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2025-12-09 - 09:58
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Tue Dec 09, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277894499260,14cyclictest0-21swapper/323:09:593
2778944992513,9cyclictest3074564-21turbostat22:39:593
2778944992413,8cyclictest2962134-21turbostat21:30:003
277894499241,2cyclictest0-21swapper/300:22:473
277894499211,16cyclictest3186563-21turbostat23:50:003
277894499201,16cyclictest2874631-21turbostat20:25:003
277894499201,15cyclictest3090592-21turbostat22:49:593
277894499200,18cyclictest2893152-21turbostat20:44:553
277894499200,16cyclictest3153840-21taskset23:28:393
30184042192,14sleep23018443-21apt-get22:05:122
277894499193,13cyclictest3096769-21taskset22:50:533
277894499191,2cyclictest0-21swapper/322:00:473
277894499191,15cyclictest3041470-21taskset22:18:073
277894499191,15cyclictest2849583-21turbostat20:05:013
277894499191,14cyclictest3056735-21taskset22:25:443
277894499191,14cyclictest2938190-21turbostat21:15:013
277894499191,14cyclictest2790674-21taskset19:15:213
277894499190,15cyclictest2992587-21taskset21:46:333
277894499181,14cyclictest3240464-21chrt00:25:193
277894499181,14cyclictest3192729-21taskset23:51:563
277894499181,14cyclictest3160774-21taskset23:31:213
277894499181,14cyclictest3080898-21taskset22:41:073
277894499181,14cyclictest2969690-21taskset21:34:063
277894499181,14cyclictest2886668-21taskset20:31:353
277894499181,14cyclictest2868052-21taskset20:15:313
277894499181,13cyclictest3219916-21taskset00:10:323
277894499181,13cyclictest3105927-21taskset22:58:453
277894499181,13cyclictest3007737-21taskset21:55:223
277894499181,13cyclictest2984304-21taskset21:40:563
277894499181,13cyclictest2843095-21turbostat20:00:013
277894499181,12cyclictest2812148-21taskset19:35:123
2778944991810,5cyclictest2893145-21turbostat20:39:593
277894499180,7cyclictest0-21swapper/322:10:173
277894499180,6cyclictest0-21swapper/323:55:173
277894499180,2cyclictest0-21swapper/300:18:063
277894499175,5cyclictest32052142sleep300:02:553
2778944991714,1cyclictest0-21swapper/323:40:143
277894499171,13cyclictest2929999-21taskset21:06:493
277894499171,13cyclictest2929999-21taskset21:06:483
277894499171,13cyclictest2905273-21chrt20:47:013
277894499171,13cyclictest2830693-21taskset19:49:593
277894499171,12cyclictest3048645-21taskset22:21:063
277894499171,12cyclictest2924075-21turbostat21:05:003
277894499171,12cyclictest2835882-21taskset19:50:183
277894499171,12cyclictest2784945-21taskset19:13:323
277894499170,1cyclictest0-21swapper/323:12:023
277894499170,1cyclictest0-21swapper/323:12:013
277894499170,14cyclictest2861838-21taskset20:13:153
28234582161,2sleep00-21swapper/019:40:230
2778944991613,1cyclictest0-21swapper/323:20:133
277894499161,12cyclictest3261066-21taskset00:37:533
277894499161,12cyclictest3212912-21taskset00:07:463
277894499161,12cyclictest3169028-21taskset23:36:203
277894499161,12cyclictest3114344-21taskset23:04:483
277894499161,12cyclictest3024242-21taskset22:05:523
277894499161,12cyclictest2917828-21taskset20:59:243
277894499161,12cyclictest2880423-21taskset20:25:293
277894499161,12cyclictest2849809-21taskset20:05:063
277894499161,12cyclictest2805339-21chrt19:26:073
277894499161,11cyclictest0-21swapper/300:30:133
277894499160,13cyclictest2952620-21chrt21:21:283
277894499160,13cyclictest2911343-21taskset20:50:343
277894499160,13cyclictest2793732-21taskset19:20:123
31788762151,3sleep00-21swapper/023:45:130
277894499154,8cyclictest2805900-21taskset19:30:103
277894499151,11cyclictest2938427-21taskset21:15:023
277894499151,11cyclictest0-21swapper/321:35:153
277894499150,9cyclictest29943852sleep321:50:053
277894499150,12cyclictest3065734-21taskset22:33:023
277894499150,12cyclictest2823957-21chrt19:40:403
277894499150,10cyclictest3130690-21taskset23:15:013
30144562141,10sleep23015365-21cat22:00:182
27743042141,8sleep12776152-21tr19:05:181
147598140,9rtkit-daemon2785221-21munin-node22:25:140
30978832131,1sleep00-21swapper/022:53:340
28743292130,9sleep02874331-21sshd20:21:270
147598130,9rtkit-daemon2785221-21munin-node22:55:160
31387872121,2sleep1214-21plymouthd23:20:131
30488192120,9sleep13048826-21sh22:21:301
29624512121,8sleep22962485-21apt-get21:30:142
28810312121,8sleep00-21swapper/020:30:110
27729512121,5sleep02772983-21apt-get19:05:130
147598120,8rtkit-daemon2944496-21ssh21:16:102
147598120,8rtkit-daemon2837106-21latency_hist19:55:011
31934182110,3sleep03193531-21tune2fs23:55:150
31470922111,6sleep03147302-21irqcore23:25:160
31298722110,1sleep10-21swapper/123:13:481
31298722110,1sleep10-21swapper/123:13:471
29921682111,2sleep10-21swapper/121:45:321
29113822110,2sleep2214-21plymouthd20:51:052
28625322111,7sleep02862675-21df20:15:130
147598110,7rtkit-daemon899-21cron23:11:010
147598110,7rtkit-daemon899-21cron23:11:000
147598110,7rtkit-daemon3212535-21ssh00:06:592
147598110,7rtkit-daemon3114134-21runrttasks23:04:200
147598110,4rtkit-daemon3121698-21ssh23:08:230
147598110,1rtkit-daemon0-21swapper/123:57:521
32535912100,7sleep03253599-21ssh00:34:060
32518692100,7sleep13252031-21vmstat00:30:261
32454002101,7sleep03245408-21ssh00:28:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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