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2026-08-03 - 09:41
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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 Aug 03, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
728622670,5sleep20-21swapper/221:14:312
2277021830,3sleep1856099cyclictest01:19:141
1991921470,3sleep2856999cyclictest21:39:302
1068911040,4ptp4l401ktimersoftd/321:14:153
8569996511,12cyclictest28883-21/usr/sbin/munin00:19:292
184522640,2sleep30-21swapper/301:47:023
8569996313,19cyclictest3634-21ssh23:54:032
281752630,3sleep00-21swapper/023:44:380
81182624,9sleep00-21swapper/021:14:500
147562620,1sleep20-21swapper/200:04:312
8569996115,12cyclictest1808-21processes01:29:372
8569995911,17cyclictest24574-21snmp_o5powerctl01:19:422
77612590,3sleep3857599cyclictest02:41:313
8569995811,16cyclictest12516-21ssh00:34:372
856999569,12cyclictest4207-21/usr/sbin/munin23:54:262
8569995610,12cyclictest23528-21sed21:49:102
856999559,12cyclictest9749-21/usr/sbin/munin02:44:412
856999559,12cyclictest21572-21latency_hist23:39:122
8569995510,11cyclictest9403-21if_ens321:19:282
856999549,12cyclictest16658-21/usr/sbin/munin00:39:302
8569995410,20cyclictest6495-21sed02:39:462
8569995410,13cyclictest15569-21snmp_o5powerctl21:29:332
8569995410,12cyclictest31881-21grep23:14:262
856999539,12cyclictest28425-21snmp_o5powerctl23:04:402
856999529,18cyclictest6522-21sed22:19:302
856999529,17cyclictest16593-21/usr/sbin/munin01:44:372
8569995210,9cyclictest23241-21snmp_o5powerctl23:39:382
856999518,12cyclictest10202-21/usr/sbin/munin22:29:282
856999507,11cyclictest11211-21runrttasks01:06:242
209472500,2sleep00-21swapper/001:16:160
856999499,16cyclictest24666-21ssh00:47:352
856999489,17cyclictest32077-21taskset02:00:072
106891480,0ptp4l401ktimersoftd/302:07:073
8560994638,4cyclictest25-21ksoftirqd/100:44:271
857599456,12cyclictest20186-21ssh01:49:263
857599456,12cyclictest20186-21ssh01:49:263
106891450,0ptp4l401ktimersoftd/323:19:583
8569994412,9cyclictest7635-21ssh01:03:402
8560994336,3cyclictest25-21ksoftirqd/123:24:241
8560994335,4cyclictest25-21ksoftirqd/102:09:271
8560994234,4cyclictest25-21ksoftirqd/123:34:281
856999417,11cyclictest30955-21ssh23:48:462
106891410,1ptp4l401ktimersoftd/300:39:513
856999408,10cyclictest0-21swapper/223:34:042
8560994034,4cyclictest25-21ksoftirqd/100:34:281
106891400,1ptp4l401ktimersoftd/323:57:363
106891400,1ptp4l401ktimersoftd/300:35:483
8569993913,12cyclictest24714-21awk00:14:322
8569993913,12cyclictest24714-21awk00:14:322
106891390,1ptp4l401ktimersoftd/301:09:193
8569993811,17cyclictest2907-21ssh00:24:392
8560993831,4cyclictest25-21ksoftirqd/100:24:261
8553993819,12cyclictest1477-21diskmemload01:39:270
106891380,1ptp4l401ktimersoftd/323:52:483
106891380,1ptp4l401ktimersoftd/323:39:453
106891380,1ptp4l401ktimersoftd/323:38:093
106891380,1ptp4l401ktimersoftd/323:26:203
106891380,1ptp4l401ktimersoftd/302:45:523
106891380,1ptp4l401ktimersoftd/302:22:123
106891380,1ptp4l401ktimersoftd/302:16:583
106891380,1ptp4l401ktimersoftd/302:11:293
106891380,1ptp4l401ktimersoftd/301:54:243
106891380,1ptp4l401ktimersoftd/301:54:243
106891380,1ptp4l401ktimersoftd/301:43:223
106891380,1ptp4l401ktimersoftd/301:35:563
106891380,1ptp4l401ktimersoftd/301:23:063
106891380,1ptp4l401ktimersoftd/300:48:133
106891380,1ptp4l401ktimersoftd/300:24:423
106891380,1ptp4l401ktimersoftd/300:09:453
106891380,1ptp4l401ktimersoftd/300:03:253
856999377,20cyclictest0-21swapper/222:44:262
8569993716,18cyclictest27871-21grep02:29:312
8569993716,18cyclictest10268-21/usr/sbin/munin23:59:342
8560993730,4cyclictest25-21ksoftirqd/100:04:131
8560993728,6cyclictest25-21ksoftirqd/101:19:271
106891370,1ptp4l401ktimersoftd/302:00:553
106891370,1ptp4l401ktimersoftd/301:31:153
106891370,1ptp4l401ktimersoftd/301:15:353
106891370,1ptp4l401ktimersoftd/301:04:403
106891370,1ptp4l401ktimersoftd/301:01:593
106891370,1ptp4l401ktimersoftd/300:51:303
106891370,1ptp4l401ktimersoftd/300:07:143
856999367,10cyclictest7805-21ssh01:35:392
8569993619,12cyclictest0-21swapper/202:19:272
8560993631,3cyclictest25-21ksoftirqd/102:24:161
106891360,1ptp4l401ktimersoftd/322:14:533
106891360,1ptp4l401ktimersoftd/302:32:203
106891360,13ptp4l401ktimersoftd/300:20:003
106891360,0ptp4l401ktimersoftd/302:35:243
106891360,0ptp4l401ktimersoftd/300:57:033
856999359,11cyclictest0-21swapper/200:09:562
8569993512,9cyclictest3340-21snmp_o5powerctl23:19:372
106891350,2ptp4l29328-21kworker/3:223:14:423
106891350,0ptp4l401ktimersoftd/302:25:043
856999349,11cyclictest1477-21diskmemload01:53:192
856999349,11cyclictest1477-21diskmemload01:53:192
856999348,11cyclictest1477-21diskmemload01:28:232
8560993419,8cyclictest241ktimersoftd/123:49:241
106891340,1ptp4l401ktimersoftd/300:15:533
106891340,1ptp4l401ktimersoftd/300:15:533
106891340,0ptp4l401ktimersoftd/301:28:543
856999339,12cyclictest2139-21switchtime22:09:402
856999336,11cyclictest0-21swapper/200:29:332
8569993310,8cyclictest26560-21snmp_o5powerctl01:54:412
8569993310,8cyclictest26560-21snmp_o5powerctl01:54:412
8569993310,8cyclictest13189-21snmp_o5powerctl21:24:362
8560993328,3cyclictest25-21ksoftirqd/122:34:111
8560993328,3cyclictest25-21ksoftirqd/102:09:151
8560993320,7cyclictest25-21ksoftirqd/121:24:211
106891330,2ptp4l29328-21kworker/3:222:03:063
106891330,1ptp4l401ktimersoftd/323:31:493
106891330,1ptp4l401ktimersoftd/321:49:353
88052320,3sleep1856099cyclictest00:30:401
856999327,11cyclictest13510-21cstates01:09:292
856999327,11cyclictest0-21swapper/223:24:392
856999326,10cyclictest0-21swapper/200:57:532
8569993215,14cyclictest21320-21snmp_o5powerctl22:49:372
8569993212,17cyclictest14063-21snmp_o5powerctl02:14:452
8569993212,16cyclictest24202-21wc02:24:462
8560993227,3cyclictest25-21ksoftirqd/100:24:131
8560993226,3cyclictest25-21ksoftirqd/123:14:121
106891320,1ptp4l401ktimersoftd/322:20:443
106891320,1ptp4l401ktimersoftd/321:24:283
106891320,1ptp4l401ktimersoftd/321:23:343
856999319,19cyclictest0-21swapper/200:49:282
8569993117,10cyclictest0-21swapper/201:14:262
8569993116,10cyclictest0-21swapper/222:39:242
8569993114,13cyclictest26863-21cut21:54:292
8569993113,7cyclictest15106-21ls22:39:112
8560993126,3cyclictest25-21ksoftirqd/121:19:091
8560993125,3cyclictest25-21ksoftirqd/102:34:161
8560993119,6cyclictest25-21ksoftirqd/122:19:221
8569993016,11cyclictest3261-21sed02:04:342
8569993016,10cyclictest0-21swapper/221:49:192
8569993012,14cyclictest22828-21hddtemp_smartct22:54:292
8569993012,14cyclictest16857-21df_inode21:34:252
8569993011,17cyclictest0-21swapper/202:09:282
8560993025,3cyclictest25-21ksoftirqd/122:44:111
8560993025,3cyclictest25-21ksoftirqd/102:04:161
8560993024,4cyclictest25-21ksoftirqd/102:49:171
8560993024,3cyclictest25-21ksoftirqd/100:54:261
8560993022,5cyclictest25-21ksoftirqd/123:09:121
106891300,0ptp4l401ktimersoftd/322:55:563
106891300,0ptp4l401ktimersoftd/322:32:443
8569992914,11cyclictest3195-21/usr/sbin/munin22:14:242
8569992911,15cyclictest0-21swapper/222:59:252
8560992924,3cyclictest25-21ksoftirqd/123:24:121
8560992924,3cyclictest25-21ksoftirqd/102:29:161
8560992924,3cyclictest25-21ksoftirqd/102:14:341
8560992923,4cyclictest25-21ksoftirqd/123:59:121
8560992923,3cyclictest25-21ksoftirqd/100:39:271
8560992922,4cyclictest25-21ksoftirqd/123:44:261
8560992913,6cyclictest25-21ksoftirqd/102:39:281
106891290,1ptp4l401ktimersoftd/321:58:203
106891290,0ptp4l401ktimersoftd/323:05:543
8569992816,9cyclictest32516-21awk22:04:412
8569992815,10cyclictest1376-21awk02:34:402
8569992814,10cyclictest0-21swapper/223:09:242
8569992812,13cyclictest13947-21ssh01:42:442
8569992811,14cyclictest8869-21memory22:24:302
8569992811,14cyclictest8869-21memory22:24:302
8560992823,3cyclictest25-21ksoftirqd/122:14:241
8560992823,3cyclictest25-21ksoftirqd/121:24:091
8560992823,3cyclictest25-21ksoftirqd/101:24:311
8560992822,4cyclictest25-21ksoftirqd/101:44:281
8560992822,3cyclictest25-21ksoftirqd/100:09:131
8560992816,10cyclictest25-21ksoftirqd/101:04:441
78302284,8sleep341-21ksoftirqd/300:29:393
708622821,3sleep09-21ksoftirqd/023:56:350
119232280,2sleep00-21swapper/022:29:390
106891280,1ptp4l401ktimersoftd/321:42:573
8569992715,8cyclictest28531-21sort21:59:232
8560992722,3cyclictest25-21ksoftirqd/122:59:301
8560992722,3cyclictest25-21ksoftirqd/101:49:251
8560992722,3cyclictest25-21ksoftirqd/101:49:251
8560992722,3cyclictest25-21ksoftirqd/101:39:311
8560992721,3cyclictest25-21ksoftirqd/121:54:241
8560992721,3cyclictest25-21ksoftirqd/101:34:441
8560992720,4cyclictest25-21ksoftirqd/122:34:241
106891270,11ptp4l401ktimersoftd/322:35:273
85992260,4sleep0101ktimersoftd/001:37:000
8575992620,3cyclictest41-21ksoftirqd/321:33:103
856099262,3cyclictest121rcu_preempt21:34:341
8560992620,3cyclictest25-21ksoftirqd/122:44:411
8560992620,3cyclictest25-21ksoftirqd/121:39:291
8560992620,3cyclictest25-21ksoftirqd/100:59:271
8560992619,4cyclictest25-21ksoftirqd/122:02:381
8553992621,3cyclictest9-21ksoftirqd/001:29:340
32552260,5sleep03260-21irqrtprio02:04:340
106891260,1ptp4l401ktimersoftd/323:00:053
106891260,0ptp4l401ktimersoftd/322:52:393
8575992519,3cyclictest41-21ksoftirqd/322:11:113
8560992521,3cyclictest25-21ksoftirqd/121:49:261
8560992520,3cyclictest25-21ksoftirqd/122:24:281
8560992520,3cyclictest25-21ksoftirqd/122:24:281
8560992520,3cyclictest25-21ksoftirqd/122:09:301
8560992520,3cyclictest25-21ksoftirqd/122:09:101
8560992520,3cyclictest25-21ksoftirqd/121:29:221
8560992519,3cyclictest25-21ksoftirqd/123:39:411
8560992519,3cyclictest25-21ksoftirqd/121:44:241
8560992519,3cyclictest25-21ksoftirqd/100:09:301
8560992518,4cyclictest25-21ksoftirqd/122:55:531
8560992518,4cyclictest25-21ksoftirqd/122:52:161
8553992519,4cyclictest24631-1kworker/u9:100:56:420
8553992519,3cyclictest9-21ksoftirqd/022:16:210
8553992518,4cyclictest9-21ksoftirqd/022:27:420
8553992518,4cyclictest9-21ksoftirqd/022:27:420
8553992518,4cyclictest26729-21grep21:54:290
106891250,1ptp4l401ktimersoftd/323:46:333
106891250,1ptp4l401ktimersoftd/322:24:223
106891250,1ptp4l401ktimersoftd/322:24:223
106891250,0ptp4l401ktimersoftd/322:41:233
106891250,0ptp4l401ktimersoftd/321:36:503
8560992419,3cyclictest25-21ksoftirqd/123:14:411
8560992419,3cyclictest25-21ksoftirqd/101:10:111
8560992419,3cyclictest25-21ksoftirqd/100:15:071
8560992419,3cyclictest25-21ksoftirqd/100:15:071
8553992419,3cyclictest9569-1kworker/u9:200:34:080
8553992419,3cyclictest9-21ksoftirqd/023:28:440
8553992419,3cyclictest9-21ksoftirqd/022:09:590
8553992419,3cyclictest9-21ksoftirqd/001:04:320
8553992418,3cyclictest9-21ksoftirqd/022:54:400
8553992418,3cyclictest9-21ksoftirqd/022:53:460
8553992418,3cyclictest9-21ksoftirqd/021:20:350
8553992418,3cyclictest9-21ksoftirqd/002:14:370
8553992417,4cyclictest9-21ksoftirqd/021:26:230
8553992413,8cyclictest11694-21tune2fs00:34:310
106891240,1ptp4l401ktimersoftd/323:09:253
106891240,1ptp4l401ktimersoftd/322:44:233
8560992318,3cyclictest25-21ksoftirqd/123:29:281
8560992318,3cyclictest25-21ksoftirqd/101:29:291
8560992313,5cyclictest25-21ksoftirqd/102:34:281
8553992318,3cyclictest9-21ksoftirqd/022:44:310
8553992318,3cyclictest9-21ksoftirqd/021:34:100
8553992318,3cyclictest9-21ksoftirqd/001:19:280
8553992317,4cyclictest9-21ksoftirqd/021:51:250
8553992317,3cyclictest9-21ksoftirqd/002:03:210
8553992317,3cyclictest16514-21kworker/0:002:19:280
8553992316,4cyclictest29611-21grep23:09:250
8553992316,4cyclictest17639-21cut23:34:350
106891230,1ptp4l401ktimersoftd/322:04:343
106891230,0ptp4l401ktimersoftd/321:44:173
8560992217,3cyclictest25-21ksoftirqd/101:54:441
8560992217,3cyclictest25-21ksoftirqd/101:54:441
8560992217,3cyclictest25-21ksoftirqd/100:50:361
8553992217,3cyclictest9-21ksoftirqd/023:19:380
8553992217,3cyclictest9-21ksoftirqd/001:44:410
8553992216,3cyclictest9393-21grep02:09:450
8553992216,3cyclictest9-21ksoftirqd/022:40:350
8553992215,4cyclictest9-21ksoftirqd/021:39:440
8553992214,5cyclictest24194-21grep00:14:270
8553992214,5cyclictest24194-21grep00:14:270
855399213,11cyclictest19150-21ssh00:09:260
8553992116,3cyclictest9-21ksoftirqd/022:23:130
8553992116,3cyclictest9-21ksoftirqd/001:56:350
8553992116,3cyclictest9-21ksoftirqd/001:56:350
8553992116,3cyclictest16616-1kworker/u9:101:49:240
8553992116,3cyclictest16616-1kworker/u9:101:49:240
8553992115,4cyclictest23556-21kworker/0:000:24:320
8553992115,3cyclictest9-21ksoftirqd/023:01:020
8553992115,3cyclictest9-21ksoftirqd/022:34:440
8553992114,4cyclictest28379-21sendmail_mailtr23:04:360
8553992114,4cyclictest13788-21head23:29:410
118782210,2sleep00-21swapper/000:01:200
855399202,15cyclictest31119-21grep22:04:270
8553992016,3cyclictest9-21ksoftirqd/023:39:270
8553992015,3cyclictest9-21ksoftirqd/002:44:320
8553992014,4cyclictest13219-21/usr/sbin/munin01:09:300
8553992014,3cyclictest7523-21sh01:03:290
8553992013,4cyclictest547-21sendmail_mailqu23:49:350
8553992013,4cyclictest1477-21diskmemload00:52:190
8553992010,8cyclictest29107-21irqrtprio21:59:280
8553991914,3cyclictest9-21ksoftirqd/023:14:430
8553991914,3cyclictest9-21ksoftirqd/002:24:330
8553991913,3cyclictest9-21ksoftirqd/021:37:270
8553991913,3cyclictest1477-21diskmemload02:30:040
8553991912,4cyclictest21864-21irqrtprio00:44:330
8553991912,4cyclictest1477-21diskmemload02:38:120
8553991912,4cyclictest1477-21diskmemload00:19:430
8553991912,4cyclictest1477-21diskmemload00:06:080
855399190,3cyclictest1477-21diskmemload01:24:440
8553991812,3cyclictest5892-21latency02:39:360
8553991812,3cyclictest17280-21missed_timers00:39:340
8553991811,4cyclictest21584-21df_inode21:44:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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