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2026-08-25 - 16:05

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 Tue Aug 25, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1784226261,0sleep20-21swapper/206:43:252
1776525655,0sleep10-21swapper/106:42:321
304450400,0irq/25-eth10-21swapper/306:41:073
1797123127,0sleep00-21swapper/006:44:510
339960,0migration/38835-21munin-node08:36:133
339960,0migration/35063-21munin-node09:56:103
339960,0migration/33643-21sh11:39:103
339960,0migration/33298-21munin-node10:56:123
339960,0migration/33239-21sh11:59:533
339960,0migration/321279-21sh10:49:333
339960,0migration/320989-21munin-node08:21:103
29725060,0irq/27-eth0-tx-5947-21munin-node07:01:050
29725060,0irq/27-eth0-tx-13582-21munin-node07:31:140
29715060,0irq/26-eth0-rx-24138-21ssh09:10:103
29715060,0irq/26-eth0-rx-0-21swapper/311:48:443
149960,0migration/06333-21munin-node08:56:140
149960,0migration/03713-21fschecks_time08:36:050
149960,0migration/027211-21sh12:15:160
149960,0migration/023020-21sh09:28:180
149960,0migration/012310-21sh11:24:440
8215050,0irq/24-0000:00:23779-21cat08:01:082
4150,0ktimersoftd/00-21swapper/011:12:330
339950,0migration/37981-21timerandwakeup08:11:123
339950,0migration/37189-21kthreadcore11:21:063
339950,0migration/36866-21sh09:39:123
339950,0migration/35576-21taskset10:40:113
339950,0migration/3477-21munin-node09:16:033
339950,0migration/329084-21kthreadcore07:16:093
339950,0migration/325895-21kthreadcore10:51:073
339950,0migration/324284-21gltestperf09:51:033
339950,0migration/323599-21latency06:46:093
339950,0migration/322663-21kthreadcore08:01:083
339950,0migration/322630-21sh10:10:373
339950,0migration/321916-21fschecks_count11:11:023
339950,0migration/317278-21kthreadcore09:46:073
339950,0migration/314001-21fschecks_count11:06:023
339950,0migration/31164-21kthreadcore08:31:083
29725050,0irq/27-eth0-tx-8336-21munin-node09:01:082
29725050,0irq/27-eth0-tx-7953-21ssh09:00:392
29725050,0irq/27-eth0-tx-7681-21ssh09:40:592
29725050,0irq/27-eth0-tx-27847-21munin-node08:06:120
29725050,0irq/27-eth0-tx-26911-21munin-node07:41:040
29725050,0irq/27-eth0-tx-22361-21ssh09:26:202
29725050,0irq/27-eth0-tx-16500-21munin-node08:46:030
29725050,0irq/27-eth0-tx-14156-21fschecks_time11:06:022
29725050,0irq/27-eth0-tx-12677-21if_err_eth012:06:052
29725050,0irq/27-eth0-tx-0-21swapper/211:42:092
29725050,0irq/27-eth0-tx-0-21swapper/211:28:282
29725050,0irq/27-eth0-tx-0-21swapper/210:48:552
29725050,0irq/27-eth0-tx-0-21swapper/210:20:112
29725050,0irq/27-eth0-tx-0-21swapper/209:17:012
29725050,0irq/27-eth0-tx-0-21swapper/008:43:000
29725050,0irq/27-eth0-tx-0-21swapper/008:31:100
29725050,0irq/27-eth0-tx-0-21swapper/007:11:350
29715050,0irq/26-eth0-rx-6200-21cat12:01:063
29715050,0irq/26-eth0-rx-23833-21kthreadcore08:26:073
29715050,0irq/26-eth0-rx-22984-21munin-node10:11:083
29715050,0irq/26-eth0-rx-2037-21munin-node07:46:053
29715050,0irq/26-eth0-rx-1898-21kthreadcore11:16:083
29715050,0irq/26-eth0-rx-1542-21kthreadcore10:16:083
29715050,0irq/26-eth0-rx-11068-21ssh11:42:303
29715050,0irq/26-eth0-rx-0-21swapper/312:12:143
29715050,0irq/26-eth0-rx-0-21swapper/312:09:303
29715050,0irq/26-eth0-rx-0-21swapper/311:30:513
29715050,0irq/26-eth0-rx-0-21swapper/311:01:133
29715050,0irq/26-eth0-rx-0-21swapper/311:01:133
29715050,0irq/26-eth0-rx-0-21swapper/310:31:053
29715050,0irq/26-eth0-rx-0-21swapper/309:11:063
29715050,0irq/26-eth0-rx-0-21swapper/309:01:403
29715050,0irq/26-eth0-rx-0-21swapper/308:59:383
29715050,0irq/26-eth0-rx-0-21swapper/308:51:073
29715050,0irq/26-eth0-rx-0-21swapper/307:31:083
259950,0migration/27900-21sh10:01:052
259950,0migration/26636-21kthreadcore12:01:062
259950,0migration/23899-21sh10:56:482
259950,0migration/23814-21kthreadcore09:36:082
259950,0migration/228574-21sh11:35:482
259950,0migration/225753-21kthreadcore09:31:072
259950,0migration/219536-21sh11:49:112
259950,0migration/212191-21munin-node10:41:132
249950,0watchdog/215306-21cut10:06:002
181269955,0cyclictest0-21swapper/112:00:251
181269955,0cyclictest0-21swapper/110:55:371
181269955,0cyclictest0-21swapper/110:47:341
181269955,0cyclictest0-21swapper/109:15:021
181269955,0cyclictest0-21swapper/106:46:121
181259955,0cyclictest0-21swapper/011:18:420
181259950,0cyclictest0-21swapper/011:00:150
181259950,0cyclictest0-21swapper/009:46:470
179950,0migration/16193-21kthreadcore08:36:091
179950,0migration/131003-21aten_r1power_en10:16:021
179950,0migration/125938-21pmu-power11:51:101
179950,0migration/122184-21aten_r1power_en08:26:011
179950,0migration/114410-21latency_hist07:55:501
169950,0watchdog/14453-21rm11:40:561
169950,0watchdog/127616-21kthreadcore07:16:091
169950,0watchdog/120469-21tr07:36:011
149950,0migration/08125-21fschecks_count09:41:030
149950,0migration/07452-21sh09:19:200
149950,0migration/06723-21latency_hist07:25:500
149950,0migration/032433-21kthreadcore10:16:070
149950,0migration/028552-21kthreadcore08:51:070
149950,0migration/02834-21taskset11:36:520
149950,0migration/027211-21kthreadcore10:31:080
149950,0migration/025126-21aten_r1power_vo06:51:020
149950,0migration/023683-21fschecks_time10:11:030
149950,0migration/023609-21kthreadcore08:26:070
149950,0migration/022611-21kthreadcore11:31:060
149950,0migration/021878-21sh10:08:200
149950,0migration/021679-21kthreadcore09:06:090
149950,0migration/020028-21sh11:50:390
149950,0migration/01814-21fschecks_time07:46:030
149950,0migration/017059-21kthreadcore07:56:060
149950,0migration/016182-21taskset09:05:420
149950,0migration/015285-21latency_hist08:20:500
149950,0migration/014353-21kthreadcore07:06:060
149950,0migration/013143-21kthreadcore09:21:070
149950,0migration/012323-21sh10:41:340
149950,0migration/012271-21taskset11:02:560
149950,0migration/012271-21taskset11:02:560
149950,0migration/011568-21kthreadcore07:51:080
149950,0migration/010039-21sh12:01:140
8215040,0irq/24-0000:00:0-21swapper/207:10:502
339940,0migration/322957-21runrttasks09:28:073
339940,0migration/316603-21aten_r1power_po08:46:013
339940,0migration/311584-21kthreadcore10:21:073
339940,0migration/311221-21kthreadcore07:51:073
29725040,0irq/27-eth0-tx-5510-21munin-node11:01:112
29725040,0irq/27-eth0-tx-5510-21munin-node11:01:112
29725040,0irq/27-eth0-tx-31352-21ssh10:36:062
29725040,0irq/27-eth0-tx-29420-21aten2.4-expect11:16:012
29725040,0irq/27-eth0-tx-28999-21ssh10:32:182
29725040,0irq/27-eth0-tx-23076-21aten2.4-expect10:11:012
29725040,0irq/27-eth0-tx-12585-21unixbench-2d10:21:132
29725040,0irq/27-eth0-tx-0-21swapper/212:10:492
29725040,0irq/27-eth0-tx-0-21swapper/211:56:052
29725040,0irq/27-eth0-tx-0-21swapper/211:51:242
29725040,0irq/27-eth0-tx-0-21swapper/211:36:122
29725040,0irq/27-eth0-tx-0-21swapper/211:20:572
29725040,0irq/27-eth0-tx-0-21swapper/210:50:542
29725040,0irq/27-eth0-tx-0-21swapper/209:51:222
29725040,0irq/27-eth0-tx-0-21swapper/209:21:092
29725040,0irq/27-eth0-tx-0-21swapper/209:11:112
29725040,0irq/27-eth0-tx-0-21swapper/209:06:052
29725040,0irq/27-eth0-tx-0-21swapper/208:51:312
29725040,0irq/27-eth0-tx-0-21swapper/208:48:122
29725040,0irq/27-eth0-tx-0-21swapper/007:26:020
29725040,0irq/27-eth0-tx-0-21swapper/007:16:150
29725040,0irq/27-eth0-tx-0-21swapper/006:56:040
29715040,0irq/26-eth0-rx-29671-21open_files09:31:103
29715040,0irq/26-eth0-rx-0-21swapper/311:51:253
29715040,0irq/26-eth0-rx-0-21swapper/311:26:023
29715040,0irq/26-eth0-rx-0-21swapper/310:41:063
29715040,0irq/26-eth0-rx-0-21swapper/310:25:543
29715040,0irq/26-eth0-rx-0-21swapper/310:01:133
29715040,0irq/26-eth0-rx-0-21swapper/309:41:423
29715040,0irq/26-eth0-rx-0-21swapper/309:25:423
29715040,0irq/26-eth0-rx-0-21swapper/307:43:553
29715040,0irq/26-eth0-rx-0-21swapper/307:11:013
29715040,0irq/26-eth0-rx-0-21swapper/307:06:013
259940,0migration/28124-21cpuspeed_turbos07:51:022
259940,0migration/231434-21kthreadcore08:31:072
259940,0migration/219383-21irqcore06:46:062
259940,0migration/216993-21kthreadcore07:56:062
259940,0migration/216504-21kthreadcore10:26:082
249940,0watchdog/29843-21taskset08:40:562
249940,0watchdog/22969-21if_err_eth1.308:11:042
249940,0watchdog/220467-21grep07:36:012
249940,0watchdog/220105-21grep09:46:082
249940,0watchdog/212616-21aten_r1power_cu07:06:012
249940,0watchdog/20-21swapper/207:16:092
181349943,0cyclictest3514-21snmpd08:27:562
181349943,0cyclictest3514-21snmpd08:25:262
181349943,0cyclictest3514-21snmpd08:19:562
181349943,0cyclictest3514-21snmpd08:05:562
181349943,0cyclictest3514-21snmpd07:45:562
181349943,0cyclictest3514-21snmpd07:21:552
181349943,0cyclictest3514-21snmpd07:04:552
181349943,0cyclictest3514-21snmpd06:56:552
181349943,0cyclictest3514-21snmpd06:52:552
181349943,0cyclictest32327-21awk09:56:022
181349943,0cyclictest27763-21awk07:41:062
181349943,0cyclictest0-21swapper/211:11:072
181269944,0cyclictest0-21swapper/111:11:511
181269944,0cyclictest0-21swapper/110:34:291
181269944,0cyclictest0-21swapper/110:13:121
181269943,0cyclictest9201-21awk09:01:061
181269943,0cyclictest6984-21awk10:41:041
181269943,0cyclictest555-21sort08:56:031
181269943,0cyclictest3556-21lldpd07:31:041
181269943,0cyclictest3514-21snmpd10:56:281
181269943,0cyclictest3514-21snmpd10:23:121
181269943,0cyclictest2951-21awk08:11:041
181269943,0cyclictest28684-21awk08:06:071
181269943,0cyclictest13951-21awk11:26:061
181269943,0cyclictest1045-21awk07:21:061
181259944,0cyclictest0-21swapper/012:07:440
181259944,0cyclictest0-21swapper/010:50:480
181259944,0cyclictest0-21swapper/010:39:550
181259944,0cyclictest0-21swapper/009:55:180
181259943,0cyclictest5417-21awk11:41:060
181259943,0cyclictest3514-21snmpd11:53:130
181259943,0cyclictest3514-21snmpd11:29:430
181259943,0cyclictest3514-21snmpd06:46:400
181259943,0cyclictest3241-21irqbalance11:56:080
181259943,0cyclictest2936-21awk08:11:040
179940,0migration/19615-21kthreadcore09:41:071
179940,0migration/15465-21taskset06:58:021
179940,0migration/1439-21diskmemload11:16:071
179940,0migration/130144-21kthreadcore08:31:071
179940,0migration/125657-21kthreadcore11:31:071
179940,0migration/124136-21latency_hist08:50:501
179940,0migration/124008-21latency_hist09:30:501
179940,0migration/121034-21kthreadcore07:11:071
179940,0migration/118979-21kthreadcore08:21:071
179940,0migration/118199-21kthreadcore09:26:071
179940,0migration/117974-21kthreadcore09:46:071
179940,0migration/114978-21kthreadcore11:06:051
179940,0migration/113792-21kthreadcore08:16:071
179940,0migration/113732-21irqcore07:06:061
179940,0migration/113067-21kthreadcore08:41:081
179940,0migration/111988-21aten_r1power_vo12:06:021
179940,0migration/111115-21ntp_offset11:01:091
179940,0migration/111115-21ntp_offset11:01:091
179940,0migration/110875-21kthreadcore07:26:071
169940,0watchdog/19601-21kthreadcore10:01:081
169940,0watchdog/17261-21ssh09:18:441
169940,0watchdog/14738-21pmu-power09:56:081
169940,0watchdog/116478-21ssh09:05:521
169940,0watchdog/10-21swapper/111:37:561
169940,0watchdog/10-21swapper/110:26:281
169940,0watchdog/10-21swapper/110:06:001
169940,0watchdog/10-21swapper/109:36:081
169940,0watchdog/10-21swapper/109:23:201
169940,0watchdog/10-21swapper/108:51:001
169940,0watchdog/10-21swapper/107:01:091
149940,0migration/032752-21irqstats09:56:040
149940,0migration/021468-21runrttasks10:28:360
149940,0migration/014127-21sh10:03:570
29715030,0irq/26-eth0-rx-0-21swapper/308:41:023
29715030,0irq/26-eth0-rx-0-21swapper/308:16:073
29715030,0irq/26-eth0-rx-0-21swapper/307:58:383
29715030,0irq/26-eth0-rx-0-21swapper/307:26:083
29715030,0irq/26-eth0-rx-0-21swapper/307:01:023
29715030,0irq/26-eth0-rx-0-21swapper/306:56:023
249930,0watchdog/20-21swapper/207:26:132
21484230,0sleep30-21swapper/307:36:063
181349932,0cyclictest3514-21snmpd08:35:562
181349930,0cyclictest14260-21perl07:31:042
181269933,0cyclictest0-21swapper/111:46:041
181269932,0cyclictest24991-21munin-node06:51:021
181269932,0cyclictest16255-21diskmemload12:02:031
181269932,0cyclictest14530-21munin-node07:56:101
181269930,0cyclictest0-21swapper/112:11:061
181259933,0cyclictest19185-21kworker/0:011:06:170
181259933,0cyclictest19185-21kworker/0:010:50:530
181259933,0cyclictest19185-21kworker/0:010:21:130
181259933,0cyclictest19185-21kworker/0:009:30:550
181259933,0cyclictest19185-21kworker/0:009:11:010
181259933,0cyclictest19185-21kworker/0:007:36:020
181259932,0cyclictest16343-21awk08:21:050
181259930,0cyclictest23878-21cut08:01:080
169930,0watchdog/131638-21kthreadcore07:41:091
169930,0watchdog/130440-21ssh10:36:001
169930,0watchdog/10-21swapper/111:21:121
169930,0watchdog/10-21swapper/109:54:201
169930,0watchdog/10-21swapper/108:01:091
149930,0migration/032040-21sh09:35:590
29715020,0irq/26-eth0-rx-0-21swapper/308:06:173
29715020,0irq/26-eth0-rx-0-21swapper/307:21:023
29715020,0irq/26-eth0-rx-0-21swapper/306:51:023
169920,0watchdog/10-21swapper/107:45:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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