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2026-05-24 - 05:07
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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 Sun May 24, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1566722240,4sleep20-21swapper/220:35:272
841021630,6sleep31631499cyclictest21:29:583
106891950,4ptp4l401ktimersoftd/320:37:013
106891890,12ptp4l401ktimersoftd/301:25:233
55992730,2sleep20-21swapper/201:50:582
214662700,3sleep20-21swapper/200:30:162
161602634,10sleep00-21swapper/020:39:340
106891630,1ptp4l401ktimersoftd/300:48:393
16293995913,14cyclictest4997-21snmp_o5powerctl01:50:330
16293995912,16cyclictest9431-21diskmemload00:22:130
16293995912,16cyclictest9431-21diskmemload00:22:130
16293995911,11cyclictest14108-21ssh23:50:020
106891590,1ptp4l401ktimersoftd/302:01:153
106891590,1ptp4l401ktimersoftd/302:01:153
16314995845,7cyclictest41-21ksoftirqd/300:00:143
16293995816,38cyclictest26037-21ssh01:40:190
16293995812,16cyclictest32629-21ssh01:45:350
16293995714,11cyclictest30598-21/usr/sbin/munin00:05:280
16293995712,16cyclictest9431-21diskmemload01:04:080
106891570,1ptp4l401ktimersoftd/322:34:243
106891570,1ptp4l401ktimersoftd/300:07:053
16293995612,11cyclictest9431-21diskmemload23:43:190
16293995612,10cyclictest6359-21ssh01:20:210
16293995612,10cyclictest17061-21cat23:20:020
16293995513,14cyclictest30661-21ssh00:39:560
16293995512,10cyclictest30139-21/usr/sbin/munin01:10:330
16293995511,8cyclictest19318-21apt-get23:55:140
16293995511,8cyclictest14420-21apt-get23:50:150
16293995511,16cyclictest9431-21diskmemload00:52:460
16293995511,14cyclictest4924-21ssh00:12:560
16293995511,14cyclictest26867-21ssh22:55:480
16293995511,14cyclictest2250-21ssh00:43:240
16293995511,14cyclictest18867-21ssh01:32:290
16293995510,16cyclictest30861-21ssh23:33:410
14292550,3sleep21630399cyclictest23:35:312
13172550,2sleep00-21swapper/021:14:580
106891550,1ptp4l401ktimersoftd/322:58:243
106891550,1ptp4l401ktimersoftd/300:23:573
106891550,1ptp4l401ktimersoftd/300:23:573
16293995412,9cyclictest4944-21ptp4l00:45:270
16293995412,13cyclictest21850-21ssh02:08:310
16293995412,12cyclictest9431-21diskmemload01:55:230
16293995412,10cyclictest21630-21/usr/sbin/munin22:50:290
16293995411,17cyclictest9431-21diskmemload01:17:410
16293995411,14cyclictest25695-21ssh23:28:190
16293995411,11cyclictest9431-21diskmemload00:30:360
16293995410,11cyclictest9431-21diskmemload01:05:080
20972530,1sleep10-21swapper/101:48:241
16293995314,17cyclictest1543-21/usr/sbin/munin21:15:160
16293995313,9cyclictest7477-21phc2sys-jitter21:25:200
16293995313,16cyclictest8415-21needreboot22:35:210
16293995313,16cyclictest8415-21needreboot22:35:210
16293995313,16cyclictest11791-21irqrtprio01:25:230
16293995312,9cyclictest24508-21df_inode00:00:160
16293995312,11cyclictest9431-21diskmemload23:08:030
16293995312,11cyclictest9431-21diskmemload00:28:230
16293995311,13cyclictest3178-21ssh23:38:220
16293995311,12cyclictest9431-21diskmemload01:38:260
16293995311,10cyclictest9431-21diskmemload23:20:160
16293995212,8cyclictest17884-21python20:40:200
16293995212,8cyclictest16262-21snmp_o5powerctl22:45:290
16293995211,8cyclictest9847-21apt-get22:40:120
16293995211,8cyclictest27933-21apt-get22:10:100
16293995211,8cyclictest18450-21apt-get21:50:120
266332510,2sleep30-21swapper/322:05:193
16293995112,16cyclictest8910-21snmp_o5powerctl23:10:280
16293995110,11cyclictest9431-21diskmemload00:17:550
16293995013,17cyclictest3457-21cut22:25:180
16293995012,16cyclictest20925-21snmp_o5powerctl20:45:220
16293995011,9cyclictest30500-21ps21:05:200
16293995011,8cyclictest5111-21phc2sys-jitter21:20:200
16293995011,8cyclictest28990-21munin-run21:04:580
16293995011,8cyclictest17180-21python21:45:240
16293994912,16cyclictest9431-21diskmemload02:02:150
16293994912,16cyclictest9431-21diskmemload02:02:150
16293994911,8cyclictest24816-21diskstats20:55:120
16293994911,8cyclictest2307-21munin-run22:24:590
16293994911,16cyclictest22112-21/usr/sbin/munin20:50:200
16293994911,16cyclictest22112-21/usr/sbin/munin20:50:200
16293994910,8cyclictest9431-21diskmemload00:56:340
161262494,32sleep10-21swapper/120:39:061
106891490,1ptp4l401ktimersoftd/300:18:003
16293994810,16cyclictest9431-21diskmemload23:00:200
16293994712,8cyclictest25806-21diskstats22:05:130
16293994711,8cyclictest24521-21snmp_o5powerctl22:00:230
106891460,1ptp4l401ktimersoftd/323:22:093
106891450,1ptp4l401ktimersoftd/300:57:133
16293994411,8cyclictest9219-21hddtemp_smartct21:30:160
1629399439,8cyclictest13723-21df21:40:110
106891420,1ptp4l401ktimersoftd/301:04:303
16293993912,8cyclictest12454-21snmp_o5powerctl21:35:250
106891390,1ptp4l401ktimersoftd/323:28:023
106891390,1ptp4l401ktimersoftd/323:04:373
1629399389,19cyclictest0-21swapper/022:15:120
106891380,1ptp4l401ktimersoftd/323:52:113
106891380,1ptp4l401ktimersoftd/323:42:083
106891380,1ptp4l401ktimersoftd/323:37:393
106891380,1ptp4l401ktimersoftd/323:19:053
106891380,1ptp4l401ktimersoftd/322:48:113
106891380,1ptp4l401ktimersoftd/301:53:053
106891380,1ptp4l401ktimersoftd/301:31:143
106891380,1ptp4l401ktimersoftd/301:13:163
106891380,0ptp4l401ktimersoftd/300:39:593
16303993710,3cyclictest22413-21expr20:50:112
16303993710,3cyclictest22413-21expr20:50:112
16293993713,8cyclictest20739-21/usr/sbin/munin21:55:300
106891370,1ptp4l401ktimersoftd/323:56:163
106891370,1ptp4l401ktimersoftd/323:46:173
106891370,1ptp4l401ktimersoftd/323:31:353
106891370,1ptp4l401ktimersoftd/322:52:143
106891370,1ptp4l401ktimersoftd/322:41:273
106891370,1ptp4l401ktimersoftd/321:55:283
106891370,1ptp4l401ktimersoftd/320:53:053
106891370,1ptp4l401ktimersoftd/320:53:053
106891370,1ptp4l401ktimersoftd/301:55:363
106891370,1ptp4l401ktimersoftd/301:41:313
106891370,1ptp4l401ktimersoftd/301:37:473
106891370,1ptp4l401ktimersoftd/300:54:053
106891370,1ptp4l401ktimersoftd/300:43:393
106891370,1ptp4l401ktimersoftd/300:26:193
106891370,1ptp4l401ktimersoftd/300:14:353
106891370,0ptp4l401ktimersoftd/301:21:483
1630399362,31cyclictest22649-21grep23:25:172
16303993613,20cyclictest17177-21/usr/sbin/munin23:20:162
1630399360,13cyclictest26851-21ssh00:01:512
106891360,1ptp4l401ktimersoftd/302:08:253
106891360,1ptp4l401ktimersoftd/301:17:393
106891360,1ptp4l401ktimersoftd/301:06:223
106891360,1ptp4l401ktimersoftd/300:30:303
1630399353,9cyclictest9500-21apt-get23:45:152
1630399352,8cyclictest13688-21sh00:55:142
16303993513,19cyclictest10373-21apt-key01:25:052
16303993512,3cyclictest31752-21ls22:15:282
16303993512,19cyclictest31357-21latency_hist21:09:582
106891350,2ptp4l9840-21kworker/3:021:07:363
106891350,0ptp4l401ktimersoftd/323:06:133
1630399348,4cyclictest8323-21sed00:15:342
1630399346,25cyclictest0-21swapper/223:13:042
1630399342,10cyclictest1787-21tr00:10:152
16303993413,18cyclictest8756-21sh23:44:292
16303993412,3cyclictest26397-21cut22:05:172
16303993412,3cyclictest24927-21fschecks_time20:55:132
16303993412,19cyclictest589-21sh23:02:342
16303993412,19cyclictest21719-21sh01:02:432
16303993411,3cyclictest16408-21sh01:30:212
1630399340,12cyclictest27246-21fschecks_time21:00:132
16293993419,11cyclictest0-21swapper/022:30:100
106891340,1ptp4l401ktimersoftd/321:00:113
1631499333,21cyclictest0-21swapper/321:20:113
1630399338,4cyclictest6315-21bc21:25:102
1630399338,4cyclictest14572-21cpuspeed_turbos23:50:162
1630399338,3cyclictest32085-21cat01:45:272
1630399337,4cyclictest29538-21apt-key23:00:012
1630399331,6cyclictest19929-21apt-get22:50:122
16303993312,3cyclictest13729-21sh01:27:092
16303993312,18cyclictest6147-21sh23:08:342
16303993311,3cyclictest8317-21sh01:55:122
16303993311,3cyclictest6454-21sh00:47:132
16303993311,3cyclictest28721-21sh00:36:382
16303993311,3cyclictest22846-21latency_hist02:10:052
106891330,1ptp4l401ktimersoftd/323:12:163
106891330,1ptp4l401ktimersoftd/322:10:143
1630399327,4cyclictest9602-21sed00:50:212
16303993212,3cyclictest12482-21tr23:15:182
16303993211,3cyclictest29498-21sh23:31:212
1630399321,12cyclictest25951-21grep01:40:192
1630399321,10cyclictest0-21swapper/201:35:212
16303993210,3cyclictest19051-21sh00:26:562
16303993210,3cyclictest13988-21if_enp1s021:40:152
1630399320,3cyclictest31049-21/usr/sbin/munin00:40:252
1630399320,2cyclictest0-21swapper/201:18:072
1630399320,14cyclictest9751-21sh22:40:102
106891320,1ptp4l401ktimersoftd/320:45:523
1630399318,3cyclictest29507-21fschecks_time00:05:182
1630399318,3cyclictest17138-21mailstats21:45:232
1630399316,3cyclictest4205-21unixbench_multi22:25:282
1630399312,5cyclictest24520-21snmp_o5powerctl22:00:232
16303993112,3cyclictest19919-21timerandwakeup21:50:282
16303993111,3cyclictest16242-21sh02:02:212
16303993111,3cyclictest16242-21sh02:02:212
16303993110,3cyclictest488-21latency_hist01:15:042
106891310,10ptp4l401ktimersoftd/321:15:263
1630399302,6cyclictest20772-21snmp_o5powerctl23:55:282
1630399302,5cyclictest8742-21apt-get21:30:112
1630399301,3cyclictest12411-21awk21:35:212
1629899307,12cyclictest29994-21ssh23:00:131
16298993024,3cyclictest19625-21kworker/1:222:29:591
106891300,1ptp4l401ktimersoftd/322:15:223
106891300,11ptp4l401ktimersoftd/320:55:463
1630399298,3cyclictest5968-21load22:30:182
1630399298,3cyclictest24943-21snmp_o5powerctl01:05:272
1630399291,4cyclictest15070-21diskstats22:45:162
1630399291,13cyclictest22163-21snmp_o5powerctl21:55:262
106891290,0ptp4l401ktimersoftd/321:39:413
16303992822,3cyclictest33-21ksoftirqd/222:20:112
1630399281,4cyclictest28188-21df_inode22:10:132
16298992823,3cyclictest25-21ksoftirqd/101:00:351
16314992720,4cyclictest41-21ksoftirqd/321:48:533
1630399278,3cyclictest1055-21runrttasks21:24:092
1630399271,11cyclictest8349-21memory22:35:202
1630399271,11cyclictest8349-21memory22:35:202
16298992722,3cyclictest25-21ksoftirqd/101:31:461
16298992719,3cyclictest25-21ksoftirqd/100:25:181
117802270,1sleep10-21swapper/101:25:231
106891270,1ptp4l401ktimersoftd/322:38:233
106891270,1ptp4l401ktimersoftd/322:38:233
16314992620,3cyclictest41-21ksoftirqd/301:45:253
1630399263,5cyclictest11477-21apt-get00:20:152
1630399263,5cyclictest11477-21apt-get00:20:152
1630399260,5cyclictest17225-21irqrtprio20:40:152
16298992621,3cyclictest25-21ksoftirqd/101:05:041
16298992620,3cyclictest25-21ksoftirqd/122:24:591
16298992620,3cyclictest25-21ksoftirqd/100:50:061
16298992620,3cyclictest25-21ksoftirqd/100:45:191
16298992620,3cyclictest25-21ksoftirqd/100:05:231
106891260,1ptp4l401ktimersoftd/321:12:483
16314992519,3cyclictest41-21ksoftirqd/322:28:563
1629899253,16cyclictest0-21swapper/100:35:151
16298992520,3cyclictest25-21ksoftirqd/123:50:151
16298992520,3cyclictest25-21ksoftirqd/123:15:161
16298992520,3cyclictest25-21ksoftirqd/102:05:051
16298992520,3cyclictest25-21ksoftirqd/102:05:051
16298992520,3cyclictest25-21ksoftirqd/101:55:271
16298992520,3cyclictest25-21ksoftirqd/101:40:181
16298992518,4cyclictest15119-21grep22:45:171
106891250,0ptp4l401ktimersoftd/320:40:053
293452240,2sleep10-21swapper/122:10:271
16303992417,4cyclictest2271-21cut21:15:172
16298992419,3cyclictest25-21ksoftirqd/123:55:171
16298992419,3cyclictest25-21ksoftirqd/123:45:021
16298992418,4cyclictest25-21ksoftirqd/122:18:581
16298992418,3cyclictest25-21ksoftirqd/121:17:241
16298992417,4cyclictest25-21ksoftirqd/123:37:431
16298992417,4cyclictest25-21ksoftirqd/121:12:591
16298992417,4cyclictest25-21ksoftirqd/121:08:371
106891240,1ptp4l401ktimersoftd/322:20:273
106891240,1ptp4l401ktimersoftd/321:50:233
106891240,1ptp4l401ktimersoftd/321:30:113
2813422317,3sleep125-21ksoftirqd/100:04:021
16298992318,3cyclictest25-21ksoftirqd/121:04:581
16298992318,3cyclictest25-21ksoftirqd/101:35:311
16298992317,3cyclictest25-21ksoftirqd/122:43:271
16298992317,3cyclictest25-21ksoftirqd/121:58:241
16298992317,3cyclictest25-21ksoftirqd/121:20:171
16298992317,3cyclictest25-21ksoftirqd/120:43:491
16298992317,3cyclictest25-21ksoftirqd/101:20:221
16298992317,3cyclictest25-21ksoftirqd/100:14:211
16298992316,4cyclictest31643-21sh00:40:191
16298992316,4cyclictest25-21ksoftirqd/122:34:591
16298992316,4cyclictest25-21ksoftirqd/121:48:151
106891230,1ptp4l401ktimersoftd/322:00:103
106891230,1ptp4l401ktimersoftd/321:40:183
16298992217,3cyclictest25-21ksoftirqd/123:15:011
16298992217,3cyclictest25-21ksoftirqd/100:15:241
16298992216,3cyclictest25-21ksoftirqd/122:55:131
16298992216,3cyclictest25-21ksoftirqd/120:52:591
16298992216,3cyclictest25-21ksoftirqd/120:52:591
16298992214,4cyclictest20097-21awk02:05:361
16298992116,3cyclictest25-21ksoftirqd/123:20:191
16298992116,3cyclictest25-21ksoftirqd/101:15:341
16298992116,3cyclictest25-21ksoftirqd/100:30:191
16298992115,3cyclictest25-21ksoftirqd/122:36:291
16298992115,3cyclictest25-21ksoftirqd/122:36:291
16298992115,3cyclictest25-21ksoftirqd/121:35:491
16298992115,3cyclictest21064-21needreboot22:50:201
16298992114,4cyclictest4486-21/usr/sbin/munin23:40:231
16298992114,4cyclictest25-21ksoftirqd/122:08:261
16298992114,4cyclictest22504-21fschecks_count23:25:171
16298992114,4cyclictest20170-21awk20:45:151
1630399201,16cyclictest19274-21df20:45:012
16298992015,3cyclictest25-21ksoftirqd/123:05:191
16298992015,3cyclictest25-21ksoftirqd/120:55:161
16298992015,3cyclictest25-21ksoftirqd/101:12:021
16298992014,3cyclictest27087-21/usr/sbin/munin23:30:261
16298992014,3cyclictest1055-21runrttasks01:52:211
16298992013,4cyclictest8034-21uptime21:25:281
16298992013,4cyclictest11449-21bc00:20:131
16298992013,4cyclictest11449-21bc00:20:131
1629899201,16cyclictest15159-21users21:40:271
16303991913,3cyclictest33-21ksoftirqd/221:11:072
16298991914,3cyclictest23658-21hddtemp_smartct22:00:151
16298991913,3cyclictest18156-21apt-config21:50:011
16298991913,3cyclictest13638-21cat00:55:141
16298991813,3cyclictest25-21ksoftirqd/121:31:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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