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2026-09-04 - 21:56
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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 all highest latencies:
System rack1slot2.osadl.org (updated Fri Sep 04, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2653524634,0sleep20-21swapper/207:27:062
90924435,0sleep10-21swapper/107:30:181
64924030,0sleep30-21swapper/307:27:483
91423423,0sleep00-21swapper/007:30:210
11259976,0cyclictest28981-21perl12:12:120
339960,0migration/39247-21aten_r1power_po09:07:063
339960,0migration/38555-21sh11:40:213
339960,0migration/36088-21sh11:18:473
339960,0migration/35595-21sh11:01:593
339960,0migration/320031-21idleruntime10:32:143
339960,0migration/319346-21sh10:48:273
339960,0migration/316630-21sh10:11:153
339960,0migration/316324-21latency10:27:123
339960,0migration/315396-21sh12:58:173
329960,0watchdog/30-21swapper/311:24:543
29815060,0irq/29-eth0-tx-1538-21munin-node08:17:120
149960,0migration/029323-21sh12:30:170
149960,0migration/025597-21sh10:16:580
149960,0migration/014823-21sh11:24:090
11269960,0cyclictest0-21swapper/112:08:481
11269960,0cyclictest0-21swapper/110:08:021
11259960,0cyclictest0-21swapper/009:36:550
339950,0migration/36947-21kthreadcore11:57:153
339950,0migration/36256-21munin-node08:42:083
339950,0migration/35715-21taskset12:35:473
339950,0migration/34798-21kthreadcore08:17:093
339950,0migration/3435-21kthreadcore07:52:113
339950,0migration/33211-21taskset12:14:033
339950,0migration/331009-21gltestperf09:42:083
339950,0migration/330647-21runrttasks09:57:453
339950,0migration/327931-21gltestperf08:57:103
339950,0migration/326540-21taskset08:54:433
339950,0migration/325676-21missed_timers12:07:133
339950,0migration/323812-21fschecks_time07:47:083
339950,0migration/322192-21fschecks_count12:27:083
339950,0migration/321711-21missed_timers07:42:133
339950,0migration/321604-21kthreadcore08:27:133
339950,0migration/32108-21df_abs09:02:073
339950,0migration/319689-21taskset09:33:053
339950,0migration/317910-21kthreadcore09:12:133
339950,0migration/317879-21kthreadcore08:47:133
339950,0migration/315149-21munin-node11:07:093
339950,0migration/314802-21munin-node08:22:143
339950,0migration/31189-21kernelversion12:52:113
339950,0migration/311344-21aten_r1power_po12:02:083
339950,0migration/310645-21irqcore11:42:133
339950,0migration/31032-21munin-node10:02:103
329950,0watchdog/35665-21cut09:27:063
29815050,0irq/29-eth0-tx-8619-21seq10:22:312
29815050,0irq/29-eth0-tx-8608-21munin-node10:07:092
29815050,0irq/29-eth0-tx-29600-21ssh09:41:332
29815050,0irq/29-eth0-tx-26976-21munin-node08:57:140
29815050,0irq/29-eth0-tx-23833-21ssh10:12:242
29815050,0irq/29-eth0-tx-15191-21munin-node09:52:122
29815050,0irq/29-eth0-tx-0-21swapper/211:37:232
29815050,0irq/29-eth0-tx-0-21swapper/009:27:090
29815050,0irq/29-eth0-tx-0-21swapper/009:25:330
29815050,0irq/29-eth0-tx-0-21swapper/008:49:070
29815050,0irq/29-eth0-tx-0-21swapper/008:05:320
29805050,0irq/28-eth0-rx-7616-21ssh12:37:113
29805050,0irq/28-eth0-rx-30728-21cut10:37:143
29805050,0irq/28-eth0-rx-29198-21kthreadcore08:12:113
29805050,0irq/28-eth0-rx-22677-21kthreadcore10:52:113
29805050,0irq/28-eth0-rx-19472-21swap12:22:213
29805050,0irq/28-eth0-rx-16406-21iostat09:52:103
29805050,0irq/28-eth0-rx-13632-21ssh09:48:343
29805050,0irq/28-eth0-rx-10970-21switchtime12:17:223
29805050,0irq/28-eth0-rx-0-21swapper/312:42:143
29805050,0irq/28-eth0-rx-0-21swapper/311:47:133
29805050,0irq/28-eth0-rx-0-21swapper/311:31:553
29805050,0irq/28-eth0-rx-0-21swapper/311:15:533
29805050,0irq/28-eth0-rx-0-21swapper/310:59:363
29805050,0irq/28-eth0-rx-0-21swapper/310:43:493
29805050,0irq/28-eth0-rx-0-21swapper/310:24:093
29805050,0irq/28-eth0-rx-0-21swapper/310:18:533
29805050,0irq/28-eth0-rx-0-21swapper/309:37:183
29805050,0irq/28-eth0-rx-0-21swapper/308:02:113
29805050,0irq/28-eth0-rx-0-21swapper/307:37:053
27150,0ktimersoftd/20-21swapper/212:38:592
249950,0watchdog/2328-21ssh11:36:542
179950,0migration/1997-21munin-node11:37:051
179950,0migration/1779-21kthreadcore11:17:131
179950,0migration/128737-21kthreadcore12:47:151
179950,0migration/128484-21kthreadcore10:17:121
179950,0migration/126800-21sh11:52:121
179950,0migration/11796-21munin-node10:22:061
179950,0migration/116972-21gltestperf11:27:081
179950,0migration/111955-21timerandwakeup09:27:191
149950,0migration/09377-21taskset10:24:410
149950,0migration/06211-21kthreadcore07:32:130
149950,0migration/05941-21kthreadcore11:37:110
149950,0migration/05472-21aten_r1power_po08:42:060
149950,0migration/032711-21kthreadcore10:37:150
149950,0migration/032687-21kthreadcore07:52:110
149950,0migration/032322-21latency_hist10:01:550
149950,0migration/031088-21kthreadcore10:57:130
149950,0migration/03107-21kthreadcore09:42:130
149950,0migration/029455-21kthreadcore11:32:190
149950,0migration/028520-21kthreadcore09:57:130
149950,0migration/025707-21processes08:07:150
149950,0migration/02561-21kthreadcore12:52:110
149950,0migration/025361-21kthreadcore08:32:120
149950,0migration/023481-21taskset12:47:010
149950,0migration/019905-21kthreadcore07:42:120
149950,0migration/019214-21kthreadcore08:27:120
149950,0migration/01892-21aten2.4-expect09:02:060
149950,0migration/01862-21kthreadcore12:32:120
149950,0migration/018603-21kthreadcore12:22:150
149950,0migration/015589-21fschecks_count12:42:100
149950,0migration/015012-21needreboot09:07:140
149950,0migration/014782-21processes07:37:150
149950,0migration/012790-21sh11:03:470
149950,0migration/012653-21kthreadcore08:22:120
149950,0migration/011753-21kthreadcore09:47:120
11299955,0cyclictest0-21swapper/212:55:422
11299955,0cyclictest0-21swapper/211:57:032
11299955,0cyclictest0-21swapper/211:45:422
11299955,0cyclictest0-21swapper/211:05:392
11299955,0cyclictest0-21swapper/210:41:512
11299955,0cyclictest0-21swapper/210:03:142
11299955,0cyclictest0-21swapper/208:22:192
11299954,0cyclictest9712-21awk07:37:092
11299954,0cyclictest17450-21ps08:27:112
11299954,0cyclictest16111-21kthreadcore10:47:132
11299950,0cyclictest0-21swapper/212:33:572
11299950,0cyclictest0-21swapper/211:55:482
11299950,0cyclictest0-21swapper/211:46:582
11299950,0cyclictest0-21swapper/211:14:202
11299950,0cyclictest0-21swapper/209:13:532
11269955,0cyclictest12602-21diskmemload12:00:181
11269955,0cyclictest0-21swapper/113:01:091
11269955,0cyclictest0-21swapper/112:37:111
11269955,0cyclictest0-21swapper/112:28:121
11269955,0cyclictest0-21swapper/111:11:441
11269955,0cyclictest0-21swapper/110:49:401
11269955,0cyclictest0-21swapper/109:53:511
11269954,0cyclictest32385-21kthreadcore12:12:161
11269950,0cyclictest0-21swapper/112:53:441
11269950,0cyclictest0-21swapper/112:05:201
11269950,0cyclictest0-21swapper/110:57:521
8305040,0irq/26-0000:00:0-21swapper/309:23:263
339940,0migration/35876-21fschecks_time07:57:063
339940,0migration/34780-21kthreadcore07:32:133
339940,0migration/328685-21kthreadcore11:52:173
329940,0watchdog/328773-21kthreadcore12:47:153
29815040,0irq/29-eth0-tx-28363-21ssh12:12:102
29815040,0irq/29-eth0-tx-23794-21munin-node09:57:082
29815040,0irq/29-eth0-tx-19663-21ssh09:32:560
29815040,0irq/29-eth0-tx-14136-21munin-node11:07:102
29815040,0irq/29-eth0-tx-0-21swapper/212:07:072
29815040,0irq/29-eth0-tx-0-21swapper/211:22:032
29815040,0irq/29-eth0-tx-0-21swapper/210:53:092
29815040,0irq/29-eth0-tx-0-21swapper/210:32:162
29815040,0irq/29-eth0-tx-0-21swapper/210:27:182
29815040,0irq/29-eth0-tx-0-21swapper/210:17:012
29815040,0irq/29-eth0-tx-0-21swapper/209:47:102
29815040,0irq/29-eth0-tx-0-21swapper/009:15:380
29815040,0irq/29-eth0-tx-0-21swapper/007:49:310
29805040,0irq/28-eth0-rx-0-21swapper/311:27:123
29805040,0irq/28-eth0-rx-0-21swapper/310:12:153
29805040,0irq/28-eth0-rx-0-21swapper/309:19:113
259940,0migration/27918-21ntp_offset09:02:142
259940,0migration/25162-21fschecks_count12:17:102
259940,0migration/24179-21timerandwakeup09:42:202
259940,0migration/23819-21kthreadcore08:17:092
259940,0migration/23180-21kthreadcore11:17:132
259940,0migration/229867-21runrttasks07:49:492
259940,0migration/227047-21kthreadcore12:47:142
259940,0migration/223981-21fschecks_time08:32:082
259940,0migration/221928-21kthreadcore08:07:112
259940,0migration/220834-21kthreadcore11:27:122
259940,0migration/212964-21aten_r1power_po09:32:062
259940,0migration/211690-21fschecks_count12:02:102
259940,0migration/211457-21kthreadcore09:07:122
259940,0migration/210069-21munin-node10:42:172
249940,0watchdog/25455-21aten_r1power_po08:42:062
249940,0watchdog/24220-21port_sshpriv08:37:142
249940,0watchdog/224699-21iostat_ios09:17:102
249940,0watchdog/215771-21fschecks_time12:42:112
179940,0migration/18858-21aten_r1power_cu08:22:061
179940,0migration/130870-21df_abs08:37:061
179940,0migration/125927-21taskset11:51:161
179940,0migration/125446-21kthreadcore08:32:121
179940,0migration/124245-21iostat07:47:111
179940,0migration/120625-21kthreadcore10:32:161
179940,0migration/120282-21fschecks_count08:52:081
179940,0migration/119634-21sh08:07:051
179940,0migration/117030-21kthreadcore12:42:141
179940,0migration/114768-21kthreadcore09:32:111
179940,0migration/112663-21aten2.4-expect08:47:061
179940,0migration/112599-21cpu08:02:071
179940,0migration/110907-21kthreadcore09:07:121
169940,0watchdog/19743-21awk07:37:091
169940,0watchdog/15454-21aten_r1power_po08:42:061
169940,0watchdog/130568-21ssh11:15:501
169940,0watchdog/129315-21kthreadcore08:57:141
169940,0watchdog/121547-21kthreadcore09:12:141
169940,0watchdog/116797-21kthreadcore12:22:141
169940,0watchdog/114501-21ssh09:50:581
169940,0watchdog/10-21swapper/111:42:381
149940,0migration/09783-21kthreadcore12:17:150
149940,0migration/09696-21irqcore12:57:100
149940,0migration/020470-21sh10:51:450
11299943,0cyclictest6260-21awk07:57:082
11299943,0cyclictest3250-21irqbalance12:57:122
11299943,0cyclictest3250-21irqbalance12:28:022
11299943,0cyclictest3250-21irqbalance08:54:012
11299943,0cyclictest3250-21irqbalance08:47:212
11299943,0cyclictest3250-21irqbalance08:12:112
11299943,0cyclictest30534-21awk10:57:122
11299943,0cyclictest28054-21awk08:57:122
11299943,0cyclictest14255-21awk12:22:122
11299943,0cyclictest12607-21sadc09:31:542
11299940,0cyclictest0-21swapper/207:42:552
11269944,0cyclictest0-21swapper/111:06:511
11269943,0cyclictest3571-21lldpd11:36:351
11269943,0cyclictest3571-21lldpd11:23:351
11269943,0cyclictest3524-21snmpd09:41:361
11269943,0cyclictest3524-21snmpd09:02:211
11269943,0cyclictest27784-21awk08:12:091
11259944,0cyclictest0-21swapper/011:21:070
11259944,0cyclictest0-21swapper/010:07:110
11259944,0cyclictest0-21swapper/009:19:530
11259943,0cyclictest3726-21awk11:57:120
11259943,0cyclictest3571-21lldpd11:46:350
11259943,0cyclictest3571-21lldpd10:33:340
11259943,0cyclictest3571-21lldpd10:13:040
11259943,0cyclictest3524-21snmpd11:31:070
11259943,0cyclictest3524-21snmpd10:42:520
11259943,0cyclictest3524-21snmpd09:55:060
11259943,0cyclictest3524-21snmpd07:57:510
11259943,0cyclictest23776-21awk11:12:140
11259940,0cyclictest0-21swapper/010:29:530
329930,0watchdog/30-21swapper/308:32:063
329930,0watchdog/30-21swapper/308:10:023
29805030,0irq/28-eth0-rx-0-21swapper/308:37:053
169930,0watchdog/112602-21diskmemload10:12:101
169930,0watchdog/10-21swapper/112:17:141
169930,0watchdog/10-21swapper/110:27:101
169930,0watchdog/10-21swapper/110:03:461
169930,0watchdog/10-21swapper/109:58:141
169930,0watchdog/10-21swapper/109:43:461
11299932,0cyclictest3250-21irqbalance08:02:012
11299932,0cyclictest31762-21awk09:22:092
11299932,0cyclictest31395-21awk07:52:092
11299932,0cyclictest2910-21irqstats07:32:122
11269932,0cyclictest6360-21awk07:57:091
11269932,0cyclictest4960-21awk10:42:111
11269932,0cyclictest4497-21kthreadcore07:32:121
11269932,0cyclictest3524-21snmpd10:52:071
11269932,0cyclictest3524-21snmpd07:52:211
11269932,0cyclictest18087-21tr08:27:121
11269931,0cyclictest2438-21fschecks_time08:17:051
11269931,0cyclictest0-21swapper/107:42:111
11269930,0cyclictest31400-21perl09:22:071
11269930,0cyclictest28253-21perl10:37:101
11269930,0cyclictest23917-21df_inode09:17:061
11269930,0cyclictest2187-21kthreadcore12:32:121
11259932,0cyclictest4343-21sensors08:37:150
11259932,0cyclictest3571-21lldpd12:02:060
11259932,0cyclictest3571-21lldpd08:52:030
11259932,0cyclictest27553-21awk11:52:150
11259932,0cyclictest26034-21sensors12:07:160
11259932,0cyclictest1124-21cyclictest10:52:110
11259930,0cyclictest18626-21cut11:47:080
11259930,0cyclictest14822-21perl11:07:080
11259930,0cyclictest12193-21cut12:37:140
11259921,0cyclictest26878-21aten_r1power_po08:12:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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