqcore10:56:171
179940,0migration/129322-21taskset12:03:501
179940,0migration/128669-21idleruntime10:31:161
179940,0migration/125045-21kthreadcore07:21:171
179940,0migration/124997-21kthreadcore09:51:181
179940,0migration/124706-21munin-node08:51:161
179940,0migration/123421-21kthreadcore07:41:181
179940,0migration/123275-21kthreadcore08:26:181
179940,0migration/122089-21kthreadcore11:21:201
179940,0migration/114629-21kthreadcore10:41:171
179940,0migration/111661-21kthreadcore10:01:181
179940,0migration/11105-21kthreadcore12:06:191
179940,0migration/110848-21idleruntime-cro09:26:011
169940,0watchdog/18771-21kthreadcore09:01:161
169940,0watchdog/17618-21sort07:51:201
169940,0watchdog/14267-21needreboot08:11:201
169940,0watchdog/129287-21cut12:21:201
169940,0watchdog/125767-21rm10:26:361
169940,0watchdog/123531-21munin-node11:06:201
169940,0watchdog/119043-21smartctl08:21:241
169940,0watchdog/110479-21iostat08:41:161
169940,0watchdog/10-21swapper/110:51:041
169940,0watchdog/10-21swapper/110:46:081
149940,0migration/028253-21kthreadcore07:21:180
149940,0migration/023832-21kthreadcore08:26:180
149940,0migration/016753-21kthreadcore09:46:180
149940,0migration/014445-21sh12:14:110
149940,0migration/014445-21sh12:14:110
329930,0watchdog/30-21swapper/308:16:523
329930,0watchdog/30-21swapper/307:46:043
29815030,0irq/29-eth0-tx-0-21swapper/008:06:120
29805030,0irq/28-eth0-rx-0-21swapper/309:01:163
29805030,0irq/28-eth0-rx-0-21swapper/308:56:133
29805030,0irq/28-eth0-rx-0-21swapper/307:56:113
249930,0watchdog/20-21swapper/207:51:202
229849932,0cyclictest3571-21lldpd08:26:112
229849932,0cyclictest28358-21awk08:31:152
229849932,0cyclictest24554-21awk08:06:162
229849930,0cyclictest13663-21perl08:21:142
229839932,0cyclictest3524-21snmpd12:38:371
229839932,0cyclictest3524-21snmpd10:16:061
229839932,0cyclictest3250-21irqbalance09:06:171
229839932,0cyclictest32063-21awk08:56:171
229839932,0cyclictest3083-21grep11:31:141
229839930,0cyclictest0-21swapper/111:26:221
229829933,0cyclictest28115-21awk07:46:160
229829933,0cyclictest0-21swapper/008:41:130
229829933,0cyclictest0-21swapper/008:36:130
229829932,0cyclictest6613-21kthreadcore10:36:170
229829932,0cyclictest26463-21grep11:26:140
229829932,0cyclictest17196-21gltestperf08:01:130
229829932,0cyclictest0-21swapper/009:06:110
179930,0migration/17427-21kthreadcore08:16:181
169930,0watchdog/121722-21sh11:01:481
169930,0watchdog/10-21swapper/111:46:121
169930,0watchdog/10-21swapper/109:26:081
169930,0watchdog/10-21swapper/108:49:481
169930,0watchdog/10-21swapper/107:31:191
149930,0migration/029813-21sh10:51:030
149930,0migration/020221-21sh10:44:000
229829921,0cyclictest2182-21telnet11:31:120
229829921,0cyclictest19903-21cat09:31:010
229829920,0cyclictest32553-21latency_hist12:26:020
229829920,0cyclictest0-21swapper/010:31:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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