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2026-09-15 - 13:29
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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 highest latencies:
System rack1slot1.osadl.org (updated Tue Sep 15, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158292218152,22sleep20-21swapper/207:08:152
158992207157,24sleep30-21swapper/307:09:083
159532199158,26sleep00-21swapper/007:09:490
158132198159,25sleep10-21swapper/107:08:011
231612680,0sleep10-21swapper/112:34:031
1606499210,20cyclictest9110-21diskmemload12:20:122
16064991612,1cyclictest28-21ksoftirqd/212:29:382
16064991414,0cyclictest0-21swapper/212:02:302
16064991412,2cyclictest28-21ksoftirqd/209:39:132
245372130,0sleep30-21swapper/311:50:023
1605899130,0cyclictest0-21swapper/108:50:151
16064991211,1cyclictest28-21ksoftirqd/211:43:392
16064991211,1cyclictest28-21ksoftirqd/210:30:122
16050991210,1cyclictest18434-21cat07:14:590
1606499119,1cyclictest28-21ksoftirqd/211:55:152
1606499119,1cyclictest28-21ksoftirqd/210:10:002
1606499119,1cyclictest28-21ksoftirqd/210:00:202
1606499119,1cyclictest28-21ksoftirqd/209:25:002
16064991110,1cyclictest28-21ksoftirqd/212:16:132
16064991110,1cyclictest28-21ksoftirqd/211:20:152
16064991110,1cyclictest28-21ksoftirqd/209:47:272
1605099113,4cyclictest12189-21perf10:00:000
1606499109,1cyclictest28-21ksoftirqd/212:34:002
1606499109,1cyclictest28-21ksoftirqd/212:05:142
1606499109,1cyclictest28-21ksoftirqd/210:45:132
1606499109,1cyclictest28-21ksoftirqd/210:35:142
1606499109,1cyclictest28-21ksoftirqd/210:20:092
1606499109,1cyclictest28-21ksoftirqd/209:57:182
1606499108,1cyclictest28-21ksoftirqd/207:40:132
16064991010,0cyclictest28-21ksoftirqd/211:45:142
16064991010,0cyclictest28-21ksoftirqd/208:20:132
1605899100,5cyclictest0-21swapper/111:16:551
1605099108,1cyclictest9-21ksoftirqd/008:45:000
1605099108,1cyclictest9-21ksoftirqd/007:55:010
21039290,0sleep10-21swapper/110:57:511
160719998,1cyclictest35-21ksoftirqd/312:00:003
160719997,1cyclictest35-21ksoftirqd/307:15:003
160649999,0cyclictest28-21ksoftirqd/212:10:212
160649999,0cyclictest28-21ksoftirqd/209:43:262
160649998,1cyclictest28-21ksoftirqd/211:27:122
160649998,1cyclictest28-21ksoftirqd/210:55:172
160649998,1cyclictest28-21ksoftirqd/210:25:452
160649998,1cyclictest28-21ksoftirqd/209:50:172
160649998,1cyclictest28-21ksoftirqd/209:19:312
160649998,1cyclictest28-21ksoftirqd/209:05:102
160649998,1cyclictest28-21ksoftirqd/208:00:132
160649998,1cyclictest28-21ksoftirqd/207:35:142
160649998,1cyclictest28-21ksoftirqd/207:30:002
160589990,4cyclictest0-21swapper/112:01:421
160509998,1cyclictest9-21ksoftirqd/008:10:100
160509997,1cyclictest9-21ksoftirqd/007:19:590
160509991,4cyclictest23468-21apt-get12:34:590
160509990,4cyclictest4358-21perf10:35:000
160509990,3cyclictest0-21swapper/010:45:120
31386280,0sleep10-21swapper/111:12:321
160719986,1cyclictest11301-21snmpd09:45:063
160719986,1cyclictest11301-21snmpd09:31:223
160719986,1cyclictest11301-21snmpd08:10:573
160719986,1cyclictest11301-21snmpd07:34:023
160719986,1cyclictest11301-21snmpd07:21:003
160649987,1cyclictest28-21ksoftirqd/211:40:002
160649987,1cyclictest28-21ksoftirqd/211:02:492
160649987,1cyclictest28-21ksoftirqd/210:50:132
160649987,1cyclictest28-21ksoftirqd/210:15:182
160649987,1cyclictest28-21ksoftirqd/210:10:172
160649987,1cyclictest28-21ksoftirqd/209:12:152
160649986,1cyclictest61650irq/122-eno111:10:232
160649986,1cyclictest61650irq/122-eno108:15:132
160649986,1cyclictest28-21ksoftirqd/211:50:232
160649986,1cyclictest11301-21snmpd07:51:222
160649983,4cyclictest2993-21kworker/2:008:30:242
160649982,5cyclictest2993-21kworker/2:011:05:202
160649980,8cyclictest61650irq/122-eno111:32:522
160649980,7cyclictest24935-21ntpq09:30:192
160649980,5cyclictest0-21swapper/209:25:122
160649980,2cyclictest0-21swapper/208:55:142
160589981,6cyclictest0-21swapper/111:27:241
160589980,4cyclictest0-21swapper/112:15:021
160589980,4cyclictest0-21swapper/109:20:151
160589980,2cyclictest0-21swapper/109:50:121
160509986,1cyclictest11301-21snmpd09:33:370
160509983,4cyclictest6986-21apt-get09:05:120
160509982,5cyclictest769-21lldpd11:04:500
160509981,6cyclictest11225-21ssh12:15:190
160509980,7cyclictest26002-21ssh11:05:140
160509980,7cyclictest18725-21ssh12:25:520
160509980,4cyclictest28751-21perf07:35:000
160509980,1cyclictest32553-21ssh09:40:260
160509980,1cyclictest27076-21ssh12:39:500
160509980,1cyclictest20564-21ssh10:10:170
160719976,1cyclictest11301-21snmpd10:59:203
160719975,1cyclictest9110-21diskmemload12:25:173
160719975,1cyclictest30658-21cat08:45:153
160719975,1cyclictest19143-21ntpq08:20:213
160719975,1cyclictest13064-21perf12:20:013
160719975,1cyclictest11301-21snmpd12:20:583
160719975,1cyclictest11301-21snmpd11:14:233
160719975,1cyclictest11301-21snmpd10:41:353
160719975,1cyclictest11301-21snmpd08:32:043
160719975,1cyclictest11301-21snmpd07:29:483
160719975,0cyclictest9110-21diskmemload09:54:493
160719974,2cyclictest9110-21diskmemload09:57:593
160719974,1cyclictest294-21systemd-udevd11:03:083
160719974,0cyclictest9110-21diskmemload11:30:453
160719973,2cyclictest240-21systemd-journal11:18:083
160719973,1cyclictest9110-21diskmemload12:30:343
160719972,2cyclictest15007-21/usr/sbin/munin10:50:223
160719971,3cyclictest21443-21/usr/sbin/munin09:25:193
160719970,6cyclictest21065-21ssh11:45:033
160719970,4cyclictest0-21swapper/312:10:173
160719970,3cyclictest0-21swapper/310:35:253
160719970,3cyclictest0-21swapper/310:27:283
160719970,2cyclictest0-21swapper/311:40:223
160719970,1cyclictest0-21swapper/311:22:213
160649976,1cyclictest28-21ksoftirqd/212:35:212
160649976,1cyclictest28-21ksoftirqd/208:45:192
160649976,1cyclictest28-21ksoftirqd/207:30:202
160649975,1cyclictest28-21ksoftirqd/211:15:172
160649975,1cyclictest28-21ksoftirqd/208:40:182
160649974,1cyclictest240-21systemd-journal08:14:592
160649973,4cyclictest18572-21latency_hist07:15:002
160649971,5cyclictest0-21swapper/208:07:302
160589970,6cyclictest0-21swapper/112:35:111
160589970,5cyclictest0-21swapper/109:33:041
160589970,4cyclictest0-21swapper/111:42:231
160589970,4cyclictest0-21swapper/107:40:121
160589970,3cyclictest0-21swapper/110:15:171
160589970,1cyclictest0-21swapper/112:27:371
160589970,1cyclictest0-21swapper/111:55:121
160589970,1cyclictest0-21swapper/110:05:131
160509976,1cyclictest9-21ksoftirqd/009:10:140
160509976,1cyclictest3666-1kworker/u9:010:59:570
160509975,1cyclictest9110-21diskmemload12:10:220
160509975,1cyclictest7515-21ssh10:39:100
160509975,1cyclictest471-21hddtemp_smartct08:50:160
160509975,1cyclictest11301-21snmpd11:50:090
160509975,1cyclictest11301-21snmpd09:00:180
160509974,2cyclictest11301-21snmpd11:45:190
160509973,1cyclictest28933-21/usr/sbin/munin11:10:230
160509972,3cyclictest15903-21apt-get10:05:100
160509970,6cyclictest924-21ssh12:00:260
160509970,6cyclictest9110-21diskmemload11:25:130
160509970,6cyclictest3702-21/usr/sbin/munin11:20:210
160509970,6cyclictest1794-21ssh09:45:110
160509970,6cyclictest16853-21ssh09:20:110
160509970,6cyclictest14154-21ssh09:15:210
160509970,6cyclictest11920-21grep11:30:210
160509970,6cyclictest0-21swapper/011:15:130
160509970,6cyclictest0-21swapper/010:24:590
160509970,6cyclictest0-21swapper/009:51:320
160509970,6cyclictest0-21swapper/009:25:090
160509970,4cyclictest26477-21latency_hist07:30:000
160509970,4cyclictest14495-21ntp_states12:20:170
160509970,4cyclictest0-21swapper/007:45:090
160509970,1cyclictest9110-21diskmemload12:05:120
160509970,1cyclictest9110-21diskmemload10:54:490
160509970,1cyclictest9110-21diskmemload10:27:280
160509970,1cyclictest292212sleep009:35:580
160509970,1cyclictest22869-21apt-get10:15:110
160509970,1cyclictest19601-21ssh11:40:570
160509970,1cyclictest12429-21apt-get10:00:130
160719965,1cyclictest5442-21sshd07:51:383
160719965,1cyclictest29120-21ssh09:35:393
160719965,1cyclictest28762-21ssh10:22:253
160719965,1cyclictest24650-21ssh10:15:223
160719965,1cyclictest1747-21ntpd12:35:583
160719965,1cyclictest14318-21ssh10:48:393
160719965,1cyclictest11301-21snmpd07:17:473
160719965,1cyclictest11273-21ssh09:11:013
160719964,1cyclictest11301-21snmpd08:43:073
160719964,1cyclictest11301-21snmpd07:56:163
160719964,1cyclictest11301-21snmpd07:45:243
160719964,0cyclictest9110-21diskmemload10:00:193
160719963,1cyclictest9110-21diskmemload10:06:463
160719963,1cyclictest294-21systemd-udevd09:15:073
160719963,1cyclictest240-21systemd-journal11:05:003
160719962,3cyclictest0-21swapper/312:05:113
160719961,2cyclictest9110-21diskmemload11:25:193
160719960,4cyclictest9110-21diskmemload12:00:143
160719960,3cyclictest0-21swapper/309:20:103
160719960,2cyclictest0-21swapper/309:40:013
160719960,2cyclictest0-21swapper/308:55:153
160719960,1cyclictest0-21swapper/310:12:233
160649966,0cyclictest61650irq/122-eno107:55:172
160649966,0cyclictest0-21swapper/208:25:512
160649965,1cyclictest2993-21kworker/2:009:00:012
160649965,1cyclictest2993-21kworker/2:008:50:182
160649965,1cyclictest2993-21kworker/2:007:20:152
160649965,1cyclictest28-21ksoftirqd/208:35:172
160649965,1cyclictest28-21ksoftirqd/207:15:002
160649963,1cyclictest8076-21apt-get10:40:122
160649960,1cyclictest0-21swapper/207:46:402
160589964,1cyclictest0-21swapper/107:10:111
160589961,3cyclictest0-21swapper/109:10:161
160589960,6cyclictest0-21swapper/110:04:241
160589960,6cyclictest0-21swapper/107:55:241
160589960,6cyclictest0-21swapper/107:35:121
160589960,5cyclictest0-21swapper/107:30:141
160589960,4cyclictest0-21swapper/108:59:591
160589960,3cyclictest0-21swapper/112:20:171
160589960,2cyclictest0-21swapper/108:40:121
160589960,1cyclictest0-21swapper/107:51:241
160509965,1cyclictest15960-21ssh11:35:330
160509964,1cyclictest11301-21snmpd08:32:200
160509964,1cyclictest11301-21snmpd08:25:430
160509960,6cyclictest0-21swapper/008:35:180
160509960,6cyclictest0-21swapper/008:15:210
160509960,6cyclictest0-21swapper/007:38:520
160509960,6cyclictest0-21swapper/007:21:030
160509960,5cyclictest29041-21ssh11:55:170
160509960,5cyclictest12838-21sed08:09:590
160509960,3cyclictest0-21swapper/008:45:120
160509960,0cyclictest0-21swapper/010:40:130
160509960,0cyclictest0-21swapper/008:20:110
160509960,0cyclictest0-21swapper/007:42:040
160719955,0cyclictest0-21swapper/308:35:233
160719954,1cyclictest1747-21ntpd08:50:593
160719954,1cyclictest11301-21snmpd09:07:363
160719953,1cyclictest5475-21basename09:00:153
160719953,1cyclictest16105-21df_inode08:15:143
160719953,1cyclictest11301-21snmpd07:44:283
160719953,1cyclictest11301-21snmpd07:39:073
160719952,1cyclictest240-21systemd-journal08:10:003
160719951,2cyclictest20401-21taskset08:25:123
160719950,2cyclictest0-21swapper/310:30:303
160719950,1cyclictest0-21swapper/311:36:053
160589954,1cyclictest0-21swapper/110:49:171
160589950,5cyclictest0-21swapper/112:06:351
160589950,5cyclictest0-21swapper/111:53:251
160589950,5cyclictest0-21swapper/111:45:181
160589950,5cyclictest0-21swapper/111:30:171
160589950,5cyclictest0-21swapper/111:05:481
160589950,5cyclictest0-21swapper/110:42:161
160589950,5cyclictest0-21swapper/110:31:181
160589950,5cyclictest0-21swapper/109:57:261
160589950,5cyclictest0-21swapper/107:19:301
160589950,4cyclictest0-21swapper/111:00:411
160589950,3cyclictest0-21swapper/111:21:071
160589950,3cyclictest0-21swapper/109:45:261
160589950,3cyclictest0-21swapper/107:25:151
160589950,2cyclictest0-21swapper/110:50:281
160589950,2cyclictest0-21swapper/109:40:161
160589950,2cyclictest0-21swapper/109:35:131
160589950,2cyclictest0-21swapper/109:28:111
160589950,2cyclictest0-21swapper/107:45:091
160589950,1cyclictest0-21swapper/112:10:231
160589950,1cyclictest0-21swapper/108:59:561
160589950,1cyclictest0-21swapper/108:26:371
160589950,0cyclictest0-21swapper/111:36:241
160589950,0cyclictest0-21swapper/110:38:011
160509954,0cyclictest0-21swapper/007:55:140
160509951,3cyclictest0-21swapper/008:00:110
160509950,4cyclictest2056-21/usr/sbin/munin08:55:130
160719940,1cyclictest8835-21df_inode08:00:143
160589944,0cyclictest0-21swapper/109:08:511
160589943,0cyclictest0-21swapper/110:25:131
160589941,2cyclictest0-21swapper/108:35:151
160589940,4cyclictest0-21swapper/108:17:461
160589940,3cyclictest0-21swapper/108:50:001
160589940,2cyclictest0-21swapper/110:20:201
160589940,2cyclictest0-21swapper/110:10:401
160589940,2cyclictest0-21swapper/109:15:121
160589940,2cyclictest0-21swapper/108:30:131
160589940,0cyclictest0-21swapper/108:07:531
160589933,0cyclictest0-21swapper/107:20:041
160589931,1cyclictest0-21swapper/108:20:131
160589931,1cyclictest0-21swapper/108:00:111
160589930,0cyclictest0-21swapper/108:10:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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