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2026-09-15 - 05:14
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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 376 highest latencies:
System rackbslot6.osadl.org (updated Tue Sep 15, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2733221780,3sleep13015599cyclictest00:52:581
207121680,5sleep23016199cyclictest22:58:082
1068911620,6ptp4l391rcuc/321:40:123
1219621610,2sleep03014999cyclictest02:14:470
295252700,5sleep233-21ksoftirqd/200:53:272
30170996215,10cyclictest41-21ksoftirqd/301:13:143
3015599620,31cyclictest23065-21diskmemload00:20:091
30170996132,3cyclictest41-21ksoftirqd/300:43:153
30170996121,4cyclictest41-21ksoftirqd/322:52:553
30161996128,5cyclictest33-21ksoftirqd/200:52:592
3015599600,24cyclictest31119-21date03:08:011
206982600,2sleep30-21swapper/322:28:143
3015599591,24cyclictest22579-21awk00:13:261
30170995834,3cyclictest41-21ksoftirqd/323:48:103
30170995828,4cyclictest41-21ksoftirqd/303:13:013
3015599581,24cyclictest28963-21latency_hist02:33:011
307302570,2sleep20-21swapper/202:01:162
279222574,39sleep00-21swapper/021:38:030
107932570,1sleep30-21swapper/301:41:103
106891570,1ptp4l401ktimersoftd/323:47:273
30170995628,4cyclictest41-21ksoftirqd/301:12:583
3015599560,26cyclictest0-21swapper/102:53:061
234602560,2sleep30-21swapper/302:58:433
30161995527,3cyclictest33-21ksoftirqd/202:58:002
106891550,1ptp4l401ktimersoftd/302:44:263
30170995429,4cyclictest41-21ksoftirqd/300:28:153
30170995426,4cyclictest41-21ksoftirqd/300:33:273
30170995423,8cyclictest41-21ksoftirqd/323:17:553
30170995422,4cyclictest41-21ksoftirqd/302:18:223
30161995426,4cyclictest33-21ksoftirqd/200:07:572
30161995425,4cyclictest33-21ksoftirqd/200:42:582
106891540,1ptp4l401ktimersoftd/300:26:263
47662530,2sleep20-21swapper/202:40:192
30170995328,4cyclictest41-21ksoftirqd/301:27:593
30170995328,4cyclictest41-21ksoftirqd/301:27:593
30170995327,4cyclictest41-21ksoftirqd/302:03:163
30170995327,4cyclictest41-21ksoftirqd/300:22:583
30170995327,3cyclictest41-21ksoftirqd/323:17:563
30170995327,3cyclictest41-21ksoftirqd/303:08:003
30170995326,6cyclictest41-21ksoftirqd/300:03:103
30170995326,4cyclictest41-21ksoftirqd/323:42:563
30170995326,4cyclictest41-21ksoftirqd/302:33:233
30170995323,7cyclictest41-21ksoftirqd/302:38:193
30170995323,4cyclictest41-21ksoftirqd/322:12:543
30161995326,4cyclictest33-21ksoftirqd/203:08:302
30161995325,6cyclictest33-21ksoftirqd/201:33:182
30161995325,6cyclictest33-21ksoftirqd/201:33:182
30161995325,5cyclictest33-21ksoftirqd/202:48:232
30161995325,4cyclictest33-21ksoftirqd/201:08:222
30161995324,5cyclictest33-21ksoftirqd/202:03:232
30161995324,15cyclictest33-21ksoftirqd/201:43:262
30161995321,4cyclictest33-21ksoftirqd/201:28:132
30161995321,4cyclictest33-21ksoftirqd/201:28:132
3016199532,11cyclictest30901-21apt03:08:002
30161995316,9cyclictest33-21ksoftirqd/202:33:142
3015599531,25cyclictest14239-21fschecks_time23:23:111
3015599530,25cyclictest0-21swapper/101:40:161
296262530,3sleep00-21swapper/000:21:530
30170995227,4cyclictest41-21ksoftirqd/300:48:093
30170995226,4cyclictest41-21ksoftirqd/322:42:553
30170995226,4cyclictest41-21ksoftirqd/301:23:153
30170995225,4cyclictest41-21ksoftirqd/301:48:003
30170995224,7cyclictest41-21ksoftirqd/322:58:173
30170995224,7cyclictest41-21ksoftirqd/321:58:053
30170995224,7cyclictest41-21ksoftirqd/321:48:233
30170995224,6cyclictest41-21ksoftirqd/301:42:593
30170995223,7cyclictest41-21ksoftirqd/322:37:553
30170995223,3cyclictest41-21ksoftirqd/300:17:573
3016199524,11cyclictest6763-21apt-get02:43:132
30161995226,4cyclictest33-21ksoftirqd/223:43:312
30170995127,3cyclictest41-21ksoftirqd/302:28:183
30170995126,4cyclictest41-21ksoftirqd/322:23:103
30170995125,4cyclictest41-21ksoftirqd/323:58:163
30170995125,4cyclictest41-21ksoftirqd/302:13:283
30170995125,4cyclictest41-21ksoftirqd/302:08:223
30170995125,4cyclictest41-21ksoftirqd/301:07:583
30170995125,4cyclictest41-21ksoftirqd/301:02:583
30170995124,4cyclictest41-21ksoftirqd/323:12:563
30170995124,4cyclictest41-21ksoftirqd/302:53:203
30170995124,4cyclictest41-21ksoftirqd/301:18:133
30170995124,4cyclictest41-21ksoftirqd/300:08:153
30170995123,4cyclictest41-21ksoftirqd/301:37:593
30170995123,4cyclictest41-21ksoftirqd/301:37:593
30170995121,7cyclictest41-21ksoftirqd/302:48:233
30170995111,8cyclictest41-21ksoftirqd/300:53:093
30161995135,3cyclictest33-21ksoftirqd/201:53:312
30161995125,4cyclictest33-21ksoftirqd/222:07:542
30161995125,4cyclictest33-21ksoftirqd/222:07:542
30161995125,4cyclictest33-21ksoftirqd/201:17:582
30161995124,5cyclictest33-21ksoftirqd/202:18:292
30161995123,6cyclictest33-21ksoftirqd/201:23:212
30161995123,4cyclictest33-21ksoftirqd/203:03:002
30161995123,4cyclictest33-21ksoftirqd/202:28:102
30161995122,4cyclictest33-21ksoftirqd/223:53:152
30161995115,4cyclictest33-21ksoftirqd/223:48:262
30161995114,4cyclictest33-21ksoftirqd/223:37:552
3015599510,22cyclictest11184-21ssh02:47:531
30170995024,4cyclictest41-21ksoftirqd/323:53:213
30170995024,4cyclictest41-21ksoftirqd/323:03:133
30170995024,4cyclictest41-21ksoftirqd/322:57:563
30170995024,4cyclictest41-21ksoftirqd/321:43:093
30170995024,4cyclictest41-21ksoftirqd/301:53:213
30170995024,4cyclictest41-21ksoftirqd/300:38:103
30170995024,3cyclictest41-21ksoftirqd/302:27:283
30161995037,3cyclictest33-21ksoftirqd/201:38:272
30161995033,3cyclictest33-21ksoftirqd/223:58:162
30161995024,4cyclictest33-21ksoftirqd/223:03:142
30161995024,4cyclictest33-21ksoftirqd/222:38:112
30161995023,4cyclictest33-21ksoftirqd/222:28:112
30161995023,4cyclictest33-21ksoftirqd/201:48:102
30161995023,4cyclictest33-21ksoftirqd/200:33:122
30161995022,4cyclictest33-21ksoftirqd/200:58:132
30161995021,5cyclictest33-21ksoftirqd/201:20:442
30161995013,5cyclictest33-21ksoftirqd/200:23:262
299612504,33sleep20-21swapper/221:41:452
185072500,2sleep10-21swapper/102:22:111
30170994924,4cyclictest41-21ksoftirqd/323:33:153
30170994924,4cyclictest41-21ksoftirqd/322:43:123
30170994924,4cyclictest41-21ksoftirqd/322:03:173
30170994924,4cyclictest41-21ksoftirqd/322:03:173
30170994923,4cyclictest41-21ksoftirqd/322:18:113
30170994923,4cyclictest41-21ksoftirqd/321:57:543
30170994922,4cyclictest41-21ksoftirqd/301:58:123
30161994924,8cyclictest33-21ksoftirqd/223:28:082
30161994924,4cyclictest33-21ksoftirqd/221:53:232
30161994923,4cyclictest33-21ksoftirqd/200:18:082
30161994923,4cyclictest33-21ksoftirqd/200:17:132
30161994923,3cyclictest33-21ksoftirqd/200:28:192
3016199491,10cyclictest33-21ksoftirqd/222:18:232
114492490,2sleep10-21swapper/102:13:321
30170994823,4cyclictest41-21ksoftirqd/323:23:163
3016199487,10cyclictest33-21ksoftirqd/202:23:152
30161994823,4cyclictest33-21ksoftirqd/222:08:102
30161994822,4cyclictest33-21ksoftirqd/202:13:192
30161994821,5cyclictest33-21ksoftirqd/223:13:122
3016199482,11cyclictest31579-21sendmail22:52:552
30161994819,5cyclictest33-21ksoftirqd/222:57:562
30170994723,4cyclictest41-21ksoftirqd/323:28:133
3016199477,7cyclictest33-21ksoftirqd/221:43:122
3016199476,9cyclictest33-21ksoftirqd/200:43:162
30161994730,3cyclictest33-21ksoftirqd/200:08:152
30161994723,3cyclictest33-21ksoftirqd/222:13:092
30161994722,4cyclictest33-21ksoftirqd/221:58:072
30161994721,4cyclictest33-21ksoftirqd/221:47:572
30161994721,4cyclictest33-21ksoftirqd/202:08:292
3016199472,10cyclictest33-21ksoftirqd/222:43:252
3016199467,4cyclictest33-21ksoftirqd/223:23:172
30161994622,4cyclictest33-21ksoftirqd/222:33:142
30161994621,4cyclictest33-21ksoftirqd/223:08:192
3014999464,12cyclictest64-21kswapd002:48:110
30170994521,4cyclictest41-21ksoftirqd/323:38:123
30170994521,4cyclictest41-21ksoftirqd/322:13:093
3016199453,11cyclictest33-21ksoftirqd/201:03:152
30161994518,4cyclictest33-21ksoftirqd/223:42:562
30161994518,4cyclictest33-21ksoftirqd/223:42:562
30161994419,4cyclictest33-21ksoftirqd/223:17:562
30161994419,4cyclictest33-21ksoftirqd/222:27:552
3015599441,25cyclictest14879-21vmstat00:38:281
3014999421,12cyclictest4665-21ssh02:08:130
42892410,2sleep10-21swapper/101:33:291
42892410,2sleep10-21swapper/101:33:291
3015599412,32cyclictest6559-21apt-get23:08:081
3015599411,24cyclictest6058-21chrt00:30:131
3015599393,20cyclictest12266-21modprobe02:48:171
3015599392,31cyclictest30665-21apt-get00:23:091
3015599390,19cyclictest0-21swapper/123:55:041
3015599383,28cyclictest17923-21apt-get00:43:091
3015599380,27cyclictest0-21swapper/100:12:311
3015599380,25cyclictest0-21swapper/101:15:481
3015599380,24cyclictest0-21swapper/100:58:341
3015599380,21cyclictest0-21swapper/122:38:131
3015599373,27cyclictest4648-21apt-get02:08:111
3015599371,20cyclictest21479-21apt-get02:58:121
3015599361,21cyclictest0-21swapper/100:05:401
3015599361,19cyclictest0-21swapper/101:23:371
3015599360,22cyclictest29285-21latency_hist22:47:551
1357723617,4sleep09-21ksoftirqd/001:43:200
32972350,4sleep13015599cyclictest02:38:291
3015599350,23cyclictest47050irq/101-ens3-Tx00:36:331
3015599350,21cyclictest0-21swapper/123:43:131
3015599350,20cyclictest0-21swapper/101:52:021
3015599350,19cyclictest0-21swapper/101:43:561
3015599343,25cyclictest18641-21apt-get23:33:091
3015599341,26cyclictest29483-21apt-get22:48:071
3015599340,20cyclictest23065-21diskmemload01:59:071
3015599340,19cyclictest0-21swapper/123:13:131
3015599332,25cyclictest19890-21apt-get01:18:101
3015599332,24cyclictest1824-21apt-get22:58:071
3015599332,24cyclictest12901-21apt-get22:13:081
30155993315,15cyclictest27960-21expr00:53:111
30155993315,15cyclictest21741-21sh02:24:211
30155993314,16cyclictest31429-21sh02:34:061
3015599331,28cyclictest4458-21latency_hist02:08:001
3015599331,26cyclictest31880-21apt-get22:53:061
3015599322,24cyclictest6063-21apt-get23:58:091
3015599322,24cyclictest10077-21apt-get01:08:101
30155993214,15cyclictest31556-21proc_pri21:43:151
30155993214,15cyclictest31553-21expr03:08:151
30155993213,16cyclictest22132-21wc22:32:551
30155993212,17cyclictest4115-21/usr/sbin/munin23:03:231
30155993212,17cyclictest23766-21mailstats01:53:251
3015599321,17cyclictest0-21swapper/123:49:101
3015599320,28cyclictest6108-21grep21:58:101
3015599320,28cyclictest29853-21/usr/sbin/munin01:28:211
3015599320,28cyclictest29853-21/usr/sbin/munin01:28:211
3015599320,18cyclictest0-21swapper/121:48:071
3015599312,22cyclictest5170-21apt-get01:03:111
30155993112,16cyclictest22921-21if_enp1s0.122:33:141
30155993112,16cyclictest16430-21expr23:28:081
3015599310,27cyclictest17987-21grep22:23:101
3015599301,25cyclictest30163-21latency_hist21:42:531
3015599301,25cyclictest11003-21apt-get23:17:591
3015599291,25cyclictest21124-21grep23:38:081
3015599291,25cyclictest21124-21grep23:38:081
3015599291,25cyclictest10607-21grep22:08:061
3015599291,24cyclictest15541-21grep22:18:091
3015599291,23cyclictest3414-21apt-get21:53:051
30149992918,6cyclictest101ktimersoftd/022:53:060
3015599281,24cyclictest8597-21sed22:03:091
3015599281,24cyclictest8597-21sed22:03:091
30149992822,3cyclictest6875-21sh02:43:140
30149992720,4cyclictest22638-21diskstats22:33:110
30149992719,5cyclictest31545-21cron22:52:550
98162261,21sleep09826-21ssh01:39:310
3014999265,14cyclictest26413-21ssh03:03:140
30149992621,3cyclictest9-21ksoftirqd/023:12:560
30149992621,3cyclictest9-21ksoftirqd/022:38:080
30149992620,3cyclictest9-21ksoftirqd/022:21:210
30149992610,7cyclictest199062sleep001:18:100
11532260,2sleep00-21swapper/000:25:140
3014999254,13cyclictest10091-21ssh01:08:110
3014999253,15cyclictest64-21kswapd001:13:100
30149992519,3cyclictest9-21ksoftirqd/023:20:430
30149992519,3cyclictest9-21ksoftirqd/022:43:530
30149992519,3cyclictest9-21ksoftirqd/002:23:240
30149992518,4cyclictest9-21ksoftirqd/021:53:430
30149992518,4cyclictest9-21ksoftirqd/021:44:270
30149992518,4cyclictest9-21ksoftirqd/002:02:230
30149992418,3cyclictest9-21ksoftirqd/023:32:270
30149992418,3cyclictest9-21ksoftirqd/022:05:110
30149992418,3cyclictest9-21ksoftirqd/022:05:110
30149992417,4cyclictest9-21ksoftirqd/023:14:400
30149992416,4cyclictest2857-21grep01:33:150
30149992416,4cyclictest2857-21grep01:33:150
3014999235,11cyclictest17364-21ssh01:48:080
30149992318,3cyclictest9-21ksoftirqd/022:32:490
30149992318,2cyclictest0-21swapper/002:41:130
30149992317,3cyclictest9-21ksoftirqd/023:40:220
30149992317,3cyclictest9-21ksoftirqd/023:40:220
30149992316,4cyclictest22494-21latency_hist00:47:580
30149992314,5cyclictest22113-21if_err_enp1s002:58:170
3014999231,2cyclictest0-21swapper/023:33:210
3014999231,18cyclictest22530-21cpuspeed_turbos01:53:150
3014999230,3cyclictest121rcu_preempt23:59:420
30149992217,3cyclictest0-21swapper/001:02:070
30149992216,3cyclictest9-21ksoftirqd/023:51:020
30149992216,3cyclictest9-21ksoftirqd/021:49:050
30149992215,4cyclictest3390-21idleruntime-cro03:13:000
30149992215,4cyclictest1975-21grep22:58:080
30149992211,9cyclictest17535-21idleruntime-cro00:42:580
30149992116,3cyclictest9-21ksoftirqd/022:25:300
30149992115,3cyclictest23065-21diskmemload02:21:400
3014999211,4cyclictest13182-21uniq22:13:110
30149992114,5cyclictest21478-21if_err_enp1s000:13:150
30149992114,4cyclictest31448-21sort01:28:270
30149992114,4cyclictest31448-21sort01:28:270
30149992114,4cyclictest24990-21ls01:23:120
30149992112,4cyclictest20418-21latency_hist00:12:570
3014999211,17cyclictest7682-21latency_hist00:32:580
3014999211,17cyclictest32582-21perl02:03:160
3014999211,17cyclictest0-21swapper/022:08:070
3014999211,17cyclictest0-21swapper/000:48:220
3014999211,17cyclictest0-21swapper/000:33:020
30149992015,3cyclictest9-21ksoftirqd/000:03:190
30149992014,3cyclictest9-21ksoftirqd/023:03:280
30149992013,4cyclictest8540-21sh01:06:030
30149992013,4cyclictest30915-21sed02:33:300
30149992012,4cyclictest23769-21cpu23:43:110
3014999201,17cyclictest0-21swapper/023:53:130
3014999201,17cyclictest0-21swapper/002:32:570
3014999201,17cyclictest0-21swapper/000:53:380
3014999201,16cyclictest101ktimersoftd/023:26:040
30149991915,2cyclictest0-21swapper/002:53:530
30149991912,4cyclictest6562-21cut21:58:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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