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2026-05-06 - 20:55
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack1slot2.osadl.org (updated Wed May 06, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193224736,0sleep20-21swapper/207:18:172
187824030,0sleep30-21swapper/307:17:423
193623524,0sleep10-21swapper/107:18:201
202323127,0sleep00-21swapper/007:19:190
2336991111,0cyclictest0-21swapper/009:22:270
4160,0ktimersoftd/00-21swapper/010:24:380
35160,0ktimersoftd/30-21swapper/310:24:383
339960,0migration/36125-21ksmtuned11:44:503
339960,0migration/34740-21sh12:41:273
339960,0migration/323695-21sh10:41:593
339960,0migration/319927-21unixbench-2d07:52:253
339960,0migration/318682-21sh10:00:453
339960,0migration/318278-21sh11:13:173
339960,0migration/312316-21kthreadcore08:57:163
29815060,0irq/29-eth0-tx-9983-21munin-node08:12:210
29805060,0irq/28-eth0-rx-7968-21kthreadcore07:22:193
29805060,0irq/28-eth0-rx-31900-21sshd10:45:433
29805060,0irq/28-eth0-rx-20068-21tr12:12:183
29805060,0irq/28-eth0-rx-16084-21tr11:32:173
23379965,0cyclictest0-21swapper/110:07:131
23379960,0cyclictest0-21swapper/111:19:061
23379960,0cyclictest0-21swapper/111:09:201
149960,0migration/07981-21sh12:03:470
149960,0migration/03745-21kthreadcore11:42:180
149960,0migration/026692-21switchtime12:32:260
8305050,0irq/26-0000:00:9997-21turbostat.cron08:57:002
8305050,0irq/26-0000:00:0-21swapper/207:52:002
35150,0ktimersoftd/30-21swapper/310:30:283
339950,0migration/37771-21taskset12:03:113
339950,0migration/37693-21fschecks_count11:47:153
339950,0migration/35428-21kthreadcore11:07:183
339950,0migration/33261-21kthreadcore10:47:183
339950,0migration/331789-21munin-node09:32:113
339950,0migration/331577-21taskset09:11:563
339950,0migration/331336-21kthreadcore08:47:183
339950,0migration/32954-21cpuspeed_turbos08:07:123
339950,0migration/328393-21runrttasks12:36:183
339950,0migration/324711-21fschecks_count07:37:123
339950,0migration/322832-21munin-node07:32:193
339950,0migration/321460-21fschecks_time07:57:133
339950,0migration/317291-21aten_r1power_fr08:17:103
339950,0migration/313809-21aten_r1power_fr08:37:113
339950,0migration/31251-21sh11:04:183
339950,0migration/312491-21latency09:17:193
339950,0migration/312144-21taskset11:28:503
339950,0migration/310715-21munin-node10:12:233
339950,0migration/310297-21irqcore10:52:193
339950,0migration/310268-21cpuspeed_turbos08:12:123
329950,0watchdog/329080-21sh11:37:483
329950,0watchdog/319762-21sed10:02:113
329950,0watchdog/311890-21cut07:27:193
29815050,0irq/29-eth0-tx-8072-21munin-node09:37:132
29815050,0irq/29-eth0-tx-6109-21tr11:07:182
29815050,0irq/29-eth0-tx-4912-21munin-node11:27:132
29815050,0irq/29-eth0-tx-28932-21seq10:23:552
29815050,0irq/29-eth0-tx-2608-21netstat12:37:202
29815050,0irq/29-eth0-tx-21257-21cut12:32:142
29815050,0irq/29-eth0-tx-21228-21ssh09:24:142
29815050,0irq/29-eth0-tx-13524-21munin-node07:52:210
29815050,0irq/29-eth0-tx-0-21swapper/212:05:472
29815050,0irq/29-eth0-tx-0-21swapper/210:32:212
29815050,0irq/29-eth0-tx-0-21swapper/210:15:542
29815050,0irq/29-eth0-tx-0-21swapper/008:07:200
29815050,0irq/29-eth0-tx-0-21swapper/007:57:110
29815050,0irq/29-eth0-tx-0-21swapper/007:38:540
29805050,0irq/28-eth0-rx-7170-21fschecks_count10:32:143
29805050,0irq/28-eth0-rx-28607-21fschecks_count10:07:143
29805050,0irq/28-eth0-rx-26379-21tune2fs09:47:133
29805050,0irq/28-eth0-rx-21065-21ssh09:23:453
29805050,0irq/28-eth0-rx-2073-21ssh09:52:103
29805050,0irq/28-eth0-rx-19975-21kthreadcore11:52:183
29805050,0irq/28-eth0-rx-12389-21kthreadcore12:07:183
29805050,0irq/28-eth0-rx-0-21swapper/312:45:153
29805050,0irq/28-eth0-rx-0-21swapper/312:29:523
29805050,0irq/28-eth0-rx-0-21swapper/312:25:283
29805050,0irq/28-eth0-rx-0-21swapper/311:20:343
29805050,0irq/28-eth0-rx-0-21swapper/310:59:313
29805050,0irq/28-eth0-rx-0-21swapper/310:19:433
29805050,0irq/28-eth0-rx-0-21swapper/309:37:123
29805050,0irq/28-eth0-rx-0-21swapper/309:27:183
27150,0ktimersoftd/20-21swapper/212:12:382
259950,0migration/29885-21kthreadcore08:32:182
259950,0migration/231791-21irqrtprio10:27:182
259950,0migration/22626-21aten_r1power_en07:22:122
259950,0migration/226114-21kthreadcore09:27:182
259950,0migration/223723-21unixbench_multi08:17:262
259950,0migration/223431-21sh11:54:512
259950,0migration/21615-21missed_timers10:07:202
259950,0migration/213920-21fschecks_time10:17:132
249950,0watchdog/226244-21ssh10:02:472
23389955,0cyclictest0-21swapper/212:07:212
23389955,0cyclictest0-21swapper/211:22:252
23379955,0cyclictest0-21swapper/112:19:481
23379955,0cyclictest0-21swapper/111:01:081
23379955,0cyclictest0-21swapper/110:42:221
23379955,0cyclictest0-21swapper/110:31:301
23379955,0cyclictest0-21swapper/110:13:221
23379955,0cyclictest0-21swapper/109:34:441
23379954,0cyclictest6497-21turbostat.cron09:17:001
23379950,0cyclictest0-21swapper/110:51:211
23379950,0cyclictest0-21swapper/110:36:321
23379950,0cyclictest0-21swapper/110:02:101
23379950,0cyclictest0-21swapper/109:23:141
23379950,0cyclictest0-21swapper/107:27:491
23369955,0cyclictest0-21swapper/010:35:470
23369955,0cyclictest0-21swapper/010:00:470
23369950,0cyclictest0-21swapper/011:16:370
23369950,0cyclictest0-21swapper/010:57:320
23369950,0cyclictest0-21swapper/010:18:260
19150,0ktimersoftd/10-21swapper/112:32:301
19150,0ktimersoftd/10-21swapper/112:12:381
19150,0ktimersoftd/10-21swapper/110:56:051
179950,0migration/18919-21kthreadcore11:47:191
179950,0migration/18542-21munin-node09:52:231
179950,0migration/16185-21munin-node12:42:141
179950,0migration/128503-21latency_hist11:22:011
179950,0migration/124122-21latency_hist07:37:001
179950,0migration/112442-21kthreadcore09:17:191
149950,0migration/07588-21kthreadcore11:27:180
149950,0migration/05642-21sh10:29:580
149950,0migration/0501-21cpuspeed_turbos10:47:130
149950,0migration/029092-21kthreadcore11:57:190
149950,0migration/027699-21kthreadcore09:47:170
149950,0migration/024917-21taskset12:13:010
149950,0migration/022686-21kthreadcore10:02:170
149950,0migration/021506-21sh11:35:380
149950,0migration/02002-21runrttasks12:20:170
149950,0migration/017984-21fschecks_count09:02:130
149950,0migration/017550-21df_abs08:17:120
149950,0migration/01746-21munin-node08:02:240
149950,0migration/017172-21kthreadcore10:37:150
149950,0migration/016614-21sh09:41:520
149950,0migration/015867-21pmu-power07:27:220
149950,0migration/014858-21gltestperf12:47:150
149950,0migration/014069-21kthreadcore12:27:190
149950,0migration/011922-21kthreadcore12:07:180
149950,0migration/011108-21fschecks_time08:57:130
149950,0migration/010602-21latency_hist09:57:000
339940,0migration/37986-21taskset07:47:163
339940,0migration/330830-21kthreadcore08:02:173
329940,0watchdog/321977-21if_err_eth1.208:42:153
329940,0watchdog/30-21swapper/311:22:123
329940,0watchdog/30-21swapper/309:43:593
329940,0watchdog/30-21swapper/307:42:273
29815040,0irq/29-eth0-tx-31221-21ssh11:57:362
29815040,0irq/29-eth0-tx-24288-21cpuspeed_turbos10:42:132
29815040,0irq/29-eth0-tx-15342-21ssh10:52:252
29815040,0irq/29-eth0-tx-0-21swapper/212:47:162
29815040,0irq/29-eth0-tx-0-21swapper/211:42:532
29815040,0irq/29-eth0-tx-0-21swapper/211:37:562
29815040,0irq/29-eth0-tx-0-21swapper/211:32:102
29815040,0irq/29-eth0-tx-0-21swapper/211:17:082
29815040,0irq/29-eth0-tx-0-21swapper/211:02:062
29815040,0irq/29-eth0-tx-0-21swapper/210:59:312
29815040,0irq/29-eth0-tx-0-21swapper/210:37:292
29815040,0irq/29-eth0-tx-0-21swapper/209:57:102
29815040,0irq/29-eth0-tx-0-21swapper/209:52:002
29815040,0irq/29-eth0-tx-0-21swapper/009:07:210
29815040,0irq/29-eth0-tx-0-21swapper/008:33:290
29815040,0irq/29-eth0-tx-0-21swapper/008:27:200
29805040,0irq/28-eth0-rx-0-21swapper/312:47:583
29805040,0irq/28-eth0-rx-0-21swapper/312:17:233
29805040,0irq/28-eth0-rx-0-21swapper/311:57:063
29805040,0irq/28-eth0-rx-0-21swapper/308:56:413
29805040,0irq/28-eth0-rx-0-21swapper/308:27:183
259940,0migration/2940-21kthreadcore07:42:172
259940,0migration/27487-21kthreadcore08:07:182
259940,0migration/232640-21taskset10:47:082
259940,0migration/226808-21aten_r1power_vo12:17:122
259940,0migration/225296-21if_eth007:37:152
259940,0migration/222582-21kthreadcore09:42:192
259940,0migration/217015-21runrttasks07:32:032
249940,0watchdog/27763-21cat09:17:152
249940,0watchdog/230744-21timerandwakeup08:22:232
249940,0watchdog/225917-21sh09:47:112
249940,0watchdog/216930-21kthreadcore11:12:202
249940,0watchdog/215929-21processes07:27:232
23389943,0cyclictest8280-21awk11:47:172
23389943,0cyclictest4121-21awk12:22:162
23389943,0cyclictest3571-21lldpd12:42:022
23389943,0cyclictest3571-21lldpd09:14:592
23389943,0cyclictest3571-21lldpd08:04:582
23389943,0cyclictest3571-21lldpd08:00:282
23389943,0cyclictest3524-21snmpd08:28:292
23389943,0cyclictest3524-21snmpd07:52:292
23389943,0cyclictest32705-21awk09:32:152
23389943,0cyclictest29301-21irqcore08:47:172
23389943,0cyclictest18599-21awk09:02:162
23389943,0cyclictest14756-21awk08:37:152
23389943,0cyclictest12737-21awk12:27:172
23389943,0cyclictest11274-21awk08:57:142
23389943,0cyclictest11046-21awk08:12:152
23379944,0cyclictest0-21swapper/109:38:121
23379943,0cyclictest3648-21awk07:22:161
23379943,0cyclictest27069-21awk09:47:161
23379943,0cyclictest23909-21awk09:27:161
23379943,0cyclictest16515-21awk10:37:141
23379943,0cyclictest14771-21awk08:37:151
23379943,0cyclictest11353-21awk08:57:151
23369943,0cyclictest4171-21awk12:22:160
23369943,0cyclictest3668-21awk11:07:150
23369943,0cyclictest3571-21lldpd08:42:290
23369943,0cyclictest3524-21snmpd10:44:460
23369943,0cyclictest29201-21awk08:47:160
23369941,0cyclictest0-21swapper/008:37:110
23369940,0cyclictest0-21swapper/007:27:000
179940,0migration/18849-21kthreadcore12:22:191
179940,0migration/17524-21runrttasks12:02:301
179940,0migration/129810-21kthreadcore08:47:181
179940,0migration/124775-21kthreadcore08:42:181
179940,0migration/121731-21kthreadcore08:17:181
179940,0migration/119118-21kthreadcore07:52:181
179940,0migration/116763-21kthreadcore12:47:181
179940,0migration/114126-21kthreadcore09:57:181
169940,0watchdog/128671-21taskset10:23:121
169940,0watchdog/125319-21ssh09:46:231
169940,0watchdog/123496-21iostat11:37:161
169940,0watchdog/116931-21kthreadcore11:12:201
169940,0watchdog/10-21swapper/108:22:231
149940,0migration/08780-21kthreadcore09:17:180
149940,0migration/0515-21irqcore09:32:160
149940,0migration/03701-21sh11:24:290
149940,0migration/031153-21kthreadcore12:37:180
149940,0migration/030624-21runrttasks09:30:150
149940,0migration/025708-21kthreadcore11:37:170
149940,0migration/023649-21runrttasks11:55:280
149940,0migration/014501-21kthreadcore10:52:210
149940,0migration/011903-21kthreadcore07:47:180
329930,0watchdog/30-21swapper/309:12:233
329930,0watchdog/30-21swapper/309:02:153
329930,0watchdog/30-21swapper/308:32:193
329930,0watchdog/30-21swapper/308:22:113
23389932,0cyclictest3524-21snmpd08:42:152
23389932,0cyclictest25700-21awk09:07:152
23379932,0cyclictest3853-21awk08:07:151
23379932,0cyclictest21827-21awk07:57:151
23379932,0cyclictest11110-21awk08:12:151
23379932,0cyclictest10491-21awk12:07:151
23379930,0cyclictest31821-21munin-node07:42:131
23379930,0cyclictest30570-21kthreadcore11:02:181
23379930,0cyclictest2841-21sendmail_mailqu12:37:221
23379930,0cyclictest28385-21grep08:02:131
23379930,0cyclictest16267-21kthreadcore12:27:191
23379930,0cyclictest10004-21cut11:27:191
23379930,0cyclictest0-21swapper/108:27:181
23379930,0cyclictest0-21swapper/107:47:171
23369933,0cyclictest4060-21sadc10:12:000
23369932,0cyclictest8312-21awk11:47:170
23369932,0cyclictest7932-21kthreadcore10:12:170
23369932,0cyclictest3524-21snmpd08:52:150
23369932,0cyclictest26410-21basename11:02:110
23369932,0cyclictest25491-21awk08:22:140
23369932,0cyclictest19438-21kthreadcore07:32:170
23369930,0cyclictest32697-21perl09:12:140
23369930,0cyclictest31400-21munin-node07:42:120
179930,0migration/16754-21cpu08:32:121
179930,0migration/123793-21runrttasks07:35:081
179930,0migration/115814-21sh11:52:041
169930,0watchdog/10-21swapper/111:42:041
169930,0watchdog/10-21swapper/110:17:431
169930,0watchdog/10-21swapper/109:06:071
169930,0watchdog/10-21swapper/108:52:231
149930,0migration/016973-21runrttasks09:42:090
23379920,0cyclictest24585-21cat09:07:001
23379920,0cyclictest0-21swapper/111:32:011
23369921,0cyclictest19852-21date11:17:010
23369920,0cyclictest5215-21ssh12:42:070
169920,0watchdog/10-21swapper/111:57:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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