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2026-08-15 - 21:46
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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 Sat Aug 15, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1282721830,4sleep22802099cyclictest12:22:242
2664421780,3sleep22802099cyclictest12:04:052
1095421470,3sleep12801599cyclictest12:21:231
2809521350,5sleep22802099cyclictest12:06:102
1068911050,39ptp4l401ktimersoftd/309:22:473
309182780,1sleep30-21swapper/313:15:213
277302720,3sleep02801199cyclictest12:05:560
28025997157,7cyclictest41-21ksoftirqd/311:46:203
253972650,2sleep10-21swapper/114:16:091
253972650,2sleep10-21swapper/114:16:091
276482634,10sleep00-21swapper/009:22:360
251402620,4sleep09-21ksoftirqd/012:36:070
106891610,2ptp4l401ktimersoftd/314:51:303
4282590,2sleep20-21swapper/214:22:292
279552580,1sleep10-21swapper/114:17:221
97302570,2sleep10-21swapper/112:20:261
106891570,1ptp4l401ktimersoftd/313:35:353
106891570,1ptp4l401ktimersoftd/311:28:073
2801199561,40cyclictest0-21swapper/014:51:230
201472560,2sleep00-21swapper/014:10:420
144172550,2sleep00-21swapper/010:01:270
2801199521,20cyclictest20926-21diskmemload12:27:130
2801199521,20cyclictest20926-21diskmemload12:27:130
28025995038,5cyclictest41-21ksoftirqd/312:46:193
106891500,0ptp4l401ktimersoftd/311:54:503
105791500,5getstats46850irq/99-ens3-TxR14:33:113
105791500,4getstats2802599cyclictest14:28:103
219242490,2sleep20-21swapper/211:26:232
2801199471,24cyclictest20926-21diskmemload13:31:150
2801199470,24cyclictest20926-21diskmemload14:40:040
106891470,0ptp4l401ktimersoftd/312:34:413
106891470,0ptp4l401ktimersoftd/312:34:413
2801199460,20cyclictest0-21swapper/014:49:200
2801199450,24cyclictest20926-21diskmemload14:29:510
2801199450,19cyclictest0-21swapper/012:06:110
106891450,1ptp4l401ktimersoftd/313:45:133
28025994330,6cyclictest41-21ksoftirqd/310:11:163
2801199431,35cyclictest18447-21apt-get11:56:200
2801199422,32cyclictest5679-21apt-get12:16:210
2801199421,23cyclictest20926-21diskmemload11:49:500
2801199420,20cyclictest20926-21diskmemload14:35:320
28011994115,23cyclictest22528-21sed14:11:380
28011994115,23cyclictest22528-21sed14:11:380
2801199405,31cyclictest23265-21grep10:21:230
2801199404,28cyclictest32107-21apt-get10:41:180
2801199404,28cyclictest32107-21apt-get10:41:180
2801199402,32cyclictest22075-21apt-get13:06:200
28011994015,22cyclictest8805-21grep09:51:200
28011994015,22cyclictest13825-21/usr/sbin/munin11:11:330
28011994014,23cyclictest26565-21cut11:31:200
2801199401,35cyclictest9815-21ps11:01:240
35712390,5sleep22802099cyclictest11:41:132
28025993928,4cyclictest41-21ksoftirqd/314:06:223
28025993926,5cyclictest41-21ksoftirqd/311:11:183
2801199392,30cyclictest13516-21apt-get11:51:190
2801199391,31cyclictest6047-21apt-get13:56:210
2801199391,24cyclictest7479-21apt-get12:51:200
106891390,1ptp4l401ktimersoftd/314:38:093
106891390,1ptp4l401ktimersoftd/314:22:433
106891390,1ptp4l401ktimersoftd/314:00:153
106891390,1ptp4l401ktimersoftd/312:54:053
106891390,1ptp4l401ktimersoftd/312:45:213
106891390,0ptp4l401ktimersoftd/311:31:283
2801199382,27cyclictest4421-21apt-get10:51:170
28011993814,21cyclictest30388-21expr12:41:200
2801199381,31cyclictest26910-21apt-get13:11:190
2801199381,27cyclictest20926-21diskmemload13:17:160
28011993811,23cyclictest29506-21ptp4l-jitter09:26:250
106891380,1ptp4l401ktimersoftd/314:42:583
106891380,1ptp4l401ktimersoftd/313:55:263
106891380,1ptp4l401ktimersoftd/313:48:103
106891380,1ptp4l401ktimersoftd/313:40:433
106891380,1ptp4l401ktimersoftd/313:31:063
106891380,1ptp4l401ktimersoftd/313:22:233
106891380,1ptp4l401ktimersoftd/313:06:043
106891380,1ptp4l401ktimersoftd/312:16:493
106891380,1ptp4l401ktimersoftd/312:07:343
106891380,1ptp4l401ktimersoftd/312:02:293
106891380,1ptp4l401ktimersoftd/311:40:173
2801199372,29cyclictest12351-21apt-get12:56:190
2801199372,28cyclictest17215-21apt-get13:01:200
28011993716,18cyclictest9-21ksoftirqd/013:45:090
28011993715,19cyclictest1055-21runrttasks14:03:010
2801199371,23cyclictest12634-21ssh12:22:040
28011993712,22cyclictest2263-21sed12:11:340
28011993711,22cyclictest16980-21cat10:06:330
28011993710,23cyclictest32073-21cut11:36:240
2801199370,23cyclictest30643-21ssh13:46:450
106891370,1ptp4l401ktimersoftd/314:12:133
106891370,1ptp4l401ktimersoftd/314:12:133
106891370,1ptp4l401ktimersoftd/313:19:293
106891370,1ptp4l401ktimersoftd/312:59:333
106891370,1ptp4l401ktimersoftd/312:37:303
106891370,1ptp4l401ktimersoftd/312:27:553
106891370,1ptp4l401ktimersoftd/312:27:553
106891370,1ptp4l401ktimersoftd/312:25:383
106891370,1ptp4l401ktimersoftd/312:14:543
106891370,1ptp4l401ktimersoftd/311:58:203
106891370,1ptp4l401ktimersoftd/311:41:463
28025993631,3cyclictest41-21ksoftirqd/310:56:043
28015993617,10cyclictest47050irq/101-ens3-Tx13:56:221
2801199362,28cyclictest21344-21apt-get11:26:180
2801199361,29cyclictest25347-21apt-get12:36:210
28011993612,21cyclictest4094-21cut09:41:190
28011993611,22cyclictest25168-21expr10:26:180
2801199360,22cyclictest0-21swapper/013:36:370
106891360,1ptp4l401ktimersoftd/314:46:533
106891360,1ptp4l401ktimersoftd/310:31:223
2801199358,23cyclictest17721-21/usr/sbin/munin14:41:260
2801199353,24cyclictest0-21swapper/013:30:280
28011993513,19cyclictest20926-21diskmemload13:24:500
2801199351,27cyclictest2054-21apt-get10:46:170
2801199351,27cyclictest2054-21apt-get10:46:170
2801199350,32cyclictest2733-21ssh14:26:100
2801199341,30cyclictest21941-21grep12:31:340
2801199341,29cyclictest663-21gdbus11:21:280
2801199341,27cyclictest25702-21apt-get14:16:220
106891340,1ptp4l401ktimersoftd/314:17:513
28025993327,3cyclictest41-21ksoftirqd/310:01:043
2801199338,22cyclictest11981-21ptp4l09:56:250
2801199338,21cyclictest16830-21fschecks_time11:16:200
2801199336,23cyclictest7350-21if_enp1s0.110:56:230
28011993310,20cyclictest20926-21diskmemload12:48:100
2762723315,8sleep10-21swapper/109:22:201
106891330,1ptp4l401ktimersoftd/313:06:493
106891330,1ptp4l401ktimersoftd/310:16:313
106891330,1ptp4l401ktimersoftd/309:46:213
2801599324,17cyclictest25355-21ssh12:36:201
2801199329,20cyclictest22302-21latency_hist10:21:040
2801199328,20cyclictest18782chrt09:36:210
2801199327,22cyclictest30719-21cstates09:31:040
2801199327,22cyclictest2872-21unixbench-2d13:51:380
2801199324,25cyclictest3632-21/usr/sbin/munin11:41:370
2801199324,24cyclictest29015-21grep10:31:340
2801199322,25cyclictest19196-21snmp_o5powerctl10:11:300
28011993211,18cyclictest1055-21runrttasks09:49:240
237972320,2sleep20-21swapper/213:41:212
106891320,1ptp4l401ktimersoftd/311:21:213
106891320,1ptp4l401ktimersoftd/310:38:283
106891320,1ptp4l401ktimersoftd/309:36:243
106891320,10ptp4l401ktimersoftd/310:44:493
106891320,10ptp4l401ktimersoftd/310:44:493
106891320,0ptp4l401ktimersoftd/314:02:423
28025993126,3cyclictest41-21ksoftirqd/309:36:033
28025993125,3cyclictest41-21ksoftirqd/310:31:043
28025993125,3cyclictest41-21ksoftirqd/310:06:043
2801599314,16cyclictest31221-21taskset11:36:181
2801199311,26cyclictest12923-21/usr/sbin/munin11:06:320
2801199311,26cyclictest0-21swapper/010:36:170
272032316,10sleep20-21swapper/209:21:292
106891310,1ptp4l401ktimersoftd/311:08:013
28025993025,3cyclictest41-21ksoftirqd/310:11:033
28025993025,3cyclictest41-21ksoftirqd/309:31:033
28025993024,3cyclictest41-21ksoftirqd/309:56:043
28025993022,4cyclictest41-21ksoftirqd/311:01:283
2801599305,15cyclictest26924-21ssh13:11:201
2801599304,16cyclictest22674-21ssh14:46:221
28025992924,3cyclictest41-21ksoftirqd/311:16:233
2802099292,2cyclictest121rcu_preempt12:51:362
28020992922,4cyclictest33-21ksoftirqd/210:01:172
2802099291,3cyclictest121rcu_preempt14:15:472
2802099291,3cyclictest121rcu_preempt14:15:472
2801599294,15cyclictest28257-21ssh12:06:181
28025992824,2cyclictest41-21ksoftirqd/310:51:053
28025992824,2cyclictest41-21ksoftirqd/310:51:053
28025992823,3cyclictest41-21ksoftirqd/310:56:223
2802099284,6cyclictest1055-21runrttasks13:50:592
2802099282,4cyclictest121rcu_preempt12:28:562
2802099282,4cyclictest121rcu_preempt12:28:562
28020992821,4cyclictest33-21ksoftirqd/211:35:352
28015992822,3cyclictest25-21ksoftirqd/113:01:211
28015992822,3cyclictest25-21ksoftirqd/111:51:061
28020992721,3cyclictest33-21ksoftirqd/213:36:282
28020992720,4cyclictest33-21ksoftirqd/214:52:442
28015992721,3cyclictest25-21ksoftirqd/113:46:101
2802099261,21cyclictest6523-21grep13:56:262
2801599264,13cyclictest7874-21ssh14:31:221
29062251,3sleep22926-21diskstats12:46:222
28025992520,3cyclictest41-21ksoftirqd/310:21:233
28025992520,3cyclictest41-21ksoftirqd/309:46:043
28020992518,4cyclictest33-21ksoftirqd/214:02:132
2801599259,5cyclictest18976-21cstates13:36:221
2801599253,13cyclictest3035-21ssh14:26:231
28015992514,9cyclictest2834350kworker/1:513:32:381
28020992418,3cyclictest33-21ksoftirqd/213:35:072
28020992418,3cyclictest33-21ksoftirqd/211:08:362
28020992418,3cyclictest33-21ksoftirqd/209:56:192
28020992418,3cyclictest33-21ksoftirqd/209:47:372
28020992418,3cyclictest33-21ksoftirqd/209:44:592
28020992418,3cyclictest33-21ksoftirqd/209:38:012
28020992417,4cyclictest33-21ksoftirqd/211:12:142
28020992417,4cyclictest13959-21cat12:56:362
28020992416,5cyclictest20889-21tr10:16:222
2801599244,18cyclictest14360-21grep11:11:221
2801599242,19cyclictest19783-21tail11:56:301
28015992417,4cyclictest25-21ksoftirqd/110:03:521
28015992416,6cyclictest25-21ksoftirqd/112:54:131
28015992415,5cyclictest19830-21latency_hist12:31:071
28015992415,5cyclictest19830-21latency_hist12:31:071
2801599241,20cyclictest12564-21snmp_o5powerctl14:01:361
2802099233,12cyclictest8338-1kworker/u9:213:26:212
2802099232,7cyclictest31306-21apt-get09:31:152
28020992318,3cyclictest33-21ksoftirqd/209:55:522
28020992317,3cyclictest33-21ksoftirqd/210:56:422
28020992316,4cyclictest33-21ksoftirqd/213:55:192
28020992316,4cyclictest33-21ksoftirqd/213:10:582
2801599232,11cyclictest30198-21ssh12:41:191
28015992317,3cyclictest25-21ksoftirqd/110:20:081
28015992317,3cyclictest25-21ksoftirqd/110:06:081
28015992316,4cyclictest25-21ksoftirqd/111:05:511
2801599231,4cyclictest9718-21snmp_o5powerctl09:51:301
2801599231,3cyclictest19194-21snmp_o5powerctl10:11:281
2801599231,3cyclictest121rcu_preempt12:34:151
2801599231,3cyclictest121rcu_preempt12:34:151
2802099228,12cyclictest33-21ksoftirqd/209:28:432
28020992216,3cyclictest7045-21find12:16:332
28020992216,3cyclictest33-21ksoftirqd/214:42:282
28020992216,3cyclictest33-21ksoftirqd/210:07:142
28020992215,4cyclictest33-21ksoftirqd/210:51:392
28020992214,4cyclictest20926-21diskmemload13:21:202
2801599228,11cyclictest4511-21sh12:46:411
28015992217,3cyclictest25-21ksoftirqd/114:21:191
28015992216,3cyclictest25-21ksoftirqd/110:31:131
28015992216,3cyclictest25-21ksoftirqd/110:24:351
28015992215,4cyclictest17256-21processes14:06:321
28015992215,4cyclictest1372-21tr09:36:171
2801599221,4cyclictest18312-21hddtemp_smartct14:41:271
28015992213,5cyclictest22332-21latency11:26:251
2801599221,19cyclictest0-21swapper/110:46:171
2801599221,19cyclictest0-21swapper/110:46:171
2801599221,18cyclictest0-21swapper/113:26:251
2801599221,18cyclictest0-21swapper/109:26:151
2802099219,7cyclictest8633-21apt-get11:46:202
28020992115,3cyclictest33-21ksoftirqd/211:20:262
28020992115,3cyclictest33-21ksoftirqd/210:46:292
28020992115,3cyclictest33-21ksoftirqd/210:46:292
28020992115,3cyclictest33-21ksoftirqd/210:32:442
28020992115,3cyclictest31124-21/usr/sbin/munin11:36:202
28020992114,4cyclictest9119-21sh14:31:322
28020992114,4cyclictest47150irq/102-ens3-Tx14:36:332
28020992114,4cyclictest28365-21sh12:38:402
28020992114,4cyclictest18787-21/usr/sbin/munin11:21:232
28020992113,4cyclictest25797-21cpuspeed_turbos14:16:232
28020992112,6cyclictest25852-1kworker/u9:213:16:202
2801599217,11cyclictest2555-21sendmail_mailtr13:51:321
2801599211,4cyclictest1055-21runrttasks12:57:161
28015992114,4cyclictest12858-21/usr/sbin/munin14:36:341
28015992114,4cyclictest11764-21missed_timers09:56:231
28015992113,5cyclictest20926-21diskmemload13:06:331
2801599211,18cyclictest0-21swapper/109:46:241
2801599211,17cyclictest0-21swapper/111:41:201
2801599210,4cyclictest6744-21ssh13:22:491
2802099205,3cyclictest121rcu_preempt12:41:302
28020992014,3cyclictest5333-21sh14:27:292
28020992014,3cyclictest3181-21sh12:12:362
28020992014,3cyclictest22692-21cpuspeed_turbos10:21:182
28020992014,3cyclictest15933-21basename14:06:212
2802099201,3cyclictest21901-21ssh11:59:212
28020992013,4cyclictest9423-21df_inode11:01:202
28020992013,4cyclictest31138-21switchtime10:36:332
28020992013,4cyclictest29831-21sh13:13:282
28020992013,4cyclictest24632-21sh14:46:522
28020992013,4cyclictest19752-21seq10:14:072
28020992013,4cyclictest13749-21expr11:51:202
28020992013,4cyclictest1317-21unixbench_singl10:41:342
28020992013,4cyclictest1317-21unixbench_singl10:41:342
2802099201,16cyclictest19347-21ssh13:02:082
2801599207,3cyclictest23839-21cstates13:41:221
28015992015,3cyclictest26169-21/usr/sbin/munin11:31:261
28015992014,4cyclictest23271-21/usr/sbin/munin12:01:211
28015992014,3cyclictest6729-21/usr/sbin/munin10:56:241
28015992014,3cyclictest5074-21timedrift09:41:311
28015992014,3cyclictest26075-21open_inodes10:26:251
28015992014,3cyclictest16825-21fschecks_time11:16:201
2801599201,3cyclictest31079-21snmp_o5powerctl10:36:291
2801599201,3cyclictest16474-21ssh11:53:311
2801599201,3cyclictest0-21swapper/111:21:301
28015992013,4cyclictest892-21ptp4l10:41:271
28015992013,4cyclictest892-21ptp4l10:41:271
28015992013,4cyclictest4342-21/usr/sbin/munin10:51:211
2802099191,15cyclictest21889-21snmp_o5powerctl12:31:322
2802099191,15cyclictest21889-21snmp_o5powerctl12:31:322
28015991913,3cyclictest30777-21tune2fs09:31:041
2801599191,16cyclictest0-21swapper/114:54:231
2801599191,16cyclictest0-21swapper/112:12:281
2801599190,17cyclictest0-21swapper/113:16:111
2802099184,8cyclictest24975-21apt-get10:26:162
28015991811,4cyclictest12061-21awk11:06:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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