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2025-12-30 - 04:37
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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 Tue Dec 30, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19061998985,869cyclictest0-21swapper/121:48:031
1906099477395,66cyclictest0-21swapper/019:12:130
1906199467384,47cyclictest0-21swapper/119:12:131
19060999869,22cyclictest0-21swapper/023:46:170
1861228437,36sleep10-21swapper/119:05:521
1906099774,67cyclictest0-21swapper/019:36:320
19060997531,38cyclictest88850irq/46-eth0-tx-22:25:290
19060997531,38cyclictest88850irq/46-eth0-tx-22:25:290
294732740,3chrt29475-21unixbench-2d21:05:280
1906099743,65cyclictest30936-21runrttasks23:56:110
19060997319,48cyclictest88850irq/46-eth0-tx-00:26:270
19060997313,54cyclictest7971-21ssh00:13:090
228699720,4rtkit-daemon2285-21rtkit-daemon21:39:261
1906099723,62cyclictest638-21munin-node23:05:140
1906099722,55cyclictest27818-21munin-node23:50:280
1906099712,63cyclictest29506-21ssh22:59:110
1906099712,54cyclictest27303-21latency_hist22:00:010
1906099703,39cyclictest19632-21ssh21:45:220
1906099702,62cyclictest12880-21munin-node21:35:150
1906099694,59cyclictest27391-21timerandwakeup19:30:250
1906099693,49cyclictest2390-21ssh00:03:490
1906099693,40cyclictest5521-21ssh23:13:010
19060996925,39cyclictest88850irq/46-eth0-tx-00:35:250
1906099692,44cyclictest13206-21runrttasks00:21:240
1906099692,40cyclictest23477-21ssh22:48:300
228699680,3rtkit-daemon2285-21rtkit-daemon19:07:170
1906099683,59cyclictest8264-21ssh22:21:110
1906099683,39cyclictest13948-21ssh22:30:500
19060996825,28cyclictest88850irq/46-eth0-tx-23:43:210
1906099682,60cyclictest28243-21munin-node22:00:210
1906099682,60cyclictest11896-21ssh23:24:550
1906099682,59cyclictest20231-21ssh22:42:220
1906099682,56cyclictest32168-21ssh23:03:230
1906099674,57cyclictest26266-21latency_hist19:30:010
1906099674,48cyclictest0-21swapper/019:15:320
19060996732,29cyclictest88850irq/46-eth0-tx-23:15:310
1906099673,44cyclictest2401-21runrttasks22:10:530
1906099673,39cyclictest10260-21ssh00:16:170
1906099672,43cyclictest27188-21latency21:00:220
19060996718,43cyclictest88850irq/46-eth0-tx-21:17:510
19060996717,35cyclictest88850irq/46-eth0-tx-00:05:290
19060996711,50cyclictest0-21swapper/000:30:590
1906099666,54cyclictest0-21swapper/022:35:160
1906099664,47cyclictest24488-21df_abs22:50:150
19060996630,31cyclictest88850irq/46-eth0-tx-20:40:170
1906099663,38cyclictest32747-21ssh22:08:510
19060996627,32cyclictest8250irq/14-pata_sch23:40:010
1906099662,58cyclictest24461-21latency_hist19:25:010
1906099662,57cyclictest31832-21munin-node19:45:160
1906099662,57cyclictest21652-21sort20:45:180
1906099662,44cyclictest5263-21ssh22:15:500
19060996618,34cyclictest88850irq/46-eth0-tx-23:30:080
1906099653,37cyclictest10328-21ssh21:30:170
1906099652,57cyclictest9297-21ssh21:29:000
1906099652,57cyclictest9297-21ssh21:29:000
1906099652,57cyclictest31254-21munin-node21:10:250
1906099652,45cyclictest5541-21ssh21:21:540
1906099646,52cyclictest0-21swapper/020:05:230
1906099643,57cyclictest22783-21cat21:50:250
1906099642,55cyclictest10212-21latency_hist20:15:010
1906099642,37cyclictest14819-21latency_hist23:30:020
1906099642,36cyclictest16305-21irqstats20:30:160
1906099636,51cyclictest0-21swapper/020:36:330
1906099634,53cyclictest0-21swapper/020:58:340
1906099625,51cyclictest0-21swapper/019:41:020
19060996243,14cyclictest0-21swapper/019:55:190
19060996226,31cyclictest88850irq/46-eth0-tx-21:40:150
1906099616,49cyclictest0-21swapper/020:50:140
1906099612,53cyclictest13818-21latency_hist20:25:000
1906099612,52cyclictest1363-21aten_r1power_fr19:50:120
19060996119,37cyclictest0-21swapper/020:00:140
228699600,5rtkit-daemon2285-21rtkit-daemon22:21:061
1906099602,35cyclictest15619-21latency_hist20:30:010
228699590,5rtkit-daemon2285-21rtkit-daemon00:20:391
228699590,4rtkit-daemon2285-21rtkit-daemon22:46:521
228699590,4rtkit-daemon2285-21rtkit-daemon21:26:361
228699590,4rtkit-daemon2285-21rtkit-daemon21:26:351
1906099593,50cyclictest11107-21ntp_offset20:15:230
228699580,5rtkit-daemon2285-21rtkit-daemon22:44:071
228699580,4rtkit-daemon2285-21rtkit-daemon23:24:531
228699580,4rtkit-daemon2285-21rtkit-daemon21:52:471
228699570,4rtkit-daemon2285-21rtkit-daemon23:27:081
228699570,4rtkit-daemon2285-21rtkit-daemon22:08:111
19061995738,14cyclictest24454-21munin-node23:45:211
228699560,4rtkit-daemon2285-21rtkit-daemon23:34:031
19061995537,14cyclictest18810-21sendmail_mailst23:35:251
19061995432,17cyclictest8250irq/14-pata_sch00:05:011
228699530,5rtkit-daemon2285-21rtkit-daemon21:55:161
228699530,5rtkit-daemon2285-21rtkit-daemon20:25:201
19061995339,9cyclictest29707-21cpuspeed23:55:161
19061995339,9cyclictest1189-21snmpd21:18:181
19061995334,14cyclictest32419-21ssh23:04:101
19061995318,29cyclictest0-21swapper/100:30:221
228699520,5rtkit-daemon2285-21rtkit-daemon21:05:211
228699520,5rtkit-daemon2285-21rtkit-daemon20:10:191
19061995238,9cyclictest17081-21ksmtuned22:36:351
19061995237,10cyclictest20790-21munin-node23:40:291
19061995233,14cyclictest1568-21runrttasks21:13:041
228699510,6rtkit-daemon2285-21rtkit-daemon21:31:311
228699510,5rtkit-daemon2285-21rtkit-daemon22:00:211
228699510,5rtkit-daemon2285-21rtkit-daemon21:25:001
228699510,5rtkit-daemon2285-21rtkit-daemon20:15:191
228699510,4rtkit-daemon2285-21rtkit-daemon00:05:491
19061995137,9cyclictest5675-21awk20:00:211
19061995137,10cyclictest9042-21awk23:20:001
228699500,5rtkit-daemon2285-21rtkit-daemon22:25:271
228699500,5rtkit-daemon2285-21rtkit-daemon22:25:271
228699500,5rtkit-daemon2285-21rtkit-daemon20:20:141
19061995036,9cyclictest20969-21grep00:35:221
19061995033,11cyclictest1746-21hwlatdetect19:50:161
19061995027,18cyclictest0-21swapper/123:05:101
228699490,5rtkit-daemon2285-21rtkit-daemon22:16:511
228699490,5rtkit-daemon2285-21rtkit-daemon22:10:161
228699490,5rtkit-daemon2285-21rtkit-daemon20:45:251
228699490,5rtkit-daemon2285-21rtkit-daemon20:30:141
228699490,5rtkit-daemon2285-21rtkit-daemon00:10:191
228699490,4rtkit-daemon2285-21rtkit-daemon21:40:171
228699490,4rtkit-daemon2285-21rtkit-daemon00:15:141
1906199495,38cyclictest0-21swapper/120:35:241
19061994935,9cyclictest6284-21cat23:15:011
228699480,5rtkit-daemon2285-21rtkit-daemon20:55:261
228699480,5rtkit-daemon2285-21rtkit-daemon00:29:441
228699480,4rtkit-daemon2285-21rtkit-daemon22:55:221
228699480,4rtkit-daemon2285-21rtkit-daemon20:40:191
19061994834,9cyclictest7851-21unixbench_multi20:05:261
19061994834,9cyclictest31283-21ksmtuned19:41:091
19061994824,18cyclictest0-21swapper/122:50:351
19061994812,30cyclictest0-21swapper/119:25:191
19061994810,32cyclictest0-21swapper/119:55:181
228699470,5rtkit-daemon2285-21rtkit-daemon21:01:001
228699470,4rtkit-daemon2285-21rtkit-daemon22:30:171
1906199479,33cyclictest0-21swapper/119:45:201
1906199479,33cyclictest0-21swapper/119:30:281
19061994733,9cyclictest28590-21gltestperf19:35:171
19061994733,9cyclictest21071-21head19:15:141
228699460,4rtkit-daemon2285-21rtkit-daemon20:52:491
19061994625,16cyclictest0-21swapper/123:51:201
19061994420,17cyclictest0-21swapper/119:20:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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