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2026-05-01 - 05:05
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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 Fri May 01, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2135921740,3sleep22934499cyclictest23:30:542
1068911610,4ptp4l401ktimersoftd/320:24:473
2938021580,3sleep02933199cyclictest00:42:470
96562680,2sleep00-21swapper/000:57:000
96562680,2sleep00-21swapper/000:57:000
81002670,2sleep00-21swapper/001:28:160
46402650,5sleep125-21ksoftirqd/121:47:351
153412640,5sleep12933799cyclictest01:36:481
57582630,1sleep00-21swapper/023:14:300
29352996352,5cyclictest41-21ksoftirqd/323:42:293
29352996255,3cyclictest41-21ksoftirqd/322:57:293
171812610,2sleep20-21swapper/200:32:012
2934499609,12cyclictest32487-21latency_hist00:47:192
2934499598,14cyclictest5162-21grep22:42:162
2934499589,13cyclictest25779-21gltestperf00:07:342
29344995810,10cyclictest29610-21sshd23:07:032
2934499579,20cyclictest10959-21/usr/sbin/munin01:32:452
2934499579,12cyclictest20568-21irqrtprio21:12:332
29344995711,11cyclictest10601-21expr22:47:312
29344995710,11cyclictest6817-21gzip22:42:412
106891570,1ptp4l401ktimersoftd/301:08:173
2934499568,13cyclictest1648-21open_files23:42:382
29344995610,11cyclictest16696-21swap01:02:472
29352995542,6cyclictest41-21ksoftirqd/300:42:313
2934499558,19cyclictest23959-21latency00:37:392
2934499557,13cyclictest13284-21/usr/sbin/munin23:22:342
2934499549,11cyclictest29693-21cat01:17:202
2934499549,10cyclictest23853-21cut22:27:342
2934499549,10cyclictest2380-21latency_hist00:17:192
2934499548,13cyclictest30948-21awk20:27:412
2934499547,13cyclictest31676-21cut01:52:362
2934499546,12cyclictest29548-21unixbench_multi23:37:472
29344995410,11cyclictest5152-21cat20:42:272
106891540,1ptp4l401ktimersoftd/323:55:383
2934499539,10cyclictest16469-21open_files22:52:372
2934499537,13cyclictest3058-21date21:42:422
2934499537,12cyclictest30098-21/usr/sbin/munin23:07:422
2934499536,11cyclictest25821-21latency_hist01:47:212
2934499536,11cyclictest11309-21sed23:52:372
2934499535,18cyclictest0-21swapper/200:47:492
2934499527,12cyclictest4262-21awk20:37:422
2934499524,12cyclictest32589-21ssh22:37:172
29352995141,5cyclictest41-21ksoftirqd/323:32:303
2934499517,20cyclictest9052-21sed20:47:422
2934499517,17cyclictest16577-21ptp4l23:57:412
2934499517,12cyclictest13407-21/usr/sbin/munin22:07:322
29344995111,10cyclictest7883-21sh00:54:002
29344995111,10cyclictest7883-21sh00:54:002
29352995043,4cyclictest41-21ksoftirqd/301:37:333
29352995039,5cyclictest41-21ksoftirqd/321:42:263
29352995038,6cyclictest41-21ksoftirqd/300:52:323
29352995038,6cyclictest41-21ksoftirqd/300:52:323
2934499509,10cyclictest6729-21ssh00:21:192
2934499507,11cyclictest22670-21diskmemload01:31:202
2934499506,11cyclictest31381-21latency_hist21:37:152
318412490,2sleep10-21swapper/101:52:381
29352994937,6cyclictest41-21ksoftirqd/322:37:293
2934499497,19cyclictest17374-21timerwakeupswit22:12:442
2934499496,10cyclictest6289-21sed23:47:382
2934499495,18cyclictest0-21swapper/221:32:152
29344994910,16cyclictest4984-21chrt23:13:112
290612494,33sleep10-21swapper/120:25:051
2934499489,11cyclictest21607-21snmp_o5powerctl01:07:482
2934499487,11cyclictest22670-21diskmemload01:21:132
2934499486,11cyclictest4653-21ps21:47:352
2903524828,8sleep20-21swapper/220:24:452
106891480,1ptp4l401ktimersoftd/323:32:163
29352994738,4cyclictest41-21ksoftirqd/322:47:293
29352994737,6cyclictest41-21ksoftirqd/300:47:323
2934499475,18cyclictest0-21swapper/221:17:342
29352994636,4cyclictest41-21ksoftirqd/301:52:323
29352994437,4cyclictest41-21ksoftirqd/300:27:233
29352994434,5cyclictest41-21ksoftirqd/320:27:263
29352994415,7cyclictest41-21ksoftirqd/300:27:193
29352994410,8cyclictest41-21ksoftirqd/300:07:193
29331994439,3cyclictest0-21swapper/020:27:140
106891440,1ptp4l401ktimersoftd/323:16:383
2934499435,16cyclictest0-21swapper/221:57:432
29352994231,6cyclictest41-21ksoftirqd/321:07:263
2934499423,11cyclictest0-21swapper/200:34:072
2935299418,4cyclictest41-21ksoftirqd/300:17:193
29352994118,3cyclictest41-21ksoftirqd/301:42:403
29352994028,3cyclictest41-21ksoftirqd/301:12:313
29352994024,5cyclictest41-21ksoftirqd/323:37:373
29352994016,4cyclictest41-21ksoftirqd/320:47:303
29352994015,4cyclictest41-21ksoftirqd/321:32:333
2934499408,18cyclictest0-21swapper/223:17:292
106891400,1ptp4l401ktimersoftd/300:20:003
2935299399,5cyclictest41-21ksoftirqd/300:32:473
29352993914,4cyclictest41-21ksoftirqd/323:17:333
29352993914,4cyclictest41-21ksoftirqd/322:32:373
106891390,1ptp4l401ktimersoftd/301:32:573
2935299386,4cyclictest41-21ksoftirqd/323:12:173
29352993827,3cyclictest41-21ksoftirqd/322:02:443
29352993812,4cyclictest41-21ksoftirqd/301:17:353
29352993810,5cyclictest41-21ksoftirqd/322:12:323
29344993811,12cyclictest11012-21tail20:52:342
29344993810,12cyclictest21968-21grep22:57:452
106891380,1ptp4l401ktimersoftd/323:50:143
106891380,1ptp4l401ktimersoftd/323:26:473
106891380,1ptp4l401ktimersoftd/300:00:333
106891380,0ptp4l401ktimersoftd/322:56:093
2935299377,5cyclictest41-21ksoftirqd/301:27:313
29352993723,5cyclictest41-21ksoftirqd/320:57:303
29352993711,4cyclictest41-21ksoftirqd/321:27:453
29337993729,4cyclictest25-21ksoftirqd/123:42:231
106891370,1ptp4l401ktimersoftd/322:27:203
106891370,1ptp4l401ktimersoftd/300:59:123
106891370,1ptp4l401ktimersoftd/300:38:173
106891370,1ptp4l401ktimersoftd/300:11:513
106891370,0ptp4l401ktimersoftd/322:00:073
2935299366,5cyclictest41-21ksoftirqd/321:52:433
29352993620,7cyclictest41-21ksoftirqd/320:32:423
29352993613,8cyclictest41-21ksoftirqd/320:52:293
29344993611,11cyclictest13874-21unixbench_multi20:57:432
106891360,1ptp4l401ktimersoftd/322:22:343
106891360,1ptp4l401ktimersoftd/301:48:293
106891360,1ptp4l401ktimersoftd/301:04:283
106891360,0ptp4l401ktimersoftd/323:03:443
29352993527,4cyclictest41-21ksoftirqd/321:02:183
29352993522,4cyclictest41-21ksoftirqd/322:42:423
2934499357,12cyclictest16461-21fschecks_count01:37:362
2935299343,4cyclictest41-21ksoftirqd/301:27:213
29352993428,3cyclictest41-21ksoftirqd/321:52:153
29352993410,4cyclictest41-21ksoftirqd/321:12:373
2934499347,13cyclictest11261-21cpuspeed_turbos22:02:282
2934499347,11cyclictest22670-21diskmemload00:23:572
29352993327,3cyclictest41-21ksoftirqd/320:47:133
29352993327,3cyclictest41-21ksoftirqd/320:37:293
29352993310,7cyclictest41-21ksoftirqd/322:07:323
2934499339,10cyclictest2626-21run-parts01:22:462
2934499335,13cyclictest0-21swapper/222:17:332
29344993310,10cyclictest25594-21cat21:22:332
29344993310,10cyclictest25594-21cat21:22:332
2935299326,7cyclictest41-21ksoftirqd/321:37:333
2934499327,11cyclictest22670-21diskmemload01:48:312
29344993219,7cyclictest22594-21apt-get23:32:302
29344993218,6cyclictest14860-21apt-get21:02:272
2935299316,4cyclictest41-21ksoftirqd/321:22:313
2935299316,4cyclictest41-21ksoftirqd/321:22:313
2935299311,8cyclictest41-21ksoftirqd/321:22:153
2935299311,10cyclictest41-21ksoftirqd/322:17:313
2934499315,11cyclictest10329-21cpu00:57:362
2934499315,10cyclictest0-21swapper/220:37:142
29344993116,10cyclictest0-21swapper/221:52:252
2934499307,10cyclictest24030-21ssh00:06:092
29337993020,3cyclictest25-21ksoftirqd/123:03:431
2934499284,11cyclictest0-21swapper/221:37:322
29337992818,3cyclictest25-21ksoftirqd/100:33:161
29337992721,3cyclictest25-21ksoftirqd/122:22:211
29344992613,10cyclictest21664-21grep22:22:382
29331992621,3cyclictest9-21ksoftirqd/000:27:180
29331992618,5cyclictest22499-21cut21:17:300
29331992617,7cyclictest15340-21ssh01:36:480
29331992610,4cyclictest301342cpuspeed_turbos01:17:350
69822250,2sleep00-21swapper/021:52:320
29344992513,8cyclictest18778-21snmp_o5powerctl21:07:392
29337992518,4cyclictest15295-21grep21:02:311
29331992520,3cyclictest9-21ksoftirqd/022:41:020
29331992519,3cyclictest9-21ksoftirqd/021:01:110
29331992519,3cyclictest9-21ksoftirqd/020:30:170
29331992519,3cyclictest9-21ksoftirqd/001:08:320
29331992518,4cyclictest9-21ksoftirqd/020:52:540
29331992518,4cyclictest22926-21grep01:42:530
29337992419,3cyclictest25-21ksoftirqd/123:38:201
29337992418,3cyclictest25-21ksoftirqd/122:01:461
29337992418,3cyclictest25-21ksoftirqd/121:56:411
29337992418,3cyclictest25-21ksoftirqd/121:13:051
29337992418,3cyclictest25-21ksoftirqd/120:54:471
29337992417,4cyclictest25-21ksoftirqd/122:13:441
29337992416,6cyclictest25-21ksoftirqd/122:27:281
2933199243,17cyclictest24918-21cat00:07:190
29331992419,3cyclictest9-21ksoftirqd/000:32:320
29331992418,3cyclictest9-21ksoftirqd/023:37:260
29331992418,3cyclictest9-21ksoftirqd/022:17:350
29331992417,4cyclictest9-21ksoftirqd/021:37:180
29331992417,4cyclictest9-21ksoftirqd/001:26:310
29331992410,11cyclictest3606-21irqrtprio00:17:380
248552240,2sleep12933799cyclictest00:37:541
29337992318,3cyclictest25-21ksoftirqd/100:58:111
29337992317,4cyclictest25-21ksoftirqd/121:46:061
29337992317,3cyclictest25-21ksoftirqd/122:39:141
29337992317,3cyclictest25-21ksoftirqd/122:09:101
29337992317,3cyclictest25-21ksoftirqd/120:59:461
29337992317,3cyclictest15682-21grep01:02:361
29337992316,4cyclictest25-21ksoftirqd/122:19:061
29337992316,4cyclictest25-21ksoftirqd/120:48:291
29337992316,4cyclictest17874-21grep21:07:301
2933199234,16cyclictest28505-21tr22:32:360
29331992318,3cyclictest9-21ksoftirqd/022:09:140
29331992318,3cyclictest9-21ksoftirqd/000:47:330
29331992317,3cyclictest9-21ksoftirqd/021:22:210
29331992317,3cyclictest9-21ksoftirqd/021:22:210
29331992317,3cyclictest9-21ksoftirqd/020:40:500
29331992316,4cyclictest9-21ksoftirqd/021:43:440
29331992314,5cyclictest22670-21diskmemload00:37:440
166902230,2sleep00-21swapper/000:31:100
104012231,18sleep110411-21ssh00:24:141
298812220,2sleep00-21swapper/001:50:440
29337992216,3cyclictest25-21ksoftirqd/121:29:001
29337992215,4cyclictest15228-21/usr/sbin/munin22:52:461
2933799221,3cyclictest24559-21apt-get21:22:251
2933799221,3cyclictest24559-21apt-get21:22:251
2933199226,10cyclictest25330-21ssh00:07:290
29331992216,3cyclictest9-21ksoftirqd/022:17:090
29331992216,3cyclictest9-21ksoftirqd/021:30:400
29331992216,3cyclictest9-21ksoftirqd/021:12:530
29331992216,3cyclictest9-21ksoftirqd/001:41:090
29331992215,4cyclictest9-21ksoftirqd/023:02:010
29331992215,4cyclictest22992-21tune2fs23:32:340
29331992215,4cyclictest19707-21latency_hist01:07:200
29331992215,3cyclictest7105-21latency_hist20:47:140
29331992215,3cyclictest16925-21latency_hist21:07:150
248372220,3sleep00-21swapper/022:27:450
29337992116,3cyclictest25-21ksoftirqd/100:27:231
29337992115,4cyclictest5431-21/usr/sbin/munin20:42:301
29337992115,3cyclictest9910-21sh01:31:111
29337992114,5cyclictest25-21ksoftirqd/123:09:031
29337992114,4cyclictest6083-21cut00:52:391
29337992114,4cyclictest6083-21cut00:52:391
29337992114,4cyclictest30070-21kworker/1:022:57:321
29337992114,4cyclictest28167-21grep22:32:331
2933799211,3cyclictest27724-21ssh01:47:491
29337992113,3cyclictest25-21ksoftirqd/123:53:471
29331992116,3cyclictest9-21ksoftirqd/023:02:360
29331992116,3cyclictest9-21ksoftirqd/022:57:170
29331992114,4cyclictest5921-21grep22:42:340
29331992114,4cyclictest31366-21sendmail21:37:150
2933199211,17cyclictest9055-21grep21:57:290
2933199211,16cyclictest32513-21cat20:32:190
2933199210,18cyclictest22670-21diskmemload23:56:130
168712210,2sleep00-21swapper/023:26:380
29337992015,3cyclictest25-21ksoftirqd/121:21:001
29337992015,3cyclictest25-21ksoftirqd/101:26:401
29337992014,4cyclictest8378-21sh22:44:351
29337992014,4cyclictest25-21ksoftirqd/120:39:221
29337992014,4cyclictest19894-21sh01:40:571
29337992014,3cyclictest29219-21/usr/sbin/munin21:32:301
29337992014,3cyclictest25-21ksoftirqd/123:37:181
29337992014,3cyclictest25-21ksoftirqd/120:33:451
29337992014,3cyclictest2375-21sendmail00:17:191
29337992013,4cyclictest25718-21cat01:12:381
29337992013,4cyclictest25-21ksoftirqd/100:21:481
2933799201,16cyclictest0-21swapper/123:25:341
2933799200,16cyclictest1055-21runrttasks00:12:191
2933199209,3cyclictest11648-21processes22:47:400
29331992014,3cyclictest31211-21/usr/sbin/munin01:52:490
29331992014,3cyclictest0-21swapper/022:22:400
29331992013,4cyclictest9507-21sed23:17:470
29331992013,4cyclictest9-21ksoftirqd/022:05:000
29331992013,4cyclictest5503-21sed21:47:450
29331992013,4cyclictest25219-21seq01:12:330
29331992013,4cyclictest22670-21diskmemload23:48:100
2933799197,9cyclictest0-21swapper/100:02:311
2933799195,4cyclictest25-21ksoftirqd/100:49:141
29337991914,3cyclictest31616-21/usr/sbin/munin21:37:431
29337991913,4cyclictest13145-21sh22:49:191
29337991913,3cyclictest8920-21sed23:17:381
29337991913,3cyclictest28589-21sh00:42:381
29337991913,3cyclictest22774-21timedrift01:42:521
29337991913,3cyclictest20598-21tail01:07:381
29337991912,4cyclictest6711-21ptp4l23:47:411
29337991912,4cyclictest30195-21if_err_enp1s0.120:27:311
2933799191,15cyclictest17785-21cpuspeed_turbos23:27:311
29331991913,3cyclictest19335-21sed23:27:460
29331991912,4cyclictest32034-21awk23:07:490
29331991912,4cyclictest2380-21latency_hist00:17:190
29331991912,4cyclictest22670-21diskmemload23:46:530
29331991912,4cyclictest22670-21diskmemload00:00:480
29331991912,4cyclictest17928-21ls21:07:310
29331991912,4cyclictest10512-21expr00:57:360
2933799184,7cyclictest25-21ksoftirqd/101:21:341
29337991812,3cyclictest15179-21/usr/sbin/munin23:57:341
29337991812,3cyclictest12785-21sed22:02:441
29337991811,4cyclictest2711-21gdbus23:12:181
29331991812,3cyclictest7454-21/usr/sbin/munin20:47:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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