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2026-06-20 - 22:46
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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 all highest latencies:
System rackbslot7.osadl.org (updated Sat Jun 20, 2026 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21982991132,64cyclictest21317-21apt-get08:33:531
219789911359,45cyclictest9216-21apt-get09:18:590
21987999977,16cyclictest18134-21/usr/sbin/munin09:34:152
21987999977,16cyclictest18134-21/usr/sbin/munin09:34:152
21978999980,14cyclictest21970-21cyclictest12:28:420
21982999757,34cyclictest13203-21/usr/sbin/munin11:14:161
2198299974,9cyclictest0-21swapper/110:38:571
216552966,18sleep20-21swapper/206:56:342
2198299945,84cyclictest0-21swapper/111:08:571
2198299945,84cyclictest0-21swapper/111:08:571
21978999460,23cyclictest24779-21apt-get08:43:570
2198799933,66cyclictest16449-21apt-get11:18:552
21982999246,39cyclictest0-21swapper/112:04:061
2198299915,78cyclictest21986-21latency_hist06:58:451
21978999167,16cyclictest32212-21latency_hist07:28:450
21978999167,16cyclictest32212-21latency_hist07:28:450
21978999157,28cyclictest0-21swapper/006:58:450
2198299905,76cyclictest0-21swapper/108:48:541
2198299905,73cyclictest0-21swapper/109:18:591
21987998969,13cyclictest352-21runrttasks07:09:072
2198299895,79cyclictest0-21swapper/108:03:541
2198299893,40cyclictest4749-21ssh10:04:221
2198299884,76cyclictest0-21swapper/106:58:531
2198299884,76cyclictest0-21swapper/106:58:531
2198299883,41cyclictest25105-21/usr/sbin/munin11:34:121
2198299883,41cyclictest25105-21/usr/sbin/munin11:34:121
21978998861,16cyclictest13655-21apt-get12:09:350
21978998861,16cyclictest13655-21apt-get12:09:350
21978998856,23cyclictest0-21swapper/011:29:580
21978998855,25cyclictest3648-21ssh10:03:550
2198299875,8cyclictest0-21swapper/107:48:591
21982998746,34cyclictest0-21swapper/109:08:411
21982998746,34cyclictest0-21swapper/109:08:411
21982998741,38cyclictest0-21swapper/110:13:441
2198299873,8cyclictest0-21swapper/112:09:351
2198299873,8cyclictest0-21swapper/112:09:351
2198299873,71cyclictest0-21swapper/111:28:581
2198299873,40cyclictest19421-21ssh12:18:511
2198299873,40cyclictest19421-21ssh12:18:511
21978998766,12cyclictest24565-21apt-get10:38:570
21978998730,28cyclictest20486-21ssh11:24:490
21987998664,15cyclictest1435-21apt-key07:33:452
2198299865,72cyclictest0-21swapper/107:58:571
2198299864,9cyclictest0-21swapper/110:58:521
2198299864,7cyclictest0-21swapper/110:13:531
21982998645,33cyclictest0-21swapper/111:20:121
21982998638,41cyclictest12179-21sh09:23:521
21982998638,41cyclictest12179-21sh09:23:521
2198299863,75cyclictest0-21swapper/107:28:581
2198299863,42cyclictest8378-21taskset07:53:571
2198299863,38cyclictest3388-21cstates09:08:581
21978998647,29cyclictest21572-21apt-get10:33:560
21982998556,25cyclictest21970-21cyclictest11:51:341
2198299853,41cyclictest30747-21/usr/sbin/munin10:49:151
2198299853,39cyclictest30603-21timerandwakeup08:59:171
2198299853,39cyclictest30603-21timerandwakeup08:59:171
2198299853,37cyclictest9161-21sh11:06:361
2198299853,37cyclictest352-21runrttasks11:43:551
2198299852,41cyclictest27659-21ssh09:49:091
2198299852,41cyclictest27659-21ssh09:49:091
2198299852,38cyclictest6217-21find09:13:531
2198299852,38cyclictest6217-21find09:13:531
21978998559,19cyclictest24712-21latency_hist08:43:450
21978998559,19cyclictest24712-21latency_hist08:43:450
21978998538,40cyclictest87-21kswapd011:48:560
21978998537,40cyclictest0-21swapper/012:03:560
21978998536,38cyclictest23046-21taskset08:38:450
21987998470,10cyclictest21970-21cyclictest08:58:442
2198799844,60cyclictest27766-21apt-get10:43:592
2198299845,71cyclictest0-21swapper/108:23:551
2198299844,8cyclictest0-21swapper/107:38:531
2198299844,75cyclictest0-21swapper/110:18:561
2198299844,13cyclictest22388-21apt-get12:23:531
2198299843,40cyclictest30843-21fschecks_count07:24:051
2198299843,40cyclictest30843-21fschecks_count07:24:051
2198299843,40cyclictest24151-21ssh09:43:551
2198299843,40cyclictest23151-21/usr/sbin/munin08:38:521
2198299843,40cyclictest23151-21/usr/sbin/munin08:38:521
2198299843,38cyclictest17460-21sshd11:57:551
2198299843,37cyclictest15955-21ssh10:24:051
2198299843,32cyclictest25575-21sendmail-msp07:08:411
21978998465,10cyclictest26412-21apt-get08:48:570
21978998462,11cyclictest6522-21apt-get07:48:590
2197899843,62cyclictest16449-21apt-get11:18:570
21987998357,19cyclictest544-21cron11:48:412
21982998363,14cyclictest24239-21sh10:38:401
2198299833,40cyclictest19224-21ssh11:23:541
2198299833,38cyclictest28427-21fschecks_time11:39:051
2198299833,38cyclictest23855-21runrttasks09:43:421
2198299833,38cyclictest2082-21sh10:00:161
2198299833,37cyclictest29393-21ssh08:58:411
2198299833,31cyclictest16427-21/usr/sbin/munin12:14:131
2198299832,35cyclictest1664-21taskset07:33:531
21978998361,10cyclictest30766-21apt-get10:48:540
21987998264,14cyclictest22367-21kworker/u18:0+events_unbound08:48:412
2198299824,9cyclictest0-21swapper/107:13:551
2198299823,39cyclictest24788-21taskset08:43:561
2198299822,39cyclictest13665-21/usr/sbin/munin08:09:081
2198299822,39cyclictest13665-21/usr/sbin/munin08:09:081
2198299822,33cyclictest20312-21taskset10:31:021
21978998253,21cyclictest10253-21apt-get11:08:520
21978998253,21cyclictest10253-21apt-get11:08:520
21978998252,20cyclictest12596-21apt-get10:18:520
21978998248,21cyclictest18154-21apt-get09:33:510
21978998248,21cyclictest18154-21apt-get09:33:510
21978998233,24cyclictest6287-21ssh11:56:090
21978998232,40cyclictest29041-21apt-get07:18:550
21978998232,39cyclictest15898-21apt-get11:18:410
21978998228,44cyclictest9164-21ssh10:13:190
21987998163,11cyclictest277-21dbus-daemon12:08:422
21987998159,16cyclictest0-21swapper/209:24:142
21987998159,16cyclictest0-21swapper/209:24:142
21987998155,19cyclictest15457-21latency_hist10:23:442
2198299815,69cyclictest0-21swapper/111:58:531
2198299813,40cyclictest15179-21/usr/sbin/munin09:29:201
2198299813,34cyclictest5163-21grep07:44:041
2198299813,34cyclictest16144-21modprobe08:18:411
2198299813,34cyclictest16144-21modprobe08:18:411
2198299813,33cyclictest26721-21grep07:09:181
2198299813,33cyclictest21099-21sort08:33:431
2198299813,32cyclictest29208-21/usr/sbin/munin07:19:031
21978998152,19cyclictest14817-21apt-get08:13:590
21978998152,19cyclictest14817-21apt-get08:13:590
21978998150,21cyclictest0-21swapper/008:59:180
21978998150,21cyclictest0-21swapper/008:59:180
21978998131,40cyclictest26678-21rm09:48:230
21978998131,25cyclictest27766-21apt-get10:44:430
21987998063,9cyclictest0-21swapper/211:09:202
21987998063,9cyclictest0-21swapper/211:09:202
21987998058,13cyclictest0-21swapper/208:38:442
2198299804,28cyclictest17381-21unixbench_singl08:19:171
2198299803,34cyclictest18161-21taskset09:33:511
2198299803,34cyclictest18161-21taskset09:33:511
2198299803,31cyclictest27726-21sh10:43:491
2198299802,31cyclictest1478-21ssh10:54:011
21978998057,18cyclictest27551-21kernelversion09:49:070
21978998057,18cyclictest27551-21kernelversion09:49:070
21978998056,16cyclictest28974-21latency_hist07:18:450
21978998049,24cyclictest0-21swapper/008:03:540
21978998034,38cyclictest28773-21ps11:39:150
21978998022,27cyclictest0-21swapper/011:48:440
21987997962,11cyclictest300-21rs:main2
21987997962,11cyclictest300-21rs:main2
2198299793,35cyclictest32060-21runrttasks09:56:401
21978997960,10cyclictest22154-21apt-get06:58:530
21978997960,10cyclictest22154-21apt-get06:58:530
21978997955,17cyclictest30142-21ssh09:53:550
21978997945,23cyclictest25128-21apt-get11:33:500
21978997945,23cyclictest25128-21apt-get11:33:500
21978997934,36cyclictest8077-21grep11:59:090
21978997933,39cyclictest6248-21ssh11:01:480
21978997931,39cyclictest9868-21rm11:08:360
21978997929,43cyclictest8710-21ssh09:18:130
21978997929,43cyclictest8710-21ssh09:18:130
21987997855,17cyclictest7299-21sh10:09:152
21987997852,12cyclictest0-21swapper/207:23:442
21978997857,15cyclictest25646-21latency_hist07:08:440
21978997855,17cyclictest21970-21cyclictest10:33:410
21978997841,23cyclictest25830-21apt-get07:08:570
21978997828,40cyclictest15784-21df_inode10:24:010
21978997828,24cyclictest17303-21ssh09:32:110
21987997754,13cyclictest0-21swapper/208:33:442
21987997717,25cyclictest28390-21unixbench_singl07:14:192
21978997755,13cyclictest12182-21apt-get09:23:530
21978997755,13cyclictest12182-21apt-get09:23:530
21978997755,10cyclictest0-21swapper/008:33:450
21978997751,16cyclictest32686-21apt-get09:03:540
21978997751,16cyclictest32686-21apt-get09:03:540
21978997746,21cyclictest18028-21apt-get08:23:580
21978997744,27cyclictest0-21swapper/007:58:570
21978997744,22cyclictest21142-21apt-get09:38:520
21978997729,22cyclictest22004-21ssh12:23:310
21978997729,22cyclictest22004-21ssh12:23:310
21987997656,14cyclictest8256-21mailstats11:59:152
21987997653,14cyclictest13814-21ntp_kernel_pll_11:14:092
21987997653,12cyclictest0-21swapper/208:18:442
21987997653,12cyclictest0-21swapper/208:18:442
21987997617,20cyclictest0-21swapper/209:06:482
21987997617,20cyclictest0-21swapper/209:06:482
21987997554,10cyclictest0-21swapper/210:29:142
21987997552,13cyclictest0-21swapper/211:29:042
21987997552,13cyclictest0-21swapper/208:43:452
21987997552,13cyclictest0-21swapper/208:43:452
21987997552,12cyclictest0-21swapper/207:43:442
21987997551,19cyclictest25255-21kworker/u17:1-nfsiod09:54:112
21987997551,13cyclictest0-21swapper/210:54:142
21987997547,18cyclictest15174-21sh09:28:542
21978997548,21cyclictest0-21swapper/010:13:530
21987997458,9cyclictest0-21swapper/209:14:052
21987997458,9cyclictest0-21swapper/209:14:052
21987997457,11cyclictest297-21systemd-logind12:24:152
21987997456,12cyclictest297-21systemd-logind08:03:432
21987997455,8cyclictest0-21swapper/209:44:092
21987997453,11cyclictest0-21swapper/207:35:232
21987997452,15cyclictest21970-21cyclictest11:49:182
21987997449,17cyclictest0-21swapper/209:03:442
21987997449,17cyclictest0-21swapper/209:03:442
21978997443,22cyclictest9841-21latency_hist07:58:440
21978997443,20cyclictest649-21apt-get09:58:530
21978997436,28cyclictest16800-21/usr/sbin/munin08:19:060
21978997432,35cyclictest16534-21cpuspeed12:13:560
21978997428,35cyclictest4250-21unixbench_multi09:09:180
21978997423,44cyclictest29495-21runrttasks08:58:430
21987997359,9cyclictest9212-21/usr/sbin/munin09:18:542
21987997353,10cyclictest0-21swapper/208:04:092
21987997351,12cyclictest0-21swapper/210:34:052
21987997350,14cyclictest0-21swapper/211:54:052
21987997350,13cyclictest0-21swapper/210:43:442
21987997254,10cyclictest0-21swapper/210:49:032
21987997252,8cyclictest0-21swapper/211:34:152
21987997252,8cyclictest0-21swapper/211:34:152
21987997249,13cyclictest0-21swapper/210:18:432
21987997248,13cyclictest0-21swapper/208:09:032
21987997248,13cyclictest0-21swapper/208:09:032
21978997236,26cyclictest2619-21/usr/sbin/munin07:35:360
21987997154,8cyclictest0-21swapper/211:24:052
21987997153,11cyclictest0-21swapper/207:24:192
21987997153,11cyclictest0-21swapper/207:24:192
21987997152,10cyclictest0-21swapper/212:14:012
21987997150,11cyclictest0-21swapper/212:19:132
21987997150,11cyclictest0-21swapper/212:19:132
21987997148,14cyclictest0-21swapper/212:10:022
21987997148,14cyclictest0-21swapper/212:10:022
21978997131,22cyclictest1488-21/usr/sbin/munin10:54:020
21987997053,8cyclictest0-21swapper/207:55:142
21987997051,9cyclictest0-21swapper/210:58:582
21987997050,9cyclictest0-21swapper/210:03:442
21987997050,13cyclictest0-21swapper/208:49:062
21987997050,10cyclictest0-21swapper/207:44:142
21987997045,18cyclictest297-21systemd-logind08:23:422
21978997045,19cyclictest0-21swapper/007:38:530
21978997036,25cyclictest32526-21tune2fs07:29:040
2122227026,28sleep30-21swapper/306:54:273
21987996952,8cyclictest0-21swapper/211:39:052
21987996949,12cyclictest0-21swapper/210:04:142
21987996944,12cyclictest0-21swapper/210:28:452
21978996934,25cyclictest6253-21tr07:48:410
21978996933,27cyclictest13769-21/usr/sbin/munin08:09:130
21978996933,27cyclictest13769-21/usr/sbin/munin08:09:130
2199299682,52cyclictest9813-21taskset09:19:123
21987996854,8cyclictest0-21swapper/207:03:482
21987996848,13cyclictest0-21swapper/207:49:202
21987996839,21cyclictest20822-21sh09:38:452
290512670,7sleep20-21swapper/209:51:352
290512670,7sleep20-21swapper/209:51:352
21987996750,8cyclictest0-21swapper/211:03:502
2199299663,49cyclictest25646-21chrt11:34:053
2199299663,49cyclictest25646-21chrt11:34:053
2199299662,51cyclictest9829-21chrt10:14:023
2199299662,51cyclictest13662-21chrt12:08:523
2199299662,51cyclictest13662-21chrt12:08:523
2199299662,49cyclictest21201-21taskset11:26:523
21987996649,7cyclictest0-21swapper/208:23:592
21987996648,8cyclictest0-21swapper/209:13:442
3492650,8sleep30-21swapper/307:29:123
2199299653,50cyclictest18308-21taskset11:22:013
2199299653,49cyclictest15763-21chrt11:18:203
2199299653,48cyclictest28070-21chrt10:44:443
2199299653,48cyclictest15219-21taskset09:28:573
2199299652,49cyclictest5047-21chrt10:59:153
2199299643,48cyclictest17546-21taskset08:21:013
2199299643,46cyclictest6106-21taskset10:08:103
2199299642,50cyclictest29726-21chrt08:58:573
2199299642,50cyclictest29726-21chrt08:58:573
2199299642,49cyclictest3775-21taskset10:58:143
2199299642,49cyclictest31170-21chrt10:49:063
2199299642,49cyclictest1561-21taskset09:59:183
2199299642,48cyclictest24011-21taskset11:31:223
2199299633,47cyclictest8815-21taskset10:12:203
2199299633,47cyclictest24011-21taskset08:40:173
2199299633,47cyclictest24011-21taskset08:40:173
2199299633,47cyclictest21162-21chrt09:38:553
2199299633,47cyclictest19208-21chrt10:29:113
2199299633,46cyclictest13081-21taskset12:08:403
2199299632,48cyclictest31404-21chrt07:24:183
2199299632,48cyclictest31404-21chrt07:24:183
2199299632,48cyclictest21535-21taskset10:33:493
2199299632,48cyclictest17040-21taskset10:25:173
2199299632,48cyclictest11822-21taskset11:10:383
2199299632,48cyclictest11822-21taskset11:10:383
2199299632,47cyclictest16472-21chrt12:13:543
2199299623,46cyclictest3286-21chrt07:38:573
2199299623,46cyclictest29278-21taskset08:57:433
2199299623,46cyclictest21518-21taskset12:22:093
2199299623,46cyclictest21518-21taskset12:22:093
2199299623,45cyclictest7854-21taskset09:15:483
2199299623,45cyclictest7854-21taskset09:15:483
2199299623,45cyclictest2307-21taskset11:49:143
2199299623,45cyclictest0-21swapper/310:38:573
2199299623,45cyclictest0-21swapper/307:48:593
2199299622,48cyclictest22158-21chrt06:58:543
2199299622,48cyclictest22158-21chrt06:58:543
2199299622,48cyclictest0-21swapper/312:23:533
2199299622,47cyclictest7799-21chrt11:59:033
2199299622,47cyclictest28070-21taskset11:38:523
2199299622,46cyclictest368-21taskset09:04:003
2199299622,46cyclictest368-21taskset09:04:003
2199299622,46cyclictest0-21swapper/308:33:533
2199299622,45cyclictest8991-21chrt07:55:133
2199299622,44cyclictest0-21swapper/308:48:573
2199299613,46cyclictest9332-21chrt11:07:053
2199299613,46cyclictest13738-21chrt08:09:103
2199299613,46cyclictest13738-21chrt08:09:103
2199299613,45cyclictest25259-21chrt09:44:223
2199299613,45cyclictest15796-21chrt08:14:213
2199299613,45cyclictest15796-21chrt08:14:213
2199299612,47cyclictest29247-21taskset09:52:093
2199299612,47cyclictest29247-21taskset09:52:093
2199299612,47cyclictest24064-21chrt07:03:523
2199299603,45cyclictest10275-21taskset07:59:063
2199299603,44cyclictest5771-21chrt11:54:413
2199299603,43cyclictest0-21swapper/310:18:563
2199299602,45cyclictest30078-21chrt07:19:573
2199299602,45cyclictest12014-21chrt08:04:083
2199299593,44cyclictest5723-21chrt09:13:123
2199299593,44cyclictest19814-21chrt09:35:513
2199299593,44cyclictest19814-21chrt09:35:513
2199299592,45cyclictest26493-21chrt07:09:153
2199299592,45cyclictest19669-21chrt08:28:553
2199299583,43cyclictest5883-21chrt07:44:283
2199299583,43cyclictest18176-21chrt08:24:013
2199299583,43cyclictest0-21swapper/309:23:533
2199299583,43cyclictest0-21swapper/309:23:533
2199299582,44cyclictest26030-21chrt08:47:433
2199299582,43cyclictest32226-21taskset11:44:323
2199299575,40cyclictest0-21swapper/309:53:533
2199299573,43cyclictest28738-21chrt07:18:273
2199299573,42cyclictest1634-21chrt07:33:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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