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2026-08-13 - 03:46
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Thu Aug 13, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911820,5ptp4l401ktimersoftd/321:20:113
3200521540,3sleep2398599cyclictest01:37:002
3260821430,6sleep0397499cyclictest02:44:470
3260821430,6sleep0397499cyclictest02:44:470
77232690,3sleep10-21swapper/121:29:561
184702680,2sleep10-21swapper/101:24:221
36132644,10sleep00-21swapper/021:21:190
199812640,2sleep10-21swapper/101:25:021
324842630,2sleep30-21swapper/301:05:013
95532610,2sleep20-21swapper/222:40:022
61612600,2sleep10-21swapper/122:34:561
35892584,42sleep10-21swapper/121:21:001
3974995711,11cyclictest3880-21mailstats23:30:060
139162570,2sleep00-21swapper/001:51:230
397499539,12cyclictest29528-21diskmemload01:28:480
227632530,1sleep00-21swapper/000:55:020
227632530,1sleep00-21swapper/000:55:020
397499528,11cyclictest29528-21diskmemload23:40:480
3974995112,10cyclictest29528-21diskmemload00:39:010
397499509,17cyclictest14994-21df_inode00:15:000
397499509,14cyclictest19311-21snmp_o5powerctl23:00:050
35332505,32sleep20-21swapper/221:20:162
399199490,4cyclictest17829-21taskset00:17:223
3974994910,16cyclictest6928-21snmp_o5powerctl02:50:120
399199481,4cyclictest13673-21/usr/sbin/munin02:25:013
398599480,19cyclictest29528-21diskmemload02:48:542
398599480,19cyclictest29528-21diskmemload02:48:542
398599480,12cyclictest8626-21ssh00:40:132
397499489,11cyclictest4444-21grep01:09:570
3974994810,9cyclictest17759-21snmp_o5powerctl01:55:090
398599470,19cyclictest5050-21sed22:30:102
397499479,13cyclictest22705-21apt-get23:09:550
3974994713,18cyclictest6349-21cat21:29:400
399199468,21cyclictest2476-21sh00:01:343
3974994610,8cyclictest9831-21snmp_o5powerctl22:40:070
288672460,2sleep00-21swapper/000:29:170
399199459,21cyclictest349-21sh02:44:483
399199459,21cyclictest349-21sh02:44:483
397499459,8cyclictest26714-21hddtemp_smartct22:09:560
3974994510,8cyclictest12902-21irqstats21:40:000
398599441,18cyclictest22593-21diskstats23:49:592
399199428,17cyclictest1055-21runrttasks01:36:033
397999423,6cyclictest0-21swapper/101:44:581
41412410,1sleep20-21swapper/200:35:332
399199413,31cyclictest9653-21apt-get21:34:503
399199411,4cyclictest24129-21/usr/sbin/munin01:29:563
399199402,32cyclictest12405-21apt-get23:39:563
399199401,32cyclictest21208-21apt-get01:59:573
399199401,23cyclictest0-21swapper/322:31:593
106891400,1ptp4l401ktimersoftd/300:27:413
399199393,28cyclictest23872-21apt-get22:04:523
399199392,29cyclictest14384-21apt-get21:44:523
399199391,3cyclictest2757-21taskset02:14:183
399199390,2cyclictest0-21swapper/323:33:423
3974993913,23cyclictest2702-21grep01:40:070
106891390,1ptp4l401ktimersoftd/301:41:193
397999382,6cyclictest0-21swapper/101:09:561
3974993825,7cyclictest6505-21apt-get01:44:580
106891380,1ptp4l401ktimersoftd/323:55:423
106891380,1ptp4l401ktimersoftd/302:34:103
106891380,1ptp4l401ktimersoftd/302:19:333
106891380,1ptp4l401ktimersoftd/301:55:013
106891380,1ptp4l401ktimersoftd/300:52:023
106891380,1ptp4l401ktimersoftd/300:48:273
106891380,0ptp4l401ktimersoftd/302:23:483
106891380,0ptp4l401ktimersoftd/300:10:293
399199373,28cyclictest0-21swapper/322:09:513
399199371,3cyclictest20464-21taskset23:47:193
399199370,3cyclictest21554-21ssh00:20:193
398599370,17cyclictest30241-21/usr/sbin/munin00:30:002
398599370,11cyclictest0-21swapper/200:08:482
397999373,7cyclictest9742-21apt-get00:09:561
3979993712,4cyclictest5174-21latency21:24:591
3974993724,8cyclictest7046-21apt-get00:39:560
3974993713,8cyclictest3622-21tr22:29:550
106891370,1ptp4l401ktimersoftd/323:52:193
106891370,1ptp4l401ktimersoftd/323:38:183
106891370,1ptp4l401ktimersoftd/323:25:303
106891370,1ptp4l401ktimersoftd/322:39:123
106891370,1ptp4l401ktimersoftd/302:52:043
106891370,1ptp4l401ktimersoftd/302:07:453
106891370,1ptp4l401ktimersoftd/301:47:363
106891370,1ptp4l401ktimersoftd/301:28:023
106891370,1ptp4l401ktimersoftd/301:24:283
106891370,1ptp4l401ktimersoftd/301:11:133
106891370,1ptp4l401ktimersoftd/300:40:413
106891370,1ptp4l401ktimersoftd/300:33:243
106891370,1ptp4l401ktimersoftd/300:05:463
106891370,0ptp4l401ktimersoftd/322:49:543
106891370,0ptp4l401ktimersoftd/301:52:043
106891370,0ptp4l401ktimersoftd/300:39:253
399199364,28cyclictest0-21swapper/323:14:533
399199364,28cyclictest0-21swapper/323:14:533
399199363,25cyclictest19137-21apt-get21:54:523
399199363,25cyclictest16751-21apt-get21:49:513
399199362,25cyclictest15608-21apt-get22:54:533
3991993614,19cyclictest8634-21ls21:30:073
398599360,17cyclictest29528-21diskmemload01:33:452
398599360,17cyclictest11069-21ssh02:21:442
397999362,9cyclictest8910-21sshd23:35:071
3979993612,4cyclictest18235-21acpi02:29:591
397499369,15cyclictest8603-21snmp_o5powerctl21:30:040
106891360,1ptp4l401ktimersoftd/302:34:523
106891360,1ptp4l401ktimersoftd/300:55:223
106891360,1ptp4l401ktimersoftd/300:55:223
399199352,28cyclictest0-21swapper/322:44:563
399199352,26cyclictest4236-21apt-get21:24:513
399199352,25cyclictest31208-21apt-get22:19:533
398599350,16cyclictest29528-21diskmemload01:51:332
398599350,12cyclictest29528-21diskmemload23:45:542
397999352,8cyclictest28099-21apt-get02:39:591
397999352,8cyclictest28099-21apt-get02:39:591
3979993511,4cyclictest17433-21cat01:55:061
3974993521,7cyclictest27272-21apt-get23:54:550
3974993515,16cyclictest27321-21cat23:19:430
3974993515,16cyclictest27321-21cat23:19:430
3974993510,8cyclictest25060-21users02:35:170
106891350,1ptp4l401ktimersoftd/302:40:443
106891350,1ptp4l401ktimersoftd/302:40:443
106891350,0ptp4l401ktimersoftd/301:17:163
399199347,23cyclictest21669-21cat21:59:553
3991993414,17cyclictest13058-21sed21:40:013
399199340,4cyclictest1055-21runrttasks23:04:373
398599341,12cyclictest25412-21ssh00:57:412
398599341,12cyclictest25412-21ssh00:57:412
398599341,11cyclictest9215-21/usr/sbin/munin01:15:062
3974993423,6cyclictest27460-21apt-get23:19:530
3974993410,9cyclictest18578-21diskstats02:30:020
3974993410,8cyclictest15683-21snmp_o5powerctl01:20:130
3991993313,17cyclictest30310-21sh01:02:433
399199330,3cyclictest28928-21timerandwakeup23:20:103
399199330,2cyclictest0-21swapper/323:10:013
398599331,16cyclictest24495-21/usr/sbin/munin00:25:082
398599331,14cyclictest29699-21ssh02:08:132
398599331,13cyclictest28130-21missed_timers01:00:052
398599331,13cyclictest12865-21chrt22:49:102
397999332,8cyclictest1145-21apt-get22:24:531
3979993318,8cyclictest29528-21diskmemload01:49:581
3974993321,7cyclictest9295-21apt-get01:14:570
399199320,28cyclictest10003-21timerwakeupswit22:40:103
398599320,17cyclictest5814-21ssh01:10:082
398599320,12cyclictest0-21swapper/200:12:472
397999323,8cyclictest22095-21apt-get00:54:571
397999323,8cyclictest22095-21apt-get00:54:571
397999321,12cyclictest21206-21snmpd23:28:541
3974993217,11cyclictest0-21swapper/000:59:560
3974993216,12cyclictest0-21swapper/000:49:550
399199316,21cyclictest2441-21basename22:25:043
398599311,18cyclictest923-21snmp_o5powerctl01:05:102
397499319,10cyclictest6989-21ssh02:18:070
3974993119,6cyclictest554-21apt-get02:45:000
3974993119,6cyclictest554-21apt-get02:45:000
3974993117,9cyclictest13632-21snmp_o5powerctl00:45:090
3974993115,12cyclictest0-21swapper/022:14:520
3974993115,12cyclictest0-21swapper/021:59:540
3974993113,14cyclictest22403-21latency_hist23:09:430
3974993112,16cyclictest9716-21ptp4l02:20:130
27842310,2sleep00-21swapper/001:07:430
399199301,23cyclictest28743-21tr22:14:543
398599301,9cyclictest17396-21df00:49:572
398599301,13cyclictest5664-21awk21:25:072
398599300,16cyclictest9095-21ssh02:53:172
398599300,13cyclictest25761-21sed02:04:472
398599300,12cyclictest0-21swapper/200:23:412
3974993013,7cyclictest6220-21ssh00:05:060
3974993013,14cyclictest1712-21ls00:34:440
399199291,24cyclictest20259-21/usr/sbin/munin23:05:003
398599291,17cyclictest7970-21snmp_o5powerctl01:45:132
3979992922,4cyclictest25-21ksoftirqd/102:22:361
397499297,19cyclictest994-21lldpd02:04:360
3974992913,13cyclictest815-21ssh02:10:550
57392280,2sleep10-21swapper/101:44:091
398599281,16cyclictest13849-21snmp_o5powerctl23:40:082
398599280,12cyclictest0-21swapper/223:29:462
398599280,12cyclictest0-21swapper/201:28:222
397499282,9cyclictest0-21swapper/000:02:020
3974992817,8cyclictest26005-21unixbench_singl01:30:140
3974992817,8cyclictest22410-21cpuspeed_turbos23:49:570
3974992817,8cyclictest19224-21cpuspeed_turbos21:54:540
3974992816,9cyclictest18830-21awk21:54:410
3974992816,9cyclictest13744-21fschecks_time02:25:020
3974992816,8cyclictest31597-21/usr/sbin/munin22:19:570
3974992815,9cyclictest17668-21apt22:59:420
3974992815,9cyclictest10502-21sed21:34:570
3974992813,12cyclictest0-21swapper/000:09:560
3974992812,13cyclictest596-21ssh23:27:190
398599271,8cyclictest4526-21memory02:15:072
398599270,12cyclictest0-21swapper/200:44:452
397999273,5cyclictest0-21swapper/122:59:531
3979992721,3cyclictest25-21ksoftirqd/122:22:321
3974992716,8cyclictest24504-21/usr/sbin/munin22:04:590
3974992716,8cyclictest1423-21/usr/sbin/munin22:24:550
3974992715,9cyclictest7858-21/usr/sbin/munin23:34:590
3974992715,9cyclictest6269-21fschecks_time22:34:570
3974992715,8cyclictest17787-21ssh23:45:000
3985992620,3cyclictest33-21ksoftirqd/223:14:522
3985992620,3cyclictest33-21ksoftirqd/223:14:522
3985992620,3cyclictest33-21ksoftirqd/200:18:472
3985992615,8cyclictest19225-21cpuspeed_turbos21:54:542
3985992614,8cyclictest27604-21grep22:10:072
398599260,11cyclictest0-21swapper/201:41:232
3979992620,3cyclictest25-21ksoftirqd/123:19:031
3979992620,3cyclictest25-21ksoftirqd/123:19:031
3979992619,3cyclictest25-21ksoftirqd/122:43:001
3974992616,7cyclictest10909-21/usr/sbin/munin22:44:580
3974992615,8cyclictest29524-21ssh01:35:020
3974992615,8cyclictest26631-21smartctl02:05:020
3974992615,8cyclictest20177-21/usr/sbin/munin00:20:010
3974992614,9cyclictest14559-21ls21:44:540
3974992614,9cyclictest13408-21expr22:49:560
398599251,9cyclictest20125-21users02:30:172
3985992519,3cyclictest33-21ksoftirqd/222:59:112
3985992518,4cyclictest33-21ksoftirqd/222:37:052
3979992519,3cyclictest25-21ksoftirqd/122:16:121
3979992519,3cyclictest20732-21grep21:55:091
3979992518,4cyclictest25-21ksoftirqd/101:33:421
3979992518,4cyclictest14672-21chrt23:40:561
3979992515,3cyclictest25-21ksoftirqd/122:57:031
398599241,9cyclictest31959-21irqstats02:10:072
398599240,9cyclictest20595-21df_inode23:04:562
397999244,13cyclictest14714-21ssh00:14:571
3979992417,4cyclictest25-21ksoftirqd/122:45:421
3979992417,4cyclictest25-21ksoftirqd/121:45:131
3979992417,4cyclictest25-21ksoftirqd/102:08:391
3985992318,3cyclictest33-21ksoftirqd/202:42:082
3985992318,3cyclictest33-21ksoftirqd/202:42:082
3985992317,3cyclictest33-21ksoftirqd/222:04:132
3985992317,3cyclictest33-21ksoftirqd/221:54:402
3985992317,3cyclictest33-21ksoftirqd/221:30:282
3985992316,4cyclictest33-21ksoftirqd/223:22:342
3985992316,4cyclictest33-21ksoftirqd/221:40:492
3985992314,6cyclictest29243-21if_err_enp1s0.122:14:582
3985992313,7cyclictest31120-21sh23:25:042
3985992312,8cyclictest23136-21/usr/sbin/munin02:34:592
3979992317,3cyclictest25-21ksoftirqd/123:56:091
3979992316,4cyclictest25-21ksoftirqd/121:53:081
3979992316,4cyclictest25-21ksoftirqd/121:36:061
3979992316,4cyclictest25-21ksoftirqd/100:27:201
3979992316,4cyclictest13811-21turbostat.cron01:19:451
3979992314,5cyclictest7963-21latency_hist02:19:461
3985992217,3cyclictest33-21ksoftirqd/221:46:052
3985992215,4cyclictest33-21ksoftirqd/223:11:462
3985992215,4cyclictest33-21ksoftirqd/222:20:512
3985992215,4cyclictest33-21ksoftirqd/221:35:112
3985992213,7cyclictest47150irq/102-ens3-Tx01:19:532
3985992212,7cyclictest3318-21sh00:02:582
3985992212,7cyclictest2280-21phc2sys-jitter22:25:022
3979992216,3cyclictest25-21ksoftirqd/123:10:521
3979992216,3cyclictest25-21ksoftirqd/122:01:481
3979992215,4cyclictest25-21ksoftirqd/122:30:581
3979992215,4cyclictest13260-21tail21:40:031
3979992214,5cyclictest7754-21grep00:40:031
397999221,3cyclictest0-21swapper/122:09:421
3979992213,5cyclictest20087-21head00:20:001
3985992114,4cyclictest9622-21sh23:35:442
3985992111,7cyclictest23986-21grep22:04:542
397999213,12cyclictest47050irq/101-ens3-Tx02:45:001
397999213,12cyclictest47050irq/101-ens3-Tx02:45:001
3979992116,3cyclictest0-21swapper/100:49:571
3979992115,4cyclictest32750-21gltestperf23:59:591
3979992114,4cyclictest25-21ksoftirqd/122:51:461
3979992114,4cyclictest25-21ksoftirqd/122:10:311
3979992114,4cyclictest25-21ksoftirqd/102:37:051
3979992113,5cyclictest30897-21mailstats00:30:041
3985992015,3cyclictest33-21ksoftirqd/202:26:102
3985992014,3cyclictest33-21ksoftirqd/222:52:012
3985992013,4cyclictest28380-21sh23:55:042
3985992013,4cyclictest16219-21sh01:54:542
3979992014,3cyclictest25-21ksoftirqd/102:10:331
3979992014,3cyclictest2002-21/usr/sbin/munin00:35:151
3979992013,4cyclictest8695-21sh02:52:361
3979992013,4cyclictest29528-21diskmemload00:05:091
3979992013,4cyclictest17999-21if_err_enp1s023:45:011
3979992013,4cyclictest14575-21phc2sys02:25:081
3979992013,4cyclictest1408-21latency_hist01:39:461
3979992013,4cyclictest12550-21fschecks_time00:44:591
3979992012,4cyclictest32121-21expr01:04:571
397999201,16cyclictest28093-21memory01:00:051
3979992011,5cyclictest21297-21cpuspeed_turbos01:59:581
3979991913,3cyclictest27383-21/usr/sbin/munin23:20:001
3979991913,3cyclictest24556-21sh23:50:531
3979991911,5cyclictest644-21dbus-daemon23:34:431
3979991812,3cyclictest20310-21basename23:04:531
3985991712,3cyclictest18187-21expr22:59:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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