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2026-06-05 - 13:38

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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.

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 376 highest latencies:
System rack4slot1s.osadl.org (updated Fri Jun 05, 2026 00:44:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3045921060,4sleep20-21swapper/219:24:312
3045921060,4sleep20-21swapper/219:24:312
3045921060,4sleep20-21swapper/219:24:312
2440121050,2sleep30-21swapper/322:02:593
2440121050,2sleep30-21swapper/322:02:593
39392990,1sleep0171ktimers/019:42:460
39392990,1sleep0171ktimers/019:42:460
39392990,1sleep0171ktimers/019:42:460
95192860,3sleep30-21swapper/321:22:593
95192860,3sleep30-21swapper/321:22:593
95192860,3sleep30-21swapper/321:22:593
46202860,2sleep20-21swapper/200:02:582
46202860,2sleep20-21swapper/200:02:582
46202860,2sleep20-21swapper/200:02:582
78792760,1chrt0-21swapper/019:52:550
78792760,1chrt0-21swapper/019:52:550
78792760,1chrt0-21swapper/019:52:550
129622730,3chrt0-21swapper/200:23:082
129622730,3chrt0-21swapper/200:23:082
129622730,3chrt0-21swapper/200:23:082
56772720,3chrt0-21swapper/300:03:353
56772720,3chrt0-21swapper/300:03:353
56772720,3chrt0-21swapper/300:03:353
32562710,2chrt0-21swapper/322:32:583
32562710,2chrt0-21swapper/322:32:583
220202660,3sleep20-21swapper/223:22:582
220202660,3sleep20-21swapper/223:22:582
106972650,3sleep10-21swapper/100:18:051
106972650,3sleep10-21swapper/100:18:051
24152610,4sleep00-21swapper/022:28:080
24152610,4sleep00-21swapper/022:28:080
24152610,4sleep00-21swapper/022:28:080
326782580,3sleep00-21swapper/022:23:060
326782580,3sleep00-21swapper/022:23:060
326782580,3sleep00-21swapper/022:23:060
323692570,1chrt32374-21unixbench_singl23:48:080
323692570,1chrt32374-21unixbench_singl23:48:080
68982540,3sleep20-21swapper/200:08:042
68982540,3sleep20-21swapper/200:08:042
68982540,3sleep20-21swapper/200:08:042
184452540,2chrt0-21swapper/320:18:063
184452540,2chrt0-21swapper/320:18:063
25694995219,30cyclictest4230-21latency_hist00:02:500
25694995219,30cyclictest4230-21latency_hist00:02:500
122922520,1sleep0201rcuc/020:03:000
122922520,1sleep0201rcuc/020:03:000
295002490,2sleep30-21swapper/319:22:593
295002490,2sleep30-21swapper/319:22:593
295002490,2sleep30-21swapper/319:22:593
25694994941,4cyclictest0-21swapper/000:02:570
25694994941,4cyclictest0-21swapper/000:02:570
25694994941,4cyclictest0-21swapper/000:02:570
291132480,3sleep20-21swapper/223:42:472
291132480,3sleep20-21swapper/223:42:472
291132480,3sleep20-21swapper/223:42:472
179062450,1sleep2351rcuc/221:43:082
179062450,1sleep2351rcuc/221:43:082
179062450,1sleep2351rcuc/221:43:082
231422440,3sleep025685-21cyclictest21:58:050
231422440,3sleep025685-21cyclictest21:58:050
29052410,3chrt0-21swapper/221:03:082
29052410,3chrt0-21swapper/221:03:082
163782410,4sleep0201rcuc/000:33:030
163782410,4sleep0201rcuc/000:33:030
79752380,3sleep00-21swapper/021:18:020
79752380,3sleep00-21swapper/021:18:020
29762380,3sleep30-21swapper/319:38:023
29762380,3sleep30-21swapper/319:38:023
29762380,3sleep30-21swapper/319:38:023
90402370,2chrt9041-21grep00:13:050
90402370,2chrt9041-21grep00:13:050
25696993528,5cyclictest9063-21latency_hist21:22:461
25696993528,5cyclictest9063-21latency_hist21:22:461
25696993528,5cyclictest32380-21unixbench_singl23:48:081
25696993528,5cyclictest32380-21unixbench_singl23:48:081
25696993427,6cyclictest18494-21threads00:38:081
25696993427,6cyclictest18494-21threads00:38:081
25696993425,7cyclictest13638-21fschecks_count20:07:571
25696993425,7cyclictest13638-21fschecks_count20:07:571
25694993326,5cyclictest5555-21sh21:12:570
25694993326,5cyclictest5555-21sh21:12:570
212492330,3sleep10-21swapper/121:53:041
212492330,3sleep10-21swapper/121:53:041
101712330,3sleep30-21swapper/300:17:583
101712330,3sleep30-21swapper/300:17:583
25696993228,3cyclictest547-21rs:main1
25696993228,3cyclictest547-21rs:main1
25694993227,3cyclictest0-21swapper/020:52:440
25694993227,3cyclictest0-21swapper/020:52:440
25694993227,3cyclictest0-21swapper/020:52:440
25694993225,5cyclictest26924-21processes22:08:060
25694993225,5cyclictest26924-21processes22:08:060
25694993225,5cyclictest16436-21gltestperf23:07:580
25694993225,5cyclictest16436-21gltestperf23:07:580
25694993225,5cyclictest16436-21gltestperf23:07:580
25696993125,4cyclictest23035-21fschecks_count20:32:571
25696993125,4cyclictest23035-21fschecks_count20:32:571
25694993124,5cyclictest6969-21cut22:42:570
25694993124,5cyclictest6969-21cut22:42:570
94042300,2sleep19443-21ntpq22:48:041
94042300,2sleep19443-21ntpq22:48:041
94042300,2sleep19443-21ntpq22:48:041
25696993024,4cyclictest749-21runrttasks21:38:071
25696993024,4cyclictest749-21runrttasks21:38:071
25696993024,4cyclictest749-21runrttasks21:38:071
25696993024,4cyclictest16928-21ntp_offset23:08:031
25696993024,4cyclictest16928-21ntp_offset23:08:031
25696993024,4cyclictest16928-21ntp_offset23:08:031
25696993022,6cyclictest5868-21latency_hist19:47:481
25696993022,6cyclictest5868-21latency_hist19:47:481
25696993022,6cyclictest5868-21latency_hist19:47:481
25696993022,6cyclictest5868-21latency_hist19:47:481
25696993022,6cyclictest27127-21threads22:08:071
25696993022,6cyclictest27127-21threads22:08:071
25696993022,6cyclictest16311-21fschecks_count23:07:571
25696993022,6cyclictest16311-21fschecks_count23:07:571
25696993022,6cyclictest16311-21fschecks_count23:07:571
25694993025,3cyclictest0-21swapper/000:32:550
25694993025,3cyclictest0-21swapper/000:32:550
25694993023,5cyclictest26034-21kernelversion23:33:000
25694993023,5cyclictest26034-21kernelversion23:33:000
25694993023,5cyclictest26034-21kernelversion23:33:000
10112300,3sleep20-21swapper/220:58:052
10112300,3sleep20-21swapper/220:58:052
25696992922,5cyclictest23925-21cut23:27:571
25696992922,5cyclictest23925-21cut23:27:571
25696992921,6cyclictest14548-21sshd21:36:121
25696992921,6cyclictest14548-21sshd21:36:121
25696992921,6cyclictest14548-21sshd21:36:121
25694992925,3cyclictest26378-21latency_hist20:42:440
25694992925,3cyclictest26378-21latency_hist20:42:440
25694992924,4cyclictest17784-21gltestperf00:37:590
25694992924,4cyclictest17784-21gltestperf00:37:590
25694992922,5cyclictest12360-21kernelversion00:23:000
25694992922,5cyclictest12360-21kernelversion00:23:000
25694992922,5cyclictest12360-21kernelversion00:23:000
2570299287,15cyclictest0-21swapper/200:02:512
2570299287,15cyclictest0-21swapper/200:02:512
25696992823,3cyclictest4153-21kworker/u9:4-nfsiod00:03:401
25696992823,3cyclictest4153-21kworker/u9:4-nfsiod00:03:401
25696992823,3cyclictest4153-21kworker/u9:4-nfsiod00:03:401
25696992823,3cyclictest0-21swapper/119:27:571
25696992823,3cyclictest0-21swapper/119:27:571
25696992821,5cyclictest2851-21latency_hist22:32:461
25696992821,5cyclictest2851-21latency_hist22:32:461
25696992821,5cyclictest2851-21latency_hist22:32:461
25696992821,5cyclictest25685-21cyclictest22:07:571
25696992821,5cyclictest25685-21cyclictest22:07:571
25694992823,3cyclictest25685-21cyclictest23:02:560
25694992823,3cyclictest25685-21cyclictest23:02:560
25694992823,3cyclictest0-21swapper/021:43:060
25694992823,3cyclictest0-21swapper/021:43:060
25694992823,3cyclictest0-21swapper/021:43:060
25694992822,5cyclictest27979-21sshd20:44:110
25694992822,5cyclictest27979-21sshd20:44:110
25694992821,6cyclictest11230-21needreboot22:53:030
25694992821,6cyclictest11230-21needreboot22:53:030
25694992821,5cyclictest1946-21sshd23:54:130
25694992821,5cyclictest1946-21sshd23:54:130
25694992819,7cyclictest9705-21threads22:48:070
25694992819,7cyclictest9705-21threads22:48:070
25694992819,7cyclictest9705-21threads22:48:070
25696992722,3cyclictest12610-21ntp_offset00:23:041
25696992722,3cyclictest12610-21ntp_offset00:23:041
25696992722,3cyclictest12610-21ntp_offset00:23:041
25696992721,5cyclictest25685-21cyclictest19:58:041
25696992721,5cyclictest25685-21cyclictest19:58:041
25696992721,5cyclictest13012-21missed_timers22:58:021
25696992721,5cyclictest13012-21missed_timers22:58:021
25696992720,5cyclictest14678-21systemd-journal20:16:111
25696992720,5cyclictest14678-21systemd-journal20:16:111
25696992720,5cyclictest14117-21gltestperf00:27:591
25696992720,5cyclictest14117-21gltestperf00:27:591
25696992720,4cyclictest20019-21sendmail_mailst20:23:051
25696992720,4cyclictest20019-21sendmail_mailst20:23:051
25694992721,4cyclictest5648-21ntp_kernel_pll_22:38:030
25694992721,4cyclictest5648-21ntp_kernel_pll_22:38:030
25694992721,3cyclictest11396-21cron20:02:440
25694992721,3cyclictest11396-21cron20:02:440
25694992720,5cyclictest560-21processes20:58:020
25694992720,5cyclictest560-21processes20:58:020
25694992720,4cyclictest0-21swapper/023:17:580
25694992720,4cyclictest0-21swapper/023:17:580
25694992720,4cyclictest0-21swapper/023:17:580
25694992719,6cyclictest28383-21ls23:38:060
25694992719,6cyclictest28383-21ls23:38:060
25694992719,6cyclictest28383-21ls23:38:060
25694992718,7cyclictest10682-21netstat00:18:040
25694992718,7cyclictest10682-21netstat00:18:040
25696992622,2cyclictest0-21swapper/121:02:441
25696992622,2cyclictest0-21swapper/121:02:441
2569699262,18cyclictest4292-21latency_hist00:02:531
2569699262,18cyclictest4292-21latency_hist00:02:531
25696992621,4cyclictest14678-21systemd-journal20:48:121
25696992621,4cyclictest14678-21systemd-journal20:48:121
25696992621,4cyclictest14678-21systemd-journal20:48:121
25696992620,5cyclictest22435-21sshd20:30:051
25696992620,5cyclictest22435-21sshd20:30:051
25696992620,5cyclictest20232-21sshd21:52:121
25696992620,5cyclictest20232-21sshd21:52:121
25696992620,5cyclictest20232-21sshd21:52:121
25696992619,4cyclictest0-21swapper/100:12:591
25696992619,4cyclictest0-21swapper/100:12:591
25696992618,6cyclictest7059-21fschecks_time22:42:571
25696992618,6cyclictest7059-21fschecks_time22:42:571
25694992621,4cyclictest749-21runrttasks21:37:560
25694992621,4cyclictest749-21runrttasks21:37:560
25694992621,3cyclictest0-21swapper/021:32:450
25694992621,3cyclictest0-21swapper/021:32:450
25694992621,3cyclictest0-21swapper/021:32:450
25694992621,3cyclictest0-21swapper/000:08:020
25694992621,3cyclictest0-21swapper/000:08:020
25694992621,3cyclictest0-21swapper/000:08:020
25694992620,4cyclictest0-21swapper/021:53:040
25694992620,4cyclictest0-21swapper/021:53:040
25694992619,4cyclictest0-21swapper/023:12:450
25694992619,4cyclictest0-21swapper/023:12:450
25694992619,4cyclictest0-21swapper/023:12:450
25694992618,6cyclictest30865-21latency_hist19:27:520
25694992618,6cyclictest30865-21latency_hist19:27:520
25694992618,6cyclictest30865-21latency_hist19:27:520
25696992519,4cyclictest14678-21systemd-journal00:08:131
25696992519,4cyclictest14678-21systemd-journal00:08:131
25696992519,4cyclictest14678-21systemd-journal00:08:131
25696992518,6cyclictest22864-21kernelversion21:58:011
25696992518,6cyclictest22864-21kernelversion21:58:011
25694992521,3cyclictest31270-21head19:27:580
25694992521,3cyclictest31270-21head19:27:580
25694992521,2cyclictest0-21swapper/020:13:030
25694992521,2cyclictest0-21swapper/020:13:030
25694992519,5cyclictest9545-21gltestperf21:22:590
25694992519,5cyclictest9545-21gltestperf21:22:590
25694992519,5cyclictest9545-21gltestperf21:22:590
25694992519,5cyclictest547-21rs:main0
25694992519,5cyclictest547-21rs:main0
25694992519,5cyclictest547-21rs:main0
25694992519,5cyclictest547-21rs:main0
25694992519,3cyclictest0-21swapper/019:33:030
25694992519,3cyclictest0-21swapper/019:33:030
25694992518,5cyclictest550-21cron20:27:560
25694992518,5cyclictest550-21cron20:27:560
25694992518,5cyclictest550-21cron19:52:560
25694992518,5cyclictest550-21cron19:52:560
284082240,3chrt0-21swapper/320:47:533
284082240,3chrt0-21swapper/320:47:533
25710992415,5cyclictest12012sleep323:53:023
25710992415,5cyclictest12012sleep323:53:023
25696992420,3cyclictest27272-21needreboot20:43:011
25696992420,3cyclictest27272-21needreboot20:43:011
25696992416,6cyclictest31506-21grep20:53:071
25696992416,6cyclictest1249-21needreboot23:53:031
25696992416,6cyclictest1249-21needreboot23:53:031
25694992420,3cyclictest595-21sshd21:52:120
25694992420,3cyclictest595-21sshd21:52:120
25694992420,3cyclictest595-21sshd21:52:120
25694992420,2cyclictest0-21swapper/021:07:440
25694992420,2cyclictest0-21swapper/021:07:440
25694992419,3cyclictest0-21swapper/023:43:060
25694992419,3cyclictest0-21swapper/023:43:060
25694992419,3cyclictest0-21swapper/023:32:570
25694992419,3cyclictest0-21swapper/022:18:060
25694992419,3cyclictest0-21swapper/022:18:060
25694992419,3cyclictest0-21swapper/022:18:060
25694992418,5cyclictest25685-21cyclictest21:08:060
25694992418,5cyclictest25685-21cyclictest21:08:060
25694992418,4cyclictest13497-21kernelversion21:33:000
25694992417,5cyclictest24412-21cut22:02:590
25694992417,5cyclictest24412-21cut22:02:590
25694992414,8cyclictest30118-21cron20:52:570
2571099231,17cyclictest4239-21chrt00:02:503
2571099231,17cyclictest4239-21chrt00:02:503
25696992319,3cyclictest24329-21grep23:28:021
25696992319,3cyclictest24329-21grep23:28:021
25696992319,3cyclictest24329-21grep23:28:021
25696992319,2cyclictest0-21swapper/119:23:061
25696992319,2cyclictest0-21swapper/119:23:061
25696992319,2cyclictest0-21swapper/119:23:061
25696992318,4cyclictest25972-21unixbench_singl20:38:081
25696992318,4cyclictest25972-21unixbench_singl20:38:081
25696992318,3cyclictest0-21swapper/123:37:581
25696992318,3cyclictest0-21swapper/123:37:581
25696992318,3cyclictest0-21swapper/123:37:581
25696992317,4cyclictest0-21swapper/122:23:031
25696992317,4cyclictest0-21swapper/122:23:031
25696992317,4cyclictest0-21swapper/122:23:031
25696992316,5cyclictest11435-21gltestperf21:27:591
25696992316,5cyclictest11435-21gltestperf21:27:591
25696992316,5cyclictest11435-21gltestperf21:27:591
25694992319,2cyclictest0-21swapper/020:24:420
25694992319,2cyclictest0-21swapper/020:24:420
25694992317,5cyclictest21513-21sshd23:22:110
25694992317,5cyclictest21513-21sshd23:22:110
25694992317,5cyclictest21513-21sshd23:22:110
25694992317,3cyclictest0-21swapper/023:27:550
25694992317,3cyclictest0-21swapper/023:27:550
25694992317,3cyclictest0-21swapper/023:27:550
25696992217,4cyclictest14678-21systemd-journal19:40:111
25696992217,4cyclictest14678-21systemd-journal19:40:111
25696992217,4cyclictest14678-21systemd-journal19:40:111
25696992217,3cyclictest0-21swapper/121:07:591
25696992217,3cyclictest0-21swapper/121:07:591
25696992217,3cyclictest0-21swapper/121:07:591
25696992217,3cyclictest0-21swapper/121:07:591
25696992216,4cyclictest6438-21kworker/u9:3-rpciod23:17:581
25696992216,4cyclictest6438-21kworker/u9:3-rpciod23:17:581
25696992216,4cyclictest6438-21kworker/u9:3-rpciod23:17:581
25696992216,4cyclictest0-21swapper/123:43:051
25696992216,4cyclictest0-21swapper/123:43:051
25696992216,3cyclictest0-21swapper/123:18:081
25696992216,3cyclictest0-21swapper/123:18:081
25696992216,3cyclictest0-21swapper/123:18:081
25696992216,3cyclictest0-21swapper/100:33:051
25696992216,3cyclictest0-21swapper/100:33:051
25696992215,4cyclictest0-21swapper/122:38:091
25696992215,4cyclictest0-21swapper/122:38:091
25696992213,7cyclictest26972-21sshd23:35:121
25696992213,7cyclictest26972-21sshd23:35:121
25696992213,7cyclictest26972-21sshd23:35:121
25696992213,7cyclictest1797-21sshd19:35:001
25696992213,7cyclictest1797-21sshd19:35:001
25694992218,3cyclictest25685-21cyclictest21:17:560
25694992218,3cyclictest25685-21cyclictest21:17:560
25694992218,2cyclictest0-21swapper/023:28:060
25694992218,2cyclictest0-21swapper/023:28:060
25694992217,3cyclictest0-21swapper/021:38:010
25694992217,3cyclictest0-21swapper/021:38:010
25694992217,3cyclictest0-21swapper/021:38:010
25694992217,3cyclictest0-21swapper/020:18:040
25694992217,3cyclictest0-21swapper/020:18:040
25694992216,4cyclictest0-21swapper/022:13:060
25694992216,4cyclictest0-21swapper/022:13:060
25694992216,4cyclictest0-21swapper/022:13:060
25696992116,4cyclictest17829-21timerandwakeup21:43:071
25696992116,4cyclictest17829-21timerandwakeup21:43:071
25696992116,4cyclictest17829-21timerandwakeup21:43:071
25696992116,3cyclictest0-21swapper/122:22:451
25696992116,3cyclictest0-21swapper/122:22:451
25696992116,3cyclictest0-21swapper/122:22:451
25696992115,4cyclictest572-21cups-browsed21:03:061
25696992115,4cyclictest572-21cups-browsed21:03:061
25696992115,4cyclictest0-21swapper/119:48:061
25696992115,4cyclictest0-21swapper/119:48:061
25696992115,4cyclictest0-21swapper/119:48:061
25696992114,5cyclictest29643-21latency_hist22:17:461
25696992114,5cyclictest29643-21latency_hist22:17:461
25696992114,5cyclictest29643-21latency_hist22:17:461
25694992116,3cyclictest0-21swapper/020:32:570
25694992116,3cyclictest0-21swapper/020:32:570
25696992015,3cyclictest0-21swapper/121:15:121
25696992015,3cyclictest0-21swapper/121:15:121
25696992015,3cyclictest0-21swapper/120:22:031
25696992015,3cyclictest0-21swapper/120:22:031
25696992013,5cyclictest25685-21cyclictest22:57:441
25696992013,5cyclictest25685-21cyclictest22:57:441
25694992015,3cyclictest0-21swapper/022:33:030
25694992015,3cyclictest0-21swapper/022:33:030
25694992014,3cyclictest0-21swapper/020:08:030
25694992014,3cyclictest0-21swapper/020:08:030
2571099193,9cyclictest0-21swapper/323:03:123
2571099193,9cyclictest0-21swapper/323:03:123
2571099193,9cyclictest0-21swapper/323:03:123
2571099193,9cyclictest0-21swapper/319:28:113
2571099193,9cyclictest0-21swapper/319:28:113
2570299193,9cyclictest0-21swapper/221:21:352
2570299193,9cyclictest0-21swapper/221:21:352
25696991915,3cyclictest25685-21cyclictest21:22:591
25696991915,3cyclictest25685-21cyclictest21:22:591
25696991915,3cyclictest25685-21cyclictest21:22:591
25696991915,2cyclictest0-21swapper/119:53:001
25696991915,2cyclictest0-21swapper/119:53:001
25696991913,5cyclictest11983-21head20:02:571
25696991913,5cyclictest11983-21head20:02:571
207482190,3chrt0-21swapper/321:52:583
207482190,3chrt0-21swapper/321:52:583
2571099183,9cyclictest0-21swapper/321:53:123
2571099183,9cyclictest0-21swapper/321:53:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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