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2026-01-23 - 06:46
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OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #3

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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackeslot3s.osadl.org (updated Fri Jan 23, 2026 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
341808599873,65cyclictest3514864-21ssh00:30:011
3418080998638,44cyclictest16850irq/134-800000021:45:020
3418080998423,15cyclictest3462828-21munin-run22:35:000
3418080998028,16cyclictest3451284-21sshd22:09:380
3418080998018,6cyclictest16850irq/134-800000000:32:110
3418085997916,25cyclictest3493453-21sh23:42:321
3418095997828,46cyclictest1-21systemd20:25:023
341808099783,9cyclictest3492152-21tr23:39:590
3418080997818,50cyclictest16850irq/134-800000000:35:590
341808099781,4cyclictest3505740-21munin-run00:10:000
341808099777,10cyclictest121ksoftirqd/022:14:500
3418080997734,26cyclictest16850irq/134-800000022:45:020
341808099772,42cyclictest3449011-21ssh22:04:350
3418080997618,49cyclictest16850irq/134-800000022:51:020
3418080997618,49cyclictest16850irq/134-800000021:16:210
3418080997515,50cyclictest16850irq/134-800000022:15:300
341808099741,17cyclictest3512823-21ssh00:25:210
3418095997346,24cyclictest37-21ksoftirqd/323:10:013
3418080997318,15cyclictest275-21dbus-daemon21:10:000
3418080997315,16cyclictest275-21dbus-daemon20:50:000
341808099721,39cyclictest3434992-21ssh21:33:330
341808099712,6cyclictest3502423-21ssh00:02:240
341808099711,11cyclictest3483523-21ssh23:20:120
341808099711,11cyclictest3483523-21ssh23:20:120
3418080997027,10cyclictest3457635-21rm22:23:230
341808099701,7cyclictest3422683-21/usr/sbin/munin20:40:010
3418090996911,4cyclictest3471581-21ssh22:54:232
3418080996931,33cyclictest3424238-21diskmemload23:10:020
3418080996919,45cyclictest16850irq/134-800000000:16:450
3418080996919,13cyclictest3474583-21ssh23:00:300
341808099691,30cyclictest3498584-21ssh23:54:110
3418095996826,38cyclictest3483298-21latency_hist23:20:013
3418090996823,42cyclictest30-21ksoftirqd/222:30:042
341809099682,14cyclictest3418573-21systemd-run19:20:012
341809099682,14cyclictest3418573-21systemd-run19:20:012
3418090996812,3cyclictest3485857-21ssh23:25:292
3418080996831,34cyclictest16950irq/224-800000022:46:150
3418080996831,34cyclictest16950irq/224-800000022:46:150
341808099681,29cyclictest3433409-21latency_hist21:30:020
3418095996726,36cyclictest3465103-21sendmail22:40:003
341809599672,16cyclictest3421371-21cron20:15:003
3418090996726,38cyclictest30-21ksoftirqd/223:50:032
341808099676,18cyclictest3419558-21cron19:40:000
3418080996735,29cyclictest16950irq/224-800000022:36:360
341808099672,5cyclictest120-21kswapd022:00:010
341808099672,43cyclictest3494816-21ssh23:45:220
341808099672,32cyclictest3474239-21latency_hist23:00:020
3418080996720,3cyclictest0-21swapper/000:14:280
3418095996621,6cyclictest3425004-21sh21:11:163
3418090996610,4cyclictest3484031-21ssh23:21:272
3418090996610,4cyclictest3484031-21ssh23:21:262
341808099667,14cyclictest3418811-21modprobe19:25:000
341808099665,19cyclictest3418547-21modprobe19:20:000
341808099665,19cyclictest3418547-21modprobe19:20:000
341808099662,4cyclictest0-21swapper/023:35:020
3418080996623,11cyclictest3444490-21ssh21:54:340
3418080996614,17cyclictest16850irq/134-800000023:57:290
3418080996613,16cyclictest3442431-21ssh21:50:000
3418080996613,16cyclictest3442431-21ssh21:50:000
3418095996520,39cyclictest0-21swapper/321:30:013
3418090996523,37cyclictest3421115-21sshd20:09:372
3418085996517,16cyclictest3461832-21sh22:32:411
341808099656,16cyclictest3421987-21wc20:25:020
3418090996424,35cyclictest3481549-21sh23:16:002
3418085996420,13cyclictest23-21ksoftirqd/121:48:391
3418085996420,13cyclictest23-21ksoftirqd/121:48:391
341808099644,22cyclictest3467602-21systemd-journal19:35:010
341808099643,6cyclictest3492964-21ssh23:41:240
3418080996423,10cyclictest12-21ksoftirqd/022:29:590
341809599634,16cyclictest3460573-21cut22:29:593
3418095996324,35cyclictest37-21ksoftirqd/321:40:023
341809599632,15cyclictest3453679-21munin-plugin-st22:15:003
341809599632,15cyclictest309-21in:imuxsock19:25:003
3418090996325,34cyclictest30-21ksoftirqd/200:22:442
341809099631,15cyclictest3475052-21sshd23:01:382
341808099639,6cyclictest16850irq/134-800000023:19:040
3418080996321,11cyclictest1-21systemd23:15:020
3418095996224,34cyclictest37-21ksoftirqd/300:34:573
3418095996222,13cyclictest37-21ksoftirqd/323:42:243
3418095996219,10cyclictest3419774-21wc19:40:023
341809099622,15cyclictest3489903-21cron23:35:012
3418090996221,38cyclictest30-21ksoftirqd/222:45:482
3418090996221,38cyclictest30-21ksoftirqd/222:45:482
3418095996128,29cyclictest3434612-21sh21:32:383
341809599612,18cyclictest1-21systemd20:20:013
341809599612,15cyclictest3418551-21cut19:20:003
341809599612,15cyclictest3418551-21cut19:20:003
3418095996121,4cyclictest3508883-21sh00:16:433
341809099619,4cyclictest3420076-21sshd19:47:372
341809099614,7cyclictest131rcu_preempt00:40:032
341809099612,15cyclictest3516886-21ssh00:34:372
341809099612,15cyclictest3443704-21ssh21:52:312
341809099612,14cyclictest48-21kcompactd022:10:072
341809099612,14cyclictest3421925-21munin-run20:25:002
3418090996119,38cyclictest30-21ksoftirqd/222:43:352
341809099611,16cyclictest48-21kcompactd022:55:122
341809099611,15cyclictest3419284-21sshd19:30:372
341809099611,13cyclictest3505994-21sh00:10:092
341808599619,18cyclictest3495800-21ssh23:47:411
3418085996114,14cyclictest3424681-21ssh21:10:301
3418095996025,31cyclictest37-21ksoftirqd/321:51:083
341809599602,17cyclictest3487700-21latency_hist23:30:013
341809599602,17cyclictest3424224-21cron21:10:003
341809599602,12cyclictest1-21systemd19:15:003
341809099602,16cyclictest3424380-21ssh21:10:032
3418090996012,3cyclictest0-21swapper/221:35:392
341809099601,15cyclictest3418787-21sshd19:21:372
341809099601,14cyclictest3434452-21ssh21:32:152
341809099601,13cyclictest3422929-21sshd20:42:372
341809099601,13cyclictest3422929-21sshd20:42:372
341809099601,13cyclictest3418244-21sshd19:10:372
3418095995920,5cyclictest3429551-21sh21:21:213
3418095995920,4cyclictest3424238-21diskmemload23:48:423
341809099592,14cyclictest48-21kcompactd023:35:502
341809099591,12cyclictest48-21kcompactd022:25:082
341808099593,51cyclictest3467602-21systemd-journal20:10:000
3418080995927,8cyclictest12-21ksoftirqd/020:05:020
341809599583,19cyclictest3423694-21cron21:00:003
341809599583,18cyclictest3480909-21munin-run23:15:003
341809599583,13cyclictest3505721-21modprobe00:10:003
3418095995824,30cyclictest3513157-21sh00:26:093
341809599582,15cyclictest3451456-21munin-plugin-st22:10:003
3418095995819,9cyclictest37-21ksoftirqd/322:05:003
3418095995818,4cyclictest3440951-21sh21:46:273
3418095995818,4cyclictest3440951-21sh21:46:273
3418095995816,6cyclictest0-21swapper/300:01:343
3418090995825,30cyclictest275-21dbus-daemon20:30:012
341809099582,15cyclictest3431633-21rm21:25:442
341809099582,14cyclictest3440291-21sh21:45:022
3418090995819,35cyclictest3508956-21sh00:16:542
3418090995818,36cyclictest3454794-21sh22:17:082
341809099581,13cyclictest364-21snmpd21:16:212
3418090995810,3cyclictest0-21swapper/223:12:012
3418085995815,7cyclictest23-21ksoftirqd/123:02:481
3418085995814,10cyclictest23-21ksoftirqd/122:17:021
3418080995832,9cyclictest12-21ksoftirqd/021:25:020
341809599573,17cyclictest3519540-21latency_hist00:40:023
3418095995726,28cyclictest37-21ksoftirqd/321:15:273
3418095995725,28cyclictest3483544-21sh23:20:163
3418095995725,28cyclictest3483544-21sh23:20:153
341809599572,16cyclictest3474268-21wc23:00:023
341809599572,16cyclictest3467518-21latency_hist22:45:033
3418095995719,7cyclictest37-21ksoftirqd/322:33:533
3418095995717,6cyclictest37-21ksoftirqd/323:04:163
341809099572,16cyclictest3422683-21munin-run20:40:012
341809099572,13cyclictest3503929-21ssh00:05:392
341809099572,12cyclictest364-21snmpd21:10:062
341809099572,11cyclictest3419082-21munin-run19:30:022
341809099571,12cyclictest48-21kcompactd021:45:052
341809099571,12cyclictest48-21kcompactd021:45:042
341809099571,12cyclictest3513741-21ssh00:27:322
341809099571,12cyclictest3496731-21munin-run23:50:012
341809099571,11cyclictest3423211-21systemd-run20:50:002
3418085995715,9cyclictest23-21ksoftirqd/100:16:341
3418085995713,14cyclictest3444992-21ssh21:55:141
3418085995711,15cyclictest3424243-21munin-run21:10:001
3418095995622,30cyclictest3420875-21sh20:05:003
341809099562,11cyclictest364-21snmpd23:56:012
341809099562,10cyclictest48-21kcompactd023:40:172
3418090995616,36cyclictest3448640-21rm22:03:322
341809099561,14cyclictest3445991-21sshd21:57:372
341809099561,13cyclictest364-21snmpd23:06:342
3418085995639,13cyclictest3501145-21ssh23:59:581
341809599553,13cyclictest3492125-21modprobe23:39:593
3418095995521,5cyclictest3470315-21sh22:51:093
3418095995520,10cyclictest37-21ksoftirqd/320:10:013
341809099553,9cyclictest3419556-21cron19:40:002
341809099552,16cyclictest3450176-21sh22:06:482
341809099552,15cyclictest3421385-21munin-run20:15:012
341809099552,14cyclictest3463619-21ssh22:36:332
341809099552,12cyclictest3458230-21ssh22:24:482
341809099551,14cyclictest3501153-40mandb00:00:042
341809099551,14cyclictest3420868-21cron20:05:002
341809099551,12cyclictest3429646-21ssh21:21:342
3418085995540,12cyclictest3465502-21ssh22:40:231
3418085995518,24cyclictest23-21ksoftirqd/120:35:021
3418085995516,9cyclictest23-21ksoftirqd/122:59:381
3418085995513,13cyclictest3469288-21sh22:49:121
3418085995513,13cyclictest3469288-21sh22:49:121
3418080995528,12cyclictest3436420-21ssh21:36:270
3418080995519,6cyclictest16850irq/134-800000021:11:250
3418080995517,4cyclictest131rcu_preempt00:22:070
341809599543,12cyclictest3467602-21systemd-journal20:50:003
3418095995423,10cyclictest37-21ksoftirqd/321:45:003
3418095995421,7cyclictest37-21ksoftirqd/300:20:503
3418095995417,4cyclictest3507950-21latency_hist00:15:023
3418095995413,10cyclictest0-21swapper/300:00:003
341809099542,17cyclictest3421674-21lockfile-remove20:20:002
3418090995418,31cyclictest30-21ksoftirqd/220:55:012
3418085995439,12cyclictest3452210-21ssh22:11:181
3418085995439,12cyclictest3432774-21ssh21:28:371
3418095995317,4cyclictest3438882-21kworker/u8:022:15:283
3418095995316,8cyclictest37-21ksoftirqd/320:55:003
3418095995316,6cyclictest3420606-21latency_hist20:00:003
3418095995316,4cyclictest3489178-21sh23:33:113
341809099533,17cyclictest3420612-21munin-run20:00:002
341809099531,11cyclictest3423741-21true21:00:012
341808599536,15cyclictest3448302-21ssh22:02:441
3418085995340,10cyclictest3471306-21ssh22:53:421
3418080995318,32cyclictest16850irq/134-800000023:25:230
3418095995222,11cyclictest37-21ksoftirqd/322:47:563
3418095995222,11cyclictest37-21ksoftirqd/322:47:563
341809099522,15cyclictest3422426-21munin-run20:35:002
341809099521,12cyclictest3423997-21munin-run21:05:002
341809099521,11cyclictest3420320-21modprobe19:51:372
3418085995240,10cyclictest3434666-21ssh21:32:451
3418085995239,10cyclictest3437684-21ssh21:39:381
3418085995238,11cyclictest3496966-21ssh23:50:051
3418085995237,12cyclictest3450376-21ssh22:07:171
3418085995236,13cyclictest3488061-21ssh23:30:271
3418085995234,14cyclictest3481716-21ssh23:16:241
3418095995126,22cyclictest37-21ksoftirqd/323:53:213
3418095995113,8cyclictest3420445-21latency_hist19:55:023
3418095995112,9cyclictest3419311-21modprobe19:35:003
3418085995139,10cyclictest3479339-21ssh23:11:061
3418085995139,10cyclictest3439634-21ssh21:43:521
3418085995135,13cyclictest3518351-21ssh00:37:441
3418085995133,15cyclictest3429754-21ssh21:21:501
3418085995133,14cyclictest3459863-21ssh22:28:211
3418085995133,14cyclictest3443031-21ssh21:50:561
3418085995132,15cyclictest3502418-21ssh00:02:241
3418085995112,8cyclictest23-21ksoftirqd/100:23:301
3418085995112,7cyclictest23-21ksoftirqd/120:25:011
3418090995014,8cyclictest3419923-21latency_hist19:45:012
3418085995035,12cyclictest3490169-21ssh23:35:071
3418085995034,13cyclictest3507307-21ssh00:13:191
3418085995034,13cyclictest3478627-21ssh23:09:581
3418085995033,14cyclictest3515517-21ssh00:31:201
3418085995033,13cyclictest3457035-21ssh22:21:581
3418085995017,7cyclictest3428671-21ssh21:19:391
341809099499,10cyclictest3418151-21sed19:10:012
3418085994933,14cyclictest3463504-21ssh22:36:181
3418085994933,13cyclictest3485934-21ssh23:25:401
3418085994932,13cyclictest3503770-21ssh00:05:161
3418085994932,13cyclictest3483483-21ssh23:20:071
3418085994932,13cyclictest3483483-21ssh23:20:071
341809599483,14cyclictest3422703-21lockfile-remove20:40:003
3418095994820,5cyclictest37-21ksoftirqd/322:20:423
3418085994818,25cyclictest3418166-21latency_hist19:10:021
3418095994720,9cyclictest37-21ksoftirqd/320:40:063
3418095994720,9cyclictest37-21ksoftirqd/320:40:063
3418095994629,14cyclictest37-21ksoftirqd/322:00:013
3418095994621,7cyclictest37-21ksoftirqd/320:30:033
3418095994616,8cyclictest37-21ksoftirqd/319:30:003
3418085994631,11cyclictest3418581-21munin-run19:20:011
3418085994631,11cyclictest3418581-21munin-run19:20:011
3418080994634,9cyclictest3418075-21cyclictest19:10:010
3418085994532,9cyclictest3423954-21sshd21:01:371
3418085994519,21cyclictest3421560-21latency_hist20:15:021
3418085994436,4cyclictest3421097-21sshd20:05:381
3418085994435,4cyclictest3422175-21munin-run20:30:011
3418085994432,9cyclictest3419294-21sshd19:32:371
3418085994430,10cyclictest3421687-21munin-run20:20:011
3418085994413,6cyclictest131rcu_preempt19:20:031
341808099442,8cyclictest3421654-21munin-run20:20:000
3418085994331,9cyclictest3423420-21sshd20:50:361
3418085994330,10cyclictest364-21snmpd20:30:041
3418085994330,10cyclictest3423181-21sshd20:47:371
3418085994330,10cyclictest3422929-21sshd20:42:371
3418085994330,10cyclictest3422929-21sshd20:42:371
3418085994329,11cyclictest3420065-21sshd19:45:371
3418085994328,12cyclictest3423674-21sshd20:56:371
3418085994328,11cyclictest3419863-21munin-run19:45:011
3418080994320,13cyclictest0-21swapper/020:00:000
3418085994230,9cyclictest3420319-21sshd19:51:371
3418085994217,19cyclictest3421082-21latency_hist20:05:021
3418080994227,11cyclictest3422151-21sshd20:27:370
3418080994132,6cyclictest12850irq/18-4d00000019:55:010
3418080994130,5cyclictest0-21swapper/019:15:010
3418095994029,8cyclictest37-21ksoftirqd/320:35:013
3418085994029,8cyclictest0-21swapper/119:26:571
3418085993923,12cyclictest3419797-21latency_hist19:40:031
341808099398,21cyclictest3467602-21systemd-journal21:00:000
3418080993833,3cyclictest16950irq/224-800000021:02:220
3418080993825,9cyclictest309-21in:imuxsock20:52:380
341808099373,31cyclictest0-21swapper/020:15:020
3418080993720,11cyclictest0-21swapper/019:45:000
341808099371,32cyclictest3422931-21sshd20:42:370
341808099371,32cyclictest3422931-21sshd20:42:370
3418095993627,6cyclictest3420236-21latency_hist19:50:023
3418085993629,4cyclictest364-21snmpd19:10:381
3418085993629,4cyclictest3420612-21munin-run20:00:001
341808099365,26cyclictest1-21systemd19:30:010
341808099346,22cyclictest3422428-21cut20:35:000
341809599332,3cyclictest131rcu_preempt19:45:013
341808099325,22cyclictest3420102-21cut19:50:010
3418095993118,11cyclictest37-21ksoftirqd/321:01:383
3418095992716,8cyclictest0-21swapper/319:10:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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