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2026-08-21 - 09:12
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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 Aug 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911160,8ptp4l17552-21kworker/3:121:26:483
295292800,4sleep1241ktimersoftd/100:16:341
295292800,4sleep1241ktimersoftd/100:16:341
2077099682,26cyclictest17833-21apt-get02:49:250
2077099661,28cyclictest14343-21fschecks_time00:34:240
2077099661,26cyclictest3981-21sed21:59:200
2077099650,27cyclictest31688-21fschecks_count01:24:250
2077099640,27cyclictest10505-21unixbench_multi01:34:410
204592644,10sleep00-21swapper/021:26:220
2077099631,27cyclictest3777-21acpi01:29:210
2077099631,26cyclictest19779-21tune2fs23:34:240
2077099630,28cyclictest22819-21tune2fs22:39:210
2077099630,27cyclictest12219-21fschecks_time23:59:240
2077099630,26cyclictest26279-21cat00:14:090
2077099630,26cyclictest10045-21fschecks_time23:19:230
214192620,2sleep30-21swapper/302:19:303
20770996211,28cyclictest6587-21sed23:09:350
2077099611,29cyclictest29816-21taskset01:54:360
2077099611,27cyclictest3080-21sed00:54:380
2077099611,26cyclictest1682-21cp23:49:080
2077099611,25cyclictest0-21swapper/002:49:130
2077099610,27cyclictest4024-21chrt00:24:120
2077099610,27cyclictest25607-21sed22:44:240
2077099610,27cyclictest15687-21grep22:24:220
2077099610,27cyclictest15687-21grep22:24:220
2077099610,26cyclictest32645-21cstates22:59:210
2077099610,26cyclictest22348-21sed22:39:070
2077099610,26cyclictest21780-21sed02:19:310
2077099610,26cyclictest18281-21latency_hist01:44:100
231132600,3sleep10-21swapper/123:37:441
2077099602,29cyclictest11601-21irqstats02:09:330
2077099601,31cyclictest805-21awk00:19:390
2077099601,26cyclictest24542-21hddtemp_smartct21:34:220
2077099600,34cyclictest30323-21timerwakeupswit21:44:340
2077099600,27cyclictest7055-21irqrtprio00:59:280
2077099600,27cyclictest3853-21cut02:34:320
2077099600,27cyclictest10825-21cstates22:14:190
2077099600,26cyclictest14787-21df23:29:210
2077099600,26cyclictest12159-21expr23:24:210
2077099600,26cyclictest10453-21sed02:09:110
2077099600,25cyclictest4748-21sed23:09:070
2077099600,25cyclictest31399-21cstates21:49:170
2077099600,24cyclictest26013-21latency_hist01:19:100
2077099590,26cyclictest30854-21cstates02:29:250
2077099590,26cyclictest27103-21irqrtprio21:39:220
2077099590,26cyclictest26615-21sort00:14:210
2077099590,26cyclictest26615-21sort00:14:210
2077099590,26cyclictest26043-21timerwakeupswit23:39:370
2077099581,25cyclictest12503-21latency01:04:310
2077099580,25cyclictest30016-21cstates22:54:200
2077099580,25cyclictest26348-21/usr/sbin/munin01:19:240
2077099580,25cyclictest25792-21cstates02:24:270
2077099580,25cyclictest20473-21cat02:19:120
2077099580,25cyclictest18761-21sed22:29:260
2077099580,25cyclictest18761-21sed22:29:260
2077099580,25cyclictest14113-21diskmemload00:39:380
2077099580,25cyclictest14113-21diskmemload00:33:340
2077099580,25cyclictest1341-21cstates21:54:160
2077099571,27cyclictest8165-21/usr/sbin/munin22:09:260
2077099570,26cyclictest29550-21sed22:54:070
2077099570,25cyclictest13584-21if_ens322:19:240
316402560,2sleep30-21swapper/301:24:253
2077099560,26cyclictest17333-21if_enp1s0.100:04:260
2077099560,25cyclictest27501-21ssh01:53:240
2077099560,25cyclictest21011-21acpi21:29:150
2077099550,23cyclictest0-21swapper/001:09:250
2077099540,28cyclictest11472-21cut23:59:080
2077099540,23cyclictest14113-21diskmemload02:55:440
2077799535,3cyclictest121rcu_preempt01:19:411
20777995315,5cyclictest25-21ksoftirqd/101:34:101
2077099531,25cyclictest18550-21ssh01:44:220
2077099530,25cyclictest8477-21processes23:14:280
65022520,2sleep20-21swapper/200:25:262
2077799521,9cyclictest21346-21apt-get01:14:151
2077099520,25cyclictest7482-21sed22:04:340
2077099520,22cyclictest16909-1kworker/u9:200:50:160
2077799513,8cyclictest25-21ksoftirqd/121:29:051
20777995124,8cyclictest25-21ksoftirqd/100:39:091
243052500,2sleep024306-21expr00:44:230
2077799495,35cyclictest121rcu_preempt02:01:041
2077799495,35cyclictest121rcu_preempt02:01:041
20777994722,4cyclictest25-21ksoftirqd/101:14:111
2077099471,25cyclictest14113-21diskmemload02:39:400
205132474,29sleep20-21swapper/221:27:052
20777994636,3cyclictest25-21ksoftirqd/123:49:081
20777994536,5cyclictest25-21ksoftirqd/121:29:161
20777994520,4cyclictest25-21ksoftirqd/122:04:051
2077799445,11cyclictest121rcu_preempt22:59:111
20777994423,7cyclictest25-21ksoftirqd/100:59:311
20777994422,7cyclictest25-21ksoftirqd/123:54:391
20777994420,4cyclictest25-21ksoftirqd/123:24:271
20777994420,4cyclictest25-21ksoftirqd/122:09:241
20777994420,4cyclictest25-21ksoftirqd/100:49:321
20777994413,8cyclictest25-21ksoftirqd/102:29:121
20777994336,4cyclictest25-21ksoftirqd/101:39:211
20777994327,3cyclictest25-21ksoftirqd/100:54:381
20777994322,7cyclictest25-21ksoftirqd/102:34:411
20777994319,7cyclictest25-21ksoftirqd/102:10:591
20777994317,4cyclictest25-21ksoftirqd/100:09:081
20777994315,7cyclictest25-21ksoftirqd/102:14:261
2077099430,25cyclictest1339-21tail01:59:270
2077099430,25cyclictest1339-21tail01:59:270
2077799426,3cyclictest25-21ksoftirqd/100:44:261
20777994218,4cyclictest25-21ksoftirqd/123:04:261
20777994215,8cyclictest25-21ksoftirqd/100:19:311
20777994214,10cyclictest25-21ksoftirqd/102:39:291
2077799420,3cyclictest121rcu_preempt22:34:061
2077799420,3cyclictest121rcu_preempt22:34:061
2077799419,10cyclictest25-21ksoftirqd/121:54:201
20777994123,15cyclictest25-21ksoftirqd/102:04:261
20777994119,8cyclictest25-21ksoftirqd/122:14:211
20777994117,8cyclictest25-21ksoftirqd/102:29:301
20777994116,4cyclictest25-21ksoftirqd/123:09:221
20777994113,9cyclictest25-21ksoftirqd/121:34:251
20777994113,6cyclictest25-21ksoftirqd/122:49:071
106891410,1ptp4l401ktimersoftd/302:44:303
2077799409,7cyclictest25-21ksoftirqd/102:49:321
2077799408,10cyclictest25-21ksoftirqd/123:39:181
2077099405,21cyclictest29517-21expr23:44:240
2077799393,3cyclictest121rcu_preempt22:59:071
20777993929,8cyclictest25-21ksoftirqd/123:29:361
20777993910,5cyclictest25-21ksoftirqd/102:19:301
106891390,1ptp4l401ktimersoftd/302:15:583
2077799388,8cyclictest25-21ksoftirqd/101:04:391
2077799384,6cyclictest25-21ksoftirqd/101:54:321
20777993832,3cyclictest25-21ksoftirqd/100:39:131
20777993829,3cyclictest25-21ksoftirqd/101:24:281
20777993821,10cyclictest25-21ksoftirqd/100:09:441
20777993814,8cyclictest25-21ksoftirqd/100:29:261
20777993813,7cyclictest25-21ksoftirqd/102:44:291
20777993812,10cyclictest25-21ksoftirqd/123:19:231
20777993811,9cyclictest25-21ksoftirqd/123:49:391
106891380,1ptp4l401ktimersoftd/302:10:413
106891380,1ptp4l401ktimersoftd/301:52:553
106891380,1ptp4l401ktimersoftd/301:39:133
106891380,1ptp4l401ktimersoftd/300:20:023
106891380,1ptp4l401ktimersoftd/300:03:373
2079099373,9cyclictest845-21apt-get01:59:233
2079099373,9cyclictest845-21apt-get01:59:233
2077799375,7cyclictest25-21ksoftirqd/101:34:321
20777993725,3cyclictest25-21ksoftirqd/100:26:441
20777993711,9cyclictest25-21ksoftirqd/102:54:291
106891370,1ptp4l401ktimersoftd/323:56:503
106891370,1ptp4l401ktimersoftd/323:43:113
106891370,1ptp4l401ktimersoftd/323:37:183
106891370,1ptp4l401ktimersoftd/323:33:393
106891370,1ptp4l401ktimersoftd/302:49:493
106891370,1ptp4l401ktimersoftd/302:34:463
106891370,1ptp4l401ktimersoftd/302:06:243
106891370,1ptp4l401ktimersoftd/301:38:353
106891370,1ptp4l401ktimersoftd/300:54:163
106891370,1ptp4l401ktimersoftd/300:51:093
106891370,1ptp4l401ktimersoftd/300:41:523
106891370,1ptp4l401ktimersoftd/300:35:103
106891370,1ptp4l401ktimersoftd/300:16:453
106891370,1ptp4l401ktimersoftd/300:16:453
106891370,1ptp4l401ktimersoftd/300:05:503
106891370,0ptp4l401ktimersoftd/323:46:543
106891370,0ptp4l401ktimersoftd/302:41:493
106891370,0ptp4l401ktimersoftd/302:24:503
106891370,0ptp4l401ktimersoftd/300:30:383
20790993611,22cyclictest29536-21sed22:54:073
2077799368,6cyclictest25-21ksoftirqd/121:44:281
2077799366,8cyclictest25-21ksoftirqd/122:04:251
2077799366,8cyclictest25-21ksoftirqd/101:44:231
2077799362,4cyclictest121rcu_preempt22:54:071
20777993616,4cyclictest25-21ksoftirqd/121:49:201
20777993615,11cyclictest25-21ksoftirqd/122:29:061
20777993615,11cyclictest25-21ksoftirqd/122:29:061
106891360,1ptp4l401ktimersoftd/322:06:383
106891360,1ptp4l401ktimersoftd/302:29:153
106891360,1ptp4l401ktimersoftd/301:11:463
106891360,1ptp4l401ktimersoftd/300:46:043
106891360,0ptp4l401ktimersoftd/302:56:303
20790993510,22cyclictest25509-21irqrtprio22:44:243
2077799356,8cyclictest25-21ksoftirqd/123:14:201
20777993514,6cyclictest25-21ksoftirqd/122:39:191
106891350,1ptp4l401ktimersoftd/323:04:113
106891350,1ptp4l401ktimersoftd/301:30:333
106891350,0ptp4l401ktimersoftd/301:55:533
106891350,0ptp4l401ktimersoftd/300:27:033
2079099343,9cyclictest1118-21apt-get21:54:153
2079099342,6cyclictest0-21swapper/323:49:213
20777993429,3cyclictest25-21ksoftirqd/101:49:321
20777993428,3cyclictest25-21ksoftirqd/123:59:241
2079099338,4cyclictest26240-21date01:19:113
2079099338,3cyclictest15773-21expr22:24:233
2079099338,3cyclictest15773-21expr22:24:233
20790993312,18cyclictest29012-21sh01:20:553
20790993311,19cyclictest9804-21grep22:09:343
20790993310,3cyclictest21573-21if_enp1s0.121:29:213
2077799338,10cyclictest25-21ksoftirqd/122:34:261
20777993327,3cyclictest25-21ksoftirqd/122:24:061
2079099329,3cyclictest30326-21if_enp1s022:54:233
2079099328,5cyclictest12179-21sed01:04:293
2079099323,4cyclictest0-21swapper/322:29:173
2079099323,4cyclictest0-21swapper/322:29:173
2079099322,4cyclictest0-21swapper/323:19:193
20790993216,13cyclictest41-21ksoftirqd/322:20:463
20781993224,4cyclictest33-21ksoftirqd/201:29:222
2079099318,4cyclictest17602chrt23:00:363
2079099315,4cyclictest27001-21ethtool21:39:213
2079099312,7cyclictest18536-21apt-get01:44:213
2079099312,4cyclictest0-21swapper/321:59:163
2079099312,4cyclictest0-21swapper/321:44:183
2077799317,9cyclictest25-21ksoftirqd/121:39:171
2079099307,4cyclictest11920-21mailstats22:14:283
2079099298,3cyclictest401ktimersoftd/321:34:063
2079099297,4cyclictest20022-21/usr/sbin/munin22:34:213
2079099297,3cyclictest10184-21sh01:03:033
2079099296,4cyclictest22984-21idleruntime22:39:233
2079099296,3cyclictest6612-21uptime23:09:363
2079099295,3cyclictest1055-21runrttasks00:09:213
2079099292,5cyclictest0-21swapper/323:24:193
2079099286,3cyclictest7568-21forks23:14:223
20781992720,4cyclictest33-21ksoftirqd/221:43:232
20781992719,5cyclictest33-21ksoftirqd/222:29:062
20781992719,5cyclictest33-21ksoftirqd/222:29:062
20781992712,9cyclictest10672-21ssh02:09:262
2078199266,12cyclictest31491-21ssh00:19:212
20781992620,3cyclictest33-21ksoftirqd/222:32:512
20781992620,3cyclictest33-21ksoftirqd/222:32:512
20781992620,3cyclictest33-21ksoftirqd/200:54:532
20781992619,4cyclictest33-21ksoftirqd/200:12:012
2079099258,3cyclictest31188-21grep21:49:173
2078199259,11cyclictest47150irq/102-ens3-Tx01:59:232
2078199259,11cyclictest47150irq/102-ens3-Tx01:59:232
20781992519,3cyclictest33-21ksoftirqd/223:02:072
20781992519,3cyclictest33-21ksoftirqd/201:52:432
20781992518,4cyclictest33-21ksoftirqd/222:15:272
2078199250,3cyclictest121rcu_preempt22:44:272
2078199249,12cyclictest33-21ksoftirqd/202:23:362
2078199244,12cyclictest29292-21ssh23:44:222
2078199243,11cyclictest28401-21ssh01:54:262
20781992419,3cyclictest33-21ksoftirqd/200:39:092
20781992418,4cyclictest33-21ksoftirqd/223:56:522
20781992418,3cyclictest33-21ksoftirqd/202:49:262
20781992418,3cyclictest33-21ksoftirqd/200:51:202
20781992417,4cyclictest33-21ksoftirqd/223:38:452
20781992417,4cyclictest33-21ksoftirqd/223:24:162
20781992417,4cyclictest33-21ksoftirqd/221:52:222
20781992417,4cyclictest33-21ksoftirqd/201:08:172
2078199234,11cyclictest64-21kswapd002:54:252
20781992317,3cyclictest33-21ksoftirqd/222:02:462
20781992317,3cyclictest33-21ksoftirqd/200:04:262
20781992317,3cyclictest1844-21sh01:26:312
2078199231,19cyclictest19991-21snmp_o5powerctl01:44:352
2078199231,19cyclictest0-21swapper/223:39:242
20781992217,3cyclictest33-21ksoftirqd/223:14:582
20781992217,3cyclictest28819-21apt-get21:44:182
20781992216,3cyclictest33-21ksoftirqd/222:37:272
20781992215,4cyclictest33-21ksoftirqd/221:29:102
2078199221,3cyclictest13473-21hddtemp_smartct22:19:222
2078199221,18cyclictest7238-21snmp_o5powerctl02:04:402
2078199220,19cyclictest9095-21memory02:39:322
2078199217,11cyclictest3045-21acpi02:34:252
20781992116,3cyclictest33-21ksoftirqd/223:04:492
20781992115,4cyclictest33-21ksoftirqd/201:03:002
20781992115,3cyclictest33-21ksoftirqd/222:39:432
20781992115,3cyclictest24669-21sh01:16:552
20781992114,4cyclictest33-21ksoftirqd/222:04:112
20781992114,4cyclictest11704-21sh01:36:372
20781992113,5cyclictest9934-21df_inode23:19:212
20781992113,5cyclictest33-21ksoftirqd/223:59:352
20781992113,5cyclictest19608-21grep00:39:262
20781992112,5cyclictest26811-21sh00:14:222
20781992112,5cyclictest26811-21sh00:14:222
2078199204,9cyclictest30624-21ssh02:29:232
2078199204,9cyclictest0-21swapper/221:54:142
20781992015,3cyclictest33-21ksoftirqd/222:49:422
20781992014,3cyclictest16836-21sh01:41:582
20781992013,4cyclictest4598-21sh23:50:592
20781992013,4cyclictest26733-21grep02:24:342
20781992013,4cyclictest17086-21cut01:09:282
20781992013,4cyclictest14817-21sh23:29:222
20781992013,4cyclictest14113-21diskmemload00:29:262
20781992013,4cyclictest1055-21runrttasks01:19:132
2078199201,2cyclictest0-21swapper/202:14:282
20781992012,5cyclictest28263-21sh00:48:422
20781992012,5cyclictest17635-21latency_hist02:49:132
20781991912,4cyclictest31924-21latency_hist22:59:072
20781991912,4cyclictest23679-21fschecks_count21:34:082
2078199191,16cyclictest0-21swapper/223:10:202
2078199191,15cyclictest9580-21snmp_o5powerctl22:09:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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