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2026-08-14 - 20:39
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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 Fri Aug 14, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1452824130,0sleep00-21swapper/007:27:480
1465323827,0sleep30-21swapper/307:29:193
1447923627,0sleep20-21swapper/207:27:182
1458222826,0sleep10-21swapper/107:28:251
14800991212,0cyclictest3524-21snmpd07:52:050
148029976,0cyclictest0-21swapper/212:40:322
339960,0migration/39167-21sh09:35:413
339960,0migration/320863-21sh10:03:073
339960,0migration/320407-21munin-node08:40:293
339960,0migration/314890-21sh10:20:113
339960,0migration/314809-21sh11:53:083
29805060,0irq/28-eth0-rx-5751-21diskstats11:30:253
29805060,0irq/28-eth0-rx-534-21cut12:40:323
29805060,0irq/28-eth0-rx-26322-21cut10:25:293
29805060,0irq/28-eth0-rx-18637-21ssh12:33:393
148019960,0cyclictest0-21swapper/109:40:301
149960,0migration/07223-21kthreadcore11:30:290
149960,0migration/04433-21sh10:10:350
149960,0migration/03596-21timerandwakeup08:25:370
149960,0migration/024655-21gltestperf10:25:260
149960,0migration/014892-21sh10:20:110
149960,0migration/01309-21fschecks_time12:05:260
4150,0ktimersoftd/00-21swapper/010:40:330
339950,0migration/39111-21munin-node10:35:253
339950,0migration/3748-21latency_hist08:50:123
339950,0migration/36756-21ntp_kernel_err08:05:313
339950,0migration/35693-21taskset11:46:393
339950,0migration/34111-21aten_r1power_cu12:45:243
339950,0migration/329063-21munin-node11:40:373
339950,0migration/327344-21ksmtuned12:20:273
339950,0migration/326714-21kthreadcore07:35:303
339950,0migration/323830-21taskset10:40:533
339950,0migration/323473-21kthreadcore11:20:313
339950,0migration/322905-21taskset10:23:423
339950,0migration/321585-21unixbench_singl07:30:373
339950,0migration/319533-21fschecks_time11:00:263
339950,0migration/31634-21taskset10:50:133
339950,0migration/31608-21munin-node12:05:283
339950,0migration/312790-21sh09:59:273
329950,0watchdog/33712-21ssh11:26:193
329950,0watchdog/319649-21gltestperf07:55:263
329950,0watchdog/318124-21sh10:58:593
329950,0watchdog/317739-21python07:50:383
329950,0watchdog/316624-21tr09:20:313
329950,0watchdog/312623-21sh12:50:153
329950,0watchdog/30-21swapper/311:15:313
329950,0watchdog/30-21swapper/309:30:353
29815050,0irq/29-eth0-tx-7986-21munin-node08:10:300
29815050,0irq/29-eth0-tx-624-21munin-node08:05:270
29815050,0irq/29-eth0-tx-30003-21perl11:25:252
29815050,0irq/29-eth0-tx-17670-21munin-node12:15:312
29815050,0irq/29-eth0-tx-17033-21munin-node10:40:252
29815050,0irq/29-eth0-tx-16283-21tr12:50:302
29815050,0irq/29-eth0-tx-15013-21munin-node07:30:380
29815050,0irq/29-eth0-tx-11136-21munin-node09:40:262
29815050,0irq/29-eth0-tx-0-21swapper/212:33:452
29815050,0irq/29-eth0-tx-0-21swapper/211:35:382
29815050,0irq/29-eth0-tx-0-21swapper/211:30:282
29815050,0irq/29-eth0-tx-0-21swapper/211:20:102
29815050,0irq/29-eth0-tx-0-21swapper/008:45:230
29815050,0irq/29-eth0-tx-0-21swapper/008:35:290
29815050,0irq/29-eth0-tx-0-21swapper/007:40:240
29805050,0irq/28-eth0-rx-28591-21taskset10:05:443
29805050,0irq/28-eth0-rx-2812-21kthreadcore10:30:303
29805050,0irq/28-eth0-rx-28039-21grep11:05:253
29805050,0irq/28-eth0-rx-21051-21cut11:55:313
29805050,0irq/28-eth0-rx-18790-21cut08:15:303
29805050,0irq/28-eth0-rx-18137-21ssh09:41:233
29805050,0irq/28-eth0-rx-0-21swapper/312:35:323
29805050,0irq/28-eth0-rx-0-21swapper/312:10:333
29805050,0irq/28-eth0-rx-0-21swapper/312:02:053
29805050,0irq/28-eth0-rx-0-21swapper/311:37:093
29805050,0irq/28-eth0-rx-0-21swapper/310:45:303
29805050,0irq/28-eth0-rx-0-21swapper/309:48:553
27150,0ktimersoftd/20-21swapper/212:27:262
259950,0migration/27758-21munin-node10:15:282
259950,0migration/23749-21kthreadcore08:50:302
259950,0migration/227900-21taskset09:49:132
259950,0migration/22509-21kthreadcore08:25:312
259950,0migration/223763-21kthreadcore10:05:302
259950,0migration/221806-21missed_timers11:55:322
259950,0migration/221657-21timerwakeupswit10:20:362
259950,0migration/217246-21kthreadcore07:30:282
259950,0migration/216574-21munin-node10:55:332
179950,0migration/17997-21sh12:07:401
179950,0migration/1375-21kthreadcore09:50:311
179950,0migration/130229-21fschecks_count09:10:251
179950,0migration/12921-21fschecks_count09:35:241
179950,0migration/126548-21munin-node09:45:401
179950,0migration/12102-21kthreadcore11:45:291
179950,0migration/111344-21latency_hist07:50:111
179950,0migration/111110-21taskset11:13:141
169950,0watchdog/119651-21gltestperf07:55:261
148029950,0cyclictest26084-21diskmemload11:51:012
148029950,0cyclictest11646-21perf09:20:122
148029950,0cyclictest0-21swapper/212:58:202
148029950,0cyclictest0-21swapper/211:45:492
148029950,0cyclictest0-21swapper/209:59:052
148029950,0cyclictest0-21swapper/207:35:282
148019955,0cyclictest0-21swapper/108:55:241
148019950,0cyclictest26084-21diskmemload11:04:221
148009950,0cyclictest0-21swapper/011:45:570
148009950,0cyclictest0-21swapper/009:47:240
149950,0migration/04913-21kthreadcore09:35:280
149950,0migration/028871-21kthreadcore09:30:290
149950,0migration/028582-21aten_r1power_en09:50:230
149950,0migration/027269-21munin-node12:20:270
149950,0migration/026531-21sh11:03:420
149950,0migration/026241-21df_abs08:00:230
149950,0migration/02605-21fschecks_time10:50:250
149950,0migration/023520-21kthreadcore07:55:300
149950,0migration/022495-21fschecks_count10:05:260
149950,0migration/021948-21fschecks_time12:55:260
149950,0migration/021726-21kthreadcore12:35:320
149950,0migration/021677-21latency_hist10:05:120
149950,0migration/020886-21cpuspeed_turbos11:20:260
149950,0migration/019113-21kthreadcore10:20:290
149950,0migration/018153-21taskset10:59:040
149950,0migration/017696-21kthreadcore09:00:290
149950,0migration/017651-21kthreadcore11:55:300
149950,0migration/015256-21kthreadcore12:50:300
149950,0migration/01490-21fschecks_count08:50:250
149950,0migration/014765-21fschecks_time11:35:250
149950,0migration/013952-21kthreadcore11:15:310
8305040,0irq/26-0000:00:0-21swapper/308:30:293
8305040,0irq/26-0000:00:0-21swapper/307:40:323
339940,0migration/35310-21kthreadcore11:10:293
339940,0migration/325382-21switchtime09:25:363
329940,0watchdog/34157-21tr12:25:313
329940,0watchdog/31141-21kthreadcore08:25:303
329940,0watchdog/30-21swapper/309:10:233
329940,0watchdog/30-21swapper/308:35:303
29815040,0irq/29-eth0-tx-3515-21munin-node11:10:342
29815040,0irq/29-eth0-tx-2478-21telnet09:35:222
29815040,0irq/29-eth0-tx-1684-21ssh10:50:212
29815040,0irq/29-eth0-tx-0-21swapper/212:35:222
29815040,0irq/29-eth0-tx-0-21swapper/212:20:272
29815040,0irq/29-eth0-tx-0-21swapper/212:00:392
29815040,0irq/29-eth0-tx-0-21swapper/211:05:532
29815040,0irq/29-eth0-tx-0-21swapper/211:00:502
29815040,0irq/29-eth0-tx-0-21swapper/210:46:162
29815040,0irq/29-eth0-tx-0-21swapper/210:30:392
29815040,0irq/29-eth0-tx-0-21swapper/210:00:482
29815040,0irq/29-eth0-tx-0-21swapper/009:20:290
29815040,0irq/29-eth0-tx-0-21swapper/008:30:230
29805040,0irq/28-eth0-rx-0-21swapper/312:55:263
29805040,0irq/28-eth0-rx-0-21swapper/312:16:153
29805040,0irq/28-eth0-rx-0-21swapper/310:10:553
29805040,0irq/28-eth0-rx-0-21swapper/309:50:363
29805040,0irq/28-eth0-rx-0-21swapper/308:45:223
29805040,0irq/28-eth0-rx-0-21swapper/308:15:063
259940,0migration/28770-21kthreadcore12:45:312
259940,0migration/27908-21kthreadcore08:30:292
259940,0migration/27686-21kthreadcore07:45:322
259940,0migration/231673-21kthreadcore09:10:292
259940,0migration/229855-21pmu-power10:25:332
259940,0migration/229584-21idleruntime09:50:282
259940,0migration/225817-21kthreadcore09:05:292
259940,0migration/223031-21fschecks_count11:40:242
259940,0migration/219992-21kthreadcore09:00:302
259940,0migration/214331-21kthreadcore07:50:322
259940,0migration/211137-21kthreadcore12:10:292
249940,0watchdog/225328-21python09:25:352
249940,0watchdog/221487-21tune2fs11:20:272
249940,0watchdog/219834-21hddtemp_smartct08:40:262
249940,0watchdog/219652-21gltestperf07:55:262
179940,0migration/15811-21irqcore08:30:281
179940,0migration/14781-21aten_r1power_po09:15:271
179940,0migration/14342-21cpuspeed_turbos12:45:251
179940,0migration/131894-21kthreadcore11:25:291
179940,0migration/130595-21kthreadcore08:45:291
179940,0migration/130256-21kthreadcore12:40:311
179940,0migration/129494-21kthreadcore10:25:301
179940,0migration/127534-21sh11:21:161
179940,0migration/126417-21kthreadcore07:35:301
179940,0migration/123176-21kthreadcore12:15:301
179940,0migration/12123-21irqcore08:50:291
179940,0migration/120864-21latency07:30:291
179940,0migration/119461-21aten_r1power_cu12:35:241
179940,0migration/119076-21kthreadcore10:40:301
179940,0migration/116151-21gltestperf08:15:261
179940,0migration/115203-21kthreadcore07:50:321
179940,0migration/11472-21kthreadcore07:40:301
179940,0migration/114150-21kthreadcore09:20:301
179940,0migration/113637-21kthreadcore12:10:301
169940,0watchdog/18657-21ssh10:51:031
169940,0watchdog/14355-21kthreadcore10:30:311
169940,0watchdog/14156-21cut12:25:311
169940,0watchdog/132647-21smartctlcvt09:30:351
169940,0watchdog/112455-21perl08:35:261
169940,0watchdog/10-21swapper/112:30:351
169940,0watchdog/10-21swapper/111:50:231
169940,0watchdog/10-21swapper/110:06:511
148029943,0cyclictest9644-21awk10:35:282
148029943,0cyclictest9298-21awk08:55:292
148029943,0cyclictest3524-21snmpd08:35:552
148029943,0cyclictest31506-21awk10:10:272
148029943,0cyclictest27525-21awk09:30:282
148029943,0cyclictest27124-21awk08:45:262
148029943,0cyclictest27043-21awk08:00:262
148029943,0cyclictest16278-21awk08:15:282
148029943,0cyclictest1577-21awk12:05:272
148029943,0cyclictest13023-21awk09:20:282
148019943,0cyclictest9593-21awk10:35:271
148019943,0cyclictest9170-21awk08:10:261
148019943,0cyclictest5899-21awk09:55:281
148019943,0cyclictest3571-21lldpd11:39:341
148019943,0cyclictest3571-21lldpd10:23:041
148019943,0cyclictest3571-21lldpd10:16:041
148019943,0cyclictest3571-21lldpd10:13:041
148019943,0cyclictest3571-21lldpd09:02:321
148019943,0cyclictest3524-21snmpd12:55:121
148019943,0cyclictest3524-21snmpd11:55:261
148019943,0cyclictest3524-21snmpd11:05:261
148019943,0cyclictest30649-21awk08:25:271
148019943,0cyclictest27292-21awk12:20:271
148019943,0cyclictest23543-21awk11:40:261
148019943,0cyclictest23526-21awk08:20:271
148019943,0cyclictest22414-21awk12:55:291
148019943,0cyclictest1728-21awk08:05:271
148019943,0cyclictest14424-21awk10:00:271
148019943,0cyclictest11396-21awk10:55:271
148009944,0cyclictest0-21swapper/012:49:100
148009944,0cyclictest0-21swapper/009:42:490
148009943,0cyclictest5711-21awk09:15:310
148009943,0cyclictest3571-21lldpd08:40:320
148009943,0cyclictest3524-21snmpd10:48:260
148009943,0cyclictest29146-21awk12:40:290
148009940,0cyclictest19108-21munin-node09:25:240
148009940,0cyclictest0-21swapper/012:26:280
148009940,0cyclictest0-21swapper/011:06:420
149940,0migration/05747-21kthreadcore10:30:310
149940,0migration/0361-21kthreadcore09:10:290
149940,0migration/026337-21kthreadcore12:00:300
149940,0migration/016464-21sh12:12:280
149940,0migration/014003-21runrttasks08:55:320
149940,0migration/012074-21sh09:57:220
329930,0watchdog/30-21swapper/309:15:353
329930,0watchdog/30-21swapper/309:01:513
329930,0watchdog/30-21swapper/308:55:223
329930,0watchdog/30-21swapper/308:20:303
329930,0watchdog/30-21swapper/308:00:223
29805030,0irq/28-eth0-rx-0-21swapper/309:08:063
29805030,0irq/28-eth0-rx-0-21swapper/307:45:123
169930,0watchdog/114899-21grep11:15:311
169930,0watchdog/10-21swapper/112:00:271
148029933,0cyclictest305350irq/27-eth108:20:232
148029933,0cyclictest305350irq/27-eth107:41:502
148029932,0cyclictest9096-21awk08:10:262
148029931,0cyclictest0-21swapper/208:05:252
148019932,0cyclictest26948-21awk08:00:251
148019932,0cyclictest26725-21awk10:45:271
148019932,0cyclictest23771-21awk09:05:281
148019931,0cyclictest7903-21kthreadcore11:30:301
148019930,0cyclictest19545-21perl08:40:251
148009933,0cyclictest30264-21awk11:25:270
148009932,0cyclictest5378-21awk07:45:300
148009932,0cyclictest3524-21snmpd10:35:260
148009932,0cyclictest18754-21awk12:15:270
148009932,0cyclictest15850-21kthreadcore12:30:310
148009931,0cyclictest23351-21cut08:20:250
148009930,0cyclictest8147-21grep11:10:300
148009930,0cyclictest8070-21ssh11:50:260
148009930,0cyclictest22590-21munin-node09:05:270
148009930,0cyclictest0-21swapper/008:15:300
148009930,0cyclictest0-21swapper/007:35:250
169920,0watchdog/10-21swapper/109:25:191
148009921,0cyclictest22474-21sh11:40:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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