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2026-07-16 - 00:42

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #2

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 rack1slot2s.osadl.org (updated Wed Jul 15, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2509523622,0sleep00-21swapper/006:49:140
304450350,0irq/25-eth10-21swapper/306:45:333
2479423430,0sleep20-21swapper/206:45:402
2510723026,0sleep10-21swapper/106:49:231
252149975,0cyclictest20086-21kworker/0:110:10:460
339960,0migration/37915-21latency08:10:003
339960,0migration/35624-21sh10:15:123
339960,0migration/325967-21fschecks_time06:49:583
339960,0migration/316503-21munin-node10:05:003
339960,0migration/314985-21sh10:03:393
29725060,0irq/27-eth0-tx-25425-21munin-node06:49:580
29725060,0irq/27-eth0-tx-15898-21cpuspeed_turbos09:04:572
29715060,0irq/26-eth0-rx-8289-21perl09:39:573
29715060,0irq/26-eth0-rx-6608-21ssh09:37:323
252169960,0cyclictest0-21swapper/210:47:242
252149965,0cyclictest20086-21kworker/0:109:34:480
252149965,0cyclictest20086-21kworker/0:108:59:300
252149960,0cyclictest0-21swapper/010:05:010
149960,0migration/010298-21kthreadcore07:25:020
8215050,0irq/24-0000:00:308-21ls07:19:442
8215050,0irq/24-0000:00:19496-21perf07:09:442
339950,0migration/39952-21kthreadcore09:20:023
339950,0migration/39625-21kthreadcore11:40:023
339950,0migration/38357-21kthreadcore07:00:023
339950,0migration/37693-21kthreadcore08:35:023
339950,0migration/332092-21aten_r1power_cu06:54:563
339950,0migration/324598-21kthreadcore08:25:023
339950,0migration/324273-21irqcore11:29:593
339950,0migration/321836-21munin-node07:35:033
339950,0migration/320248-21kthreadcore09:25:033
339950,0migration/315554-21runrttasks10:24:493
339950,0migration/314381-21taskset07:50:263
339950,0migration/313673-21taskset07:28:483
339950,0migration/312612-21smart_sdb12:00:063
339950,0migration/312440-21kthreadcore11:00:033
29725050,0irq/27-eth0-tx-8141-21hwlatdetect10:39:572
29725050,0irq/27-eth0-tx-7608-21munin-node09:59:562
29725050,0irq/27-eth0-tx-7231-21munin-node11:00:052
29725050,0irq/27-eth0-tx-5863-21ssh10:56:442
29725050,0irq/27-eth0-tx-3581-21munin-node08:35:010
29725050,0irq/27-eth0-tx-31364-21munin-node11:14:592
29725050,0irq/27-eth0-tx-24620-21iostat_ios08:50:000
29725050,0irq/27-eth0-tx-23495-21munin-node10:50:022
29725050,0irq/27-eth0-tx-22004-21ssh09:45:292
29725050,0irq/27-eth0-tx-21984-21ssh11:47:362
29725050,0irq/27-eth0-tx-16454-21kthreadcore11:25:012
29725050,0irq/27-eth0-tx-13978-21ssh12:03:002
29725050,0irq/27-eth0-tx-13429-21open_files09:20:052
29725050,0irq/27-eth0-tx-0-21swapper/209:50:282
29725050,0irq/27-eth0-tx-0-21swapper/209:17:032
29715050,0irq/26-eth0-rx-6205-21ssh11:58:583
29715050,0irq/26-eth0-rx-5135-21vmstat11:15:093
29715050,0irq/26-eth0-rx-24525-21iostat_ios10:50:013
29715050,0irq/26-eth0-rx-23917-21munin-node10:09:543
29715050,0irq/26-eth0-rx-21821-21unixbench_singl09:45:093
29715050,0irq/26-eth0-rx-19087-21grep09:05:023
29715050,0irq/26-eth0-rx-15609-21tail12:04:583
29715050,0irq/26-eth0-rx-13483-21uptime10:40:073
29715050,0irq/26-eth0-rx-0-21swapper/312:14:593
29715050,0irq/26-eth0-rx-0-21swapper/311:50:003
29715050,0irq/26-eth0-rx-0-21swapper/311:44:583
29715050,0irq/26-eth0-rx-0-21swapper/311:28:033
29715050,0irq/26-eth0-rx-0-21swapper/311:12:143
29715050,0irq/26-eth0-rx-0-21swapper/311:05:583
29715050,0irq/26-eth0-rx-0-21swapper/310:56:043
29715050,0irq/26-eth0-rx-0-21swapper/310:35:283
29715050,0irq/26-eth0-rx-0-21swapper/310:19:573
29715050,0irq/26-eth0-rx-0-21swapper/309:55:073
29715050,0irq/26-eth0-rx-0-21swapper/309:10:003
29715050,0irq/26-eth0-rx-0-21swapper/308:55:233
252169955,0cyclictest0-21swapper/211:55:402
252169955,0cyclictest0-21swapper/209:44:112
252169955,0cyclictest0-21swapper/208:51:222
252169955,0cyclictest0-21swapper/208:29:462
252169950,0cyclictest0-21swapper/211:37:422
252169950,0cyclictest0-21swapper/210:21:522
252159950,0cyclictest23353-21diskmemload09:08:351
252159950,0cyclictest0-21swapper/111:09:581
252149955,0cyclictest20086-21kworker/0:110:15:100
252149955,0cyclictest20086-21kworker/0:109:59:460
252149955,0cyclictest20086-21kworker/0:109:55:300
252149955,0cyclictest20086-21kworker/0:109:52:220
252149955,0cyclictest20086-21kworker/0:109:45:100
252149955,0cyclictest20086-21kworker/0:109:30:100
252149955,0cyclictest20086-21kworker/0:109:21:000
252149955,0cyclictest20086-21kworker/0:109:15:100
252149955,0cyclictest20086-21kworker/0:109:10:040
252149955,0cyclictest20086-21kworker/0:109:04:520
252149955,0cyclictest20086-21kworker/0:108:15:000
252149955,0cyclictest20086-21kworker/0:107:39:580
252149955,0cyclictest20086-21kworker/0:107:02:440
252149955,0cyclictest13340-21kworker/0:012:17:170
252149955,0cyclictest13340-21kworker/0:012:10:050
252149955,0cyclictest13340-21kworker/0:012:05:530
252149955,0cyclictest13340-21kworker/0:011:59:470
252149955,0cyclictest13340-21kworker/0:011:55:130
252149955,0cyclictest13340-21kworker/0:011:49:590
252149955,0cyclictest13340-21kworker/0:011:34:590
252149955,0cyclictest13340-21kworker/0:011:29:450
252149955,0cyclictest13340-21kworker/0:011:25:030
252149955,0cyclictest13340-21kworker/0:011:20:450
252149955,0cyclictest13340-21kworker/0:011:15:070
252149955,0cyclictest13340-21kworker/0:011:04:510
252149955,0cyclictest13340-21kworker/0:011:00:270
252149955,0cyclictest13340-21kworker/0:010:55:570
252149955,0cyclictest13340-21kworker/0:010:50:030
252149955,0cyclictest13340-21kworker/0:010:44:450
252149955,0cyclictest13340-21kworker/0:010:35:010
252149955,0cyclictest13340-21kworker/0:010:30:450
252149955,0cyclictest13340-21kworker/0:010:24:470
252149955,0cyclictest13340-21kworker/0:010:20:330
252149950,0cyclictest16702-21munin-run08:44:440
259950,0migration/27406-21switchtime07:45:102
259950,0migration/25320-21switchtime10:15:082
259950,0migration/232345-21munin-node09:34:562
259950,0migration/227650-21kthreadcore11:30:012
259950,0migration/223560-21munin-node08:25:002
259950,0migration/21807-21kthreadcore08:55:022
259950,0migration/216767-21kthreadcore11:04:592
259950,0migration/215282-21sh09:04:352
249950,0watchdog/229113-21idleruntime08:04:592
249950,0watchdog/215612-21gltestperf12:04:582
249950,0watchdog/20-21swapper/209:24:592
169950,0watchdog/131448-21ssh09:13:351
149950,0migration/09763-21kthreadcore10:40:000
149950,0migration/08042-21fschecks_time08:59:590
149950,0migration/07708-21gltestperf11:39:580
149950,0migration/03328-21kthreadcore07:20:020
149950,0migration/030810-21kthreadcore08:30:040
149950,0migration/028757-21taskset08:26:420
149950,0migration/028627-21kthreadcore11:10:040
149950,0migration/027151-21hddtemp_smartct07:14:590
149950,0migration/019825-21kthreadcore07:55:030
149950,0migration/018397-21kthreadcore09:25:030
149950,0migration/014960-21latency_hist11:44:440
149950,0migration/013973-21latency_hist07:29:440
149950,0migration/013666-21fschecks_time07:04:570
339940,0migration/3914-21irqcore09:15:013
339940,0migration/34280-21kthreadcore07:45:033
339940,0migration/327315-21kthreadcore08:50:023
339940,0migration/324137-21fschecks_count10:29:583
339940,0migration/32045-21kthreadcore08:30:053
339940,0migration/314409-21kthreadcore07:05:013
29725040,0irq/27-eth0-tx-785-21kthreadcore09:55:022
29725040,0irq/27-eth0-tx-30141-21ssh10:31:162
29725040,0irq/27-eth0-tx-23252-21ssh11:09:492
29725040,0irq/27-eth0-tx-15973-21munin-node08:20:020
29725040,0irq/27-eth0-tx-0-21swapper/212:18:332
29725040,0irq/27-eth0-tx-0-21swapper/211:49:462
29725040,0irq/27-eth0-tx-0-21swapper/211:19:532
29725040,0irq/27-eth0-tx-0-21swapper/210:34:452
29725040,0irq/27-eth0-tx-0-21swapper/007:50:080
29715040,0irq/26-eth0-rx-0-21swapper/312:09:583
29715040,0irq/26-eth0-rx-0-21swapper/311:38:073
29715040,0irq/26-eth0-rx-0-21swapper/311:19:543
29715040,0irq/26-eth0-rx-0-21swapper/310:45:063
29715040,0irq/26-eth0-rx-0-21swapper/309:50:363
29715040,0irq/26-eth0-rx-0-21swapper/309:31:233
29715040,0irq/26-eth0-rx-0-21swapper/308:59:573
29715040,0irq/26-eth0-rx-0-21swapper/307:19:583
252169943,0cyclictest9187-21awk07:49:592
252169943,0cyclictest8210-21awk07:24:592
252169943,0cyclictest3514-21snmpd10:05:322
252169943,0cyclictest28245-21awk07:40:002
252169943,0cyclictest22537-21awk08:00:002
252169943,0cyclictest17797-21awk08:45:022
252169943,0cyclictest16558-21awk10:24:592
252169943,0cyclictest11091-21awk08:39:582
252169940,0cyclictest0-21swapper/208:17:382
252159943,0cyclictest8858-21awk09:20:001
252159943,0cyclictest589-21awk09:15:001
252159943,0cyclictest3556-21lldpd12:06:061
252159943,0cyclictest3556-21lldpd12:04:061
252159943,0cyclictest3556-21lldpd11:45:361
252159943,0cyclictest3556-21lldpd11:42:061
252159943,0cyclictest3556-21lldpd11:30:051
252159943,0cyclictest3556-21lldpd11:21:061
252159943,0cyclictest3556-21lldpd11:18:061
252159943,0cyclictest3556-21lldpd10:55:051
252159943,0cyclictest3556-21lldpd10:42:351
252159943,0cyclictest3556-21lldpd08:35:031
252159943,0cyclictest3556-21lldpd08:16:041
252159943,0cyclictest3514-21snmpd10:31:331
252159943,0cyclictest3514-21snmpd08:30:171
252159943,0cyclictest3514-21snmpd07:50:021
252159943,0cyclictest3241-21irqbalance12:10:321
252159943,0cyclictest3241-21irqbalance11:49:521
252159943,0cyclictest3241-21irqbalance11:07:221
252159943,0cyclictest3241-21irqbalance08:46:031
252159943,0cyclictest3241-21irqbalance08:39:531
252159943,0cyclictest3241-21irqbalance07:14:531
252159943,0cyclictest3241-21irqbalance07:09:531
252159943,0cyclictest3241-21irqbalance07:05:531
252159943,0cyclictest3241-21irqbalance06:59:531
252159943,0cyclictest26356-21awk06:50:001
252159943,0cyclictest24569-21awk08:50:001
252159943,0cyclictest2315-21sadc08:09:441
252159940,0cyclictest0-21swapper/110:25:211
252149944,0cyclictest20086-21kworker/0:109:39:560
252149944,0cyclictest20086-21kworker/0:108:44:520
252149944,0cyclictest20086-21kworker/0:107:59:580
252149943,0cyclictest3241-21irqbalance07:36:030
252149943,0cyclictest20559-21awk07:10:000
252149943,0cyclictest20086-21kworker/0:108:11:180
259940,0migration/28229-21kthreadcore07:00:022
259940,0migration/28214-21irqrtprio11:40:012
259940,0migration/24362-21hddtemp_smartct08:34:592
259940,0migration/225351-21kthreadcore09:09:592
259940,0migration/21681-21irqcore07:20:012
259940,0migration/214099-21aten_r1power_po07:29:572
249940,0watchdog/223977-21munin-node09:29:592
249940,0watchdog/223008-21aten2.4-expect12:09:542
249940,0watchdog/221072-21diskstats07:34:592
249940,0watchdog/20-21swapper/210:09:462
249940,0watchdog/20-21swapper/208:09:592
249940,0watchdog/20-21swapper/207:54:592
179940,0migration/15548-21unixbench_singl10:15:091
179940,0migration/131981-21sh09:34:491
179940,0migration/123252-21kthreadcore07:35:031
179940,0migration/116557-21fschecks_time08:19:581
179940,0migration/115727-21taskset09:44:471
179940,0migration/113276-21sh09:40:041
179940,0migration/11185-21kthreadcore09:55:021
169940,0watchdog/19540-21kthreadcore09:00:031
169940,0watchdog/15117-21ssh12:15:581
169940,0watchdog/14283-21kthreadcore06:55:031
169940,0watchdog/1386-21ps10:35:021
169940,0watchdog/131501-21ssh10:14:381
169940,0watchdog/131329-21tr07:40:031
169940,0watchdog/128908-21kthreadcore09:50:021
169940,0watchdog/12855-21kernelversion07:45:031
169940,0watchdog/125576-21cut09:30:031
169940,0watchdog/118051-21kthreadcore09:25:031
169940,0watchdog/116072-21entropy10:04:581
169940,0watchdog/115815-21fschecks_time11:24:581
169940,0watchdog/115701-21gltestperf07:54:591
169940,0watchdog/110499-21grep10:20:021
169940,0watchdog/10-21swapper/111:55:021
169940,0watchdog/10-21swapper/110:59:581
169940,0watchdog/10-21swapper/110:50:021
169940,0watchdog/10-21swapper/108:54:591
149940,0migration/032449-21df_abs06:54:580
29715030,0irq/26-eth0-rx-0-21swapper/308:19:563
29715030,0irq/26-eth0-rx-0-21swapper/308:15:043
29715030,0irq/26-eth0-rx-0-21swapper/307:40:073
29715030,0irq/26-eth0-rx-0-21swapper/307:29:543
29715030,0irq/26-eth0-rx-0-21swapper/307:18:473
29715030,0irq/26-eth0-rx-0-21swapper/307:10:393
252169932,0cyclictest26293-21awk06:50:002
252169932,0cyclictest16930-21awk08:20:002
252159932,0cyclictest8562-21awk09:59:591
252159932,0cyclictest8323-21awk07:25:001
252159932,0cyclictest1476-21awk07:20:001
252149933,0cyclictest20086-21kworker/0:108:04:560
252149930,0cyclictest1569-21munin-node07:44:560
249930,0watchdog/24284-21kthreadcore06:55:032
249930,0watchdog/20-21swapper/207:09:592
179930,0migration/114618-21fschecks_time07:29:591
169930,0watchdog/131210-21rm11:34:541
169930,0watchdog/10-21swapper/110:45:101
169930,0watchdog/10-21swapper/108:25:031
169930,0watchdog/10-21swapper/108:09:591
169930,0watchdog/10-21swapper/107:59:551
329920,0watchdog/317254-21munin-node08:45:003
29715020,0irq/26-eth0-rx-0-21swapper/308:39:443
29715020,0irq/26-eth0-rx-0-21swapper/308:04:443
29715020,0irq/26-eth0-rx-0-21swapper/307:59:523
29715020,0irq/26-eth0-rx-0-21swapper/307:54:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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