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2026-04-14 - 22:21

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackeslot6s.osadl.org (updated Tue Apr 14, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145840499771,42cyclictest0-21swapper/009:30:010
145840499752,6cyclictest1485558-21/usr/sbin/munin09:45:290
1458404997438,32cyclictest20650irq/252-8000000.ethernet08:45:000
1458408997248,20cyclictest1500203-21munin-plugin-st11:15:002
1458408997248,20cyclictest1500203-21munin-plugin-st11:15:002
1458408997232,35cyclictest1501937-21unixbench_singl11:20:312
145840599715,19cyclictest1465607-21/usr/sbin/munin07:50:181
1458408997021,42cyclictest1483194-21grep09:30:272
1458408996842,21cyclictest1501051-21munin-plugin-st11:20:002
1458405996734,15cyclictest24-21ksoftirqd/109:45:011
1458405996734,15cyclictest24-21ksoftirqd/109:45:011
1458404996723,38cyclictest0-21swapper/007:50:280
145840599669,12cyclictest1463927-21/usr/sbin/munin07:40:191
1458405996658,5cyclictest1459210-21munin-plugin-st07:14:591
1458408996526,33cyclictest311ktimers/211:55:142
1458408996521,39cyclictest0-21swapper/208:15:302
1458408996428,29cyclictest0-21swapper/208:50:012
1458408996422,37cyclictest0-21swapper/207:50:222
1458408996421,38cyclictest0-21swapper/207:40:282
145840499642,5cyclictest1472570-21perl08:30:230
1458404996421,7cyclictest0-21swapper/009:40:310
1458404996421,7cyclictest0-21swapper/009:40:310
145840499641,4cyclictest1472143-21users08:25:270
1458408996319,35cyclictest0-21swapper/209:25:302
1458404996325,33cyclictest0-21swapper/011:40:320
1458404996323,36cyclictest0-21swapper/007:10:270
145840499631,3cyclictest0-21swapper/011:55:010
1458404996223,34cyclictest20650irq/252-8000000.ethernet12:05:130
145840499622,21cyclictest1473285-21diskstats08:35:190
145840499622,21cyclictest1473285-21diskstats08:35:190
145840499621,3cyclictest0-21swapper/007:20:280
1458404996131,26cyclictest0-21swapper/011:20:310
1458404996121,36cyclictest0-21swapper/009:05:260
1458408996021,30cyclictest0-21swapper/209:40:002
1458408996018,32cyclictest0-21swapper/210:30:302
1458408996016,36cyclictest0-21swapper/207:45:282
1458408996016,36cyclictest0-21swapper/207:45:282
1458404996023,33cyclictest0-21swapper/008:50:290
1458404996020,36cyclictest0-21swapper/008:45:200
1458404995921,33cyclictest1467090-21munin-plugin-st08:00:000
145840499591,7cyclictest1500995-21unixbench_singl11:15:290
145840499591,56cyclictest0-21swapper/009:15:210
1458404995829,24cyclictest0-21swapper/011:30:270
1458404995829,24cyclictest0-21swapper/011:30:270
1458404995822,33cyclictest0-21swapper/012:10:150
145840499581,5cyclictest1508257-21grep12:00:190
1458408995721,28cyclictest0-21swapper/212:20:292
1458408995718,32cyclictest0-21swapper/208:20:292
1458408995716,31cyclictest0-21swapper/207:30:002
1458408995713,35cyclictest0-21swapper/211:30:212
1458408995713,35cyclictest0-21swapper/211:30:202
1458404995738,16cyclictest1497583-21sendmail10:59:590
145840899562,10cyclictest1462835-21grep07:30:292
1458404995631,22cyclictest20850irq/208-8000000.ethernet11:35:210
145840499561,2cyclictest0-21swapper/011:15:020
145840499561,2cyclictest0-21swapper/011:15:020
1458408995521,29cyclictest1459158-21grep07:10:282
1458408995515,10cyclictest1491053-21/usr/sbin/munin10:20:172
1458408995515,10cyclictest1491053-21/usr/sbin/munin10:20:172
1458408995512,36cyclictest1283-21cron11:39:592
1458404995529,23cyclictest20850irq/208-8000000.ethernet10:35:200
145840499552,4cyclictest1514755-21sendmail-msp12:40:010
145840499552,4cyclictest1514755-21sendmail-msp12:40:000
145840499551,4cyclictest1491957-21df_inode10:25:190
145840899544,7cyclictest1481517-21head09:20:302
1458408995418,29cyclictest0-21swapper/210:25:282
1458408995411,10cyclictest1461086-21unixbench_multi07:20:282
1458404995428,22cyclictest1482399-21munin-plugin-st09:30:000
145840499541,6cyclictest1483588-21fschecks_time09:35:230
145840499541,5cyclictest0-21swapper/010:40:270
145840499541,44cyclictest1491840-21latency_hist10:25:020
145840499541,44cyclictest1491840-21latency_hist10:25:020
145840499541,44cyclictest1470671-21latency_hist08:20:020
1458404995413,36cyclictest0-21swapper/012:25:200
1458404995413,36cyclictest0-21swapper/012:25:200
145840899538,37cyclictest0-21swapper/208:10:272
145840899534,10cyclictest1486546-21head09:50:282
1458408995326,22cyclictest1460242-21grep07:15:252
1458408995325,24cyclictest1494985-21grep10:40:302
145840899531,9cyclictest1478548-21cut09:05:212
1458408995318,28cyclictest0-21swapper/211:40:312
1458408995316,29cyclictest0-21swapper/209:55:292
1458408995315,30cyclictest1478086-21grep09:00:272
1458408995315,30cyclictest1478086-21grep09:00:272
145840899531,4cyclictest0-21swapper/209:45:012
145840899531,4cyclictest0-21swapper/209:45:012
1458408995312,6cyclictest0-21swapper/211:05:272
1458405995335,12cyclictest0-21swapper/111:20:001
1458404995327,21cyclictest0-21swapper/009:50:280
1458404995326,20cyclictest0-21swapper/008:10:000
145840499532,4cyclictest1479219-21munin-node09:10:100
145840499532,46cyclictest1481219-21meminfo09:20:250
145840499531,46cyclictest1507270-21grep11:55:150
145840499531,3cyclictest1510792-21diskstats12:15:190
145840499531,3cyclictest1498401-21find11:00:290
145840499531,3cyclictest0-21swapper/007:25:260
1458404995313,37cyclictest131ktimers/010:15:270
145840899524,9cyclictest1480582-21grep09:15:302
145840899523,8cyclictest1473737-21tail08:35:302
145840899523,8cyclictest1473737-21tail08:35:302
145840899523,10cyclictest1476336-21grep08:50:292
145840899522,8cyclictest1485466-21phc2sys09:45:272
145840899522,14cyclictest1479760-21grep09:10:292
1458408995214,31cyclictest0-21swapper/211:50:272
145840499529,38cyclictest0-21swapper/012:20:020
145840499522,46cyclictest1462233-21apt-get07:30:170
145840499521,4cyclictest1496107-21apt-get10:50:110
145840499521,47cyclictest1488585-21diskstats10:05:170
145840499521,3cyclictest1477321-21munin-run09:00:010
145840499521,3cyclictest0-21swapper/007:35:250
145840899514,13cyclictest1508663-21sed12:00:282
145840899512,9cyclictest1514681-21grep12:35:312
145840899512,9cyclictest1514681-21grep12:35:312
1458408995119,24cyclictest0-21swapper/211:00:002
1458408995113,9cyclictest0-21swapper/207:55:212
1458408995112,7cyclictest0-21swapper/212:05:182
1458404995122,26cyclictest1489425-21diskstats10:10:180
145840499511,5cyclictest1505634-21df11:45:180
145840499511,4cyclictest1477597-21df09:00:170
145840499511,4cyclictest1477597-21df09:00:170
145840499511,2cyclictest0-21swapper/007:10:010
145840499511,2cyclictest0-21swapper/007:10:010
145840899504,12cyclictest1472975-21head08:30:302
145840899503,7cyclictest1472056-21tail08:25:262
1458408995013,5cyclictest0-21swapper/210:45:292
1458408995012,4cyclictest0-21swapper/208:00:272
1458405995040,6cyclictest1473012-21munin-plugin-st08:35:001
145840499507,39cyclictest0-21swapper/010:30:220
1458404995039,8cyclictest1502833-21munin-plugin-st11:29:590
145840499502,40cyclictest1465531-21cat07:50:010
145840499502,40cyclictest1465531-21cat07:50:010
1458404995022,22cyclictest1469127-21sh08:10:220
145840499501,4cyclictest1464128-21perl07:40:220
145840899493,8cyclictest1513797-21tail12:30:292
1458408994916,5cyclictest1489933-21unixbench_singl10:10:282
145840499493,38cyclictest0-21swapper/008:25:010
145840499492,4cyclictest1487673-21munin-node10:00:120
145840499491,3cyclictest1513447-21fschecks_time12:30:230
145840899484,9cyclictest1463405-21phc2sys07:35:272
145840899483,6cyclictest1468687-21tail08:05:282
145840899483,12cyclictest1489056-21tail10:05:282
1458408994813,6cyclictest0-21swapper/211:25:272
145840899481,16cyclictest274-21systemd-journal11:05:002
145840899472,7cyclictest1488263-21unixbench_singl10:00:302
1458408994711,6cyclictest1512567-21grep12:25:202
1458408994711,6cyclictest1512567-21grep12:25:202
1458405994737,5cyclictest1481559-21munin-plugin-st09:24:591
145840599473,14cyclictest22-21rcuc/109:00:001
145840499473,37cyclictest1459422-21munin-node07:15:010
145840499472,41cyclictest1499029-21meminfo11:05:240
145840499471,9cyclictest1495566-21meminfo10:45:240
145840899465,9cyclictest1511324-21head12:15:302
145840899463,10cyclictest1477252-21head08:55:302
1458405994638,5cyclictest1467945-21munin-plugin-st08:05:011
1458405994633,9cyclictest0-21swapper/108:50:011
145840499466,31cyclictest0-21swapper/008:05:010
145840899454,8cyclictest0-21swapper/211:45:262
145840899453,10cyclictest1490776-21head10:15:282
1458405994533,8cyclictest1499286-21grep11:05:271
145840899443,9cyclictest1510404-21tail12:10:282
1458405994435,5cyclictest0-21swapper/111:00:001
1458405994435,5cyclictest0-21swapper/108:45:001
145840499441,7cyclictest1487250-21/usr/sbin/munin09:55:270
145840899433,9cyclictest1496476-21proc_pri10:50:262
1458408994333,5cyclictest1474675-21grep08:40:292
145840599436,20cyclictest22-21rcuc/110:05:021
1458405994333,7cyclictest1500145-21grep11:10:291
1458405994333,7cyclictest1500145-21grep11:10:291
1458405994232,7cyclictest0-21swapper/107:10:011
1458405994232,7cyclictest0-21swapper/107:10:011
145840599421,2cyclictest0-21swapper/110:25:021
145840599421,2cyclictest0-21swapper/110:25:011
1458408994113,9cyclictest0-21swapper/210:35:282
1458405994130,8cyclictest1467093-21munin-plugin-st08:00:001
1458405994127,9cyclictest0-21swapper/108:30:001
1458405994032,4cyclictest47-21kauditd09:40:001
1458405994029,7cyclictest0-21swapper/107:45:281
1458405994029,7cyclictest0-21swapper/107:45:281
1458405994027,8cyclictest0-21swapper/111:50:271
1458405994026,8cyclictest0-21swapper/112:30:291
1458405994025,10cyclictest0-21swapper/108:55:021
145840599399,18cyclictest1490191-21/usr/sbin/munin10:15:201
1458405993927,8cyclictest274-21systemd-journal11:05:011
1458405993926,8cyclictest0-21swapper/112:00:271
1458405993925,10cyclictest0-21swapper/110:15:011
1458405993924,9cyclictest1487351-21grep09:55:281
1458405993828,6cyclictest1505269-21grep11:40:301
1458405993824,10cyclictest0-21swapper/112:00:001
1458405993819,12cyclictest0-21swapper/107:30:211
145840599381,6cyclictest0-21swapper/110:50:011
145840599381,22cyclictest250-21jbd2/mmcblk1p2-810:50:141
1458405993729,4cyclictest167450irq/126-8000000.ethernet-tx110:30:271
1458405993729,3cyclictest1501505-21sh11:20:221
1458405993727,6cyclictest1515006-21latency_hist12:40:011
1458405993727,6cyclictest1515006-21latency_hist12:40:011
145840599371,4cyclictest0-21swapper/111:50:011
145840599371,4cyclictest0-21swapper/108:25:001
1458405993627,5cyclictest0-21swapper/107:25:011
1458405993625,6cyclictest0-21swapper/110:40:301
1458405993620,9cyclictest0-21swapper/109:30:021
145840599361,3cyclictest0-21swapper/111:40:011
145840599361,2cyclictest0-21swapper/112:15:011
145840599361,2cyclictest0-21swapper/109:05:011
145840599361,2cyclictest0-21swapper/109:05:011
145840599361,28cyclictest0-21swapper/111:25:291
145840599361,28cyclictest0-21swapper/108:35:301
145840599361,28cyclictest0-21swapper/108:35:301
145840599361,27cyclictest0-21swapper/107:35:301
1458405993526,5cyclictest1486616-21munin-plugin-st09:55:001
1458405993520,10cyclictest0-21swapper/112:05:211
1458405993519,8cyclictest0-21swapper/108:15:281
1458405993422,7cyclictest0-21swapper/111:35:011
1458405993422,7cyclictest0-21swapper/111:35:011
145840599341,2cyclictest0-21swapper/108:10:011
145840599332,26cyclictest0-21swapper/112:25:241
145840599332,26cyclictest0-21swapper/112:25:231
1458405993322,6cyclictest0-21swapper/109:10:281
1458405993321,7cyclictest0-21swapper/110:35:281
1458405993321,5cyclictest0-21swapper/108:10:221
1458405993225,4cyclictest1460347-21sendmail07:20:001
1458405993222,7cyclictest1480058-21/usr/sbin/munin09:15:201
1458405993220,9cyclictest0-21swapper/112:15:291
1458405993219,9cyclictest0-21swapper/110:00:201
1458405993211,5cyclictest83250systemd-network09:07:131
145840599311,2cyclictest0-21swapper/109:50:001
1458405993019,4cyclictest0-21swapper/109:30:261
1458405992921,5cyclictest1512218-21munin-plugin-st12:25:001
1458405992821,5cyclictest0-21swapper/107:27:131
1458405992717,7cyclictest1492414-21grep10:25:281
1458408992311,7cyclictest1458495-21wc07:10:022
1458408992311,7cyclictest1458495-21wc07:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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