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2026-05-31 - 11:17
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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 Sun May 31, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1276524634,0sleep20-21swapper/219:22:062
1282023827,0sleep00-21swapper/019:22:400
575923324,0sleep10-21swapper/119:19:011
599423026,0sleep30-21swapper/319:19:113
29805070,0irq/28-eth0-rx-27938-21kthreadcore22:39:193
130059970,0cyclictest0-21swapper/223:19:192
339960,0migration/39389-21cpuspeed_turbos23:44:133
339960,0migration/35789-21sh23:22:103
339960,0migration/35344-21gltestperf23:04:143
339960,0migration/320148-21kthreadcore21:19:183
339960,0migration/320148-21kthreadcore21:19:183
339960,0migration/31148-21sh23:55:333
339960,0migration/310985-21sh00:03:293
29815060,0irq/29-eth0-tx-31530-21munin-node20:44:200
29815060,0irq/29-eth0-tx-20661-21munin-node20:14:230
29805060,0irq/28-eth0-rx-30206-21yum22:19:263
29805060,0irq/28-eth0-rx-23957-21cut21:59:203
29805060,0irq/28-eth0-rx-21545-21taskset00:27:173
29805060,0irq/28-eth0-rx-16821-21sh21:35:153
149960,0migration/06754-21sh23:24:110
149960,0migration/031640-21kthreadcore22:59:200
149960,0migration/026426-21kthreadcore19:54:180
149960,0migration/025346-21kthreadcore23:14:200
149960,0migration/021783-21taskset20:59:160
130059960,0cyclictest0-21swapper/200:39:442
130039960,0cyclictest0-21swapper/000:32:150
8305050,0irq/26-0000:00:27354-21ls19:34:013
8305050,0irq/26-0000:00:2462-21munin-run23:59:012
8305050,0irq/26-0000:00:0-21swapper/221:34:022
339950,0migration/38362-21kthreadcore21:09:203
339950,0migration/37958-21kthreadcore19:39:183
339950,0migration/35587-21taskset19:59:473
339950,0migration/33517-21kthreadcore21:29:223
339950,0migration/332282-21if_eth1.200:34:173
339950,0migration/331059-21munin-node00:49:243
339950,0migration/328681-21kthreadcore21:24:203
339950,0migration/327619-21taskset21:02:203
339950,0migration/325789-21munin-node22:54:233
339950,0migration/32382-21taskset21:07:123
339950,0migration/323614-21taskset19:50:453
339950,0migration/320748-21kthreadcore22:34:203
339950,0migration/317877-21sh22:50:173
339950,0migration/317841-21fschecks_time20:34:143
339950,0migration/316628-21taskset19:48:133
339950,0migration/315468-21kthreadcore20:54:183
339950,0migration/314005-21taskset22:12:303
339950,0migration/310833-21kthreadcore22:29:183
329950,0watchdog/33524-21snmpd19:34:123
329950,0watchdog/327031-21kthreadcore23:14:203
329950,0watchdog/323455-21munin-node00:29:173
329950,0watchdog/319190-21awk19:24:203
329950,0watchdog/316219-21aten_r1power_fr00:44:133
329950,0watchdog/311985-21tr20:49:203
329950,0watchdog/30-21swapper/321:44:203
29815050,0irq/29-eth0-tx-31707-21fschecks_count00:34:142
29815050,0irq/29-eth0-tx-27147-21tr23:14:202
29815050,0irq/29-eth0-tx-1926-21uname22:59:242
29815050,0irq/29-eth0-tx-14729-21fschecks_time00:24:152
29815050,0irq/29-eth0-tx-13551-21diskstats23:09:152
29815050,0irq/29-eth0-tx-0-21swapper/223:48:572
29815050,0irq/29-eth0-tx-0-21swapper/223:41:152
29815050,0irq/29-eth0-tx-0-21swapper/223:25:162
29815050,0irq/29-eth0-tx-0-21swapper/222:46:172
29815050,0irq/29-eth0-tx-0-21swapper/221:56:282
29815050,0irq/29-eth0-tx-0-21swapper/221:49:132
29815050,0irq/29-eth0-tx-0-21swapper/200:47:212
29815050,0irq/29-eth0-tx-0-21swapper/200:14:352
29805050,0irq/28-eth0-rx-6314-21runrttasks23:34:383
29805050,0irq/28-eth0-rx-29860-21ssh00:14:163
29805050,0irq/28-eth0-rx-26105-21memory00:09:223
29805050,0irq/28-eth0-rx-25049-21python21:39:263
29805050,0irq/28-eth0-rx-19887-21cat23:49:203
29805050,0irq/28-eth0-rx-14933-21basename22:14:143
29805050,0irq/28-eth0-rx-13893-21ssh23:25:383
29805050,0irq/28-eth0-rx-12342-21kthreadcore00:39:203
29805050,0irq/28-eth0-rx-1022-21fschecks_count23:39:163
29805050,0irq/28-eth0-rx-0-21swapper/323:14:013
29805050,0irq/28-eth0-rx-0-21swapper/322:44:083
29805050,0irq/28-eth0-rx-0-21swapper/322:04:303
29805050,0irq/28-eth0-rx-0-21swapper/321:56:163
29805050,0irq/28-eth0-rx-0-21swapper/321:49:133
29805050,0irq/28-eth0-rx-0-21swapper/300:04:213
259950,0migration/25731-21kthreadcore23:59:202
259950,0migration/226362-21kthreadcore22:19:162
259950,0migration/222537-21kthreadcore20:59:192
259950,0migration/211027-21munin-node21:14:152
249950,0watchdog/223972-21ssh22:34:442
249950,0watchdog/21113-21netstat21:44:202
149950,0migration/09800-21kthreadcore00:39:190
149950,0migration/09495-21taskset20:26:100
149950,0migration/08647-21aten_r1power_vo22:29:130
149950,0migration/08207-21kthreadcore20:04:180
149950,0migration/06318-21sh00:36:390
149950,0migration/05927-21kthreadcore19:39:180
149950,0migration/05084-21kthreadcore21:09:190
149950,0migration/03832-21munin-node22:04:230
149950,0migration/03293-21kthreadcore21:29:220
149950,0migration/032466-21missed_timers23:54:200
149950,0migration/030826-21kthreadcore00:14:190
149950,0migration/030389-21kthreadcore20:19:190
149950,0migration/029984-21kthreadcore19:34:170
149950,0migration/027757-21kthreadcore00:49:200
149950,0migration/027597-21kthreadcore23:34:190
149950,0migration/026672-21fschecks_time22:39:150
149950,0migration/024813-21cpuspeed_turbos21:24:140
149950,0migration/021269-21if_eth000:09:190
149950,0migration/019992-21kthreadcore21:19:180
149950,0migration/019992-21kthreadcore21:19:180
149950,0migration/019081-21runrttasks22:53:340
149950,0migration/019026-21latency23:09:200
149950,0migration/017018-21kthreadcore22:14:200
149950,0migration/016744-21irqcore23:29:190
149950,0migration/016626-21kthreadcore20:54:180
149950,0migration/015958-21kthreadcore21:54:190
149950,0migration/015930-21kthreadcore00:24:190
149950,0migration/015025-21kthreadcore00:04:210
149950,0migration/013408-21sh22:10:480
149950,0migration/012279-21sh00:20:360
149950,0migration/012063-21kthreadcore21:34:190
149950,0migration/011792-21kthreadcore23:44:180
149950,0migration/010013-21taskset22:47:360
130059955,0cyclictest0-21swapper/222:42:352
130059955,0cyclictest0-21swapper/222:13:442
130059955,0cyclictest0-21swapper/221:42:502
130059954,0cyclictest3571-21lldpd22:57:112
130059950,0cyclictest0-21swapper/223:04:592
130059950,0cyclictest0-21swapper/222:29:592
130059950,0cyclictest0-21swapper/221:27:422
130049955,0cyclictest0-21swapper/122:39:271
130049950,0cyclictest0-21swapper/123:01:411
130049950,0cyclictest0-21swapper/122:57:541
130049950,0cyclictest0-21swapper/122:32:221
130049950,0cyclictest0-21swapper/121:29:371
130039950,0cyclictest0-21swapper/023:19:540
130039950,0cyclictest0-21swapper/021:45:080
4140,0ktimersoftd/00-21swapper/021:17:330
339940,0migration/327345-21taskset20:15:553
339940,0migration/326490-21kthreadcore19:54:183
339940,0migration/32347-21taskset20:23:203
339940,0migration/320094-21kthreadcore23:29:203
339940,0migration/315784-21latency20:29:203
329940,0watchdog/329269-21kthreadcore20:39:203
329940,0watchdog/30-21swapper/322:59:203
29815040,0irq/29-eth0-tx-25323-21ssh23:34:182
29815040,0irq/29-eth0-tx-22414-21ssh00:29:052
29815040,0irq/29-eth0-tx-0-21swapper/223:49:272
29815040,0irq/29-eth0-tx-0-21swapper/223:29:092
29815040,0irq/29-eth0-tx-0-21swapper/221:29:052
29815040,0irq/29-eth0-tx-0-21swapper/020:09:130
29805040,0irq/28-eth0-rx-0-21swapper/322:24:173
29805040,0irq/28-eth0-rx-0-21swapper/320:09:133
29805040,0irq/28-eth0-rx-0-21swapper/300:19:263
259940,0migration/27434-21kthreadcore00:19:192
259940,0migration/230042-21kthreadcore19:34:172
259940,0migration/227362-21kthreadcore19:54:182
259940,0migration/223943-21kthreadcore20:14:182
259940,0migration/22350-21latency_hist19:39:012
259940,0migration/215794-21kthreadcore19:24:172
259940,0migration/213594-21kthreadcore20:29:192
249940,0watchdog/229270-21kthreadcore20:39:202
249940,0watchdog/215299-21entropy22:14:162
249940,0watchdog/2114252sleep200:04:052
249940,0watchdog/20-21swapper/222:04:122
249940,0watchdog/20-21swapper/220:49:202
249940,0watchdog/20-21swapper/200:09:212
179940,0migration/16176-21latency_hist20:04:011
179940,0migration/132308-21sh21:27:261
179940,0migration/127427-21gltestperf23:54:151
179940,0migration/12168-21kthreadcore23:39:201
179940,0migration/12041-21taskset19:37:551
179940,0migration/119676-21unixbench_multi19:24:251
179940,0migration/116103-21munin-node21:14:221
179940,0migration/115632-21kthreadcore23:09:191
179940,0migration/115475-21kthreadcore20:54:181
179940,0migration/112024-21munin-node22:49:181
169940,0watchdog/17543-21kthreadcore23:59:211
169940,0watchdog/16340-21ssh23:23:401
169940,0watchdog/16314-21runrttasks23:36:411
169940,0watchdog/127030-21kthreadcore23:14:201
169940,0watchdog/126347-21port_sshpriv00:09:251
169940,0watchdog/126248-21kthreadcore20:59:201
169940,0watchdog/125215-21timerwakeupswit21:39:281
169940,0watchdog/115586-21ssh00:43:171
169940,0watchdog/11084-21ssh21:44:201
169940,0watchdog/10-21swapper/123:29:201
169940,0watchdog/10-21swapper/122:19:161
169940,0watchdog/10-21swapper/100:44:131
169940,0watchdog/10-21swapper/100:14:131
149940,0migration/023138-21kthreadcore19:29:170
130059943,0cyclictest9832-21sadc21:14:012
130059943,0cyclictest3571-21lldpd20:47:382
130059943,0cyclictest3571-21lldpd20:34:372
130059943,0cyclictest3571-21lldpd20:07:372
130059943,0cyclictest3571-21lldpd19:49:072
130059943,0cyclictest3571-21lldpd19:48:072
130059943,0cyclictest3250-21irqbalance22:24:282
130059943,0cyclictest32371-21awk19:59:162
130059943,0cyclictest25864-21awk00:49:182
130059943,0cyclictest22329-21awk21:59:182
130059943,0cyclictest20428-21sadc20:14:012
130059943,0cyclictest14696-21awk20:54:162
130059943,0cyclictest12001-21awk22:49:172
130049944,0cyclictest0-21swapper/122:05:341
130049944,0cyclictest0-21swapper/100:20:501
130049943,0cyclictest924-21awk22:24:171
130049943,0cyclictest7588-21awk20:49:181
130049943,0cyclictest3571-21lldpd23:28:111
130049943,0cyclictest3571-21lldpd22:44:111
130049943,0cyclictest3571-21lldpd22:38:411
130049943,0cyclictest3571-21lldpd21:37:391
130049943,0cyclictest3571-21lldpd20:33:081
130049943,0cyclictest3571-21lldpd20:26:081
130049943,0cyclictest3571-21lldpd19:46:361
130049943,0cyclictest3524-21snmpd21:59:451
130049943,0cyclictest3524-21snmpd21:09:141
130049943,0cyclictest3524-21snmpd21:08:141
130049943,0cyclictest3524-21snmpd20:34:431
130049943,0cyclictest3524-21snmpd20:16:131
130049943,0cyclictest3524-21snmpd20:10:131
130049943,0cyclictest3524-21snmpd19:54:421
130049943,0cyclictest3524-21snmpd19:42:421
130049943,0cyclictest3524-21snmpd00:49:321
130049943,0cyclictest3524-21snmpd00:33:311
130049943,0cyclictest32682-21awk20:44:151
130049943,0cyclictest32483-21awk19:59:171
130049943,0cyclictest21440-21awk19:29:141
130049943,0cyclictest18411-21awk21:19:161
130049943,0cyclictest18411-21awk21:19:161
130049943,0cyclictest18040-21awk19:49:161
130049943,0cyclictest10356-21awk23:44:171
130049940,0cyclictest0-21swapper/123:49:461
130039944,0cyclictest0-21swapper/022:20:080
130039943,0cyclictest3571-21lldpd23:40:120
130039943,0cyclictest17343-21awk00:44:180
130039943,0cyclictest14291-21awk19:24:150
4130,0ktimersoftd/00-21swapper/019:51:050
329930,0watchdog/30-21swapper/320:24:243
29805030,0irq/28-eth0-rx-0-21swapper/321:14:133
29805030,0irq/28-eth0-rx-0-21swapper/320:44:113
29805030,0irq/28-eth0-rx-0-21swapper/320:05:393
249930,0watchdog/221620-21ps19:29:162
169930,0watchdog/124288-21diskmemload00:34:171
169930,0watchdog/10-21swapper/123:04:121
169930,0watchdog/10-21swapper/122:14:161
149930,0migration/011416-21runrttasks23:05:070
130059932,0cyclictest29089-21awk21:04:162
130059932,0cyclictest28980-21awk20:19:172
130059930,0cyclictest3531-21perl20:24:132
130059930,0cyclictest0-21swapper/221:22:362
130059930,0cyclictest0-21swapper/221:22:362
130049933,0cyclictest3571-21lldpd20:19:071
130049932,0cyclictest8695-21cut21:49:191
130049932,0cyclictest3571-21lldpd22:09:091
130049932,0cyclictest14910-21awk00:24:171
130049932,0cyclictest13680-21awk21:54:171
130049932,0cyclictest12539-21awk00:04:181
130049930,0cyclictest24659-21df20:39:141
130039933,0cyclictest9082-21kworker/0:122:24:180
130039932,0cyclictest9710-21munin-node19:44:160
130039932,0cyclictest4876-21awk21:49:170
130039932,0cyclictest29556-21idleruntime-cro22:04:010
130039932,0cyclictest25437-21awk20:39:170
130039932,0cyclictest20620-21awk22:54:160
130039932,0cyclictest17415-21expr22:34:140
130039932,0cyclictest11195-21sadc00:04:010
130039932,0cyclictest11134-21awk20:29:170
130039931,0cyclictest0-21swapper/021:04:020
130039931,0cyclictest0-21swapper/020:53:150
130039930,0cyclictest24177-21python23:49:260
130039921,0cyclictest31362-21aten_r1power_en19:59:120
130039921,0cyclictest17074-21cat20:34:010
130039921,0cyclictest0-21swapper/021:39:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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