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2026-04-02 - 11:50
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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 Thu Apr 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911040,33ptp4l401ktimersoftd/320:06:113
305982710,2sleep10-21swapper/100:31:281
141442680,3sleep022451-21diskmemload23:41:280
206072590,1sleep20-21swapper/223:14:482
248162580,4sleep224584-21sh23:51:342
156822560,2sleep20-21swapper/200:47:592
2911099558,11cyclictest18334-21grep00:51:323
2909899550,3cyclictest25228-21ssh22:12:341
2911099523,12cyclictest27296-21ls23:21:323
2911099522,11cyclictest15950-21awk20:46:343
29104995240,6cyclictest33-21ksoftirqd/221:06:242
2911099513,11cyclictest32071-21munin-node20:16:123
2911099512,11cyclictest7393-21grep00:06:383
2911099511,13cyclictest14544-21gltestperf23:41:313
224052510,2sleep20-21swapper/201:26:572
224052510,2sleep20-21swapper/201:26:572
2911099502,12cyclictest2290-21sed21:26:303
2911099502,11cyclictest5863-21latency_hist00:06:163
2911099501,11cyclictest25415-21wc23:51:433
2911099501,10cyclictest27712-21latency_hist01:01:173
29104995037,6cyclictest33-21ksoftirqd/201:21:282
2911099498,6cyclictest30366-21timerandwakeup21:16:403
2911099492,10cyclictest4854-21cron20:26:113
2911099491,11cyclictest2917-21cat00:36:173
2909899499,19cyclictest1055-21runrttasks22:42:391
288942494,33sleep20-21swapper/220:10:092
2911099487,8cyclictest24904-21irqrtprio21:06:313
2911099482,11cyclictest2240-21ssh22:21:443
2909899480,4cyclictest3222-21ssh00:01:551
2911099477,7cyclictest2620-21cp20:21:113
2911099477,7cyclictest20140-21latency_hist22:06:133
2911099476,6cyclictest31442-21munin-run20:16:103
29104994736,6cyclictest33-21ksoftirqd/200:31:282
2909899470,5cyclictest0-21swapper/101:27:141
2909899470,5cyclictest0-21swapper/101:27:141
2911099465,7cyclictest31856-21taskset23:26:263
2911099461,16cyclictest20160-21apt-key01:26:183
2911099461,16cyclictest20160-21apt-key01:26:183
2911099461,10cyclictest8810-21latency_hist23:36:153
2911099461,10cyclictest8810-21latency_hist23:36:153
2909899460,4cyclictest27507-21ssh23:54:461
2909899460,3cyclictest9057-21ssh00:08:311
74342450,1sleep10-21swapper/120:31:111
2911099458,7cyclictest23450-21expr23:16:443
2911099452,15cyclictest21666-21irqrtprio00:21:343
2911099451,10cyclictest12102-21sed01:16:463
2911099450,12cyclictest26317-21mailstats22:46:373
2909899451,36cyclictest10454-21apt-get01:16:301
2911099448,7cyclictest16490-21cut21:56:323
2911099441,10cyclictest8721-21expr21:41:253
2909899440,3cyclictest2506-21taskset23:28:511
2911099436,7cyclictest20936-21irqstats22:41:323
2911099434,6cyclictest0-21swapper/322:11:133
2911099432,9cyclictest2023-21ssh01:40:503
29104994312,4cyclictest33-21ksoftirqd/200:41:172
2909899430,3cyclictest233-21systemd-journal21:12:251
2911099427,5cyclictest41-21ksoftirqd/323:49:113
2911099423,5cyclictest0-21swapper/323:06:143
29104994233,4cyclictest33-21ksoftirqd/220:16:212
29104994230,6cyclictest33-21ksoftirqd/221:16:242
2909899421,4cyclictest26701-21/usr/sbin/munin01:31:411
2911099417,4cyclictest41-21ksoftirqd/322:17:423
2911099407,5cyclictest41-21ksoftirqd/322:55:013
2911099407,4cyclictest41-21ksoftirqd/323:38:413
2911099407,4cyclictest41-21ksoftirqd/323:38:413
2911099401,7cyclictest7859-21ssh22:27:573
29104994029,6cyclictest33-21ksoftirqd/221:46:242
29104994029,6cyclictest33-21ksoftirqd/221:46:242
29104994029,5cyclictest33-21ksoftirqd/220:21:222
29104994027,10cyclictest33-21ksoftirqd/223:46:312
29104994024,5cyclictest33-21ksoftirqd/200:56:172
2909899403,29cyclictest29795-21apt-get22:51:261
2909899402,32cyclictest15639-21apt-get21:56:251
2909899402,31cyclictest5302-21apt-get22:26:251
2909899401,3cyclictest12977-21sh23:40:021
2909899401,3cyclictest12977-21sh23:40:021
106891400,1ptp4l401ktimersoftd/301:12:493
2911099398,5cyclictest41-21ksoftirqd/323:57:533
2911099396,4cyclictest41-21ksoftirqd/300:44:493
2911099392,5cyclictest0-21swapper/300:11:313
106891390,1ptp4l401ktimersoftd/300:31:073
2911099381,9cyclictest12529-21apt-get00:46:203
2910499389,6cyclictest33-21ksoftirqd/201:41:182
2910499388,4cyclictest33-21ksoftirqd/220:41:112
2910499384,5cyclictest33-21ksoftirqd/221:01:122
29104993827,8cyclictest33-21ksoftirqd/222:56:432
29104993825,10cyclictest33-21ksoftirqd/222:26:422
29104993814,22cyclictest33-21ksoftirqd/223:01:332
29098993814,21cyclictest11217-21/usr/sbin/munin20:36:311
106891380,1ptp4l401ktimersoftd/322:40:093
106891380,1ptp4l401ktimersoftd/322:15:533
106891380,1ptp4l401ktimersoftd/301:26:043
106891380,1ptp4l401ktimersoftd/301:06:523
2911099378,5cyclictest41-21ksoftirqd/300:20:153
2911099375,7cyclictest26858-21fschecks_time21:11:263
2910499374,6cyclictest33-21ksoftirqd/200:01:152
29104993732,3cyclictest33-21ksoftirqd/222:01:132
29104993725,3cyclictest33-21ksoftirqd/201:11:382
2909899378,19cyclictest4508-21sh22:25:351
2909899373,27cyclictest15082-21apt-get22:36:251
2909899372,29cyclictest3789-21apt-get21:31:241
2909899372,29cyclictest20390-21apt-get22:06:251
29098993710,24cyclictest13127-21apt-get00:46:271
2909899370,4cyclictest514-21fschecks_time20:16:251
106891370,1ptp4l401ktimersoftd/322:31:153
106891370,1ptp4l401ktimersoftd/320:41:283
106891370,1ptp4l401ktimersoftd/301:31:413
106891370,1ptp4l401ktimersoftd/301:03:063
106891370,1ptp4l401ktimersoftd/300:38:523
29104993631,3cyclictest33-21ksoftirqd/221:06:122
29104993627,5cyclictest33-21ksoftirqd/200:56:292
2909899364,28cyclictest12736-21apt-key00:46:171
2909899363,26cyclictest18023-21apt-get22:01:241
2909899362,28cyclictest7175-21apt-get23:01:261
2909899362,28cyclictest19376-21apt-get20:56:241
2909899361,30cyclictest0-21swapper/101:11:261
2909899360,5cyclictest14733-21ssh23:08:051
2909899360,4cyclictest4552-21sensors00:36:391
2909899360,4cyclictest19667-21ssh01:26:001
2909899360,3cyclictest13743-21grep21:51:281
2878023617,8sleep00-21swapper/020:08:380
106891360,1ptp4l401ktimersoftd/323:06:563
106891360,1ptp4l401ktimersoftd/321:01:073
106891360,1ptp4l401ktimersoftd/320:51:403
2910499358,4cyclictest33-21ksoftirqd/200:21:342
29104993529,3cyclictest33-21ksoftirqd/223:41:152
29104993529,3cyclictest33-21ksoftirqd/223:41:152
29104993524,5cyclictest33-21ksoftirqd/221:26:232
29104993523,3cyclictest33-21ksoftirqd/220:46:342
2909899353,24cyclictest8537-21apt-get21:41:241
2909899352,29cyclictest0-21swapper/123:56:271
2909899352,27cyclictest7526-21apt-get20:31:221
2909899352,27cyclictest31479-21apt-get21:21:241
2909899352,27cyclictest14647-21apt-get20:46:231
29098993515,17cyclictest8140-21sh23:35:071
29098993515,17cyclictest8140-21sh23:35:071
2909899351,4cyclictest28221-21tune2fs22:16:311
2909899350,4cyclictest6805-21irqrtprio21:36:311
2909899350,4cyclictest20542-21taskset00:52:561
2909899350,3cyclictest13569-21ssh00:12:511
2909899350,2cyclictest0-21swapper/123:25:421
106891350,1ptp4l401ktimersoftd/322:57:403
2910499347,4cyclictest33-21ksoftirqd/222:51:352
29104993429,3cyclictest33-21ksoftirqd/222:26:132
29104993429,3cyclictest33-21ksoftirqd/201:09:492
29104993428,4cyclictest33-21ksoftirqd/223:26:142
29104993428,3cyclictest33-21ksoftirqd/220:16:112
29104993428,3cyclictest33-21ksoftirqd/201:36:182
29104993421,4cyclictest33-21ksoftirqd/200:06:282
2909899342,25cyclictest12278-21apt-get20:41:221
2909899340,5cyclictest4104-21rm01:09:441
2909899340,4cyclictest27230-21rm22:47:331
2909899340,4cyclictest22312-21snmp_o5powerctl00:21:391
2909899340,4cyclictest16933-21acpi23:11:251
2909899340,4cyclictest14032-21/usr/sbin/munin23:41:341
2909899340,4cyclictest12043-21ssh22:31:441
2909899340,3cyclictest30106-21irqrtprio20:11:291
2909899340,3cyclictest26077-21ssh23:20:501
2909899340,3cyclictest2154-21ssh22:56:211
2909899340,3cyclictest17985-21ssh00:17:031
316562330,2sleep00-21swapper/023:58:310
2910499338,7cyclictest33-21ksoftirqd/200:46:172
2910499337,4cyclictest33-21ksoftirqd/223:36:152
2910499337,4cyclictest33-21ksoftirqd/223:36:152
2910499336,4cyclictest33-21ksoftirqd/200:26:332
2910499336,3cyclictest33-21ksoftirqd/222:16:332
29104993328,3cyclictest33-21ksoftirqd/222:11:132
29104993327,3cyclictest33-21ksoftirqd/222:41:142
29104993327,3cyclictest33-21ksoftirqd/222:11:272
29104993319,10cyclictest33-21ksoftirqd/221:36:292
29104993318,3cyclictest33-21ksoftirqd/220:26:252
29104993317,6cyclictest33-21ksoftirqd/201:21:172
2910499331,6cyclictest33-21ksoftirqd/200:16:462
29104993316,8cyclictest33-21ksoftirqd/223:26:432
29098993313,17cyclictest2461-21cat21:26:321
2909899331,27cyclictest2264-21apt-get20:21:151
2909899330,5cyclictest27329-21ssh01:00:481
2909899330,4cyclictest30269-21ssh01:02:241
2909899330,2cyclictest0-21swapper/121:46:391
2909899330,2cyclictest0-21swapper/121:46:391
2909899330,2cyclictest0-21swapper/120:51:301
2911099326,5cyclictest41-21ksoftirqd/321:53:473
2910499326,4cyclictest33-21ksoftirqd/221:11:262
2910499326,4cyclictest33-21ksoftirqd/200:01:312
2910499326,3cyclictest33-21ksoftirqd/220:51:422
2910499325,8cyclictest33-21ksoftirqd/222:06:132
29104993227,3cyclictest33-21ksoftirqd/222:46:312
29104993227,3cyclictest33-21ksoftirqd/222:41:262
29104993227,3cyclictest33-21ksoftirqd/221:21:332
29104993226,3cyclictest33-21ksoftirqd/223:46:152
29104993221,3cyclictest33-21ksoftirqd/221:31:272
2909899320,4cyclictest22024-21diskstats21:01:261
2909899320,2cyclictest0-21swapper/123:46:541
2909899320,2cyclictest0-21swapper/101:40:331
2909899320,2cyclictest0-21swapper/100:27:391
29093993225,3cyclictest9-21ksoftirqd/020:16:150
106891320,1ptp4l401ktimersoftd/321:36:403
29104993126,3cyclictest33-21ksoftirqd/221:41:282
29104993125,3cyclictest33-21ksoftirqd/201:01:382
29104993125,3cyclictest33-21ksoftirqd/200:16:162
29104993120,3cyclictest33-21ksoftirqd/223:17:002
2910499311,6cyclictest33-21ksoftirqd/222:31:302
2910499309,3cyclictest33-21ksoftirqd/220:31:212
29104993025,3cyclictest33-21ksoftirqd/220:46:112
29104993023,3cyclictest33-21ksoftirqd/223:06:262
2909899306,21cyclictest306912chrt21:18:081
2909899300,4cyclictest25477-21snmp_o5powerctl21:06:381
2889822910,9sleep10-21swapper/120:10:121
29104992823,3cyclictest33-21ksoftirqd/221:51:252
2911099278,7cyclictest41-21ksoftirqd/321:21:303
2911099276,6cyclictest17912-21irqstats23:11:333
2911099276,6cyclictest11151-21df21:46:253
2911099276,6cyclictest11151-21df21:46:253
2911099275,7cyclictest12121-21latency_hist20:41:113
29093992721,3cyclictest9-21ksoftirqd/021:58:210
29093992721,3cyclictest9-21ksoftirqd/021:53:360
29093992721,3cyclictest9-21ksoftirqd/000:16:310
261222260,1sleep00-21swapper/000:58:450
2911099257,8cyclictest41-21ksoftirqd/320:31:503
2911099257,7cyclictest41-21ksoftirqd/321:04:383
2909399254,14cyclictest22878-21ssh22:11:250
29093992519,3cyclictest9-21ksoftirqd/021:07:390
29093992516,5cyclictest9-21ksoftirqd/021:21:250
2909399244,13cyclictest9210-21ssh23:36:260
2909399244,13cyclictest9210-21ssh23:36:260
29093992418,3cyclictest9-21ksoftirqd/021:04:240
29093992418,3cyclictest9-21ksoftirqd/020:49:090
29093992418,3cyclictest3246-21head20:21:250
2909399234,12cyclictest24904-21ssh22:46:260
2909399233,12cyclictest337-21ssh22:21:250
29093992318,3cyclictest9-21ksoftirqd/021:26:230
29093992318,3cyclictest9-21ksoftirqd/021:16:380
29093992317,3cyclictest9-21ksoftirqd/021:47:060
29093992317,3cyclictest9-21ksoftirqd/021:47:060
29093992317,3cyclictest9-21ksoftirqd/021:13:260
29093992317,3cyclictest9-21ksoftirqd/020:15:330
29093992316,4cyclictest9-21ksoftirqd/022:07:050
2909399230,2cyclictest121rcu_preempt23:53:460
106891230,1ptp4l401ktimersoftd/321:31:293
29093992217,3cyclictest9-21ksoftirqd/000:12:160
29093992216,3cyclictest9-21ksoftirqd/021:43:090
29093992216,3cyclictest9-21ksoftirqd/020:57:160
2909399221,3cyclictest22451-21diskmemload01:09:580
2909399221,3cyclictest22451-21diskmemload01:05:560
2909399221,3cyclictest0-21swapper/001:36:320
2909399221,19cyclictest0-21swapper/022:04:490
2909399221,18cyclictest22451-21diskmemload00:33:410
2909399221,18cyclictest0-21swapper/020:45:560
2909399221,18cyclictest0-21swapper/000:49:210
2909399220,3cyclictest111742sleep023:05:230
29093992117,2cyclictest0-21swapper/022:51:270
29093992116,3cyclictest9-21ksoftirqd/020:37:040
29093992115,3cyclictest9-21ksoftirqd/020:31:120
29093992115,3cyclictest7489-21snmp_o5powerctl21:36:370
29093992114,4cyclictest9-21ksoftirqd/023:31:000
29093992114,4cyclictest9004-21ssh22:29:540
29093992114,4cyclictest5276-21cpuspeed_turbos20:26:230
2909399211,2cyclictest0-21swapper/020:56:000
2909399211,2cyclictest0-21swapper/000:38:490
2909399211,17cyclictest22451-21diskmemload22:20:340
29093992111,6cyclictest9-21ksoftirqd/023:31:260
29093992111,6cyclictest9-21ksoftirqd/023:31:260
233362210,2sleep00-21swapper/023:16:440
2909399203,15cyclictest6806-21wc23:01:150
29093992015,3cyclictest9-21ksoftirqd/001:32:130
29093992015,3cyclictest22451-21diskmemload22:35:100
29093992014,4cyclictest30661-21ssh23:25:150
29093992014,3cyclictest22451-21diskmemload22:45:380
29093992014,3cyclictest16909-21acpi23:11:250
2909399201,3cyclictest24089-21ssh00:24:050
2909399201,3cyclictest121rcu_preempt22:36:260
29093992013,4cyclictest25987-21expr00:26:280
29093992013,4cyclictest22451-21diskmemload23:47:350
29093992013,4cyclictest22451-21diskmemload00:01:170
29093992012,5cyclictest3934-21grep21:31:250
2909399201,17cyclictest0-21swapper/023:10:150
2909399201,17cyclictest0-21swapper/000:53:050
2909399201,17cyclictest0-21swapper/000:08:400
2909399201,16cyclictest8898-21ssh01:14:220
2909399201,16cyclictest0-21swapper/000:41:210
2909399200,18cyclictest0-21swapper/001:18:020
29093991912,4cyclictest22451-21diskmemload01:21:230
225052190,5sleep02909399cyclictest01:27:070
225052190,5sleep02909399cyclictest01:27:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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