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2026-05-28 - 17:43
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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 Thu May 28, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
675428580,0sleep20-21swapper/207:23:072
659724435,0sleep10-21swapper/107:21:181
648423026,0sleep00-21swapper/007:20:010
660422723,0sleep30-21swapper/307:21:243
6893992020,0cyclictest83050irq/26-0000:00:09:35:162
68939960,0cyclictest0-21swapper/210:43:572
68919965,0cyclictest6065-21kworker/0:010:01:520
68919965,0cyclictest6065-21kworker/0:007:34:080
339960,0migration/39051-21rt-features11:44:103
339960,0migration/331501-21sh12:36:003
339960,0migration/328047-21munin-node08:19:133
329960,0watchdog/321411-21sh10:39:043
29805060,0irq/28-eth0-rx-453-21kthreadcore09:09:063
29805060,0irq/28-eth0-rx-24589-21fschecks_time10:04:023
29805060,0irq/28-eth0-rx-19439-21memory10:54:073
149960,0migration/011630-21fschecks_count10:34:020
68939955,0cyclictest18064-21diskmemload09:40:432
68939955,0cyclictest0-21swapper/208:29:182
68939954,0cyclictest3524-21snmpd11:56:162
68939953,0cyclictest3524-21snmpd11:44:162
68939950,0cyclictest0-21swapper/210:34:392
68929950,0cyclictest0-21swapper/112:50:431
68919955,0cyclictest955-21kworker/0:112:48:510
68919955,0cyclictest955-21kworker/0:112:43:590
68919955,0cyclictest955-21kworker/0:112:39:050
68919955,0cyclictest955-21kworker/0:112:34:030
68919955,0cyclictest955-21kworker/0:112:28:590
68919955,0cyclictest955-21kworker/0:112:23:510
68919955,0cyclictest955-21kworker/0:112:18:570
68919955,0cyclictest955-21kworker/0:112:14:210
68919955,0cyclictest955-21kworker/0:112:09:230
68919955,0cyclictest955-21kworker/0:112:03:510
68919955,0cyclictest955-21kworker/0:111:59:270
68919955,0cyclictest955-21kworker/0:111:53:530
68919955,0cyclictest955-21kworker/0:111:49:050
68919955,0cyclictest955-21kworker/0:111:43:500
68919955,0cyclictest955-21kworker/0:111:34:080
68919955,0cyclictest955-21kworker/0:111:28:560
68919955,0cyclictest955-21kworker/0:111:23:520
68919955,0cyclictest955-21kworker/0:111:18:540
68919955,0cyclictest955-21kworker/0:111:13:540
68919955,0cyclictest955-21kworker/0:111:09:040
68919955,0cyclictest955-21kworker/0:110:59:020
68919955,0cyclictest955-21kworker/0:110:53:560
68919955,0cyclictest955-21kworker/0:110:48:500
68919955,0cyclictest955-21kworker/0:110:44:080
68919955,0cyclictest955-21kworker/0:110:38:560
68919955,0cyclictest955-21kworker/0:110:28:560
68919955,0cyclictest955-21kworker/0:110:23:520
68919955,0cyclictest955-21kworker/0:110:18:540
68919955,0cyclictest955-21kworker/0:110:13:540
68919955,0cyclictest6065-21kworker/0:010:08:580
68919955,0cyclictest6065-21kworker/0:010:03:520
68919955,0cyclictest6065-21kworker/0:009:54:100
68919955,0cyclictest6065-21kworker/0:009:49:080
68919955,0cyclictest6065-21kworker/0:009:43:500
68919955,0cyclictest6065-21kworker/0:009:39:080
68919955,0cyclictest6065-21kworker/0:009:34:020
68919955,0cyclictest6065-21kworker/0:009:29:020
68919955,0cyclictest0-21swapper/007:44:050
339950,0migration/39673-21kthreadcore11:09:063
339950,0migration/39598-21fschecks_time10:14:023
339950,0migration/37166-21cpu12:24:003
339950,0migration/37081-21sh10:09:573
339950,0migration/36663-21munin-node09:54:013
339950,0migration/35266-21kthreadcore12:39:083
339950,0migration/3516-21munin-node08:49:023
339950,0migration/332628-21kthreadcore09:49:053
339950,0migration/330922-21aten_r1power_po11:04:003
339950,0migration/330232-21munin-node08:24:043
339950,0migration/326284-21gltestperf08:44:023
339950,0migration/32448-21munin-node10:29:003
339950,0migration/324229-21latency_hist11:18:493
339950,0migration/319302-21kthreadcore10:19:053
339950,0migration/318213-21cpuspeed_turbos07:54:013
339950,0migration/315007-21munin-node12:09:043
339950,0migration/311034-21proc_pri12:04:103
329950,0watchdog/331823-21sh12:19:043
329950,0watchdog/329512-21munin-node10:44:043
329950,0watchdog/318093-21kthreadcore08:59:083
329950,0watchdog/316056-21grep11:14:003
329950,0watchdog/315554-21python11:29:123
329950,0watchdog/311577-21diskmemload10:49:203
329950,0watchdog/311469-21fschecks_time07:48:593
329950,0watchdog/30-21swapper/310:34:083
329950,0watchdog/30-21swapper/310:03:203
29815050,0irq/29-eth0-tx-5053-21unixbench_multi11:04:142
29815050,0irq/29-eth0-tx-26443-21munin-node11:39:102
29815050,0irq/29-eth0-tx-26146-21munin-node10:24:042
29815050,0irq/29-eth0-tx-24228-21kthreadcore10:39:052
29815050,0irq/29-eth0-tx-23101-21ssh11:16:012
29815050,0irq/29-eth0-tx-14076-21ssh09:56:442
29815050,0irq/29-eth0-tx-0-21swapper/211:08:502
29815050,0irq/29-eth0-tx-0-21swapper/210:59:142
29815050,0irq/29-eth0-tx-0-21swapper/209:49:082
29815050,0irq/29-eth0-tx-0-21swapper/009:16:360
29815050,0irq/29-eth0-tx-0-21swapper/008:24:110
29815050,0irq/29-eth0-tx-0-21swapper/008:19:030
29805050,0irq/28-eth0-rx-4831-21if_eth109:34:053
29805050,0irq/28-eth0-rx-28098-21ssh09:44:253
29805050,0irq/28-eth0-rx-24216-21switchtime11:34:143
29805050,0irq/28-eth0-rx-23071-21kthreadcore12:49:083
29805050,0irq/28-eth0-rx-20161-21ssh09:41:483
29805050,0irq/28-eth0-rx-0-21swapper/312:33:273
29805050,0irq/28-eth0-rx-0-21swapper/312:01:043
29805050,0irq/28-eth0-rx-0-21swapper/311:58:293
29805050,0irq/28-eth0-rx-0-21swapper/311:49:063
29805050,0irq/28-eth0-rx-0-21swapper/311:42:463
29805050,0irq/28-eth0-rx-0-21swapper/310:59:063
29805050,0irq/28-eth0-rx-0-21swapper/307:34:073
259950,0migration/29510-21fschecks_time10:14:022
259950,0migration/28455-21sh11:27:312
259950,0migration/27054-21kthreadcore12:04:062
259950,0migration/24875-21aten_r1power_po10:48:592
259950,0migration/24803-21timerandwakeup12:19:142
259950,0migration/229595-21sh12:16:242
259950,0migration/225783-21munin-node08:44:012
259950,0migration/221861-21sh12:13:492
259950,0migration/220424-21sh10:54:542
259950,0migration/219307-21kthreadcore09:59:072
259950,0migration/216787-21munin-node07:49:062
259950,0migration/210186-21sh10:31:562
249950,0watchdog/218704-21iostat_ios10:19:042
19150,0ktimersoftd/10-21swapper/111:49:331
179950,0migration/15748-21sh09:52:431
179950,0migration/14812-21munin-node11:04:121
179950,0migration/13824-21sh10:47:011
179950,0migration/13013-21kthreadcore11:24:071
179950,0migration/129921-21taskset11:02:111
179950,0migration/129417-21sh12:15:551
179950,0migration/128174-21idleruntime09:29:041
179950,0migration/12412-21sendmail_mailtr11:59:091
179950,0migration/122522-21kthreadcore08:39:061
179950,0migration/119654-21kthreadcore07:54:061
179950,0migration/118618-21kthreadcore08:59:081
179950,0migration/113396-21gltestperf09:39:011
179950,0migration/111929-21sh09:38:181
169950,0watchdog/110891-21kthreadcore12:44:041
149950,0migration/05933-21needreboot08:04:070
149950,0migration/030827-21aten2.4-expect11:03:590
149950,0migration/029816-21kthreadcore11:39:060
149950,0migration/028775-21kthreadcore07:59:060
149950,0migration/024856-21taskset07:58:090
149950,0migration/020089-21kthreadcore09:24:040
149950,0migration/016976-21kthreadcore07:29:060
149950,0migration/012241-21munin-node09:19:030
149950,0migration/01011-21kthreadcore09:09:060
8305040,0irq/26-0000:00:0-21swapper/212:43:502
8305040,0irq/26-0000:00:0-21swapper/208:13:492
68939944,0cyclictest0-21swapper/211:33:552
68939943,0cyclictest8214-21awk07:24:042
68939943,0cyclictest3571-21lldpd09:19:222
68939943,0cyclictest3524-21snmpd09:29:292
68939943,0cyclictest3524-21snmpd08:37:592
68939943,0cyclictest3524-21snmpd08:21:432
68939943,0cyclictest3524-21snmpd07:31:272
68939943,0cyclictest3281-21sadc07:43:482
68939943,0cyclictest1250-21awk08:49:052
68939943,0cyclictest1029-21awk10:09:032
68939942,0cyclictest2423-21sensors11:59:092
68929944,0cyclictest0-21swapper/111:46:331
68929943,0cyclictest8308-21awk08:09:041
68929943,0cyclictest3571-21lldpd11:29:241
68929943,0cyclictest3571-21lldpd11:17:241
68929943,0cyclictest3571-21lldpd11:10:241
68929943,0cyclictest3571-21lldpd10:36:241
68929943,0cyclictest3571-21lldpd10:15:541
68929943,0cyclictest3571-21lldpd09:47:221
68929943,0cyclictest28606-21sadc08:23:491
68929943,0cyclictest21272-21sadc07:33:481
68929943,0cyclictest14568-21awk10:54:031
68929940,0cyclictest0-21swapper/112:33:511
68919944,0cyclictest6065-21kworker/0:008:39:020
68919943,0cyclictest3250-21irqbalance07:51:150
68919943,0cyclictest29759-21awk07:39:030
339940,0migration/39940-21sendmail_mailqu08:29:093
339940,0migration/38281-21if_eth1.307:24:043
339940,0migration/36183-21kthreadcore07:44:053
339940,0migration/35166-21irqcore09:14:053
339940,0migration/3358-21latency_hist11:23:493
339940,0migration/328461-21sh12:14:133
339940,0migration/320304-21kthreadcore09:24:043
339940,0migration/315087-21kthreadcore09:19:053
329940,0watchdog/30-21swapper/309:30:003
29815040,0irq/29-eth0-tx-9217-21munin-node11:29:032
29815040,0irq/29-eth0-tx-23733-21ssh10:03:512
29815040,0irq/29-eth0-tx-14418-21munin-node08:14:010
29815040,0irq/29-eth0-tx-0-21swapper/212:38:532
29815040,0irq/29-eth0-tx-0-21swapper/212:34:022
29815040,0irq/29-eth0-tx-0-21swapper/212:29:022
29815040,0irq/29-eth0-tx-0-21swapper/212:23:532
29815040,0irq/29-eth0-tx-0-21swapper/211:19:492
29815040,0irq/29-eth0-tx-0-21swapper/209:45:012
29815040,0irq/29-eth0-tx-0-21swapper/209:25:462
29815040,0irq/29-eth0-tx-0-21swapper/008:49:000
29815040,0irq/29-eth0-tx-0-21swapper/008:34:060
29815040,0irq/29-eth0-tx-0-21swapper/007:24:090
29805040,0irq/28-eth0-rx-4800-21kthreadcore08:04:063
29805040,0irq/28-eth0-rx-29699-21kthreadcore10:24:063
29805040,0irq/28-eth0-rx-10727-21kthreadcore08:09:073
29805040,0irq/28-eth0-rx-0-21swapper/312:46:123
29805040,0irq/28-eth0-rx-0-21swapper/307:59:063
29805040,0irq/28-eth0-rx-0-21swapper/307:29:003
259940,0migration/29091-21kthreadcore08:09:062
259940,0migration/231433-21timerandwakeup07:59:132
259940,0migration/230751-21kthreadcore08:24:052
259940,0migration/22571-21kthreadcore08:04:052
259940,0migration/221134-21kthreadcore07:54:062
259940,0migration/219515-21kthreadcore12:49:072
249940,0watchdog/227684-21memory09:04:082
249940,0watchdog/211482-21aten_r1power_po11:49:002
179940,0migration/17915-21kthreadcore09:14:061
179940,0migration/17643-21kthreadcore08:29:061
179940,0migration/16993-21sh10:09:421
179940,0migration/132235-21munin-node10:24:071
179940,0migration/130988-21kthreadcore09:09:061
179940,0migration/129256-21kthreadcore11:39:061
179940,0migration/128861-21aten2.4-expect08:23:591
179940,0migration/128842-21aten_r1power_vo07:39:001
179940,0migration/125666-21irqcore11:19:051
179940,0migration/120954-21hwlatdetect11:54:031
179940,0migration/119492-21kthreadcore11:34:071
179940,0migration/119095-21kthreadcore09:59:071
169940,0watchdog/16302-21cut10:49:041
169940,0watchdog/13552-21lldpd12:26:241
169940,0watchdog/126464-21munin-node08:44:041
169940,0watchdog/125979-21ssh09:26:441
169940,0watchdog/125292-21ssh10:22:161
169940,0watchdog/118064-21diskmemload12:39:081
169940,0watchdog/113869-21diskstats12:09:001
169940,0watchdog/10-21swapper/108:49:081
169940,0watchdog/10-21swapper/107:48:591
149940,0migration/030406-21kthreadcore08:44:060
149940,0migration/012262-21kthreadcore08:09:070
149940,0migration/010711-21taskset08:33:390
68939932,0cyclictest5012-21awk09:14:042
68939932,0cyclictest3524-21snmpd07:43:582
68939932,0cyclictest30165-21awk09:09:042
68939932,0cyclictest13382-21tr08:54:072
68929932,0cyclictest9792-21sensors07:44:101
68929932,0cyclictest9106-21grep10:29:141
68929932,0cyclictest3571-21lldpd09:53:521
68929932,0cyclictest3524-21snmpd08:06:241
68929932,0cyclictest3524-21snmpd07:36:191
68929932,0cyclictest31329-21sensors07:59:101
68929932,0cyclictest20877-21awk10:39:021
68929932,0cyclictest19425-21kthreadcore12:29:061
68929932,0cyclictest17558-21grep09:19:131
68929932,0cyclictest15523-21awk08:14:041
68929932,0cyclictest12670-21cut07:24:061
68929932,0cyclictest12071-21awk08:34:051
68919933,0cyclictest6065-21kworker/0:009:03:540
68919933,0cyclictest6065-21kworker/0:008:53:520
68919932,0cyclictest15817-21awk08:59:060
329930,0watchdog/30-21swapper/309:04:003
329930,0watchdog/30-21swapper/308:55:043
329930,0watchdog/30-21swapper/308:15:003
329930,0watchdog/30-21swapper/307:38:513
29805030,0irq/28-eth0-rx-0-21swapper/308:39:073
29805030,0irq/28-eth0-rx-0-21swapper/308:34:003
259930,0migration/224749-21runrttasks08:39:352
259930,0migration/221956-21fschecks_count07:34:032
249930,0watchdog/20-21swapper/208:59:082
169930,0watchdog/10-21swapper/112:19:001
169930,0watchdog/10-21swapper/112:03:521
169930,0watchdog/10-21swapper/110:04:001
68929921,0cyclictest0-21swapper/108:53:491
169920,0watchdog/10-21swapper/109:03:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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