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2025-12-27 - 17:07
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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 Sat Dec 27, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291090522270,222sleep02858849-21kworker/u16:1+efi_rts_wq11:35:140
25651042240,1sleep30-21swapper/307:05:213
28482802220,2sleep1321rcuc/110:45:171
256645199201,14cyclictest2743223-21taskset09:25:113
28074382190,9sleep22807497-21sort10:15:022
2566451991816,1cyclictest0-21swapper/310:50:003
2566451991815,1cyclictest0-21swapper/309:05:223
2566451991815,1cyclictest0-21swapper/307:40:243
25661532181,12sleep02566174-21munin-run07:10:000
2566451991715,1cyclictest0-21swapper/311:50:163
2566451991715,1cyclictest0-21swapper/309:20:003
256645199171,12cyclictest2756034-21chrt09:35:023
256645199171,12cyclictest2697918-21turbostat08:50:003
256645199171,12cyclictest2685053-21taskset08:39:553
256645199170,12cyclictest2833385-21taskset10:35:003
256645199170,12cyclictest2588298-21chrt07:25:013
27722962160,7sleep22774228-21grep09:45:192
2566451991614,1cyclictest0-21swapper/308:05:153
2566451991613,1cyclictest0-21swapper/312:15:213
2566451991613,1cyclictest0-21swapper/310:10:183
2566451991613,1cyclictest0-21swapper/309:30:163
2566451991613,1cyclictest0-21swapper/309:10:223
2566451991613,1cyclictest0-21swapper/307:45:203
256645199161,12cyclictest2929940-21turbostat11:50:013
256645199161,12cyclictest2888385-21taskset11:15:203
256645199161,12cyclictest2877960-21taskset11:05:233
256645199161,12cyclictest2865597-21chrt11:00:013
256645199161,12cyclictest2820051-21taskset10:21:393
256645199161,12cyclictest2813597-21taskset10:16:333
256645199161,12cyclictest2788160-21turbostat10:00:003
256645199161,12cyclictest2742955-21turbostat09:25:003
256645199161,12cyclictest2677705-21taskset08:30:213
256645199161,12cyclictest2639827-21taskset08:02:443
256645199161,12cyclictest2607368-21taskset07:39:243
256645199161,12cyclictest2600689-21chrt07:31:583
256645199161,12cyclictest2581290-21taskset07:16:313
256645199161,11cyclictest2775613-21chrt09:50:123
256645199160,12cyclictest2667423-21taskset08:25:163
256645199160,12cyclictest2572568-21taskset07:10:263
26714872151,11sleep12671735-21grep08:25:231
256645199157,6cyclictest2936376-21sleep11:59:563
2566451991513,1cyclictest0-21swapper/311:10:223
2566451991513,0cyclictest0-21swapper/309:43:593
256645199151,12cyclictest2987826-21chrt12:31:543
256645199151,12cyclictest2955790-21taskset12:07:543
256645199151,12cyclictest2917005-21taskset11:39:213
256645199151,12cyclictest2903935-21taskset11:27:063
256645199151,12cyclictest2652740-21taskset08:13:543
256645199151,11cyclictest2993593-21taskset12:35:193
256645199151,11cyclictest2962049-21taskset12:10:303
256645199151,11cyclictest2949434-21taskset12:03:493
256645199151,11cyclictest2904418-21taskset11:30:113
256645199151,11cyclictest2897383-21chrt11:20:293
256645199151,11cyclictest2897383-21chrt11:20:293
256645199151,11cyclictest2858567-21taskset10:50:393
256645199151,11cyclictest2839887-21taskset10:40:093
256645199151,11cyclictest2820564-21taskset10:25:073
256645199151,11cyclictest2800751-21chrt10:06:353
256645199151,11cyclictest2775114-21taskset09:47:203
256645199151,11cyclictest2716189-21chrt09:00:193
256645199151,11cyclictest2704349-21sleep08:55:013
256645199150,12cyclictest2981005-21taskset12:25:213
256645199150,12cyclictest2973918-21taskset12:20:203
256645199150,12cyclictest2923302-21chrt11:42:253
256645199150,12cyclictest2832806-21taskset10:30:443
256645199150,12cyclictest2792553-21taskset10:00:183
256645199150,12cyclictest2704569-21chrt08:55:063
256645199150,11cyclictest2620931-21chrt07:50:023
29246752140,5sleep00-21swapper/011:45:200
256645199144,7cyclictest26910382sleep308:40:243
256645199141,11cyclictest2665359-21taskset08:20:273
256645199141,11cyclictest2659095-21chrt08:17:273
256645199141,11cyclictest2633422-21taskset07:58:153
256645199140,12cyclictest2865105-21chrt10:57:053
256645199140,11cyclictest2587723-21taskset07:20:453
307598120,7rtkit-daemon3256-21sendmail-mta10:56:581
307598120,3rtkit-daemon2621136-21diskstats07:50:141
29045992121,8sleep12904625-21fschecks_count11:30:141
28736942120,2sleep02873730-21kthreadcore11:05:160
28194722120,8sleep12819519-21ps10:20:251
26338732121,7sleep02634016-21df08:00:140
307598110,6rtkit-daemon468-21systemd-logind08:46:441
307598110,6rtkit-daemon433-21rpcbind11:04:551
29695922111,7sleep02970527-21irqstats12:20:180
28541712110,8sleep02855902-21cut10:50:170
27530252110,1sleep00-21swapper/009:30:170
26488462111,3sleep02650826-21kthreadcore08:10:190
307598100,6rtkit-daemon714-21snmpd09:10:461
307598100,6rtkit-daemon493-21gmain09:44:491
307598100,6rtkit-daemon3256-21sendmail-mta10:16:131
307598100,6rtkit-daemon3256-21sendmail-mta08:16:481
307598100,6rtkit-daemon2561306-21irqrtprio07:05:191
307598100,5rtkit-daemon2918734-21irqstats11:40:161
307598100,5rtkit-daemon2711100-21apt-get09:00:121
29579062100,7sleep12959835-21cut12:10:171
28865802100,7sleep22888384-21tr11:15:202
28719182101,5sleep12871790-21apt-get11:05:011
28674052101,6sleep02869361-21kthreadcore11:00:190
28333992101,4sleep22833432-21apt-get10:35:132
27433762100,7sleep02743472-21fschecks_time09:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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