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2026-09-20 - 03:54
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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 Sep 20, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
961626059,0sleep30-21swapper/319:32:033
944323728,0sleep10-21swapper/119:30:011
960123322,0sleep00-21swapper/019:31:520
954423324,0sleep20-21swapper/219:31:142
97779965,0cyclictest8106-21cut00:33:301
339960,0migration/317944-21sh22:25:253
339960,0migration/310801-21sh22:38:503
329960,0watchdog/35393-21munin-node20:33:303
29805060,0irq/28-eth0-rx-31248-21perl00:28:273
29805060,0irq/28-eth0-rx-18943-21python22:43:363
29805060,0irq/28-eth0-rx-10454-21perl23:38:263
19160,0ktimersoftd/10-21swapper/100:02:261
149960,0migration/031814-21sh23:29:310
149960,0migration/02778-21kthreadcore21:38:310
149960,0migration/017742-21sh23:42:560
149960,0migration/014841-21kthreadcore23:58:290
149960,0migration/013348-21sh23:00:420
97829955,0cyclictest0-21swapper/221:34:302
97829953,0cyclictest0-21swapper/223:38:252
97829950,0cyclictest0-21swapper/222:15:142
97779955,0cyclictest0-21swapper/122:49:101
97779955,0cyclictest0-21swapper/122:00:371
97779955,0cyclictest0-21swapper/121:54:371
97779955,0cyclictest0-21swapper/121:48:381
97779950,0cyclictest0-21swapper/122:55:381
97779950,0cyclictest0-21swapper/121:37:261
97779950,0cyclictest0-21swapper/100:43:281
97779950,0cyclictest0-21swapper/100:11:471
339950,0migration/39154-21kthreadcore21:43:323
339950,0migration/37694-21idleruntime00:33:283
339950,0migration/37197-21kthreadcore20:58:303
339950,0migration/3592-21munin-node21:18:273
339950,0migration/328456-21aten_r1power_vo20:53:243
339950,0migration/326474-21munin-node22:13:263
339950,0migration/325220-21kthreadcore21:33:303
339950,0migration/323839-21unixbench-2d22:08:363
339950,0migration/320971-21kthreadcore21:08:303
339950,0migration/319013-21kthreadcore19:38:293
339950,0migration/315003-21kthreadcore00:18:303
339950,0migration/314708-21cpuspeed_turbos23:03:243
339950,0migration/31286-21kthreadcore00:08:323
339950,0migration/311015-21kthreadcore22:58:303
339950,0migration/310280-21kthreadcore00:13:303
329950,0watchdog/332424-21cut21:38:303
329950,0watchdog/3295482chrt00:26:313
329950,0watchdog/323382-21ssh21:52:343
329950,0watchdog/318719-21cut23:43:273
329950,0watchdog/30-21swapper/323:24:513
329950,0watchdog/30-21swapper/319:58:303
29815050,0irq/29-eth0-tx-31502-21munin-node23:13:282
29815050,0irq/29-eth0-tx-23875-21sshd19:39:560
29815050,0irq/29-eth0-tx-22986-21munin-node23:08:282
29815050,0irq/29-eth0-tx-22645-21fschecks_time00:23:272
29815050,0irq/29-eth0-tx-21084-21diskmemload00:56:112
29815050,0irq/29-eth0-tx-20067-21kthreadcore23:23:302
29815050,0irq/29-eth0-tx-13579-21tr23:18:312
29815050,0irq/29-eth0-tx-13579-21tr23:18:312
29815050,0irq/29-eth0-tx-0-21swapper/223:48:272
29815050,0irq/29-eth0-tx-0-21swapper/223:33:292
29815050,0irq/29-eth0-tx-0-21swapper/222:53:292
29815050,0irq/29-eth0-tx-0-21swapper/222:43:132
29815050,0irq/29-eth0-tx-0-21swapper/222:38:192
29815050,0irq/29-eth0-tx-0-21swapper/021:33:170
29815050,0irq/29-eth0-tx-0-21swapper/020:48:250
29805050,0irq/28-eth0-rx-3339-21fschecks_count23:53:273
29805050,0irq/28-eth0-rx-319352sleep300:47:493
29805050,0irq/28-eth0-rx-31690-21kthreadcore22:33:333
29805050,0irq/28-eth0-rx-29780-21tr23:48:303
29805050,0irq/28-eth0-rx-27194-21kthreadcore23:28:303
29805050,0irq/28-eth0-rx-21568-21diskstats22:48:243
29805050,0irq/28-eth0-rx-17278-21aten_r1power_vo00:58:263
29805050,0irq/28-eth0-rx-11503-21cut20:18:303
29805050,0irq/28-eth0-rx-0-21swapper/323:13:123
29805050,0irq/28-eth0-rx-0-21swapper/323:08:313
29805050,0irq/28-eth0-rx-0-21swapper/322:00:233
29805050,0irq/28-eth0-rx-0-21swapper/321:58:093
29805050,0irq/28-eth0-rx-0-21swapper/320:48:233
29805050,0irq/28-eth0-rx-0-21swapper/320:23:323
29805050,0irq/28-eth0-rx-0-21swapper/300:40:293
29805050,0irq/28-eth0-rx-0-21swapper/300:04:413
259950,0migration/23941-21smart_sda21:38:362
259950,0migration/222129-21sh23:06:312
259950,0migration/22060-21aten2.4-expect22:18:232
259950,0migration/220026-21aten_r1power_cu00:03:232
259950,0migration/212112-21fschecks_time23:58:252
259950,0migration/211723-21sh00:14:202
259950,0migration/210666-21aten_r1power_en22:23:212
249950,0watchdog/229891-21kthreadcore19:43:302
249950,0watchdog/229654-21kthreadcore00:43:312
249950,0watchdog/224005-21cut22:28:312
249950,0watchdog/218983-21grep21:48:302
249950,0watchdog/212816-21cut22:03:302
179950,0migration/19408-21latency_hist23:38:121
179950,0migration/16766-21kthreadcore20:13:291
179950,0migration/15886-21timerwakeupswit20:33:361
179950,0migration/15288-21taskset00:30:031
179950,0migration/125915-21munin-node22:28:381
179950,0migration/123310-21irqrtprio00:23:311
179950,0migration/120395-21kthreadcore20:23:301
179950,0migration/11900-21timerwakeupswit22:33:401
179950,0migration/118400-21munin-node19:38:281
179950,0migration/117172-21gltestperf23:23:261
179950,0migration/114873-21ntp_offset22:03:331
179950,0migration/11392-21kthreadcore19:48:301
179950,0migration/113857-21latency_hist20:43:111
179950,0migration/113735-21kthreadcore00:53:311
179950,0migration/113364-21fschecks_time22:43:261
179950,0migration/111555-21kthreadcore23:18:311
179950,0migration/111555-21kthreadcore23:18:311
179950,0migration/110892-21fschecks_time19:33:281
179950,0migration/110851-21fschecks_count21:03:241
179950,0migration/110401-21fschecks_time23:38:261
169950,0watchdog/14762-21kthreadcore20:58:301
169950,0watchdog/130495-21tune2fs21:38:261
149950,0migration/09809-21taskset20:16:240
149950,0migration/09486-21gltestperf00:53:270
149950,0migration/08340-21taskset23:35:200
149950,0migration/08202-21sh00:52:590
149950,0migration/07940-21kthreadcore22:38:290
149950,0migration/07041-21fschecks_count19:53:250
149950,0migration/05936-21sh00:31:560
149950,0migration/04884-21kthreadcore20:58:300
149950,0migration/04428-21kthreadcore21:58:310
149950,0migration/04083-21kthreadcore21:18:300
149950,0migration/031586-21sh21:56:270
149950,0migration/031521-21aten_r1power_cu23:13:250
149950,0migration/029558-21hwlatdetect00:08:290
149950,0migration/029462-21kthreadcore22:33:320
149950,0migration/028969-21fschecks_time20:08:280
149950,0migration/028676-21sh22:51:020
149950,0migration/028430-21kthreadcore19:43:300
149950,0migration/026058-21sh22:28:590
149950,0migration/025144-21fschecks_count20:28:280
149950,0migration/022926-21taskset21:51:280
149950,0migration/022306-21df_abs00:23:260
149950,0migration/021343-21fschecks_count20:03:260
149950,0migration/01944-21kthreadcore20:33:280
149950,0migration/016894-21kthreadcore21:28:300
149950,0migration/013700-21kthreadcore21:03:290
149950,0migration/013063-21kthreadcore20:18:310
149950,0migration/012247-21kthreadcore21:23:320
97829943,0cyclictest7783-21awk20:38:272
97829943,0cyclictest4073-21awk20:13:272
97829943,0cyclictest3571-21lldpd20:22:102
97829943,0cyclictest18318-21awk00:58:312
97829943,0cyclictest1157-21awk21:58:282
97829940,0cyclictest24876-21grep20:48:272
97779943,0cyclictest8027-21awk21:23:291
97779943,0cyclictest7427-21awk21:43:291
97779943,0cyclictest5845-21awk00:13:271
97779943,0cyclictest3524-21snmpd23:53:321
97779943,0cyclictest3524-21snmpd23:28:471
97779943,0cyclictest3524-21snmpd22:41:311
97779943,0cyclictest3524-21snmpd22:22:011
97779943,0cyclictest3524-21snmpd21:19:311
97779943,0cyclictest3524-21snmpd21:10:311
97779943,0cyclictest3524-21snmpd00:51:331
97779943,0cyclictest3524-21snmpd00:04:321
97779943,0cyclictest25950-21awk21:13:261
97779942,0cyclictest8387-21cut22:58:291
97779941,0cyclictest25306-21kthreadcore20:48:271
97749943,0cyclictest9906-21awk22:03:280
97749943,0cyclictest7362-21kworker/0:222:53:290
97749943,0cyclictest6880-21kworker/0:100:38:410
97749943,0cyclictest3524-21snmpd23:20:170
97749943,0cyclictest3524-21snmpd23:20:170
97749943,0cyclictest3524-21snmpd00:13:170
97749943,0cyclictest24792-21munin-node21:13:280
97749943,0cyclictest18484-21awk20:23:280
97749943,0cyclictest15378-21kworker/0:200:59:230
97749943,0cyclictest14536-21awk00:18:290
97749943,0cyclictest11107-21awk19:33:300
339940,0migration/330048-21df_abs22:53:243
339940,0migration/313919-21kthreadcore21:03:293
339940,0migration/310160-21kthreadcore21:23:313
329940,0watchdog/310049-21munin-node19:33:263
329940,0watchdog/30-21swapper/323:33:353
329940,0watchdog/30-21swapper/322:03:303
329940,0watchdog/30-21swapper/321:28:303
329940,0watchdog/30-21swapper/320:38:263
329940,0watchdog/30-21swapper/320:30:463
329940,0watchdog/30-21swapper/320:03:303
329940,0watchdog/30-21swapper/319:53:303
29815040,0irq/29-eth0-tx-23853-21ssh21:53:202
29815040,0irq/29-eth0-tx-21084-21diskmemload00:33:312
29815040,0irq/29-eth0-tx-0-21swapper/223:43:242
29815040,0irq/29-eth0-tx-0-21swapper/223:28:222
29815040,0irq/29-eth0-tx-0-21swapper/222:58:322
29815040,0irq/29-eth0-tx-0-21swapper/222:48:202
29815040,0irq/29-eth0-tx-0-21swapper/222:34:222
29815040,0irq/29-eth0-tx-0-21swapper/221:43:272
29815040,0irq/29-eth0-tx-0-21swapper/200:49:122
29815040,0irq/29-eth0-tx-0-21swapper/200:38:142
29815040,0irq/29-eth0-tx-0-21swapper/200:18:442
29815040,0irq/29-eth0-tx-0-21swapper/200:08:232
29815040,0irq/29-eth0-tx-0-21swapper/020:38:230
29815040,0irq/29-eth0-tx-0-21swapper/019:48:340
29805040,0irq/28-eth0-rx-0-21swapper/323:58:243
29805040,0irq/28-eth0-rx-0-21swapper/323:18:313
29805040,0irq/28-eth0-rx-0-21swapper/323:18:313
29805040,0irq/28-eth0-rx-0-21swapper/322:28:223
29805040,0irq/28-eth0-rx-0-21swapper/322:18:553
29805040,0irq/28-eth0-rx-0-21swapper/321:13:223
29805040,0irq/28-eth0-rx-0-21swapper/319:43:233
29805040,0irq/28-eth0-rx-0-21swapper/300:53:243
29805040,0irq/28-eth0-rx-0-21swapper/300:48:383
259940,0migration/26242-21kthreadcore23:53:312
259940,0migration/23814-21kthreadcore00:28:312
259940,0migration/23642-21kthreadcore20:33:292
259940,0migration/227259-21kthreadcore21:13:282
259940,0migration/226649-21kthreadcore20:28:322
259940,0migration/220469-21kthreadcore20:23:302
259940,0migration/220303-21kthreadcore21:08:292
259940,0migration/218303-21hwlatdetect22:08:262
259940,0migration/217368-21kthreadcore19:58:302
259940,0migration/215328-21kthreadcore21:03:292
249940,0watchdog/28434-21irqrtprio21:23:302
249940,0watchdog/2378-21cut20:53:302
249940,0watchdog/23659-21kthreadcore21:18:302
249940,0watchdog/220854-21cut19:38:302
249940,0watchdog/216647-21ps19:34:222
249940,0watchdog/20-21swapper/221:28:302
249940,0watchdog/20-21swapper/220:58:302
249940,0watchdog/20-21swapper/219:53:302
179940,0migration/130742-21kthreadcore20:53:301
179940,0migration/128837-21fschecks_time20:08:281
179940,0migration/125552-21gltestperf20:28:281
179940,0migration/123581-21switchtime00:58:401
179940,0migration/120905-21aten_r1power_cu20:03:241
179940,0migration/119159-21kthreadcore00:38:321
179940,0migration/113626-21taskset20:42:311
179940,0migration/112888-21kthreadcore22:23:271
179940,0migration/110328-21aten_r1power_po20:18:251
169940,0watchdog/118718-21grep23:43:271
169940,0watchdog/118610-21kthreadcore21:28:301
169940,0watchdog/111701-21kthreadcore19:53:301
169940,0watchdog/10-21swapper/123:13:311
169940,0watchdog/10-21swapper/123:08:311
169940,0watchdog/10-21swapper/119:43:301
169940,0watchdog/10-21swapper/100:18:271
149940,0migration/026814-21diskmemload22:13:270
149940,0migration/025550-21kthreadcore00:03:300
149940,0migration/024938-21runrttasks23:43:560
149940,0migration/020149-21runrttasks22:46:070
149940,0migration/018585-21hwlatdetect21:08:270
149940,0migration/014145-21kthreadcore22:23:280
97829932,0cyclictest14997-21awk20:43:302
97829930,0cyclictest31989-21df_inode19:48:252
97779932,0cyclictest14767-21awk19:58:271
97779930,0cyclictest26983-21df23:48:251
97749933,0cyclictest7362-21kworker/0:222:18:130
97749933,0cyclictest7362-21kworker/0:222:08:130
97749933,0cyclictest6880-21kworker/0:123:48:190
97749933,0cyclictest6880-21kworker/0:123:23:150
97749933,0cyclictest6880-21kworker/0:123:03:170
97749933,0cyclictest6880-21kworker/0:100:43:130
97749933,0cyclictest6880-21kworker/0:100:33:130
97749933,0cyclictest3913-21kworker/0:020:43:120
97749933,0cyclictest27330-21kworker/0:120:53:160
97749933,0cyclictest19826-21kworker/0:119:58:120
97749932,0cyclictest22850-21grep23:08:120
97749932,0cyclictest10946-21tr21:43:320
97749930,0cyclictest2669-21latency_hist23:53:120
8305030,0irq/26-0000:00:0-21swapper/320:08:193
329930,0watchdog/30-21swapper/320:43:263
329930,0watchdog/30-21swapper/320:13:223
329930,0watchdog/30-21swapper/319:48:303
249930,0watchdog/20-21swapper/220:03:302
169930,0watchdog/126808-21ssh22:13:261
169930,0watchdog/10-21swapper/123:03:311
169930,0watchdog/10-21swapper/122:08:381
249920,0watchdog/20-21swapper/220:08:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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