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2026-07-29 - 05:08
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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 Wed Jul 29, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
162672236160,26sleep30-21swapper/319:05:383
163432235161,58sleep00-21swapper/019:06:350
162952201161,26sleep20-21swapper/219:05:572
163542198160,25sleep10-21swapper/119:06:441
3109521080,1sleep11672099cyclictest20:45:171
210232700,1sleep228-21ksoftirqd/221:25:152
148632550,0sleep30-21swapper/320:10:193
16731991615,1cyclictest17249-21smartctl22:05:153
16731991614,1cyclictest8428-21grep00:10:133
16731991614,1cyclictest8428-21grep00:10:133
16731991613,2cyclictest30208-21apt-get20:45:133
16731991613,2cyclictest12981-21aten_r1power_en22:00:123
1673199155,9cyclictest505-21unixbench_multi21:40:203
1673199155,9cyclictest16867-21python23:35:203
16731991514,1cyclictest25687-21grep21:30:223
25932140,0sleep30-21swapper/322:30:163
1673199145,8cyclictest27893-21aten_r1power_en20:40:123
1673199145,1cyclictest6374-21grep23:20:223
1673199145,1cyclictest11923-21cron22:45:003
1673199145,1cyclictest11923-21cron22:45:003
1673199144,9cyclictest6978-21cron21:05:003
1673199144,9cyclictest3430-21cron23:17:003
1673199144,9cyclictest29979-21ssh22:24:063
1673199144,9cyclictest23002-21apt-get23:00:133
1673199144,6cyclictest24418-21irqstats22:15:183
1673199144,2cyclictest8894-21latency_hist20:00:003
16731991413,1cyclictest9353-21diskmemload22:58:393
16731991411,2cyclictest13674-21users23:30:223
1673199134,8cyclictest16140-21ssh21:19:143
1673199134,1cyclictest25299-21fschecks_time19:25:133
1673199133,9cyclictest8744-21seq21:53:483
1673199133,9cyclictest21260-21ps22:10:183
16731991312,1cyclictest9353-21diskmemload00:33:293
16731991312,1cyclictest0-21swapper/323:50:143
16731991312,1cyclictest0-21swapper/323:40:143
16731991312,1cyclictest0-21swapper/323:10:143
16731991312,1cyclictest0-21swapper/322:45:523
16731991312,1cyclictest0-21swapper/321:55:123
16731991312,1cyclictest0-21swapper/320:50:133
16731991312,1cyclictest0-21swapper/319:24:543
16731991312,1cyclictest0-21swapper/300:38:343
16731991312,1cyclictest0-21swapper/300:17:343
16731991310,2cyclictest31350-21hddtemp_smartct22:25:133
16731991310,2cyclictest3006-21diskstats20:55:163
16709991312,1cyclictest9-21ksoftirqd/023:00:000
16709991311,1cyclictest9-21ksoftirqd/000:40:000
1670999130,1cyclictest0-21swapper/019:25:120
1673199129,2cyclictest0-21swapper/321:35:103
1673199127,4cyclictest0-21swapper/320:30:123
1673199126,5cyclictest18974-21df_inode00:25:153
1673199125,6cyclictest30230-21diskstats23:55:143
1673199123,8cyclictest27019-21/usr/sbin/munin19:30:163
1673199123,8cyclictest22536-21chrt20:25:363
1673199123,6cyclictest13369-21chrt20:09:143
1673199123,1cyclictest7154-21ssh22:36:013
1673199123,1cyclictest14891-21ssh00:20:043
16731991211,1cyclictest4221-21ssh21:45:343
16731991211,1cyclictest0-21swapper/323:05:143
16731991211,1cyclictest0-21swapper/322:50:103
16731991211,1cyclictest0-21swapper/321:27:103
16731991211,1cyclictest0-21swapper/321:10:203
16731991211,1cyclictest0-21swapper/300:06:173
16731991210,2cyclictest10017-21ssh23:25:313
16725991211,1cyclictest28-21ksoftirqd/220:36:132
1672599120,0cyclictest0-21swapper/222:10:112
16709991211,1cyclictest9-21ksoftirqd/023:35:000
16709991211,1cyclictest9-21ksoftirqd/023:15:000
16709991210,1cyclictest9-21ksoftirqd/021:40:000
1673199113,1cyclictest1744-21irqstats00:00:163
16731991110,1cyclictest9353-21diskmemload23:45:583
16731991110,1cyclictest0-21swapper/321:21:453
16731991110,1cyclictest0-21swapper/319:15:143
1672599110,11cyclictest0-21swapper/222:03:082
16709991110,1cyclictest9-21ksoftirqd/023:10:000
46132100,1sleep20-21swapper/223:20:022
1673199105,4cyclictest0-21swapper/319:35:113
1673199105,2cyclictest240-21systemd-journal20:39:593
1672599108,1cyclictest28-21ksoftirqd/219:50:002
1672599106,0cyclictest0-21swapper/221:19:052
1672599101,4cyclictest8691-21apt-get22:40:112
1672599101,4cyclictest8691-21apt-get22:40:112
1670999109,1cyclictest9-21ksoftirqd/023:44:590
1670999109,1cyclictest9-21ksoftirqd/022:25:180
1670999109,0cyclictest9-21ksoftirqd/000:10:000
1670999108,1cyclictest9-21ksoftirqd/021:40:130
1670999108,1cyclictest9-21ksoftirqd/000:35:000
30069290,0sleep20-21swapper/223:10:122
167319994,2cyclictest240-21systemd-journal21:10:013
167319994,2cyclictest240-21systemd-journal21:10:013
167319992,4cyclictest0-21swapper/320:00:133
167319992,4cyclictest0-21swapper/319:40:103
167319990,3cyclictest0-21swapper/320:15:133
167259997,1cyclictest28-21ksoftirqd/221:57:312
167259994,2cyclictest240-21systemd-journal20:30:002
167099998,1cyclictest9-21ksoftirqd/022:40:130
167099998,1cyclictest9-21ksoftirqd/022:40:120
167099998,1cyclictest9-21ksoftirqd/019:45:220
167099997,1cyclictest9-21ksoftirqd/022:35:130
167099990,4cyclictest29245-21apt-get23:55:000
167319985,2cyclictest4913-21fschecks_time19:50:153
167319985,2cyclictest2187-21cpuspeed_turbos19:45:153
167319985,2cyclictest19423-21memory20:20:143
167319985,2cyclictest16901-21apt-get19:10:153
167259988,0cyclictest0-21swapper/200:17:582
167259987,1cyclictest28-21ksoftirqd/219:20:012
167259986,1cyclictest61650irq/122-eno123:10:002
167259986,1cyclictest11301-21snmpd22:59:072
167259985,1cyclictest61650irq/122-eno122:16:592
167259981,1cyclictest0-21swapper/220:55:142
167259980,7cyclictest0-21swapper/219:40:282
167259980,0cyclictest0-21swapper/223:44:252
167209980,4cyclictest0-21swapper/121:35:091
167209980,4cyclictest0-21swapper/121:22:191
167099988,0cyclictest9-21ksoftirqd/023:20:150
167099987,1cyclictest9-21ksoftirqd/023:50:000
167099987,1cyclictest9-21ksoftirqd/021:25:000
167099987,1cyclictest9-21ksoftirqd/019:25:000
167099987,1cyclictest15315-21ssh21:16:510
167099986,1cyclictest11301-21snmpd20:40:230
167099985,3cyclictest9477-21ssh21:55:130
167099983,4cyclictest819-21/usr/sbin/munin00:00:190
167099983,4cyclictest0-21swapper/020:05:150
167099982,2cyclictest29564-21apt-get19:35:010
167099981,6cyclictest17200-21ssh22:05:150
167099981,3cyclictest15470-21perf22:50:010
167099980,1cyclictest14182-21sed22:00:180
167259976,1cyclictest61650irq/122-eno121:37:392
167259976,1cyclictest61650irq/122-eno119:20:122
167259976,1cyclictest28-21ksoftirqd/220:05:112
167259976,0cyclictest61650irq/122-eno122:50:132
167259975,1cyclictest61650irq/122-eno122:45:232
167259975,1cyclictest61650irq/122-eno122:25:162
167259975,1cyclictest61650irq/122-eno100:30:182
167259975,1cyclictest11301-21snmpd20:42:412
167259975,1cyclictest11301-21snmpd20:11:162
167259975,1cyclictest11301-21snmpd19:33:422
167259975,1cyclictest11301-21snmpd19:10:202
167259975,1cyclictest11301-21snmpd00:02:372
167259972,1cyclictest9353-21diskmemload23:35:122
167259971,6cyclictest0-21swapper/219:51:482
167259971,5cyclictest61650irq/122-eno100:35:112
167259970,6cyclictest7857-21apt00:10:102
167259970,6cyclictest7857-21apt00:10:102
167259970,4cyclictest0-21swapper/221:54:002
167259970,3cyclictest0-21swapper/223:26:332
167259970,1cyclictest0-21swapper/220:18:552
167209971,3cyclictest0-21swapper/122:45:131
167209970,6cyclictest0-21swapper/123:38:511
167209970,6cyclictest0-21swapper/123:12:241
167209970,6cyclictest0-21swapper/122:53:321
167209970,6cyclictest0-21swapper/121:45:371
167209970,6cyclictest0-21swapper/121:42:001
167209970,6cyclictest0-21swapper/121:30:511
167209970,6cyclictest0-21swapper/100:14:291
167209970,6cyclictest0-21swapper/100:14:291
167209970,4cyclictest0-21swapper/122:05:111
167209970,4cyclictest0-21swapper/119:20:121
167209970,1cyclictest0-21swapper/123:50:571
167209970,1cyclictest0-21swapper/122:30:121
167209970,1cyclictest0-21swapper/119:35:061
167209970,1cyclictest0-21swapper/100:33:261
167099976,1cyclictest9-21ksoftirqd/023:20:000
167099976,1cyclictest9-21ksoftirqd/021:00:010
167099976,1cyclictest24398-21cat22:15:180
167099975,1cyclictest9-21ksoftirqd/019:56:460
167099975,1cyclictest30180-21cat23:55:140
167099975,1cyclictest2562-21cat22:30:160
167099975,1cyclictest16108-21hostname20:15:130
167099971,6cyclictest8125-1kworker/u9:123:25:140
167099971,6cyclictest0-21swapper/020:33:520
167099971,0cyclictest9-21ksoftirqd/021:25:060
167099970,6cyclictest24034-21ssh21:30:120
167099970,6cyclictest19614-21gltestperf19:15:010
167099970,6cyclictest17335-21sh23:35:460
167099970,6cyclictest10665-21grep20:00:190
167099970,6cyclictest0-21swapper/022:50:130
167099970,6cyclictest0-21swapper/022:20:130
167099970,6cyclictest0-21swapper/021:10:160
167099970,6cyclictest0-21swapper/000:25:140
167099970,5cyclictest31534-21kworker/0:100:20:220
167099970,5cyclictest0-21swapper/020:35:180
167099970,1cyclictest4166-21ssh21:45:220
167099970,1cyclictest2257-21latency_hist20:54:590
167099970,1cyclictest0-21swapper/023:00:140
167099970,1cyclictest0-21swapper/020:25:200
167099970,1cyclictest0-21swapper/020:10:130
167099970,1cyclictest0-21swapper/019:10:150
167099970,1cyclictest0-21swapper/000:15:440
167259966,0cyclictest61650irq/122-eno123:50:172
167259966,0cyclictest61650irq/122-eno123:30:142
167259966,0cyclictest61650irq/122-eno123:18:152
167259966,0cyclictest61650irq/122-eno122:35:112
167259966,0cyclictest61650irq/122-eno122:30:042
167259966,0cyclictest61650irq/122-eno121:45:222
167259966,0cyclictest61650irq/122-eno121:30:192
167259966,0cyclictest61650irq/122-eno121:20:082
167259966,0cyclictest61650irq/122-eno121:11:352
167259966,0cyclictest61650irq/122-eno121:03:532
167259966,0cyclictest61650irq/122-eno120:45:422
167259966,0cyclictest61650irq/122-eno120:34:432
167259966,0cyclictest61650irq/122-eno119:59:122
167259966,0cyclictest61650irq/122-eno100:25:172
167259966,0cyclictest61650irq/122-eno100:21:492
167259966,0cyclictest61650irq/122-eno100:05:142
167259965,1cyclictest61650irq/122-eno123:45:142
167259965,1cyclictest61650irq/122-eno122:20:152
167259964,1cyclictest895-21grep20:50:172
167259964,1cyclictest61650irq/122-eno123:55:112
167259964,1cyclictest61650irq/122-eno121:40:152
167259964,1cyclictest28-21ksoftirqd/219:25:132
167259964,1cyclictest11301-21snmpd19:35:092
167259963,1cyclictest240-21systemd-journal20:20:012
167259962,2cyclictest61650irq/122-eno123:00:082
167259960,5cyclictest0-21swapper/222:05:152
167209961,3cyclictest0-21swapper/123:15:131
167209961,3cyclictest0-21swapper/121:50:131
167209960,6cyclictest0-21swapper/123:34:281
167209960,6cyclictest0-21swapper/121:15:371
167209960,6cyclictest0-21swapper/120:20:101
167209960,6cyclictest0-21swapper/119:45:541
167209960,5cyclictest0-21swapper/122:42:461
167209960,5cyclictest0-21swapper/122:42:461
167209960,5cyclictest0-21swapper/122:27:221
167209960,5cyclictest0-21swapper/121:08:061
167209960,5cyclictest0-21swapper/121:08:051
167209960,5cyclictest0-21swapper/120:00:521
167209960,5cyclictest0-21swapper/119:30:121
167209960,5cyclictest0-21swapper/100:35:411
167209960,5cyclictest0-21swapper/100:07:271
167209960,4cyclictest0-21swapper/123:55:081
167209960,4cyclictest0-21swapper/122:19:561
167209960,4cyclictest0-21swapper/122:00:301
167209960,3cyclictest0-21swapper/122:35:151
167209960,2cyclictest0-21swapper/121:55:121
167209960,1cyclictest0-21swapper/123:20:051
167209960,1cyclictest0-21swapper/119:53:061
167099965,1cyclictest9-21ksoftirqd/021:05:130
167099965,1cyclictest9-21ksoftirqd/021:05:120
167099965,1cyclictest9-21ksoftirqd/021:00:120
167099965,1cyclictest9-21ksoftirqd/020:20:120
167099965,1cyclictest7854-21/usr/sbin/munin00:10:140
167099965,1cyclictest7854-21/usr/sbin/munin00:10:140
167099965,1cyclictest7740-21ssh21:50:340
167099965,1cyclictest18791-1kworker/u9:222:10:200
167099960,6cyclictest0-21swapper/019:30:470
167099960,5cyclictest0-21swapper/019:50:110
167099960,0cyclictest0-21swapper/019:40:180
167259955,0cyclictest61650irq/122-eno121:05:112
167259955,0cyclictest61650irq/122-eno121:05:112
167259955,0cyclictest61650irq/122-eno120:01:402
167209955,0cyclictest0-21swapper/119:40:291
167209952,2cyclictest0-21swapper/123:05:351
167209951,2cyclictest0-21swapper/120:15:131
167209950,5cyclictest0-21swapper/123:45:181
167209950,5cyclictest0-21swapper/122:12:551
167209950,5cyclictest0-21swapper/121:11:361
167209950,5cyclictest0-21swapper/100:23:051
167209950,4cyclictest0-21swapper/119:29:591
167209950,3cyclictest0-21swapper/123:25:531
167209950,2cyclictest0-21swapper/123:04:431
167209950,2cyclictest0-21swapper/122:20:211
167209950,2cyclictest0-21swapper/100:26:021
167209950,1cyclictest0-21swapper/122:55:161
167209950,1cyclictest0-21swapper/100:02:571
167209950,0cyclictest0-21swapper/123:42:001
167209950,0cyclictest0-21swapper/121:26:331
167099951,2cyclictest30454-21grep20:45:140
167209942,1cyclictest13390-21chrt00:16:041
167209941,2cyclictest0-21swapper/120:55:121
167209941,2cyclictest0-21swapper/120:35:121
167209941,1cyclictest0-21swapper/119:10:161
167209940,4cyclictest0-21swapper/120:54:001
167209940,2cyclictest0-21swapper/120:44:591
167209940,2cyclictest0-21swapper/120:05:111
167209940,1cyclictest0-21swapper/120:10:151
167209940,1cyclictest0-21swapper/119:15:231
167209931,1cyclictest0-21swapper/120:25:121
167209931,1cyclictest0-21swapper/119:55:101
167209930,3cyclictest0-21swapper/121:00:111
167209930,1cyclictest0-21swapper/120:30:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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