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2026-08-24 - 15:06
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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 Mon Aug 24, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
752421770,4sleep11540299cyclictest02:12:541
1068911010,3ptp4l401ktimersoftd/321:26:373
106891740,7ptp4l27731-21kworker/3:102:43:033
136582710,2sleep30-21swapper/302:19:433
119132660,4sleep0101ktimersoftd/002:16:430
161342650,4sleep016130-21sed00:10:480
106891600,1ptp4l401ktimersoftd/323:46:123
106891600,1ptp4l401ktimersoftd/323:46:123
106891590,1ptp4l401ktimersoftd/301:30:583
106891590,1ptp4l401ktimersoftd/301:30:583
106891590,1ptp4l401ktimersoftd/300:22:453
323842570,2sleep20-21swapper/222:01:152
323842570,2sleep20-21swapper/222:01:152
106891550,1ptp4l401ktimersoftd/322:11:243
1539699533,12cyclictest4548-21cat01:36:180
150052534,38sleep10-21swapper/121:27:081
1539699526,17cyclictest31552-21grep00:26:050
1539699524,16cyclictest19058-21switchtime01:51:210
150582524,36sleep20-21swapper/221:27:502
1539699514,17cyclictest15376-21rm02:21:100
15396995121,23cyclictest15522-21apt-get01:16:030
1539699504,16cyclictest8551-21apt-get00:36:000
1539699495,9cyclictest12394-21uptime01:11:160
1539699494,11cyclictest8933-21diskmemload23:36:140
1539699485,8cyclictest21961-21/usr/sbin/munin00:16:060
1539699485,12cyclictest9626-21df_inode23:31:010
1539699484,14cyclictest28889-21ssh01:28:540
1539699484,10cyclictest723-21apt-get01:01:020
1539699474,8cyclictest6837-21apt-get02:46:060
1539699474,14cyclictest7859-21ssh02:13:280
1539699474,14cyclictest31963-21apt23:10:590
1539699474,11cyclictest8933-21diskmemload01:42:220
1539699472,16cyclictest3119-21nfs4_client02:41:130
1539699465,8cyclictest20696-21snmp_o5powerctl23:41:120
1539699464,8cyclictest32129-21/usr/sbin/munin01:31:180
1539699464,8cyclictest32129-21/usr/sbin/munin01:31:180
1539699464,16cyclictest8933-21diskmemload00:31:580
1539699464,14cyclictest31488-21ssh23:52:110
1539699464,14cyclictest31488-21ssh23:52:110
1539699464,10cyclictest8933-21diskmemload00:01:400
1539699463,8cyclictest28225-21apt-get00:56:010
1539699463,12cyclictest8933-21diskmemload01:58:280
1539699463,10cyclictest8933-21diskmemload00:41:080
1539699455,9cyclictest26095-21snmp_o5powerctl02:31:180
1539699455,11cyclictest28691-21snmp_o5powerctl02:01:150
1539699454,8cyclictest23319-21apt-get00:51:000
1539699454,10cyclictest8933-21diskmemload01:09:570
1539699453,13cyclictest15590-21ssh02:54:530
1539699445,17cyclictest20890-21/usr/sbin/munin02:26:140
1539699444,9cyclictest8069-21df_inode22:20:590
1539699444,9cyclictest30820-21ssh23:06:150
1539699444,17cyclictest8933-21diskmemload01:23:280
1539699444,17cyclictest8933-21diskmemload01:23:280
1539699444,16cyclictest8933-21diskmemload00:12:440
1539699443,8cyclictest32302-21apt-get02:06:020
1539699443,17cyclictest8933-21diskmemload02:57:050
1539699434,8cyclictest22512-21df22:51:000
1539699433,8cyclictest7136-21diskstats23:26:010
1539699433,16cyclictest8933-21diskmemload23:47:090
1539699433,16cyclictest8933-21diskmemload23:47:090
1539699433,16cyclictest8933-21diskmemload02:40:070
1539699424,9cyclictest2389-21users22:06:150
1539699424,9cyclictest20433-21if_enp1s022:46:030
1539699424,8cyclictest8933-21diskmemload00:46:120
1539699423,8cyclictest26211-21apt-get00:21:000
1539699423,7cyclictest8933-21diskmemload23:56:180
1539699423,16cyclictest2988-21/usr/sbin/munin22:11:140
1539699423,16cyclictest12255-21latency_hist22:30:460
146072422,21sleep013155-21/usr/sbin/munin21:26:140
1539699414,8cyclictest12811-21df_inode22:30:590
1539699412,9cyclictest8933-21diskmemload01:48:400
106891410,1ptp4l401ktimersoftd/301:55:423
31962400,2sleep20-21swapper/200:30:462
1539699403,9cyclictest19131-21df21:35:570
106891400,1ptp4l401ktimersoftd/302:53:393
106891390,1ptp4l401ktimersoftd/323:36:573
106891390,1ptp4l401ktimersoftd/323:33:093
106891390,1ptp4l401ktimersoftd/302:36:443
106891380,1ptp4l401ktimersoftd/323:44:203
106891380,1ptp4l401ktimersoftd/302:47:283
106891380,1ptp4l401ktimersoftd/302:35:263
106891380,1ptp4l401ktimersoftd/302:28:403
106891380,1ptp4l401ktimersoftd/302:11:163
106891380,1ptp4l401ktimersoftd/302:10:193
106891380,1ptp4l401ktimersoftd/301:47:483
106891380,1ptp4l401ktimersoftd/301:19:213
106891380,1ptp4l401ktimersoftd/300:14:573
106891380,1ptp4l401ktimersoftd/300:06:173
1540799377,9cyclictest0-21swapper/201:18:002
15407993712,3cyclictest26424-21expr00:21:012
15407993712,3cyclictest16770-21seq22:37:582
1539699373,8cyclictest16157-21ptp4l22:36:100
106891370,1ptp4l401ktimersoftd/323:50:593
106891370,1ptp4l401ktimersoftd/323:50:593
106891370,1ptp4l401ktimersoftd/321:31:003
106891370,1ptp4l401ktimersoftd/302:56:073
106891370,1ptp4l401ktimersoftd/302:21:363
106891370,1ptp4l401ktimersoftd/302:04:353
106891370,1ptp4l401ktimersoftd/301:58:503
106891370,1ptp4l401ktimersoftd/301:45:163
106891370,1ptp4l401ktimersoftd/301:28:203
106891370,1ptp4l401ktimersoftd/301:21:523
106891370,1ptp4l401ktimersoftd/301:21:523
106891370,1ptp4l401ktimersoftd/301:08:493
106891370,1ptp4l401ktimersoftd/300:26:193
106891370,1ptp4l401ktimersoftd/300:04:293
15407993620,13cyclictest33-21ksoftirqd/221:40:512
15407993612,3cyclictest5639-21expr22:16:002
15407993612,3cyclictest26846-21cut23:00:472
15407993612,3cyclictest16077-21cat21:30:562
106891360,1ptp4l401ktimersoftd/322:16:093
106891360,1ptp4l401ktimersoftd/300:57:513
106891360,1ptp4l401ktimersoftd/300:49:293
106891360,1ptp4l401ktimersoftd/300:35:373
106891360,0ptp4l401ktimersoftd/321:56:083
106891360,0ptp4l401ktimersoftd/321:46:013
15407993512,4cyclictest13303-21sh02:19:062
15407993510,5cyclictest28196-21sh02:34:202
15396993510,21cyclictest3078-21uname23:16:090
106891350,1ptp4l401ktimersoftd/321:41:093
106891350,1ptp4l401ktimersoftd/301:40:313
106891350,1ptp4l401ktimersoftd/300:45:303
106891350,1ptp4l401ktimersoftd/300:38:493
106891350,11ptp4l401ktimersoftd/301:15:283
106891350,0ptp4l401ktimersoftd/301:01:143
106891350,0ptp4l401ktimersoftd/300:00:123
1540799349,4cyclictest30708-21/usr/sbin/munin02:36:132
15407993413,4cyclictest22348-21sh00:49:512
15407993413,3cyclictest9060-21sh02:47:022
15407993412,4cyclictest26986-21cut21:51:052
15407993412,3cyclictest32562-21sh01:31:512
15407993412,3cyclictest32562-21sh01:31:512
15407993412,3cyclictest32490-21sh01:00:252
15407993412,3cyclictest20372-21head22:46:022
15407993412,3cyclictest18153-21sh23:39:392
106891340,1ptp4l401ktimersoftd/300:18:573
1540799339,4cyclictest5282-21sh23:59:242
15407993312,3cyclictest20486-21sh01:53:192
1540799331,15cyclictest25204-21apt-config01:25:502
1540799331,12cyclictest8253-21grep22:21:012
15407993310,4cyclictest1055-21runrttasks00:37:142
15407993310,3cyclictest620-21sh01:00:592
106891330,1ptp4l401ktimersoftd/322:56:443
106891330,1ptp4l401ktimersoftd/322:06:023
106891330,1ptp4l401ktimersoftd/300:52:213
106891330,11ptp4l401ktimersoftd/322:01:143
106891330,11ptp4l401ktimersoftd/322:01:143
1540799323,7cyclictest29387-21apt-get23:05:582
1540799321,11cyclictest207322sleep202:26:122
15407993210,4cyclictest6076-21sh01:38:422
15407993210,4cyclictest47150irq/102-ens3-Tx01:06:202
15407993210,3cyclictest8933-21diskmemload02:58:492
1540799320,12cyclictest19538-21/usr/sbin/munin23:41:022
130882320,3sleep20-21swapper/200:06:162
106891320,1ptp4l401ktimersoftd/322:36:153
106891320,0ptp4l401ktimersoftd/323:15:573
106891320,0ptp4l401ktimersoftd/322:33:153
1540799319,4cyclictest1985-21sh02:06:462
15407993111,3cyclictest15080-21sh01:15:482
1539699310,16cyclictest0-21swapper/022:01:140
1539699310,16cyclictest0-21swapper/022:01:140
106891310,1ptp4l401ktimersoftd/322:53:333
106891310,10ptp4l401ktimersoftd/323:21:173
15407993011,3cyclictest11437-21sh23:31:402
1540799301,12cyclictest27264-21df23:01:002
1539699303,14cyclictest26663-21ps21:51:040
106891300,1ptp4l401ktimersoftd/322:22:483
1540799299,4cyclictest2345-21sh02:41:082
1540799291,4cyclictest8221-21snmp_o5powerctl23:26:132
15407992911,3cyclictest13332-21timerwakeupswit02:51:212
15402992924,3cyclictest25-21ksoftirqd/123:41:061
15402992924,3cyclictest25-21ksoftirqd/121:40:441
1539699293,9cyclictest25020-21perl22:56:020
15402992824,3cyclictest25-21ksoftirqd/103:00:511
15402992823,3cyclictest25-21ksoftirqd/102:00:501
15402992823,3cyclictest21954-21cron22:50:461
15402992821,5cyclictest25-21ksoftirqd/102:46:121
15402992821,4cyclictest1882-21strings01:01:091
106891280,1ptp4l401ktimersoftd/321:39:043
1540799272,7cyclictest18885-21apt-get21:35:562
15407992722,3cyclictest33-21ksoftirqd/201:56:032
15407992720,4cyclictest33-21ksoftirqd/223:50:552
15407992720,4cyclictest33-21ksoftirqd/223:50:552
15407992720,4cyclictest33-21ksoftirqd/201:40:512
1540799271,4cyclictest14950-21snmp_o5powerctl00:41:142
1540799271,3cyclictest18386-21sshd02:24:252
15402992722,3cyclictest25-21ksoftirqd/100:21:081
15402992721,3cyclictest25-21ksoftirqd/100:11:041
15402992721,3cyclictest25-21ksoftirqd/100:00:471
15402992720,5cyclictest25-21ksoftirqd/100:16:011
15402992720,4cyclictest25-21ksoftirqd/121:57:481
15402992719,5cyclictest3553-21sed01:36:071
1539699277,17cyclictest25692-21cron21:50:440
106891270,1ptp4l401ktimersoftd/322:29:333
106891270,0ptp4l401ktimersoftd/322:49:453
15420992620,3cyclictest41-21ksoftirqd/322:42:473
15420992619,4cyclictest41-21ksoftirqd/323:03:063
15407992619,4cyclictest33-21ksoftirqd/223:22:202
15407992619,4cyclictest33-21ksoftirqd/222:55:342
15407992619,4cyclictest33-21ksoftirqd/222:43:302
15402992622,3cyclictest25-21ksoftirqd/123:31:041
1540299262,20cyclictest24965-21cat00:51:171
15402992621,3cyclictest25-21ksoftirqd/100:56:051
15402992621,3cyclictest25-21ksoftirqd/100:41:081
15402992621,3cyclictest25-21ksoftirqd/100:40:491
15402992620,3cyclictest25-21ksoftirqd/123:36:011
15402992619,4cyclictest26656-21sed21:51:041
15402992619,4cyclictest20014-21ssh01:20:481
1539699269,14cyclictest26940-21/usr/sbin/munin23:01:090
106891260,1ptp4l401ktimersoftd/323:30:433
106891260,0ptp4l401ktimersoftd/321:52:093
15407992519,3cyclictest33-21ksoftirqd/222:13:492
15407992519,3cyclictest33-21ksoftirqd/221:59:482
15407992519,3cyclictest33-21ksoftirqd/221:50:282
15407992517,5cyclictest24669-21tail23:46:042
15407992517,5cyclictest24669-21tail23:46:042
15402992520,3cyclictest25-21ksoftirqd/122:36:061
15402992520,3cyclictest25-21ksoftirqd/102:26:081
15402992520,3cyclictest25-21ksoftirqd/102:20:511
15402992519,3cyclictest25-21ksoftirqd/123:01:311
15402992519,3cyclictest25-21ksoftirqd/102:05:511
15402992519,3cyclictest25-21ksoftirqd/100:06:011
15402992518,4cyclictest25-21ksoftirqd/123:16:571
15396992518,4cyclictest9-21ksoftirqd/021:33:100
15396992515,7cyclictest5584-21cpuspeed_turbos22:16:000
106891250,0ptp4l401ktimersoftd/323:10:033
15407992418,3cyclictest33-21ksoftirqd/222:25:572
15407992417,4cyclictest33-21ksoftirqd/222:32:062
15407992417,4cyclictest33-21ksoftirqd/222:09:302
1540299243,13cyclictest17516-21ssh01:51:041
15402992420,3cyclictest25-21ksoftirqd/123:51:071
15402992420,3cyclictest25-21ksoftirqd/123:51:071
15402992419,3cyclictest25-21ksoftirqd/123:46:071
15402992419,3cyclictest25-21ksoftirqd/123:46:071
15402992419,3cyclictest25-21ksoftirqd/100:46:061
15402992419,3cyclictest25-21ksoftirqd/100:26:051
15402992418,4cyclictest25-21ksoftirqd/101:50:421
15402992418,3cyclictest25-21ksoftirqd/122:00:571
15402992418,3cyclictest25-21ksoftirqd/122:00:571
15402992418,3cyclictest25-21ksoftirqd/121:41:031
15396992413,7cyclictest28364-21acpi21:55:570
15407992317,3cyclictest33-21ksoftirqd/200:03:392
15402992319,3cyclictest25-21ksoftirqd/102:51:111
15402992318,3cyclictest25-21ksoftirqd/123:25:391
15402992318,3cyclictest25-21ksoftirqd/123:06:051
15402992318,3cyclictest25-21ksoftirqd/122:06:091
15402992318,3cyclictest25-21ksoftirqd/102:40:511
15402992318,3cyclictest25-21ksoftirqd/101:30:131
15402992318,3cyclictest25-21ksoftirqd/101:25:451
15402992318,3cyclictest25-21ksoftirqd/101:25:451
15402992318,3cyclictest25-21ksoftirqd/100:31:111
15402992317,3cyclictest25-21ksoftirqd/123:12:411
15402992317,3cyclictest25-21ksoftirqd/122:40:591
15402992317,3cyclictest25-21ksoftirqd/122:25:591
15402992317,3cyclictest25-21ksoftirqd/100:05:481
15402992316,4cyclictest25-21ksoftirqd/122:33:171
1539699236,7cyclictest19368-21runrttasks22:42:560
15396992313,7cyclictest6028-21cat23:21:140
106891230,1ptp4l401ktimersoftd/323:11:013
15407992216,3cyclictest33-21ksoftirqd/223:12:102
15407992215,4cyclictest33-21ksoftirqd/201:25:182
15407992215,4cyclictest33-21ksoftirqd/201:25:182
15402992218,2cyclictest25-21ksoftirqd/102:07:551
15402992217,3cyclictest25-21ksoftirqd/102:41:111
15402992217,3cyclictest25-21ksoftirqd/101:31:181
15402992217,3cyclictest25-21ksoftirqd/101:31:181
15402992216,4cyclictest25-21ksoftirqd/122:53:491
15402992216,3cyclictest25-21ksoftirqd/122:15:581
15402992215,4cyclictest25-21ksoftirqd/123:26:371
15402992215,4cyclictest25-21ksoftirqd/101:11:001
15396992212,7cyclictest22238-21cat21:41:040
15407992116,3cyclictest33-21ksoftirqd/200:33:182
15407992115,3cyclictest5283-21hddtemp_smartct02:11:072
15407992114,4cyclictest25238-21sh00:51:252
15407992114,4cyclictest24359-21sh00:18:212
15407992113,5cyclictest47150irq/102-ens3-Tx02:01:012
1540299213,11cyclictest14769-21ssh02:21:041
15402992116,3cyclictest25-21ksoftirqd/102:31:111
15402992115,4cyclictest25-21ksoftirqd/121:34:001
15402992115,3cyclictest25-21ksoftirqd/122:12:121
15402992115,3cyclictest25-21ksoftirqd/121:49:571
15402992114,4cyclictest6708-21load01:06:101
1540299211,17cyclictest9158-21snmp_o5powerctl22:21:081
15402992111,7cyclictest0-21swapper/122:56:051
15407992014,3cyclictest16300-21acpi00:10:592
15407992013,4cyclictest14969-21sh01:47:132
15402992014,4cyclictest25-21ksoftirqd/101:41:071
15407991913,4cyclictest1828-21/usr/sbin/munin23:16:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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