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2026-05-25 - 01:27
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 376 highest latencies:
System rack1slot1.osadl.org (updated Mon May 25, 2026 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
296522210154,22sleep10-21swapper/119:09:511
293822203163,26sleep20-21swapper/219:06:182
296262199160,25sleep00-21swapper/019:09:290
295972199156,21sleep30-21swapper/319:09:083
122452700,0sleep00-21swapper/021:36:590
29786991818,0cyclictest35-21ksoftirqd/321:32:583
29775991412,1cyclictest22860-21diskmemload22:00:202
2977599140,13cyclictest0-21swapper/222:55:112
2976999140,13cyclictest0-21swapper/122:55:161
29786991311,1cyclictest35-21ksoftirqd/323:30:153
2978699125,4cyclictest35-21ksoftirqd/323:40:143
29786991212,0cyclictest35-21ksoftirqd/321:23:533
29786991212,0cyclictest35-21ksoftirqd/300:05:243
29786991211,1cyclictest35-21ksoftirqd/320:25:163
29786991211,0cyclictest13650irq/124-ahci[0019:15:003
29786991210,1cyclictest35-21ksoftirqd/323:45:113
29786991210,1cyclictest35-21ksoftirqd/321:54:593
29775991210,1cyclictest28-21ksoftirqd/222:00:002
2976999120,11cyclictest0-21swapper/119:40:161
106922120,0sleep00-21swapper/023:01:500
2978699119,1cyclictest35-21ksoftirqd/323:35:163
2978699119,1cyclictest35-21ksoftirqd/321:45:003
29786991111,0cyclictest35-21ksoftirqd/323:05:013
29786991111,0cyclictest35-21ksoftirqd/322:40:133
29786991111,0cyclictest35-21ksoftirqd/321:50:003
29786991111,0cyclictest35-21ksoftirqd/321:39:593
29786991111,0cyclictest35-21ksoftirqd/300:32:543
29786991110,1cyclictest35-21ksoftirqd/323:05:163
29786991110,1cyclictest35-21ksoftirqd/322:35:183
29786991110,1cyclictest35-21ksoftirqd/321:55:183
29786991110,1cyclictest35-21ksoftirqd/321:25:183
29786991110,1cyclictest35-21ksoftirqd/320:55:193
29786991110,1cyclictest35-21ksoftirqd/319:59:593
2977599118,2cyclictest24020-21gltestperf23:20:132
2977599110,11cyclictest0-21swapper/222:49:062
2975899112,4cyclictest6993-21perf22:15:010
2975899112,4cyclictest5868-21perf21:30:000
2978699109,1cyclictest35-21ksoftirqd/323:50:143
2978699109,1cyclictest35-21ksoftirqd/322:25:133
2978699109,1cyclictest35-21ksoftirqd/300:10:123
2978699109,0cyclictest35-21ksoftirqd/321:15:163
2978699108,1cyclictest35-21ksoftirqd/321:05:223
29786991010,0cyclictest35-21ksoftirqd/323:22:483
29786991010,0cyclictest35-21ksoftirqd/323:10:103
29786991010,0cyclictest35-21ksoftirqd/320:00:173
29786991010,0cyclictest35-21ksoftirqd/319:50:223
29786991010,0cyclictest35-21ksoftirqd/319:45:133
29786991010,0cyclictest35-21ksoftirqd/300:36:033
2977599108,1cyclictest28-21ksoftirqd/222:20:012
2977599108,1cyclictest28-21ksoftirqd/222:20:002
2975899103,6cyclictest31525-21perf20:20:010
2975899100,10cyclictest0-21swapper/020:56:060
297869999,0cyclictest35-21ksoftirqd/322:31:553
297869998,1cyclictest35-21ksoftirqd/323:15:183
297869998,1cyclictest35-21ksoftirqd/322:20:183
297869998,1cyclictest35-21ksoftirqd/322:10:113
297869998,1cyclictest35-21ksoftirqd/321:10:153
297869998,1cyclictest35-21ksoftirqd/321:00:153
297869998,1cyclictest35-21ksoftirqd/300:03:063
297869997,1cyclictest35-21ksoftirqd/323:55:133
297869997,1cyclictest35-21ksoftirqd/322:20:013
297869997,1cyclictest35-21ksoftirqd/322:20:013
297869993,4cyclictest35-21ksoftirqd/320:45:143
297759999,0cyclictest28-21ksoftirqd/200:00:212
297759998,1cyclictest28-21ksoftirqd/219:15:002
297759997,1cyclictest28-21ksoftirqd/223:45:002
297759991,4cyclictest19699-21apt-get19:55:132
297589999,0cyclictest22860-21diskmemload23:46:310
297589994,2cyclictest240-21systemd-journal20:25:000
297589990,4cyclictest0-21swapper/019:15:100
297589990,3cyclictest0-21swapper/000:15:120
297869988,0cyclictest35-21ksoftirqd/323:25:163
297869988,0cyclictest35-21ksoftirqd/320:50:143
297869987,1cyclictest35-21ksoftirqd/322:45:283
297869987,1cyclictest35-21ksoftirqd/319:20:013
297869987,1cyclictest35-21ksoftirqd/300:25:103
297869987,1cyclictest35-21ksoftirqd/300:25:003
297869987,0cyclictest35-21ksoftirqd/300:20:003
297869986,1cyclictest35-21ksoftirqd/320:30:163
297869986,1cyclictest35-21ksoftirqd/320:14:593
297869986,1cyclictest35-21ksoftirqd/319:25:003
297869986,0cyclictest35-21ksoftirqd/319:40:003
297869985,1cyclictest35-21ksoftirqd/322:05:003
297869980,7cyclictest0-21swapper/320:35:153
297759988,0cyclictest28-21ksoftirqd/223:45:132
297759988,0cyclictest28-21ksoftirqd/223:35:202
297759988,0cyclictest28-21ksoftirqd/200:10:142
297759987,1cyclictest28-21ksoftirqd/221:45:112
297759987,1cyclictest28-21ksoftirqd/220:00:122
297759987,1cyclictest28-21ksoftirqd/219:35:002
297759986,1cyclictest61650irq/122-eno123:15:182
297759986,1cyclictest61650irq/122-eno121:20:012
297759986,1cyclictest61650irq/122-eno100:33:012
297759986,1cyclictest28-21ksoftirqd/222:25:132
297759986,1cyclictest28-21ksoftirqd/219:25:012
297759986,1cyclictest28-21ksoftirqd/200:20:002
297759986,1cyclictest28-21ksoftirqd/200:07:412
297759982,2cyclictest13594-21apt-get21:40:112
297699980,4cyclictest0-21swapper/121:35:121
297589987,1cyclictest9-21ksoftirqd/020:55:000
297589984,2cyclictest240-21systemd-journal23:17:320
297589984,2cyclictest240-21systemd-journal22:05:000
297589983,1cyclictest11096-21sh00:30:160
297589982,4cyclictest1747-21ntpd19:10:180
297589981,6cyclictest19530-21ssh22:30:170
297589980,7cyclictest8628-21ssh23:43:580
297589980,7cyclictest0-21swapper/000:07:370
297589980,6cyclictest240-21systemd-journal22:00:000
297869976,1cyclictest35-21ksoftirqd/322:55:123
297869976,1cyclictest35-21ksoftirqd/320:20:153
297869975,1cyclictest35-21ksoftirqd/322:50:163
297869975,1cyclictest35-21ksoftirqd/320:40:143
297869975,1cyclictest35-21ksoftirqd/320:15:143
297869975,1cyclictest35-21ksoftirqd/319:40:133
297869975,1cyclictest35-21ksoftirqd/319:30:143
297869975,1cyclictest35-21ksoftirqd/319:25:153
297759976,1cyclictest61650irq/122-eno122:40:142
297759976,1cyclictest61650irq/122-eno122:10:212
297759976,1cyclictest61650irq/122-eno121:53:572
297759976,1cyclictest61650irq/122-eno121:11:462
297759976,1cyclictest61650irq/122-eno100:20:172
297759976,1cyclictest28-21ksoftirqd/223:05:112
297759976,0cyclictest28-21ksoftirqd/200:25:142
297759975,1cyclictest61650irq/122-eno123:25:112
297759975,1cyclictest61650irq/122-eno120:30:122
297759975,1cyclictest61650irq/122-eno100:35:142
297759975,1cyclictest28-21ksoftirqd/222:30:142
297759975,1cyclictest28-21ksoftirqd/220:50:142
297759973,1cyclictest0-21swapper/220:45:122
297759972,4cyclictest561-21nscd21:25:192
297759972,4cyclictest1982-21sendmail-mta22:23:212
297759971,5cyclictest32553-21sh23:30:482
297759970,1cyclictest240-21systemd-journal23:10:172
297699970,6cyclictest0-21swapper/121:50:171
297699970,6cyclictest0-21swapper/121:10:181
297699970,4cyclictest0-21swapper/122:40:161
297589976,1cyclictest9-21ksoftirqd/022:50:140
297589976,1cyclictest9-21ksoftirqd/020:49:400
297589976,1cyclictest0-21swapper/023:08:480
297589973,3cyclictest9-21ksoftirqd/019:30:170
297589973,2cyclictest240-21systemd-journal22:39:310
297589973,2cyclictest240-21systemd-journal19:24:260
297589973,1cyclictest2782-21/usr/sbin/munin00:20:140
297589971,5cyclictest25783-21ssh22:40:100
297589971,3cyclictest22860-21diskmemload23:29:490
297589971,3cyclictest22860-21diskmemload00:35:120
297589971,1cyclictest11787-21hddtemp_smartct22:20:150
297589970,7cyclictest0-21swapper/020:32:220
297589970,6cyclictest5121-1kworker/u9:000:25:090
297589970,6cyclictest4202-21apt-get22:55:010
297589970,6cyclictest4076-21ssh23:36:320
297589970,6cyclictest24234-21ssh23:20:150
297589970,6cyclictest23015-21grep20:00:140
297589970,6cyclictest22336-21grep21:05:220
297589970,6cyclictest17341-21telnet21:45:110
297589970,6cyclictest17277-21grep23:55:140
297589970,6cyclictest14146-21ntpq23:50:160
297589970,5cyclictest22860-21diskmemload21:12:100
297589970,1cyclictest7906-21ssh21:30:260
297589970,1cyclictest22860-21diskmemload22:47:220
297589970,1cyclictest22860-21diskmemload22:06:590
297589970,1cyclictest22216-21memory21:50:170
297589970,1cyclictest18079-21ssh23:11:470
297589970,1cyclictest15243-21unixbench-2d21:40:200
297589970,1cyclictest1373-21ssh21:23:320
297589970,1cyclictest0-21swapper/000:00:150
297869965,1cyclictest35-21ksoftirqd/320:05:143
297869961,3cyclictest0-21swapper/322:05:123
297759966,0cyclictest61650irq/122-eno123:55:182
297759966,0cyclictest61650irq/122-eno123:00:122
297759966,0cyclictest61650irq/122-eno122:50:012
297759966,0cyclictest61650irq/122-eno121:30:032
297759966,0cyclictest61650irq/122-eno120:44:592
297759966,0cyclictest61650irq/122-eno120:14:032
297759966,0cyclictest61650irq/122-eno120:05:082
297759966,0cyclictest61650irq/122-eno119:45:032
297759966,0cyclictest61650irq/122-eno119:40:112
297759965,1cyclictest61650irq/122-eno122:35:142
297759965,1cyclictest61650irq/122-eno120:59:592
297759965,1cyclictest28-21ksoftirqd/219:25:012
297759965,1cyclictest11626-21smartctl19:35:202
297759965,0cyclictest61650irq/122-eno121:35:162
297759964,1cyclictest61650irq/122-eno123:50:192
297759964,1cyclictest61650irq/122-eno122:05:202
297759964,1cyclictest61650irq/122-eno120:15:152
297759964,1cyclictest31877-21strings21:20:162
297759962,2cyclictest240-21systemd-journal20:40:012
297759960,1cyclictest0-21swapper/219:50:162
297699966,0cyclictest0-21swapper/122:02:551
297699963,2cyclictest0-21swapper/122:07:401
297699963,1cyclictest0-21swapper/123:58:181
297699963,1cyclictest0-21swapper/100:30:481
297699960,6cyclictest0-21swapper/123:50:311
297699960,6cyclictest0-21swapper/121:20:301
297699960,6cyclictest0-21swapper/120:56:031
297699960,6cyclictest0-21swapper/100:06:221
297699960,5cyclictest0-21swapper/120:20:151
297699960,4cyclictest203-21jbd2/sda2-800:27:551
297699960,4cyclictest0-21swapper/100:00:121
297699960,3cyclictest0-21swapper/123:10:521
297699960,2cyclictest0-21swapper/123:30:121
297589965,1cyclictest9066-21ssh22:15:280
297589965,1cyclictest9066-21ssh22:15:280
297589965,1cyclictest16115-21ntpq19:45:160
297589965,1cyclictest13717-21ntpq19:40:160
297589962,1cyclictest5507-21/usr/sbin/munin19:25:190
297589960,6cyclictest0-21swapper/023:30:150
297589960,6cyclictest0-21swapper/019:57:120
297589960,5cyclictest0-21swapper/020:40:110
297589960,1cyclictest16523-21ssh22:25:370
297589960,1cyclictest0-21swapper/021:15:110
297589960,1cyclictest0-21swapper/000:10:120
297589960,0cyclictest0-21swapper/019:50:030
297589960,0cyclictest0-21swapper/019:35:120
297759955,0cyclictest61650irq/122-eno121:00:122
297759955,0cyclictest61650irq/122-eno120:20:102
297759953,1cyclictest61650irq/122-eno120:25:112
297759952,2cyclictest21806-21needreboot21:05:182
297759950,4cyclictest30483-21cut19:10:152
297699955,0cyclictest0-21swapper/100:23:311
297699955,0cyclictest0-21swapper/100:16:241
297699955,0cyclictest0-21swapper/100:14:211
297699952,3cyclictest0-21swapper/119:50:001
297699951,4cyclictest0-21swapper/122:14:251
297699950,5cyclictest0-21swapper/123:18:171
297699950,5cyclictest0-21swapper/121:40:491
297699950,5cyclictest0-21swapper/121:07:141
297699950,5cyclictest0-21swapper/120:00:441
297699950,4cyclictest0-21swapper/123:43:191
297699950,4cyclictest0-21swapper/123:20:151
297699950,4cyclictest0-21swapper/121:16:011
297699950,3cyclictest0-21swapper/122:20:201
297699950,2cyclictest0-21swapper/122:30:161
297699950,2cyclictest0-21swapper/122:19:421
297699950,2cyclictest0-21swapper/122:19:411
297699950,2cyclictest0-21swapper/121:56:201
297699950,2cyclictest0-21swapper/120:13:161
297699950,1cyclictest0-21swapper/123:26:281
297699950,1cyclictest0-21swapper/123:05:101
297699950,1cyclictest0-21swapper/122:25:101
297699950,1cyclictest0-21swapper/121:45:161
297699950,1cyclictest0-21swapper/121:25:181
297699950,1cyclictest0-21swapper/120:25:111
297699950,0cyclictest0-21swapper/123:45:131
297699950,0cyclictest0-21swapper/100:35:371
297589953,1cyclictest25862-21grep20:05:190
297589951,3cyclictest0-21swapper/020:25:200
297589950,4cyclictest7078-21grep20:35:160
297589950,2cyclictest0-21swapper/020:10:110
297589950,1cyclictest18369-21/usr/sbin/munin21:00:110
297699944,0cyclictest0-21swapper/119:26:041
297699941,1cyclictest0-21swapper/119:50:131
297699940,4cyclictest0-21swapper/122:36:471
297699940,4cyclictest0-21swapper/119:55:161
297699940,3cyclictest26444-21taskset20:06:171
297699940,3cyclictest0-21swapper/123:00:161
297699940,2cyclictest0-21swapper/122:50:281
297699940,2cyclictest0-21swapper/120:40:011
297699940,2cyclictest0-21swapper/119:15:141
297699940,1cyclictest0-21swapper/123:35:161
297699940,1cyclictest0-21swapper/122:45:141
297699940,1cyclictest0-21swapper/121:30:111
297699940,1cyclictest0-21swapper/121:00:011
297699940,1cyclictest0-21swapper/120:30:151
297699940,1cyclictest0-21swapper/119:37:251
297699940,0cyclictest0-21swapper/119:20:191
297699931,1cyclictest0-21swapper/120:45:111
297699931,1cyclictest0-21swapper/120:15:111
297699930,3cyclictest0-21swapper/120:50:051
297699930,3cyclictest0-21swapper/119:30:201
297699930,2cyclictest0-21swapper/119:10:161
297699930,0cyclictest0-21swapper/120:40:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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