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2025-12-24 - 16:37
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot2.osadl.org (updated Wed Dec 24, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27688602227198,19sleep00-21swapper/007:09:290
27686242221192,19sleep10-21swapper/107:06:281
27686002221169,18sleep30-21swapper/307:06:103
27687692220190,20sleep20-21swapper/207:08:192
2769083998630,15cyclictest2799754-21chrome07:45:012
276908699830,83cyclictest2854561-21kworker/u8:3+efi_rts_wq09:18:243
2769086997029,40cyclictest2851690-21snmp_ryswitch.c08:45:023
2769086995955,3cyclictest2721308-21kworker/u8:2+flush-179:007:35:053
2769076995850,6cyclictest2829857-21/usr/share/muni08:20:120
276907699569,46cyclictest2868793-21kworker/u8:2+efi_rts_wq09:18:220
2769076995047,2cyclictest3009739-21chrome11:45:010
2769086994935,10cyclictest2765462-21kworker/u8:3+flush-179:007:10:233
278168624844,2sleep22772864-21kworker/u8:0+events_unbound07:20:292
2769086994845,2cyclictest3014709-21kworker/u8:0+events_unbound12:25:113
2769076994843,3cyclictest2772864-21kworker/u8:0+flush-179:007:20:150
2769086994736,10cyclictest2912866-21kworker/u8:2+flush-179:009:55:283
2769083994744,1cyclictest2938529-31munin-graph10:20:492
2769086994642,3cyclictest2960293-21kworker/u8:1+flush-179:010:55:123
2769083994640,4cyclictest2956355-21latency_hist10:45:012
2769079994635,10cyclictest2829857-21/usr/share/muni08:20:041
2769079994625,20cyclictest1318-21snmpd09:20:251
2769083994536,8cyclictest2790563-21kworker/2:1+pm07:35:042
2769076994431,12cyclictest2631244-1kworker/0:0H+kblockd09:56:010
2769086994340,2cyclictest2978564-21kworker/u8:0+events_unbound11:10:143
2769086994340,2cyclictest2808161-21kworker/u8:3+flush-179:008:10:103
2769086994339,3cyclictest2808161-21kworker/u8:3+events_unbound08:20:013
2769083994336,6cyclictest2790563-21kworker/2:1+pm08:25:002
2769083994336,5cyclictest2922742-21ntpq10:05:082
2769083994331,1cyclictest2960955-21kworker/2:2+pm11:52:132
2769076994341,1cyclictest2631244-1kworker/0:0H+kblockd11:17:570
2769086994238,3cyclictest2826568-21apt-get08:15:073
2769086994235,5cyclictest2976921-21ntpq11:05:153
2769083994237,3cyclictest2898783-31munin-html09:35:302
2769083994227,14cyclictest2790563-21kworker/2:1+pm08:05:012
2769076994236,4cyclictest2908667-21/usr/share/muni09:50:150
2769086994139,1cyclictest2799728-21ThreadPoolForeg07:45:013
2769086994138,2cyclictest3006968-21kworker/u8:2+events_unbound11:40:253
2769086994128,12cyclictest2860067-21kworker/u8:1+flush-179:008:55:243
2769079994125,9cyclictest2799486-21munin-update07:45:011
2769079994110,31cyclictest2868793-21kworker/u8:2+efi_rts_wq09:18:231
2769086994037,2cyclictest3014709-21kworker/u8:0+flush-179:012:20:143
2769086994037,2cyclictest2755481-21kworker/3:0+pm09:10:003
2769086994036,3cyclictest2854561-21kworker/u8:3+events_unbound09:00:243
2769086994036,3cyclictest2721308-21kworker/u8:2+flush-179:007:15:103
2769083994038,1cyclictest2960955-21kworker/2:2+pm12:15:152
2769083994038,1cyclictest2881879-21kworker/2:0+pm09:55:122
2769083994038,1cyclictest2790563-21kworker/2:1+pm08:15:042
2769083994037,2cyclictest2790563-21kworker/2:1+pm07:50:402
2769083994037,1cyclictest2960955-21kworker/2:2+pm12:31:222
2769083994037,1cyclictest2881879-21kworker/2:0+pm09:25:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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