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2025-12-20 - 11:00
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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 Sat Dec 20, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311032217152,21sleep20-21swapper/219:08:342
309302211150,49sleep30-21swapper/319:06:183
310442207170,24sleep00-21swapper/019:07:480
311222199162,24sleep10-21swapper/119:08:491
31303991413,1cyclictest28-21ksoftirqd/222:25:012
3130399119,1cyclictest28-21ksoftirqd/223:10:002
3129399119,1cyclictest9-21ksoftirqd/022:20:000
3131399100,6cyclictest32241-21python20:15:213
3130399109,1cyclictest28-21ksoftirqd/220:10:002
3130399109,0cyclictest28-21ksoftirqd/200:05:002
3130399100,10cyclictest0-21swapper/219:33:322
3129399101,4cyclictest13940-21perf19:40:000
3129399100,5cyclictest20616-21latency_hist22:10:000
313039998,1cyclictest28-21ksoftirqd/222:50:012
313039997,1cyclictest28-21ksoftirqd/222:10:002
312939997,1cyclictest9-21ksoftirqd/020:15:000
312939993,5cyclictest1250-21sed19:15:000
312939992,4cyclictest5758-21cat23:55:000
312939992,3cyclictest707-21snmpd21:40:000
313139986,1cyclictest707-21snmpd22:12:163
313139986,1cyclictest707-21snmpd22:12:153
313139986,1cyclictest707-21snmpd20:59:403
313139986,1cyclictest3717-21perf21:35:003
313139986,1cyclictest35-21ksoftirqd/322:10:003
313139981,1cyclictest25877-21/usr/sbin/munin21:10:203
313139980,3cyclictest0-21swapper/319:30:113
313139980,2cyclictest0-21swapper/320:35:123
313039986,1cyclictest61650irq/122-eno122:35:152
313039986,1cyclictest61650irq/122-eno120:45:182
313039986,1cyclictest28-21ksoftirqd/222:10:152
313039986,1cyclictest28-21ksoftirqd/222:10:152
313039981,1cyclictest0-21swapper/200:19:272
312939986,1cyclictest707-21snmpd23:39:290
312939986,1cyclictest707-21snmpd20:04:510
312939984,2cyclictest240-21systemd-journal00:20:000
312939982,5cyclictest28845-21latency_hist21:20:000
312939982,5cyclictest21534-21chrt21:02:050
312939980,4cyclictest32445-21perf22:35:000
312939980,4cyclictest19466-21date21:00:000
313139976,1cyclictest1747-21ntpd20:20:593
313139976,1cyclictest1747-21ntpd00:30:593
313139975,1cyclictest707-21snmpd23:56:413
313139975,1cyclictest707-21snmpd23:37:383
313139975,1cyclictest707-21snmpd23:11:373
313139975,1cyclictest707-21snmpd23:09:523
313139975,1cyclictest707-21snmpd22:59:103
313139975,1cyclictest707-21snmpd22:51:433
313139975,1cyclictest707-21snmpd21:01:583
313139975,1cyclictest707-21snmpd20:10:093
313139975,1cyclictest707-21snmpd20:03:243
313139975,1cyclictest707-21snmpd19:49:123
313139975,1cyclictest707-21snmpd19:42:473
313139975,1cyclictest707-21snmpd19:26:533
313139975,1cyclictest707-21snmpd19:12:323
313139975,1cyclictest707-21snmpd00:15:543
313139975,1cyclictest6098-21ntpq22:45:173
313139975,1cyclictest3020-21cat19:15:173
313139975,1cyclictest1747-21ntpd20:25:593
313139975,1cyclictest1747-21ntpd00:20:593
313139975,1cyclictest14451-21cat21:55:153
313139973,1cyclictest19043-21apt-get19:50:113
313139971,3cyclictest12576-21apt-get20:45:123
313039977,0cyclictest28-21ksoftirqd/223:15:162
313039976,1cyclictest8195-21cat22:50:142
313039976,1cyclictest61650irq/122-eno123:25:512
313039976,1cyclictest61650irq/122-eno122:30:122
313039976,1cyclictest61650irq/122-eno121:35:192
313039976,1cyclictest3006-21cat19:15:172
313039976,1cyclictest28-21ksoftirqd/200:35:202
313039975,1cyclictest707-21snmpd21:26:592
313039975,1cyclictest707-21snmpd00:07:332
313039975,1cyclictest61650irq/122-eno123:55:142
313039975,1cyclictest28-21ksoftirqd/223:45:002
313039975,1cyclictest28-21ksoftirqd/221:50:002
313039975,1cyclictest28-21ksoftirqd/221:20:002
313039975,1cyclictest28-21ksoftirqd/220:25:002
313039975,1cyclictest28-21ksoftirqd/219:30:002
313039974,2cyclictest4826-21cstates19:20:112
313039973,2cyclictest240-21systemd-journal23:55:002
313039970,3cyclictest0-21swapper/222:05:002
313039970,1cyclictest3114-21df_inode22:40:142
313039970,1cyclictest0-21swapper/221:02:402
312979970,6cyclictest0-21swapper/122:59:221
312979970,1cyclictest0-21swapper/123:26:111
312979970,1cyclictest0-21swapper/121:43:261
312979970,1cyclictest0-21swapper/120:55:281
312979970,1cyclictest0-21swapper/100:11:061
312939976,1cyclictest9-21ksoftirqd/021:56:480
312939976,1cyclictest9-21ksoftirqd/019:50:000
312939976,1cyclictest707-21snmpd00:34:520
312939975,1cyclictest707-21snmpd23:22:170
312939975,1cyclictest707-21snmpd22:55:040
312939975,1cyclictest707-21snmpd22:20:240
312939973,2cyclictest240-21systemd-journal20:45:000
312939970,6cyclictest5404-21irqstats19:20:140
312939970,6cyclictest19563-21runrttasks00:21:060
312939970,6cyclictest16657-21df_inode22:00:130
312939970,6cyclictest0-21swapper/021:25:010
312939970,6cyclictest0-21swapper/000:06:060
312939970,4cyclictest0-21swapper/023:15:140
312939970,3cyclictest0-21swapper/023:40:130
312939970,1cyclictest9186-21perf19:30:000
312939970,1cyclictest0-21swapper/023:30:160
312939970,1cyclictest0-21swapper/021:45:140
312939970,1cyclictest0-21swapper/019:30:190
313139965,1cyclictest9801-21ntpq21:45:173
313139965,1cyclictest35-21ksoftirqd/320:50:123
313139965,1cyclictest28825-21cat22:25:163
313139965,1cyclictest1747-21ntpd23:00:593
313139965,1cyclictest1747-21ntpd22:20:593
313139964,1cyclictest707-21snmpd23:23:233
313139964,1cyclictest707-21snmpd21:23:413
313139964,1cyclictest707-21snmpd20:40:073
313139964,1cyclictest32113-21sshd22:31:163
313139964,1cyclictest1747-21ntpd22:35:593
313139963,1cyclictest240-21systemd-journal21:40:003
313139960,6cyclictest28532-21sshd21:16:163
313139960,4cyclictest0-21swapper/321:50:123
313139960,2cyclictest3072-21cstates22:40:143
313139960,1cyclictest240-21systemd-journal21:44:553
313139960,1cyclictest1746-21df23:45:153
313139960,1cyclictest0-21swapper/323:25:143
313039966,0cyclictest61650irq/122-eno123:30:122
313039966,0cyclictest61650irq/122-eno122:55:202
313039966,0cyclictest61650irq/122-eno121:52:112
313039966,0cyclictest61650irq/122-eno121:05:122
313039966,0cyclictest61650irq/122-eno120:59:502
313039966,0cyclictest61650irq/122-eno120:30:122
313039966,0cyclictest61650irq/122-eno100:28:272
313039965,1cyclictest61650irq/122-eno100:14:512
313039965,1cyclictest28-21ksoftirqd/223:20:132
313039965,1cyclictest28-21ksoftirqd/223:00:002
313039965,1cyclictest28-21ksoftirqd/220:50:122
313039965,1cyclictest28-21ksoftirqd/220:10:132
313039965,1cyclictest28-21ksoftirqd/220:00:002
313039964,1cyclictest707-21snmpd19:10:352
313039964,1cyclictest61650irq/122-eno121:20:122
313039964,1cyclictest28-21ksoftirqd/223:10:142
313039964,1cyclictest28-21ksoftirqd/221:55:132
313039964,1cyclictest28-21ksoftirqd/220:00:142
313039964,1cyclictest28-21ksoftirqd/219:50:132
313039964,1cyclictest28-21ksoftirqd/200:35:002
313039964,1cyclictest28-21ksoftirqd/200:20:132
313039960,6cyclictest0-21swapper/222:28:152
313039960,6cyclictest0-21swapper/219:35:182
313039960,4cyclictest0-21swapper/220:25:112
313039960,2cyclictest0-21swapper/221:30:122
313039960,2cyclictest0-21swapper/219:45:122
313039960,1cyclictest0-21swapper/222:20:002
313039960,1cyclictest0-21swapper/220:35:122
312979965,1cyclictest0-21swapper/121:04:401
312979963,2cyclictest21361-21chrt22:10:141
312979963,2cyclictest21361-21chrt22:10:141
312979961,4cyclictest0-21swapper/123:00:211
312979960,6cyclictest0-21swapper/122:46:161
312979960,6cyclictest0-21swapper/122:30:361
312979960,6cyclictest0-21swapper/121:15:401
312979960,6cyclictest0-21swapper/120:48:491
312979960,6cyclictest0-21swapper/120:30:341
312979960,6cyclictest0-21swapper/119:49:511
312979960,6cyclictest0-21swapper/119:40:321
312979960,6cyclictest0-21swapper/119:20:231
312979960,6cyclictest0-21swapper/119:19:181
312979960,6cyclictest0-21swapper/100:22:361
312979960,5cyclictest0-21swapper/123:15:181
312979960,5cyclictest0-21swapper/122:35:541
312979960,4cyclictest0-21swapper/123:51:121
312979960,4cyclictest0-21swapper/121:50:001
312979960,4cyclictest0-21swapper/119:50:131
312979960,0cyclictest0-21swapper/120:20:131
312939965,1cyclictest707-21snmpd22:12:390
312939965,1cyclictest707-21snmpd22:12:390
312939965,1cyclictest707-21snmpd21:13:130
312939965,1cyclictest707-21snmpd20:50:520
312939965,1cyclictest707-21snmpd20:26:270
312939964,1cyclictest707-21snmpd21:34:290
312939964,1cyclictest30093-21latency_hist22:30:000
312939964,1cyclictest14753-21cat23:05:010
312939963,1cyclictest240-21systemd-journal20:50:000
312939962,2cyclictest240-21systemd-journal22:50:000
312939960,6cyclictest0-21swapper/023:55:120
312939960,6cyclictest0-21swapper/023:10:130
312939960,6cyclictest0-21swapper/019:15:040
312939960,6cyclictest0-21swapper/000:29:270
312939960,6cyclictest0-21swapper/000:10:120
312939960,5cyclictest0-21swapper/021:50:120
312939960,5cyclictest0-21swapper/020:30:120
312939960,5cyclictest0-21swapper/000:00:120
312939960,3cyclictest0-21swapper/023:45:130
312939960,2cyclictest0-21swapper/021:05:120
312939960,1cyclictest25428-21fschecks_time00:35:140
312939960,1cyclictest22199-21sshd19:55:160
312939960,0cyclictest0-21swapper/022:52:010
312939960,0cyclictest0-21swapper/022:43:400
312939960,0cyclictest0-21swapper/022:39:010
312939960,0cyclictest0-21swapper/021:29:420
312939960,0cyclictest0-21swapper/020:38:460
312939960,0cyclictest0-21swapper/019:51:530
313139954,1cyclictest707-21snmpd20:33:553
313139954,1cyclictest25695-21cat00:35:153
313139954,1cyclictest1747-21ntpd22:00:593
313139953,1cyclictest707-21snmpd23:30:263
313139953,1cyclictest707-21snmpd21:07:583
313139953,1cyclictest24276-21/usr/sbin/munin22:15:173
313139953,1cyclictest20107-21taskset00:25:073
313139952,1cyclictest240-21systemd-journal00:10:003
313139951,2cyclictest27607-21/usr/sbin/munin20:05:213
313139951,1cyclictest21500-21seq23:18:383
313139950,5cyclictest0-21swapper/319:59:013
313139950,1cyclictest13040-21cut00:10:123
313139950,0cyclictest0-21swapper/300:01:173
313039955,0cyclictest61650irq/122-eno121:40:072
313039955,0cyclictest61650irq/122-eno120:15:212
313039954,1cyclictest24367-21apt-get21:10:122
313039950,2cyclictest0-21swapper/223:45:142
313039950,1cyclictest0-21swapper/223:35:122
313039950,1cyclictest0-21swapper/219:40:182
312979955,0cyclictest0-21swapper/121:53:181
312979955,0cyclictest0-21swapper/120:12:311
312979953,1cyclictest84872sleep120:35:151
312979953,1cyclictest0-21swapper/120:50:141
312979951,3cyclictest0-21swapper/100:30:171
312979951,2cyclictest0-21swapper/122:25:201
312979951,0cyclictest218722sleep123:20:121
312979950,5cyclictest0-21swapper/123:15:001
312979950,5cyclictest0-21swapper/122:52:501
312979950,5cyclictest0-21swapper/122:02:501
312979950,5cyclictest0-21swapper/121:59:061
312979950,5cyclictest0-21swapper/121:27:471
312979950,5cyclictest0-21swapper/121:06:281
312979950,5cyclictest0-21swapper/120:26:111
312979950,5cyclictest0-21swapper/120:05:271
312979950,5cyclictest0-21swapper/100:38:491
312979950,4cyclictest0-21swapper/123:05:151
312979950,4cyclictest0-21swapper/121:20:141
312979950,4cyclictest0-21swapper/120:15:151
312979950,2cyclictest0-21swapper/120:40:151
312979950,2cyclictest0-21swapper/100:05:171
312979950,0cyclictest0-21swapper/123:57:011
312979950,0cyclictest0-21swapper/122:18:491
312979950,0cyclictest0-21swapper/119:36:111
312939955,0cyclictest0-21swapper/023:25:130
312939954,1cyclictest13384-21ntpq23:00:180
312939953,1cyclictest787-21apt-get20:20:130
312939952,1cyclictest6405-21aten2.4-expect21:40:110
312939950,0cyclictest0-21swapper/020:15:180
312939950,0cyclictest0-21swapper/020:05:150
312939950,0cyclictest0-21swapper/019:42:230
313139943,1cyclictest12642-21cat19:35:173
313139940,3cyclictest4501-21apt-get19:20:103
313139940,3cyclictest0-21swapper/321:25:143
313139940,1cyclictest240-21systemd-journal23:40:003
313139940,1cyclictest0-21swapper/323:50:103
313039940,3cyclictest10491-21grep20:40:112
312979944,0cyclictest0-21swapper/123:47:051
312979944,0cyclictest0-21swapper/123:34:281
312979944,0cyclictest0-21swapper/122:22:331
312979944,0cyclictest0-21swapper/121:31:541
312979943,1cyclictest234112sleep119:58:511
312979943,1cyclictest10074-21chrt00:00:241
312979941,1cyclictest0-21swapper/119:30:391
312979940,4cyclictest0-21swapper/100:16:161
312979940,1cyclictest0-21swapper/122:05:151
312979940,1cyclictest0-21swapper/121:35:141
312979940,0cyclictest0-21swapper/123:40:201
312979940,0cyclictest0-21swapper/121:14:361
312979940,0cyclictest0-21swapper/120:00:201
312979932,1cyclictest9362sleep119:11:491
312979931,1cyclictest0-21swapper/122:40:121
312979930,2cyclictest0-21swapper/119:25:121
312979930,2cyclictest0-21swapper/100:25:121
312979930,1cyclictest0-21swapper/123:35:151
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