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2026-08-04 - 14:50
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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
Characteristics of the highest latencies:
System rackeslot2.osadl.org (updated Tue Aug 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
232622521060,2sleep30-21swapper/321:25:013
235102821050,1sleep00-21swapper/021:40:490
230834121040,2sleep20-21swapper/221:10:492
25836612990,2sleep30-21swapper/300:15:513
24146992710,1sleep02414697-21ssh22:24:260
2155223992818,2cyclictest0-21swapper/123:40:021
2155222992724,2cyclictest0-21swapper/019:25:010
2155224992522,1cyclictest0-21swapper/222:30:022
2155223992421,2cyclictest2540856-21apt-key23:50:011
2155222992421,2cyclictest2377940-21wc22:00:000
25140322230,2sleep20-21swapper/223:30:492
24461222230,2sleep30-21swapper/322:45:493
2155223992320,2cyclictest2593768-21sh00:25:021
2155222992320,2cyclictest1-21systemd23:30:010
2155222992315,1cyclictest1157598rtkit-daemon20:06:570
2155222992312,1cyclictest69250irq/121-eno100:33:120
2155224992220,1cyclictest0-21swapper/220:20:012
2155224992219,1cyclictest0-21swapper/222:20:012
2155224992219,1cyclictest0-21swapper/221:25:012
2155223992219,2cyclictest2326498-21grep21:25:031
2155222992219,2cyclictest2348506-21grep21:40:010
2155222992216,5cyclictest2322773-21kthreadcore21:20:500
3240591211,10phc2sys0-21swapper/300:30:263
2155224992118,1cyclictest0-21swapper/221:40:002
2155224992118,1cyclictest0-21swapper/219:25:012
2155223992118,2cyclictest2556571-21/usr/sbin/munin00:00:021
2155223992118,2cyclictest1-21systemd23:05:011
2155222992119,1cyclictest2169612-21cron19:20:010
2155222992117,1cyclictest191rcu_preempt22:00:130
2155222992116,3cyclictest0-21swapper/023:55:030
2155222992112,8cyclictest2455521-21kthreadcore22:50:520
2155222992112,4cyclictest69250irq/121-eno121:54:000
3240591200,2phc2sys0-21swapper/319:40:523
2155224992017,1cyclictest0-21swapper/223:55:152
2155224992017,1cyclictest0-21swapper/223:15:012
2155224992017,1cyclictest0-21swapper/222:35:522
2155223992017,2cyclictest0-21swapper/121:35:001
2155223992016,3cyclictest2218541-21sh20:00:001
2155222992016,2cyclictest0-21swapper/000:20:030
2155222992016,2cyclictest0-21swapper/000:05:030
2155222992013,6cyclictest2554808-21runrttasks23:56:030
2155222992010,5cyclictest0-21swapper/023:20:020
3240591190,3phc2sys0-21swapper/322:55:483
3240591190,2phc2sys0-21swapper/322:40:543
2155224991917,1cyclictest0-21swapper/222:05:022
2155224991917,1cyclictest0-21swapper/200:30:022
2155224991916,1cyclictest0-21swapper/223:20:552
2155224991916,1cyclictest0-21swapper/219:10:532
215522399198,2cyclictest69250irq/121-eno100:35:391
215522399192,4cyclictest1309-21mta-sts-daemon22:42:561
2155223991916,2cyclictest676-21mta-sts-daemon21:10:451
2155223991916,2cyclictest664-21dbus-daemon19:25:011
2155223991916,2cyclictest2242957-21apt-key20:20:011
2155222991917,1cyclictest2616041-21apt-key00:40:010
2155222991916,2cyclictest2392894-21systemd22:10:020
2155222991916,2cyclictest2237036-21systemd20:15:020
2155222991912,3cyclictest69250irq/121-eno100:25:540
2155222991911,2cyclictest171ktimers/023:30:530
2155222991910,8cyclictest0-21swapper/021:15:450
3240591181,1phc2sys0-21swapper/320:13:533
2155224991815,1cyclictest0-21swapper/223:50:022
2155224991815,1cyclictest0-21swapper/222:15:022
2155224991815,1cyclictest0-21swapper/220:10:482
2155224991815,1cyclictest0-21swapper/200:15:552
2155224991815,1cyclictest0-21swapper/200:05:502
2155223991815,2cyclictest2267373-21grep20:40:011
2155223991815,2cyclictest1309-21mta-sts-daemon21:03:121
215522299188,6cyclictest2296946-21ptp4l-jitter21:00:510
2155222991815,2cyclictest759-1atopacctd21:06:150
2155222991815,2cyclictest2279568-21systemd20:50:010
2155222991815,2cyclictest0-21swapper/022:30:040
2155222991815,2cyclictest0-21swapper/019:15:030
2155222991814,2cyclictest0-21swapper/020:00:010
2155222991813,1cyclictest69250irq/121-eno100:08:220
2155222991812,5cyclictest1307-21mta-sts-daemon23:21:270
2155222991811,2cyclictest171ktimers/022:14:180
2155222991810,7cyclictest0-21swapper/020:20:000
2155222991810,3cyclictest759-1atopacctd22:32:070
3240591171,2phc2sys0-21swapper/323:59:373
3240591170,2phc2sys0-21swapper/300:37:453
2155224991714,1cyclictest0-21swapper/223:05:552
2155224991714,1cyclictest0-21swapper/222:40:472
2155224991714,1cyclictest0-21swapper/221:35:012
2155224991714,1cyclictest0-21swapper/200:40:012
2155224991714,1cyclictest0-21swapper/200:35:012
2155224991714,1cyclictest0-21swapper/200:10:542
215522399177,3cyclictest491rcuog/219:35:441
215522399176,3cyclictest0-21swapper/122:45:361
2155223991714,2cyclictest2529410-21kthreadcore23:40:471
2155223991714,2cyclictest2509324-21pmu-power23:25:531
2155223991714,2cyclictest2499498-21kthreadcore23:20:481
2155223991714,2cyclictest2401307-21cut22:15:451
2155223991714,2cyclictest2386757-21if_enp1s0.822:05:481
2155223991714,2cyclictest2361358-21mailstats21:45:551
2155223991714,2cyclictest2155217-21cyclictest22:50:561
215522399171,3cyclictest2279580-21latency_hist20:50:011
2155223991713,2cyclictest2341965-21cstates21:35:441
215522299179,5cyclictest2400567-21apt-get22:15:260
215522299176,7cyclictest2528295-21cat23:40:460
215522299176,6cyclictest0-21swapper/022:55:290
215522299173,9cyclictest2333407-21sshd21:29:150
2155222991715,1cyclictest2219518-21cut20:00:460
2155222991714,2cyclictest2487362-21mailstats23:10:530
2155222991714,2cyclictest2183128-21fschecks_time19:30:440
2155222991714,2cyclictest0-21swapper/020:55:030
2155222991714,2cyclictest0-21swapper/019:50:020
2155222991712,1cyclictest69250irq/121-eno121:45:220
2155222991712,1cyclictest69250irq/121-eno121:10:530
2155222991710,6cyclictest0-21swapper/023:35:480
215522299170,5cyclictest2249926-21cat20:25:430
3240591161,3phc2sys0-21swapper/319:24:163
3240591160,4phc2sys0-21swapper/300:00:263
2155224991613,1cyclictest0-21swapper/223:25:552
2155224991613,1cyclictest0-21swapper/223:15:302
2155224991613,1cyclictest0-21swapper/221:55:492
2155224991613,1cyclictest0-21swapper/200:00:582
2155224991612,2cyclictest0-21swapper/200:25:022
2155223991614,1cyclictest2206570-21/usr/sbin/munin19:50:021
215522399161,3cyclictest2224666-21munin-plugin-st20:05:001
2155223991613,2cyclictest714-21gdbus21:10:021
2155223991613,2cyclictest2602394-21if_enp1s000:30:461
2155223991613,2cyclictest2580034-21fschecks_count00:15:461
2155223991613,2cyclictest2569584-21tr00:05:521
2155223991613,2cyclictest2547819-21sshd23:53:151
2155223991613,2cyclictest2416164-21grep22:25:471
2155223991613,2cyclictest2393859-21fschecks_count22:10:451
2155223991613,2cyclictest2376130-21sendmail_mailqu21:55:541
2155223991613,2cyclictest1306-21mta-sts-daemon21:25:481
2155223991612,3cyclictest2560567-21kthreadcore00:00:501
2155223991612,3cyclictest2424976-21kthreadcore22:30:491
215522299168,7cyclictest0-21swapper/022:45:300
215522299166,6cyclictest2592371-21diskmemload00:21:140
215522299163,7cyclictest2481972-21munin-run23:10:020
215522299163,6cyclictest2212768-21latency_hist19:55:030
2155222991613,2cyclictest2538616-21kthreadcore23:45:520
2155222991613,2cyclictest2433297-21kthreadcore22:35:490
2155222991613,2cyclictest2287240-21kthreadcore20:55:490
2155222991613,2cyclictest2269036-21kthreadcore20:40:480
2155222991613,2cyclictest2244771-21tr20:20:490
2155222991612,2cyclictest0-21swapper/019:40:020
2155222991610,5cyclictest2468808-21kthreadcore23:00:500
3240591151,3phc2sys0-21swapper/323:25:273
3240591150,2phc2sys0-21swapper/323:04:223
3240591150,2phc2sys0-21swapper/300:20:403
3240591150,1phc2sys0-21swapper/322:21:503
2155224991513,1cyclictest0-21swapper/222:45:032
2155224991513,1cyclictest0-21swapper/221:25:502
2155224991512,1cyclictest0-21swapper/223:39:252
2155224991512,1cyclictest0-21swapper/222:56:322
2155224991512,1cyclictest0-21swapper/222:50:502
2155224991512,1cyclictest0-21swapper/222:30:502
2155224991512,1cyclictest0-21swapper/221:50:462
2155224991512,1cyclictest0-21swapper/221:18:162
2155224991512,1cyclictest0-21swapper/221:00:482
2155224991512,1cyclictest0-21swapper/221:00:012
2155224991512,1cyclictest0-21swapper/220:50:012
2155224991512,1cyclictest0-21swapper/220:35:012
2155224991512,1cyclictest0-21swapper/220:00:012
2155224991512,1cyclictest0-21swapper/219:30:452
2155224991512,1cyclictest0-21swapper/219:20:012
215522399158,6cyclictest1300-21mta-sts-daemon19:42:471
2155223991513,1cyclictest1307-21mta-sts-daemon20:10:251
2155223991512,2cyclictest759-1atopacctd00:12:081
2155223991512,2cyclictest664-21dbus-daemon23:10:011
2155223991512,2cyclictest2514693-21kthreadcore23:30:501
2155223991512,2cyclictest2490273-21fschecks_count23:15:451
2155223991512,2cyclictest2409318-21irqrtprio22:20:461
2155223991512,2cyclictest2350291-21kthreadcore21:40:491
2155223991512,2cyclictest2282645-21kthreadcore20:50:511
2155223991512,2cyclictest2181384-21mailstats19:25:521
2155223991512,2cyclictest2055948-21GUsbEventThread19:30:161
2155223991512,2cyclictest1306-21mta-sts-daemon00:25:071
2155223991512,2cyclictest0-21swapper/121:55:011
2155223991511,3cyclictest2273449-21turbostat20:45:011
2155223991510,4cyclictest2245634-21kthreadcore20:20:501
215522399150,4cyclictest2483613-21cut23:10:481
215522399150,3cyclictest2255247-21perf20:30:001
215522299155,6cyclictest1053-21snmpd21:34:150
2155222991512,2cyclictest2572689-21fschecks_time00:10:440
2155222991512,2cyclictest2439214-21kernelversion22:40:480
2155222991512,2cyclictest2264449-21kthreadcore20:35:480
2155222991512,2cyclictest2258398-21kthreadcore20:30:490
2155222991512,2cyclictest2195990-21kthreadcore19:40:500
3240591141,3phc2sys0-21swapper/323:41:423
3240591141,2phc2sys0-21swapper/323:35:533
3240591141,2phc2sys0-21swapper/300:28:033
3240591141,2phc2sys0-21swapper/300:09:553
3240591140,3phc2sys0-21swapper/320:45:273
3240591140,3phc2sys0-21swapper/320:40:263
3240591140,2phc2sys0-21swapper/300:11:063
3240591140,1phc2sys0-21swapper/319:30:553
23111292140,2sleep30-21swapper/321:14:563
215522499149,2cyclictest0-21swapper/219:25:262
2155224991412,1cyclictest0-21swapper/223:52:162
2155224991412,1cyclictest0-21swapper/221:40:502
2155224991411,1cyclictest0-21swapper/223:41:102
2155224991411,1cyclictest0-21swapper/223:05:002
2155224991411,1cyclictest0-21swapper/221:50:012
2155224991411,1cyclictest0-21swapper/220:00:492
2155224991411,1cyclictest0-21swapper/219:46:052
2155224991411,1cyclictest0-21swapper/219:35:482
215522399148,5cyclictest2287425-21kthreadcore20:55:481
215522399148,5cyclictest2156565-21irqcore19:10:471
215522399147,4cyclictest1307-21mta-sts-daemon20:07:181
215522399147,2cyclictest69250irq/121-eno119:50:451
2155223991411,2cyclictest2431199-21gltestperf22:35:441
2155223991411,2cyclictest2379812-21kernelversion22:00:481
2155223991411,2cyclictest2311826-21aten2.4-expect21:15:381
2155223991411,2cyclictest2256338-21tail20:30:451
2155223991411,2cyclictest1309-21mta-sts-daemon22:55:291
2155222991410,2cyclictest2182315-21latency_hist19:30:020
3240591136,2phc2sys0-21swapper/323:10:013
3240591131,3phc2sys0-21swapper/321:33:043
3240591131,2phc2sys0-21swapper/322:27:233
3240591131,2phc2sys0-21swapper/321:42:303
3240591130,2phc2sys0-21swapper/323:33:243
3240591130,2phc2sys0-21swapper/321:17:263
3240591130,2phc2sys0-21swapper/320:39:143
3240591130,1phc2sys0-21swapper/322:06:143
2155224991310,1cyclictest0-21swapper/222:05:502
2155224991310,1cyclictest0-21swapper/221:05:482
2155224991310,1cyclictest0-21swapper/220:40:472
2155224991310,1cyclictest0-21swapper/220:20:532
2155224991310,1cyclictest0-21swapper/220:05:482
2155224991310,1cyclictest0-21swapper/219:50:452
2155224991310,1cyclictest0-21swapper/219:40:512
2155224991310,1cyclictest0-21swapper/219:10:012
2155222991310,2cyclictest2155343-21systemd19:10:020
3240591120,2phc2sys0-21swapper/323:22:353
3240591120,1phc2sys0-21swapper/323:49:313
3240591120,1phc2sys0-21swapper/322:51:333
3240591120,1phc2sys0-21swapper/322:17:213
3240591120,1phc2sys0-21swapper/322:14:383
3240591120,1phc2sys0-21swapper/320:21:313
215522499129,1cyclictest0-21swapper/220:25:472
2155224991210,1cyclictest0-21swapper/220:50:502
2155224991210,1cyclictest0-21swapper/220:35:482
215522399129,2cyclictest0-21swapper/119:15:031
3240591116,2phc2sys0-21swapper/321:53:373
3240591113,1phc2sys0-21swapper/319:27:453
3240591112,2phc2sys0-21swapper/319:50:453
3240591111,3phc2sys0-21swapper/321:00:253
3240591111,2phc2sys0-21swapper/323:53:123
3240591111,2phc2sys0-21swapper/321:27:553
3240591110,2phc2sys0-21swapper/321:57:093
3240591110,2phc2sys0-21swapper/319:35:273
3240591110,2phc2sys0-21swapper/319:19:543
3240591110,1phc2sys0-21swapper/322:37:093
3240591110,1phc2sys0-21swapper/322:32:403
3240591110,1phc2sys0-21swapper/320:50:443
3240591110,1phc2sys0-21swapper/320:08:413
3240591110,1phc2sys0-21swapper/319:55:103
3240591110,1phc2sys0-21swapper/319:47:333
215522499119,1cyclictest0-21swapper/222:20:122
215522399115,4cyclictest664-21dbus-daemon19:10:031
3240591102,2phc2sys0-21swapper/320:32:573
3240591101,2phc2sys0-21swapper/323:19:583
3240591101,2phc2sys0-21swapper/321:45:463
3240591101,2phc2sys0-21swapper/321:35:483
3240591100,2phc2sys0-21swapper/321:00:023
3240591100,1phc2sys0-21swapper/320:26:273
3240591100,1phc2sys0-21swapper/320:18:343
324059191,2phc2sys0-21swapper/323:11:403
324059190,2phc2sys0-21swapper/322:00:453
324059190,2phc2sys0-21swapper/321:05:513
324059190,2phc2sys0-21swapper/320:00:273
324059190,2phc2sys0-21swapper/319:13:303
324059180,2phc2sys0-21swapper/319:05:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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