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2026-03-30 - 15:53
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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 the 376 highest latencies:
System rack1slot8.osadl.org (updated Mon Mar 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1742799806722,73cyclictest0-21swapper/007:35:200
1742899800738,45cyclictest0-21swapper/107:10:041
1742799797737,50cyclictest0-21swapper/007:10:040
1742899789699,74cyclictest27250-21strings07:35:201
171782610587,16sleep00-21swapper/007:07:500
170322398379,12sleep10-21swapper/107:06:261
228699850,4rtkit-daemon2285-21rtkit-daemon11:49:091
17427997130,35cyclictest14429-21ssh10:40:120
17427996936,26cyclictest0-21swapper/012:33:010
244882680,5sleep124487-21expr11:55:261
17427996832,12cyclictest11867-21df_inode10:35:160
17427996824,38cyclictest22842-21unixbench_singl09:55:280
17427996734,9cyclictest8104-21df_inode09:30:140
17427996733,29cyclictest4936-21ssh11:20:200
17427996730,10cyclictest14263-21ssh12:35:230
17427996727,33cyclictest310-21munin-node10:15:290
17427996646,15cyclictest0-21swapper/011:55:300
17427996644,17cyclictest0-21swapper/008:20:170
17427996640,17cyclictest0-21swapper/010:20:170
17427996631,11cyclictest3157-21munin-run08:00:010
17427996627,17cyclictest26461-21ssh10:03:040
17427996620,32cyclictest0-21swapper/008:50:240
17427996536,23cyclictest451-21ssh12:10:260
17427996534,10cyclictest30012-21munin-node10:10:170
17427996524,27cyclictest18639-21ssh10:46:340
113182650,3sleep0221rcuc/011:31:400
228699640,5rtkit-daemon2285-21rtkit-daemon12:16:510
17427996443,16cyclictest0-21swapper/011:50:190
17427996443,16cyclictest0-21swapper/011:01:570
17427996442,17cyclictest0-21swapper/009:50:200
17427996442,17cyclictest0-21swapper/009:26:110
17427996441,18cyclictest31718-21ntp_states11:10:230
17427996433,26cyclictest5127-21munin-node08:05:120
17427996432,26cyclictest30153-21timerandwakeup12:05:280
17427996431,28cyclictest20602-21crond11:50:010
17427996430,10cyclictest25182-21idleruntime-cro11:00:010
17427996427,31cyclictest5086-21ssh12:20:040
17427996426,32cyclictest28486-21ssh10:05:320
17428996329,28cyclictest10829-21munin-node09:35:131
17428996327,19cyclictest30531-21munin-node10:10:171
17427996342,16cyclictest0-21swapper/007:25:140
17427996337,19cyclictest0-21swapper/011:43:440
17427996326,30cyclictest7706-21ssh10:27:020
17427996325,33cyclictest3096-21diskmemload11:17:000
17427996323,34cyclictest15585-21ssh09:43:450
17427996233,23cyclictest29365-21ssh09:10:220
17427996231,11cyclictest16700-21irqstats09:45:210
17427996230,26cyclictest31414-21munin-node09:15:110
17427996226,30cyclictest12297-21ssh09:36:590
17427996225,31cyclictest30613-21ssh11:09:350
17427996225,31cyclictest2475-21ssh09:20:170
17427996225,30cyclictest12338-21munin-node08:25:210
17428996142,14cyclictest88750irq/45-eth0-rx-10:58:041
17428996142,14cyclictest1568-21runrttasks10:44:291
17427996140,16cyclictest0-21swapper/007:30:150
17427996132,8cyclictest13104-21memory11:35:200
17427996125,30cyclictest9262-21ssh12:25:560
17427996123,33cyclictest19997-21pgrep10:50:140
17427996122,33cyclictest8771-21ssh10:30:090
17428996043,10cyclictest8255-21sort09:30:161
17428996040,15cyclictest7213-21df_abs11:25:131
17428996040,15cyclictest532-21munin-node12:10:271
17428996039,17cyclictest28445-21diskmemload12:05:261
17427996033,11cyclictest7271-21df_inode11:25:130
17427996031,24cyclictest0-21swapper/007:20:010
17427996029,25cyclictest10382-21crond08:20:000
17427996025,29cyclictest21178-21munin-node07:20:130
17427996024,15cyclictest28730-21ssh12:04:220
17428995942,10cyclictest20437-21munin-node08:45:231
17428995940,12cyclictest11614-21munin-node12:30:251
17428995934,16cyclictest1568-21runrttasks11:20:401
17428995933,20cyclictest21706-21munin-node07:20:191
17428995927,27cyclictest16600-21munin-node08:35:191
17428995925,28cyclictest27902-21sh11:04:451
17428995921,31cyclictest0-21swapper/111:31:211
17427995925,26cyclictest7605-21uname08:10:200
17428995838,15cyclictest9030-21munin-node10:30:131
17428995837,16cyclictest28000-21munin-node10:05:221
17428995836,16cyclictest21117-21df_abs11:50:181
17428995834,16cyclictest29414-21yum11:05:291
17428995816,36cyclictest0-21swapper/109:55:411
17427995827,26cyclictest922-21runrttasks07:52:150
17427995825,9cyclictest14282-21aten_r1power_vo08:30:140
17428995733,16cyclictest26322-21munin-node12:00:201
17428995732,16cyclictest28445-21diskmemload11:15:141
17428995730,21cyclictest31187-21munin-node07:45:251
17428995727,24cyclictest6779-21latency_hist08:10:011
17428995723,28cyclictest4458-21sh12:18:251
17427995741,9cyclictest19560-21munin-node08:45:230
17427995729,23cyclictest23195-21telnet08:55:130
17427995726,26cyclictest18770-21timerwakeupswit08:40:240
228699560,4rtkit-daemon2285-21rtkit-daemon10:04:371
17428995640,11cyclictest6561-21ssh10:25:181
17428995637,15cyclictest2681-21munin-node09:20:201
17428995637,13cyclictest19932-21munin-node10:50:131
17428995631,16cyclictest15649-21ssh11:40:151
17428995630,16cyclictest31484-21iostat11:10:181
17428995630,16cyclictest17629-21munin-node10:45:181
17428995629,22cyclictest2097-21munin-node07:55:201
17428995627,23cyclictest24905-21latency_hist09:00:011
17428995626,21cyclictest29154-21munin-node09:10:181
17428995623,15cyclictest25587-21missed_timers09:00:181
17427995625,25cyclictest26788-21munin-node09:05:120
17428995534,15cyclictest336-21munin-node07:50:231
17428995534,15cyclictest16297-21munin-node09:45:151
17428995533,17cyclictest6360-21munin-node12:20:281
17428995533,16cyclictest13672-21munin-node12:35:141
17428995531,17cyclictest1568-21runrttasks09:43:521
17428995529,16cyclictest7890-21munin-node12:25:241
17428995526,23cyclictest32425-21timerandwakeup09:15:251
17427995525,9cyclictest16022-21aten_r1power_fr08:35:120
17427995525,24cyclictest25461-21if_eth009:00:160
17427995524,9cyclictest3501-21cpu08:00:130
17428995436,10cyclictest19717-21gltestperf07:15:171
17428995434,15cyclictest3386-21aten_r1power_fr08:00:121
17428995432,17cyclictest1568-21runrttasks11:37:121
17428995432,16cyclictest9056-21munin-node08:15:141
17428995432,16cyclictest12632-21munin-node10:35:261
17428995429,20cyclictest14525-21gltestperf08:30:161
17428995426,22cyclictest694-21head10:15:171
17427995434,12cyclictest30037-21idleruntime-cro07:45:010
17427995426,9cyclictest30190-21munin-node07:45:240
17428995334,14cyclictest5073-21ssh09:25:131
17428995333,15cyclictest3382-21munin-node10:20:121
17428995332,15cyclictest24782-21munin-node07:30:171
17428995331,17cyclictest11001-21munin-node08:20:171
17428995330,17cyclictest12413-21munin-node08:25:101
17428995329,18cyclictest28631-21taskset07:40:141
17428995328,17cyclictest21428-21munin-node08:50:121
17428995322,26cyclictest0-21swapper/109:05:171
17428995236,11cyclictest19605-21sh09:50:201
17428995231,15cyclictest23735-21munin-node07:25:201
17428995230,16cyclictest18289-21munin-node08:40:171
17428995228,19cyclictest8085-21unixbench_singl08:10:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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