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2026-04-05 - 15:19
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Sun Apr 05, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1597723829,0sleep30-21swapper/307:17:083
925623626,0sleep00-21swapper/007:14:370
1608323626,0sleep10-21swapper/107:18:221
1598123626,0sleep20-21swapper/207:17:112
339960,0migration/37334-21sh09:59:593
339960,0migration/332168-21runrttasks11:29:443
339960,0migration/331321-21sh11:11:123
339960,0migration/327725-21taskset11:48:383
339960,0migration/321133-21munin-node08:29:403
339960,0migration/316451-21sh11:21:533
339960,0migration/316083-21kthreadcore07:39:443
339960,0migration/312556-21sh10:42:523
329960,0watchdog/314022-21munin-node09:29:423
162459960,0cyclictest0-21swapper/212:45:582
162439965,0cyclictest4508-21kworker/0:112:29:560
162439964,0cyclictest4508-21kworker/0:110:51:220
149960,0migration/022508-21pmu-power07:19:470
149960,0migration/018245-21fschecks_count11:24:400
149960,0migration/013065-21latency_hist09:09:260
339950,0migration/38731-21needreboot10:19:473
339950,0migration/37390-21kthreadcore07:34:433
339950,0migration/36880-21kthreadcore09:24:423
339950,0migration/36703-21kthreadcore11:54:443
339950,0migration/331172-21fschecks_count10:54:403
339950,0migration/330494-21aten_r1power_fr12:09:393
339950,0migration/32997-21kthreadcore12:29:453
339950,0migration/328450-21kthreadcore12:44:433
339950,0migration/32550-21aten_r1power_vo11:34:373
339950,0migration/324571-21kthreadcore10:29:443
339950,0migration/323664-21latency_hist08:09:263
339950,0migration/322551-21kthreadcore09:14:443
339950,0migration/318576-21gltestperf11:24:413
339950,0migration/313463-21munin-node08:24:383
339950,0migration/312275-21timerandwakeup09:04:523
339950,0migration/311742-21fschecks_count10:24:383
339950,0migration/311262-21kthreadcore10:59:443
329950,0watchdog/39446-21kthreadcore12:14:463
329950,0watchdog/328279-21ssh11:49:343
329950,0watchdog/324283-21diskstats12:24:383
329950,0watchdog/324283-21diskstats12:24:383
329950,0watchdog/30-21swapper/309:49:503
29815050,0irq/29-eth0-tx-9379-21munin-node07:59:430
29805050,0irq/28-eth0-rx-9976-21iostat12:34:443
29805050,0irq/28-eth0-rx-2362-21chrt08:39:373
29805050,0irq/28-eth0-rx-15126-21ssh09:48:473
29805050,0irq/28-eth0-rx-12735-21kthreadcore10:04:453
29805050,0irq/28-eth0-rx-0-21swapper/312:19:443
29805050,0irq/28-eth0-rx-0-21swapper/312:05:183
29805050,0irq/28-eth0-rx-0-21swapper/311:40:033
29805050,0irq/28-eth0-rx-0-21swapper/311:14:443
29805050,0irq/28-eth0-rx-0-21swapper/311:04:383
29805050,0irq/28-eth0-rx-0-21swapper/310:18:033
29805050,0irq/28-eth0-rx-0-21swapper/310:14:103
29805050,0irq/28-eth0-rx-0-21swapper/309:39:303
29805050,0irq/28-eth0-rx-0-21swapper/309:34:443
29805050,0irq/28-eth0-rx-0-21swapper/309:21:463
29805050,0irq/28-eth0-rx-0-21swapper/308:49:443
27150,0ktimersoftd/20-21swapper/212:18:372
259950,0migration/223633-21latency_hist07:24:272
259950,0migration/221677-21aten_r1power_en09:34:382
19150,0ktimersoftd/10-21swapper/111:55:311
19150,0ktimersoftd/10-21swapper/109:46:381
179950,0migration/1981-21kthreadcore10:34:471
179950,0migration/19330-21latency_hist08:44:261
179950,0migration/17570-21fschecks_count10:59:391
179950,0migration/16148-21cpuspeed_turbos09:04:391
179950,0migration/131174-21kthreadcore09:19:451
179950,0migration/128753-21kthreadcore12:24:431
179950,0migration/128753-21kthreadcore12:24:431
179950,0migration/125863-21taskset11:44:501
179950,0migration/122668-21sh12:21:511
179950,0migration/121389-21sh10:48:281
179950,0migration/11746-21kthreadcore12:29:441
179950,0migration/114308-21kthreadcore11:19:451
179950,0migration/113646-21sh09:29:391
162459955,0cyclictest0-21swapper/212:24:322
162459955,0cyclictest0-21swapper/212:24:322
162459955,0cyclictest0-21swapper/210:40:282
162459955,0cyclictest0-21swapper/209:42:182
162459955,0cyclictest0-21swapper/208:49:482
162459950,0cyclictest0-21swapper/211:38:012
162459950,0cyclictest0-21swapper/211:29:022
162459950,0cyclictest0-21swapper/210:55:462
162459950,0cyclictest0-21swapper/209:48:082
162449954,0cyclictest15945-21ssh12:36:071
162449950,0cyclictest0-21swapper/112:12:181
162449950,0cyclictest0-21swapper/110:53:381
162449950,0cyclictest0-21swapper/110:40:421
162439955,0cyclictest4508-21kworker/0:112:44:290
162439955,0cyclictest4508-21kworker/0:112:34:490
162439955,0cyclictest4508-21kworker/0:112:24:440
162439955,0cyclictest4508-21kworker/0:112:24:440
162439955,0cyclictest4508-21kworker/0:112:19:340
162439955,0cyclictest4508-21kworker/0:112:14:280
162439955,0cyclictest4508-21kworker/0:112:09:280
162439955,0cyclictest4508-21kworker/0:111:59:400
162439955,0cyclictest4508-21kworker/0:111:54:320
162439955,0cyclictest4508-21kworker/0:111:49:420
162439955,0cyclictest4508-21kworker/0:111:44:280
162439955,0cyclictest4508-21kworker/0:111:39:280
162439955,0cyclictest4508-21kworker/0:111:35:000
162439955,0cyclictest4508-21kworker/0:111:29:280
162439955,0cyclictest4508-21kworker/0:111:19:280
162439955,0cyclictest4508-21kworker/0:111:15:100
162439955,0cyclictest4508-21kworker/0:111:04:380
162439955,0cyclictest4508-21kworker/0:110:59:320
162439955,0cyclictest4508-21kworker/0:110:55:020
162439955,0cyclictest4508-21kworker/0:110:44:320
162439955,0cyclictest4508-21kworker/0:110:40:080
162439955,0cyclictest24108-21kworker/0:010:34:560
162439955,0cyclictest24108-21kworker/0:010:29:400
162439955,0cyclictest24108-21kworker/0:010:24:300
162439955,0cyclictest24108-21kworker/0:010:19:540
162439955,0cyclictest24108-21kworker/0:010:15:100
162439955,0cyclictest15582-21kworker/0:110:09:300
162439955,0cyclictest15582-21kworker/0:110:04:500
162439955,0cyclictest15582-21kworker/0:109:59:340
162439955,0cyclictest15582-21kworker/0:109:54:300
162439955,0cyclictest15582-21kworker/0:109:49:320
162439955,0cyclictest15582-21kworker/0:109:44:380
162439955,0cyclictest15582-21kworker/0:109:39:280
162439955,0cyclictest15582-21kworker/0:109:35:020
162439955,0cyclictest15582-21kworker/0:109:29:280
162439955,0cyclictest15582-21kworker/0:109:24:460
162439955,0cyclictest15582-21kworker/0:109:20:460
162439955,0cyclictest15582-21kworker/0:108:59:440
162439954,0cyclictest5610-21sadc08:19:260
162439954,0cyclictest25256-21awk11:09:420
149950,0migration/07628-21kthreadcore08:39:440
149950,0migration/030269-21timerwakeupswit08:54:520
149950,0migration/02880-21fschecks_time07:54:390
149950,0migration/027272-21kthreadcore07:24:440
149950,0migration/027056-21taskset08:32:480
149950,0migration/021969-21kthreadcore12:39:450
149950,0migration/021800-21taskset12:04:370
149950,0migration/012775-21taskset09:08:020
339940,0migration/325051-21irqcore07:24:433
339940,0migration/32235-21kthreadcore08:59:443
329940,0watchdog/326408-21kthreadcore10:49:463
329940,0watchdog/30-21swapper/312:40:223
329940,0watchdog/30-21swapper/311:59:463
329940,0watchdog/30-21swapper/309:54:423
329940,0watchdog/30-21swapper/309:09:383
329940,0watchdog/30-21swapper/308:19:453
29815040,0irq/29-eth0-tx-9740-21ssh10:20:512
29815040,0irq/29-eth0-tx-7510-21ssh10:00:282
29815040,0irq/29-eth0-tx-31830-21ssh12:09:442
29815040,0irq/29-eth0-tx-24268-21ssh12:40:192
29815040,0irq/29-eth0-tx-19234-21kthreadcore09:49:462
29815040,0irq/29-eth0-tx-18901-21ssh10:27:322
29815040,0irq/29-eth0-tx-0-21swapper/212:35:022
29815040,0irq/29-eth0-tx-0-21swapper/212:29:562
29815040,0irq/29-eth0-tx-0-21swapper/211:59:482
29815040,0irq/29-eth0-tx-0-21swapper/211:16:342
29815040,0irq/29-eth0-tx-0-21swapper/211:00:242
29815040,0irq/29-eth0-tx-0-21swapper/210:50:182
29815040,0irq/29-eth0-tx-0-21swapper/210:45:522
29815040,0irq/29-eth0-tx-0-21swapper/209:54:382
29815040,0irq/29-eth0-tx-0-21swapper/209:23:182
29815040,0irq/29-eth0-tx-0-21swapper/007:44:420
29815040,0irq/29-eth0-tx-0-21swapper/007:29:390
29805040,0irq/28-eth0-rx-20592-21cut07:19:443
29805040,0irq/28-eth0-rx-15849-21unixbench_multi07:59:523
29805040,0irq/28-eth0-rx-0-21swapper/310:44:423
29805040,0irq/28-eth0-rx-0-21swapper/310:34:413
29805040,0irq/28-eth0-rx-0-21swapper/308:14:453
29805040,0irq/28-eth0-rx-0-21swapper/307:49:453
29805040,0irq/28-eth0-rx-0-21swapper/307:44:383
259940,0migration/29546-21aten_r1power_en08:44:382
259940,0migration/29178-21kthreadcore11:54:452
259940,0migration/29145-21kthreadcore09:04:442
259940,0migration/27854-21kthreadcore07:34:432
259940,0migration/2413-21kthreadcore08:59:442
259940,0migration/229730-21kthreadcore10:14:452
259940,0migration/229525-21runrttasks11:49:432
259940,0migration/229117-21kthreadcore11:29:432
259940,0migration/229069-21kthreadcore11:09:442
259940,0migration/222223-21df_abs12:04:392
259940,0migration/217434-21sensors_fan11:39:482
259940,0migration/217118-21kernelversion11:04:432
259940,0migration/216950-21kthreadcore12:19:442
249940,0watchdog/20-21swapper/208:29:412
179940,0migration/15850-21kthreadcore09:59:461
179940,0migration/1336-21kthreadcore08:59:441
179940,0migration/131187-21fschecks_time09:39:401
179940,0migration/130509-21latency_hist10:54:271
179940,0migration/128158-21smart_sda12:04:501
179940,0migration/127370-21aten_r1power_en07:49:381
179940,0migration/125721-21kthreadcore07:24:441
179940,0migration/123674-21kthreadcore09:14:451
179940,0migration/120898-21kthreadcore12:39:451
179940,0migration/118957-21needreboot08:24:441
179940,0migration/115713-21diskmemload11:04:381
179940,0migration/113260-21kthreadcore10:04:451
179940,0migration/11305-21kthreadcore07:29:441
179940,0migration/112823-21irqrtprio10:24:421
162459944,0cyclictest0-21swapper/209:24:482
162459943,0cyclictest9171-21munin-node10:04:522
162459943,0cyclictest3737-21tail07:54:422
162459943,0cyclictest3571-21lldpd11:45:162
162459943,0cyclictest3571-21lldpd10:34:452
162459943,0cyclictest3571-21lldpd10:29:442
162459943,0cyclictest3524-21snmpd09:29:472
162459943,0cyclictest3524-21snmpd09:16:172
162459943,0cyclictest3524-21snmpd08:25:162
162459943,0cyclictest3524-21snmpd08:24:012
162459943,0cyclictest3524-21snmpd07:30:302
162459943,0cyclictest3524-21snmpd07:22:452
162459943,0cyclictest3468-21irqcore08:39:422
162459943,0cyclictest28536-21awk08:34:412
162459943,0cyclictest18954-21awk10:09:422
162459943,0cyclictest10162-21awk11:19:432
162449944,0cyclictest0-21swapper/111:31:571
162449943,0cyclictest6879-21awk08:19:431
162449943,0cyclictest4990-21awk09:24:401
162449943,0cyclictest3571-21lldpd12:47:161
162449943,0cyclictest3571-21lldpd09:54:441
162449943,0cyclictest3571-21lldpd09:09:421
162449943,0cyclictest3571-21lldpd08:54:421
162449943,0cyclictest3571-21lldpd07:59:111
162449943,0cyclictest3524-21snmpd10:29:481
162449943,0cyclictest3524-21snmpd08:39:011
162449943,0cyclictest3524-21snmpd07:36:151
162449943,0cyclictest27421-21awk10:14:421
162449943,0cyclictest18803-21awk11:24:421
162449943,0cyclictest13981-21awk07:39:421
162449943,0cyclictest12253-21awk11:39:421
162439944,0cyclictest15582-21kworker/0:108:49:400
162439944,0cyclictest15582-21kworker/0:108:22:460
162439944,0cyclictest13525-21kworker/0:007:34:450
162439943,0cyclictest17739-21awk08:04:430
162439943,0cyclictest14055-21awk07:39:420
162439940,0cyclictest27330-21munin-node07:49:400
169940,0watchdog/12991-21fschecks_count11:34:381
169940,0watchdog/124284-21cut11:09:381
169940,0watchdog/122640-21idleruntime09:34:421
169940,0watchdog/121812-21kthreadcore08:04:451
169940,0watchdog/116753-21aten_r1power_fr08:49:381
169940,0watchdog/113818-21ssh12:16:061
169940,0watchdog/10-21swapper/111:59:461
169940,0watchdog/10-21swapper/109:49:461
149940,0migration/015164-21kthreadcore08:24:420
149940,0migration/014213-21kthreadcore08:44:450
8305030,0irq/26-0000:00:0-21swapper/308:12:513
329930,0watchdog/30-21swapper/308:34:413
329930,0watchdog/30-21swapper/307:54:373
29805030,0irq/28-eth0-rx-0-21swapper/308:54:383
29805030,0irq/28-eth0-rx-0-21swapper/308:44:383
29805030,0irq/28-eth0-rx-0-21swapper/307:29:383
179930,0migration/13254-21runrttasks11:51:391
162459932,0cyclictest9583-21cpu07:59:392
162459932,0cyclictest31848-21tune2fs08:14:412
162459932,0cyclictest27583-21grep07:49:392
162459932,0cyclictest24209-21cut08:54:392
162459932,0cyclictest23712-21latency_hist08:09:262
162459932,0cyclictest18991-21memory09:09:452
162459932,0cyclictest17231-21tune2fs08:04:412
162459932,0cyclictest16352-21kthreadcore07:39:442
162459931,0cyclictest271ktimersoftd/207:44:442
162449933,0cyclictest10610-21awk08:44:431
162449932,0cyclictest3524-21snmpd07:45:151
162449932,0cyclictest2882-21tr10:19:401
162449932,0cyclictest17172-21grep07:19:391
162449930,0cyclictest10254-21perl07:59:401
162439933,0cyclictest15582-21kworker/0:109:14:300
162439933,0cyclictest15582-21kworker/0:108:34:340
162439932,0cyclictest3250-21irqbalance08:09:330
169930,0watchdog/10-21swapper/111:14:301
169930,0watchdog/10-21swapper/110:11:021
169930,0watchdog/10-21swapper/108:29:411
169930,0watchdog/10-21swapper/108:14:411
169930,0watchdog/10-21swapper/108:09:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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