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2026-01-10 - 02:31

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 Fri Jan 09, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1241827998541,38cyclictest1287847-21munin-plugin-st11:40:003
124182499725,20cyclictest0-21swapper/110:15:011
124182599711,34cyclictest0-21swapper/208:25:012
124182499698,19cyclictest1260095-21/usr/sbin/munin08:55:191
124182499674,19cyclictest1264336-21/usr/sbin/munin09:20:171
1241824996212,16cyclictest0-21swapper/111:00:011
1241824996146,10cyclictest1275106-21munin-plugin-st10:25:001
1241824996135,13cyclictest0-21swapper/108:45:131
1241824996040,12cyclictest1253248-21apt-get08:15:161
1241825995846,9cyclictest311ktimers/207:40:122
1241825995846,9cyclictest311ktimers/207:40:122
124182499589,21cyclictest0-21swapper/109:15:021
1241824995832,15cyclictest0-21swapper/109:35:141
1241825995730,15cyclictest311ktimers/212:05:102
124182499574,18cyclictest0-21swapper/109:00:021
1241824995740,12cyclictest1247352-21apt-get07:40:151
1241824995740,12cyclictest1247352-21apt-get07:40:141
1241824995740,12cyclictest1245654-21apt-get07:30:141
1241824995739,13cyclictest0-21swapper/108:25:121
1241824995736,15cyclictest0-21swapper/112:25:151
1241824995736,15cyclictest0-21swapper/112:25:151
1241824995732,14cyclictest0-21swapper/112:35:111
1241824995731,16cyclictest1282242-21cut11:05:191
1241824995731,13cyclictest0-21swapper/109:55:111
1241824995731,13cyclictest0-21swapper/109:40:141
1241824995637,11cyclictest1252409-21apt-get08:10:151
1241824995634,16cyclictest0-21swapper/112:00:121
1241824995630,14cyclictest0-21swapper/109:30:101
1241824995539,11cyclictest0-21swapper/112:30:131
1241824995539,11cyclictest0-21swapper/112:30:131
1241824995533,11cyclictest0-21swapper/107:15:111
1241824995528,13cyclictest0-21swapper/111:55:131
1241825995440,5cyclictest1292083-21munin-plugin-st12:05:002
1241824995431,14cyclictest1262705-21/usr/sbin/munin09:10:171
1241824995431,12cyclictest1292645-21/usr/sbin/munin12:05:251
1241824995431,12cyclictest0-21swapper/111:00:111
1241824995431,12cyclictest0-21swapper/111:00:111
124182499539,18cyclictest0-21swapper/111:20:021
1241824995343,5cyclictest1272565-21munin-plugin-st10:10:001
1241824995336,10cyclictest1259258-21apt-get08:50:141
1241824995332,11cyclictest0-21swapper/111:35:101
1241824995328,14cyclictest1272829-21/usr/sbin/munin10:10:171
1241825995213,14cyclictest1297412-21apt-config12:35:012
1241825995213,14cyclictest1297412-21apt-config12:35:012
1241824995237,9cyclictest1295438-21sshd12:21:541
1241824995237,9cyclictest0-21swapper/108:40:121
1241824995236,9cyclictest1286363-21/usr/sbin/munin11:30:291
1241824995219,16cyclictest0-21swapper/112:20:011
1241821995243,5cyclictest1246293-21munin-plugin-st07:35:000
1241824995131,13cyclictest1244579-21/usr/sbin/munin07:20:271
1241824995128,16cyclictest1282989-21/usr/sbin/munin11:10:141
1241824995128,14cyclictest1248192-21/usr/sbin/munin07:45:101
1241824995039,6cyclictest1288904-21apt-get11:45:151
1241824995036,6cyclictest1257010-21/usr/sbin/munin08:35:211
1241824995035,8cyclictest1271384-21meminfo10:00:231
1241824995032,12cyclictest0-21swapper/107:50:141
1241824994937,5cyclictest1256299-21/usr/sbin/munin08:30:251
1241824994935,8cyclictest1286151-21sshd11:28:551
1241824994932,11cyclictest0-21swapper/110:45:141
1241824994932,11cyclictest0-21swapper/110:45:141
1241824994931,11cyclictest1250233-21/usr/sbin/munin07:55:271
1241824994929,13cyclictest1242338-21/usr/sbin/munin07:10:261
1241824994929,13cyclictest1242338-21/usr/sbin/munin07:10:261
1241824994841,3cyclictest1279611-21apt-get10:50:151
1241824994838,7cyclictest1293118-21sshd12:10:051
1241824994835,7cyclictest1246762-21/usr/sbin/munin07:35:221
1241824994832,9cyclictest1245166-21/usr/sbin/munin07:25:271
1241824994832,9cyclictest1245166-21/usr/sbin/munin07:25:271
1241824994832,12cyclictest1254410-21/usr/sbin/munin08:20:211
1241824994831,12cyclictest0-21swapper/111:40:141
1241824994823,13cyclictest0-21swapper/108:05:111
1241821994841,4cyclictest167350irq/118-8000000.ethernet-tx012:15:260
124182199483,40cyclictest1253290-21cpu08:15:160
124182199481,8cyclictest0-21swapper/010:00:010
124182199481,43cyclictest1273973-21proc_pri10:15:250
1241825994727,14cyclictest311ktimers/212:10:122
1241824994735,7cyclictest1269870-21/usr/sbin/munin09:50:271
1241824994735,4cyclictest1277075-21apt-get10:35:131
1241824994732,9cyclictest1278155-21/usr/sbin/munin10:40:221
1241824994732,9cyclictest1265259-21/usr/sbin/munin09:25:191
1241824994731,12cyclictest0-21swapper/108:00:121
1241821994739,4cyclictest167350irq/118-8000000.ethernet-tx009:00:200
1241825994638,4cyclictest1261-21rs:main2
1241824994639,4cyclictest1275393-21apt-get10:25:131
1241824994638,5cyclictest1284687-21apt-get11:20:151
1241824994635,7cyclictest1261798-21apt-get09:05:131
1241824994630,9cyclictest1276568-21/usr/sbin/munin10:30:251
1241824994630,9cyclictest1276568-21/usr/sbin/munin10:30:251
1241821994636,5cyclictest1278498-21grep10:40:270
124182199461,9cyclictest0-21swapper/011:50:010
1241825994535,6cyclictest1249633-21grep07:50:282
1241825994533,8cyclictest1298162-21munin-plugin-st12:40:002
1241825994533,7cyclictest1244567-21grep07:20:272
1241825994531,9cyclictest1269128-21unixbench_singl09:45:262
1241824994536,5cyclictest1268552-21apt-get09:45:131
1241821994539,4cyclictest0-21swapper/011:30:110
1241821994537,4cyclictest20850irq/208-8000000.ethernet11:40:260
1241821994537,4cyclictest167350irq/118-8000000.ethernet-tx007:55:130
124182199452,4cyclictest0-21swapper/009:10:180
1241825994432,7cyclictest1277676-21grep10:35:272
1241825994428,10cyclictest0-21swapper/210:30:202
1241825994428,10cyclictest0-21swapper/210:30:202
1241824994429,9cyclictest1290300-21grep11:50:271
1241824994427,10cyclictest1241965-21sed07:10:011
124182199441,5cyclictest0-21swapper/012:00:010
1241825994327,10cyclictest0-21swapper/209:20:282
124182199432,6cyclictest1257016-21meminfo08:35:210
124182199432,37cyclictest0-21swapper/009:45:150
1241825994234,5cyclictest1256520-21munin-plugin-st08:35:012
1241825994229,8cyclictest0-21swapper/211:25:282
1241825994225,9cyclictest0-21swapper/209:00:272
1241825994220,11cyclictest0-21swapper/211:40:262
124182199421,6cyclictest1243760-21munin-run07:20:000
124182199421,39cyclictest0-21swapper/007:10:210
124182199421,39cyclictest0-21swapper/007:10:210
124182599418,14cyclictest1249869-21/usr/sbin/munin07:55:202
1241825994119,15cyclictest311ktimers/209:40:112
1241821994135,3cyclictest14-21rcu_preempt09:20:140
1241821994134,4cyclictest0-21swapper/008:05:140
1241821994124,15cyclictest0-21swapper/012:05:150
124182199412,17cyclictest15-21rcuc/007:40:020
124182199412,17cyclictest15-21rcuc/007:40:010
124182199411,4cyclictest1241901-21latency_hist07:10:000
1241825994036,2cyclictest0-21swapper/207:45:022
1241825994019,16cyclictest311ktimers/210:10:142
1241821994031,7cyclictest131ktimers/011:35:090
124182199402,5cyclictest1266525-21threads09:30:280
124182199402,5cyclictest1252950-21tail08:10:270
124182199402,4cyclictest1291620-21perl12:00:200
124182199402,4cyclictest1244986-21lsblk07:25:210
124182199402,4cyclictest1244986-21lsblk07:25:210
124182199402,36cyclictest0-21swapper/011:15:240
1241821994022,9cyclictest0-21swapper/011:00:280
1241821994022,9cyclictest0-21swapper/011:00:280
124182199401,3cyclictest1254671-21mailstats08:20:270
124182199401,37cyclictest0-21swapper/009:05:240
1241825993920,13cyclictest311ktimers/210:05:112
1241821993929,7cyclictest0-21swapper/010:25:280
124182199392,7cyclictest1244552-21unixbench_singl07:20:270
1241821993923,14cyclictest0-21swapper/009:15:230
124182199391,3cyclictest274-21systemd-journal12:25:200
124182199391,3cyclictest274-21systemd-journal12:25:200
124182199391,36cyclictest0-21swapper/010:35:130
124182199391,33cyclictest0-21swapper/008:50:030
1241825993828,6cyclictest1275276-21grep10:25:012
1241821993833,3cyclictest167350irq/118-8000000.ethernet-tx010:30:190
1241821993833,3cyclictest167350irq/118-8000000.ethernet-tx010:30:190
1241821993829,5cyclictest0-21swapper/011:20:160
1241821993821,15cyclictest0-21swapper/010:45:230
1241821993821,15cyclictest0-21swapper/010:45:230
124182199381,35cyclictest0-21swapper/012:35:200
124182199381,35cyclictest0-21swapper/009:50:130
124182599375,17cyclictest1286363-21/usr/sbin/munin11:30:192
1241825993729,4cyclictest167550irq/134-8000000.ethernet-tx211:40:002
1241825993727,6cyclictest0-21swapper/209:25:302
1241825993727,4cyclictest0-21swapper/208:25:212
1241825993725,7cyclictest0-21swapper/211:15:292
1241825993719,12cyclictest0-21swapper/211:50:242
1241825993715,15cyclictest311ktimers/212:20:132
1241825993713,12cyclictest311ktimers/211:10:122
124182599371,11cyclictest0-21swapper/208:55:012
1241821993730,4cyclictest0-21swapper/010:00:270
1241821993727,6cyclictest1249607-21grep07:50:270
1241821993724,9cyclictest0-21swapper/008:55:280
1241821993721,14cyclictest0-21swapper/009:39:370
124182199371,7cyclictest0-21swapper/011:10:000
124182199371,4cyclictest0-21swapper/010:05:240
124182199371,34cyclictest0-21swapper/011:50:130
124182199371,34cyclictest0-21swapper/008:33:540
124182199371,34cyclictest0-21swapper/007:35:160
124182199371,2cyclictest0-21swapper/012:25:000
124182599364,14cyclictest1258417-21/usr/sbin/munin08:45:182
1241825993626,5cyclictest0-21swapper/209:55:252
1241825993625,6cyclictest0-21swapper/211:00:272
1241825993625,6cyclictest0-21swapper/211:00:262
1241825993623,10cyclictest1258192-21sshd08:40:542
1241825993622,9cyclictest0-21swapper/212:20:002
1241821993632,2cyclictest0-21swapper/010:10:220
124182199362,4cyclictest1258535-21grep08:45:170
1241821993619,15cyclictest0-21swapper/009:25:460
124182199361,33cyclictest0-21swapper/012:30:070
124182199361,33cyclictest0-21swapper/012:30:070
124182199361,33cyclictest0-21swapper/010:23:180
1241825993530,3cyclictest167550irq/134-8000000.ethernet-tx208:00:252
1241825993527,5cyclictest1266554-21grep09:30:282
1241825993526,6cyclictest1262326-21grep09:05:272
1241825993525,6cyclictest0-21swapper/207:25:282
1241825993525,6cyclictest0-21swapper/207:25:282
124182199352,8cyclictest1248490-21/usr/sbin/munin07:45:220
1241821993528,4cyclictest20650irq/252-8000000.ethernet08:25:290
1241821993527,4cyclictest1285666-21tune2fs11:25:190
124182199351,32cyclictest0-21swapper/010:58:310
124182199351,32cyclictest0-21swapper/010:54:330
124182199351,2cyclictest0-21swapper/008:05:010
1241825993426,5cyclictest0-21swapper/211:20:252
1241825993426,4cyclictest30-21rcuc/209:10:002
1241825993423,7cyclictest0-21swapper/210:50:002
1241825993423,7cyclictest0-21swapper/210:50:002
1241825993421,6cyclictest311ktimers/208:20:002
1241825993420,10cyclictest0-21swapper/210:50:292
124182599341,27cyclictest0-21swapper/210:15:102
1241821993428,4cyclictest20850irq/208-8000000.ethernet08:40:150
1241821993419,13cyclictest0-21swapper/011:14:220
124182199341,5cyclictest1293692-21head12:10:280
1241825993325,4cyclictest1245808-21fschecks_time07:30:192
1241825993324,5cyclictest0-21swapper/211:55:292
1241825993320,9cyclictest0-21swapper/212:25:272
1241825993320,9cyclictest0-21swapper/212:25:272
124182599331,27cyclictest0-21swapper/208:05:232
124182199331,30cyclictest0-21swapper/009:41:500
1241825993221,8cyclictest0-21swapper/207:15:272
1241825993221,7cyclictest0-21swapper/209:15:222
1241825993220,8cyclictest1260738-21run-parts09:00:002
124182599316,2cyclictest0-21swapper/208:40:012
1241825993124,5cyclictest311ktimers/207:15:012
1241825993124,5cyclictest311ktimers/207:15:012
1241825993116,10cyclictest0-21swapper/207:35:202
1241825993113,9cyclictest1277929-21/usr/sbin/munin10:40:182
1241825993113,14cyclictest311ktimers/211:45:112
1241825993022,5cyclictest0-21swapper/211:05:282
1241825993022,5cyclictest0-21swapper/210:25:262
1241825993021,5cyclictest0-21swapper/208:10:262
1241825992918,7cyclictest1269452-21dropbear09:50:172
1241825992822,4cyclictest0-21swapper/210:55:172
1241825992617,6cyclictest1-21systemd10:02:332
1241825992516,6cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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