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2026-04-20 - 05:02
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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 Apr 20, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911030,40ptp4l401ktimersoftd/320:20:063
31542740,4sleep233-21ksoftirqd/221:27:372
266522680,4sleep1205299cyclictest01:37:491
190002650,2sleep20-21swapper/222:01:302
167202600,4sleep1241ktimersoftd/101:27:251
2056995614,19cyclictest16627-21sh00:55:122
75772540,2sleep10-21swapper/123:40:011
19212540,3sleep1205299cyclictest22:26:381
99362530,2sleep20-21swapper/223:08:222
206799534,17cyclictest10251-21cat22:36:243
17292534,38sleep00-21swapper/020:18:210
73062510,1sleep20-21swapper/222:31:492
64122490,1sleep20-21swapper/200:11:262
2056994812,24cyclictest10179-21sh00:47:242
2056994711,20cyclictest16585-21sh23:48:072
2056994511,20cyclictest30653-21sh23:30:412
231562440,2sleep20-21swapper/201:35:092
205699441,3cyclictest13388-21chrt00:17:122
205699430,2cyclictest0-21swapper/200:33:172
205699421,25cyclictest23553-21ssh22:49:242
205699421,25cyclictest22338-21/usr/sbin/munin23:21:312
206799412,12cyclictest18220-21cpu22:01:243
205699412,33cyclictest1565-21apt-get00:06:252
205699411,24cyclictest1059-21taskset00:38:242
106891410,1ptp4l401ktimersoftd/322:47:463
106891410,0ptp4l401ktimersoftd/300:04:503
205699402,30cyclictest16825-21apt-get23:16:232
205699400,24cyclictest21121-21taskset00:59:362
205699392,31cyclictest3829-21apt-get23:36:252
205699391,33cyclictest3098-21apt-get00:41:252
106891390,1ptp4l401ktimersoftd/323:34:413
106891390,1ptp4l401ktimersoftd/301:21:563
106891390,1ptp4l401ktimersoftd/301:13:093
106891390,1ptp4l401ktimersoftd/301:13:093
106891390,1ptp4l401ktimersoftd/300:43:313
106891390,1ptp4l401ktimersoftd/300:32:283
106891390,1ptp4l401ktimersoftd/300:21:213
205699386,27cyclictest11991-21ssh23:11:232
205699383,27cyclictest16107-21apt-get00:21:262
205699382,29cyclictest22474-21apt-get01:01:272
205699382,28cyclictest29071-21apt-get01:41:292
106891380,1ptp4l401ktimersoftd/322:44:183
106891380,1ptp4l401ktimersoftd/301:45:333
106891380,1ptp4l401ktimersoftd/300:53:183
106891380,1ptp4l401ktimersoftd/300:39:203
106891380,1ptp4l401ktimersoftd/300:13:233
326742374,19sleep1326-21smartctl20:16:251
205699372,29cyclictest0-21swapper/221:21:222
205699372,26cyclictest7726-21apt-get20:31:222
205699371,20cyclictest0-21swapper/201:25:252
106891370,1ptp4l401ktimersoftd/323:57:273
106891370,1ptp4l401ktimersoftd/323:37:133
106891370,1ptp4l401ktimersoftd/323:24:443
106891370,1ptp4l401ktimersoftd/323:12:233
106891370,1ptp4l401ktimersoftd/323:04:163
106891370,1ptp4l401ktimersoftd/301:32:283
106891370,1ptp4l401ktimersoftd/301:17:323
106891370,1ptp4l401ktimersoftd/301:07:433
106891370,1ptp4l401ktimersoftd/301:07:433
106891370,1ptp4l401ktimersoftd/301:04:063
106891370,1ptp4l401ktimersoftd/301:00:023
106891370,1ptp4l401ktimersoftd/300:47:493
106891370,1ptp4l401ktimersoftd/300:16:233
106891370,1ptp4l401ktimersoftd/300:07:083
205699362,27cyclictest6134-21apt-get21:36:232
106891360,1ptp4l401ktimersoftd/323:51:233
106891360,1ptp4l401ktimersoftd/323:16:503
106891360,1ptp4l401ktimersoftd/322:23:053
205699354,25cyclictest8499-21apt-get21:41:232
205699353,25cyclictest28005-21apt-get22:21:232
205699353,24cyclictest4668-21apt-get01:16:292
205699352,25cyclictest25023-21apt-get22:51:242
205699352,25cyclictest11077-21apt-get21:46:232
2056993513,18cyclictest32334-21grep01:11:302
2056993513,18cyclictest32334-21grep01:11:302
106891350,0ptp4l401ktimersoftd/321:05:073
106891350,0ptp4l401ktimersoftd/320:52:593
106891350,0ptp4l401ktimersoftd/301:36:293
106891350,0ptp4l401ktimersoftd/301:27:363
205699343,25cyclictest29054-21apt-get21:16:212
205699343,24cyclictest25310-21apt-get22:16:232
205699342,27cyclictest0-21swapper/221:51:222
205699342,27cyclictest0-21swapper/220:36:212
205699342,25cyclictest408-21apt-get22:26:242
2056993414,17cyclictest16033-21expr21:56:242
2056993413,18cyclictest29373-21expr00:01:282
205699341,30cyclictest0-21swapper/222:56:272
205699341,29cyclictest1493-21apt-get01:46:312
106891340,1ptp4l401ktimersoftd/322:34:173
106891340,1ptp4l401ktimersoftd/301:47:163
206799335,17cyclictest9835-21snmp_o5powerctl21:41:363
205699335,24cyclictest13477-21cat23:46:132
205699335,24cyclictest10696-21grep22:36:292
205699332,26cyclictest3770-21apt-get21:31:242
205699332,26cyclictest0-21swapper/201:26:272
205699332,24cyclictest31403-21apt-get23:31:272
205699332,24cyclictest24223-21apt-get01:36:302
2056993315,15cyclictest3866-21unixbench-2d20:21:362
2056993313,17cyclictest27461-21sed21:11:292
205699330,5cyclictest20587-21sort20:56:282
205699330,4cyclictest24405-21fschecks_count23:56:282
205699330,4cyclictest24384-21ssh22:11:422
205699323,24cyclictest24303-21apt-get21:06:232
205699322,24cyclictest19286-21ssh23:51:282
205699321,27cyclictest3879-21timerandwakeup23:01:412
205699321,26cyclictest28453-21cut01:06:352
205699321,26cyclictest28453-21cut01:06:352
205699320,3cyclictest21441-21hddtemp_smartct00:26:292
98492310,2sleep00-21swapper/023:08:120
205699313,24cyclictest19273-21idleruntime-cro20:56:092
205699311,26cyclictest15591-21gltestperf22:41:292
2056993112,16cyclictest12377-21/usr/sbin/munin20:41:272
205699310,4cyclictest5606-21forks20:26:232
205699310,4cyclictest22191-21df_inode21:01:242
206799304,16cyclictest2227-21/usr/sbin/munin20:21:273
2067993018,6cyclictest13461-21apt-get21:51:223
2067993010,15cyclictest29058-21taskset21:16:223
205699303,21cyclictest20558-21apt-get22:06:242
205699301,25cyclictest15249-21grep20:46:242
2052993024,3cyclictest25-21ksoftirqd/100:21:371
2047993025,3cyclictest9-21ksoftirqd/022:11:110
206799295,9cyclictest22757-21uptime00:26:433
206799293,12cyclictest20840-21mailstats20:56:303
2067992917,6cyclictest31420-21apt-get21:21:223
2067992910,14cyclictest0-21swapper/322:51:243
205299293,18cyclictest20155-21ssh22:46:241
204799291,5cyclictest19816-21sh20:56:220
9212282,16sleep21001-21grep20:16:302
2067992821,4cyclictest41-21ksoftirqd/322:16:243
2067992817,6cyclictest13929-21apt-get23:46:243
2067992812,12cyclictest0-21swapper/323:26:253
86842270,2sleep10-21swapper/123:06:411
2067992716,6cyclictest7726-21apt-get20:31:213
2052992722,3cyclictest25-21ksoftirqd/123:41:271
2052992721,4cyclictest25-21ksoftirqd/101:43:471
2052992721,3cyclictest25-21ksoftirqd/100:31:141
106891270,1ptp4l401ktimersoftd/321:46:123
206799262,11cyclictest0-21swapper/322:26:313
2067992611,10cyclictest0-21swapper/321:31:243
205299262,16cyclictest25835-21ssh00:31:271
2052992621,3cyclictest25-21ksoftirqd/121:11:091
2052992619,4cyclictest25-21ksoftirqd/121:37:521
2047992621,3cyclictest9-21ksoftirqd/001:11:140
2047992621,3cyclictest9-21ksoftirqd/001:11:140
204799261,20cyclictest0-21swapper/001:11:290
204799261,20cyclictest0-21swapper/001:11:290
304512250,4sleep030455-21ptp4l00:01:360
206799259,10cyclictest0-21swapper/321:56:223
2067992518,4cyclictest41-21ksoftirqd/322:07:213
205299253,15cyclictest0-21swapper/123:56:251
205299253,12cyclictest30682-21ssh00:36:261
2052992521,3cyclictest25-21ksoftirqd/121:31:091
2052992520,3cyclictest25-21ksoftirqd/120:46:191
2052992518,4cyclictest26224-21cat22:16:311
2052992516,5cyclictest9567-21/usr/sbin/munin01:21:451
2047992520,3cyclictest9-21ksoftirqd/001:46:300
2047992519,3cyclictest9-21ksoftirqd/022:52:100
2047992519,3cyclictest9-21ksoftirqd/021:53:480
2047992519,3cyclictest9-21ksoftirqd/021:39:560
2047992519,3cyclictest9-21ksoftirqd/020:49:200
2047992518,4cyclictest9-21ksoftirqd/021:59:190
202472250,4sleep1205299cyclictest22:06:101
106891250,1ptp4l401ktimersoftd/323:41:263
106891250,1ptp4l401ktimersoftd/322:57:473
279562240,4sleep1205299cyclictest23:26:361
2067992418,3cyclictest41-21ksoftirqd/320:42:073
2067992417,4cyclictest41-21ksoftirqd/321:28:273
2052992419,3cyclictest4987-21grep20:26:101
2052992419,3cyclictest25-21ksoftirqd/123:16:301
2052992419,3cyclictest25-21ksoftirqd/123:11:321
2052992419,3cyclictest25-21ksoftirqd/122:41:251
2052992418,4cyclictest25-21ksoftirqd/121:34:511
2052992418,3cyclictest25-21ksoftirqd/123:21:301
2052992418,3cyclictest25-21ksoftirqd/120:54:241
2052992417,4cyclictest25-21ksoftirqd/123:04:081
2052992417,4cyclictest25-21ksoftirqd/122:11:281
2052992417,4cyclictest25-21ksoftirqd/121:52:281
2052992417,4cyclictest25-21ksoftirqd/120:39:591
2047992419,3cyclictest9-21ksoftirqd/023:28:130
2047992418,3cyclictest9-21ksoftirqd/020:25:240
2047992418,3cyclictest4651-21irqstats21:31:300
2047992417,4cyclictest30229-21grep22:56:280
106891240,1ptp4l401ktimersoftd/323:06:283
106891240,1ptp4l401ktimersoftd/321:36:303
106891240,1ptp4l401ktimersoftd/321:06:233
106891240,1ptp4l401ktimersoftd/320:36:213
205299234,12cyclictest64-21kswapd000:46:271
205299233,3cyclictest304532tail00:01:361
2052992318,3cyclictest25-21ksoftirqd/122:26:111
2052992317,4cyclictest25-21ksoftirqd/122:38:021
2052992317,3cyclictest25-21ksoftirqd/121:22:581
2052992317,3cyclictest25-21ksoftirqd/101:01:331
2052992316,4cyclictest25-21ksoftirqd/120:32:001
2052992314,5cyclictest5866-21gltestperf22:31:291
2052992311,9cyclictest27945-21sh22:53:331
205299230,3cyclictest121rcu_preempt00:07:421
2047992318,3cyclictest9-21ksoftirqd/023:57:100
2047992318,3cyclictest9-21ksoftirqd/000:31:260
2047992317,4cyclictest15203-21sed01:26:340
2047992317,3cyclictest9-21ksoftirqd/021:28:080
2047992315,5cyclictest5789-21cut20:26:240
2047992315,5cyclictest18204-21ssh23:16:340
204799231,19cyclictest16106-21ssh00:54:170
106891230,1ptp4l401ktimersoftd/322:11:293
106891230,1ptp4l401ktimersoftd/321:11:243
106891230,1ptp4l401ktimersoftd/320:46:213
106891230,1ptp4l401ktimersoftd/320:26:243
27062220,4sleep02685-21ssh00:06:340
2052992216,3cyclictest25-21ksoftirqd/121:42:231
2052992216,3cyclictest25-21ksoftirqd/101:11:351
2052992216,3cyclictest25-21ksoftirqd/101:11:351
2052992216,3cyclictest25-21ksoftirqd/100:46:141
2052992215,4cyclictest25-21ksoftirqd/120:26:081
205299220,3cyclictest121rcu_preempt23:55:461
204799222,17cyclictest31803-21grep23:31:300
2047992215,4cyclictest21857-21/usr/sbin/munin21:01:300
2047992215,4cyclictest20065-21/usr/sbin/munin22:46:330
2047992215,3cyclictest14881-21latency_hist22:41:120
204799221,3cyclictest27386-21diskmemload23:39:490
204799221,19cyclictest0-21swapper/021:16:340
204799221,19cyclictest0-21swapper/001:42:540
204799221,18cyclictest9389-21snmp_o5powerctl00:46:390
319792210,3sleep1231rcuc/101:11:151
319792210,3sleep1231rcuc/101:11:151
243592210,4sleep024363-21cpuspeed_turbos01:36:310
2052992117,2cyclictest25-21ksoftirqd/100:53:281
2052992116,3cyclictest25-21ksoftirqd/123:00:061
2052992115,4cyclictest25-21ksoftirqd/121:59:281
2052992115,3cyclictest25-21ksoftirqd/121:16:321
2052992114,4cyclictest2735-21sh23:35:021
2052992114,4cyclictest1858-21fschecks_time01:46:341
2052992114,4cyclictest17563-21/usr/sbin/munin00:56:301
2052992114,4cyclictest10792-21sshd00:16:071
2047992115,4cyclictest19594-21date22:46:120
2047992115,3cyclictest8278-21apt-get23:41:150
2047992114,4cyclictest6722-21ptp4l-jitter22:31:350
2047992114,4cyclictest19202-21timedrift00:56:420
2047992114,4cyclictest10393-21fschecks_count20:36:250
204799211,18cyclictest0-21swapper/023:04:040
204799211,18cyclictest0-21swapper/021:47:590
204799211,18cyclictest0-21swapper/000:39:170
204799211,17cyclictest27386-21diskmemload22:21:510
204799211,17cyclictest0-21swapper/001:16:400
204799210,2cyclictest0-21swapper/020:34:090
204799210,19cyclictest0-21swapper/000:13:580
2052992013,4cyclictest5094-21perl01:16:321
2052992013,4cyclictest14449-21sh23:46:291
2052992012,5cyclictest27386-21diskmemload01:31:431
2047992016,2cyclictest0-21swapper/022:12:550
2047992015,3cyclictest9-21ksoftirqd/001:02:390
2047992015,3cyclictest0-21swapper/021:22:460
2047992015,3cyclictest0-21swapper/000:21:420
2047992014,3cyclictest9-21ksoftirqd/022:16:550
2047992014,3cyclictest9-21ksoftirqd/020:53:060
2047992014,3cyclictest3679-21if_enp1s0.100:41:310
2047992014,3cyclictest13528-21nfs4_client20:41:300
204799201,3cyclictest27386-21diskmemload00:27:480
2047992013,4cyclictest19595-21if_enp1s0.123:51:310
204799201,17cyclictest0-21swapper/023:22:250
204799201,17cyclictest0-21swapper/023:15:210
204799201,17cyclictest0-21swapper/001:22:160
204799201,16cyclictest9841-21snmp_o5powerctl21:41:370
204799201,16cyclictest19183-21ssh01:31:160
204799200,9cyclictest196032sed22:01:390
204799200,18cyclictest0-21swapper/023:49:100
204799200,18cyclictest0-21swapper/022:28:520
204799200,18cyclictest0-21swapper/000:18:380
2052991914,3cyclictest25-21ksoftirqd/120:58:301
2052991913,3cyclictest24010-21idleruntime-cro21:06:091
2052991913,3cyclictest22166-21sed22:06:411
2052991912,4cyclictest13445-21sort20:41:291
2052991912,4cyclictest11955-21irqstats21:46:301
2047991912,4cyclictest26609-21/usr/sbin/munin21:11:280
204799191,16cyclictest0-21swapper/021:07:100
2052991811,5cyclictest11377-21cpuspeed_turbos00:16:281
2052991712,3cyclictest25-21ksoftirqd/121:11:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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