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2025-12-28 - 07:38
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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
Characteristics of the 100 highest latencies:
System rackcslot4.osadl.org (updated Sun Dec 28, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24788962254180,58sleep00-21swapper/019:08:190
24790062253214,26sleep10-21swapper/119:09:321
179699560,6rtkit-daemon1795-21rtkit-daemon23:29:091
2479136995512,12cyclictest2670266-21unin-run00:15:000
2479136995411,11cyclictest2612438-21latency_hist23:00:000
2479136995316,13cyclictest2628311-40apt-check23:20:160
2479136995311,8cyclictest2658828-21munin-run23:59:590
179699530,1rtkit-daemon1795-21rtkit-daemon21:46:291
2479136995213,9cyclictest1-21systemd21:50:000
2479136995213,21cyclictest2632347-21apt-get23:25:150
26581492510,6sleep10-21swapper/123:58:331
2479136995111,12cyclictest2604862-21sh22:49:590
2479136995110,11cyclictest2674040-21/usr/sbin/munin00:20:010
26439272500,4sleep12643916-21sort23:40:151
2479136995010,11cyclictest2641056-21grep23:35:230
179699500,4rtkit-daemon1795-21rtkit-daemon22:07:080
2479136994913,9cyclictest2527130-21munin-run21:10:000
2479136994913,9cyclictest2527130-21munin-run21:10:000
2479136994912,9cyclictest2527122-21diskmemload23:40:230
2479136994910,11cyclictest2586261-21apt-get22:25:140
179699490,3rtkit-daemon1795-21rtkit-daemon22:14:380
179699490,3rtkit-daemon1795-21rtkit-daemon00:37:411
2479136994813,13cyclictest2480108-21/usr/sbin/munin19:10:240
2479136994813,10cyclictest2564219-21/usr/sbin/munin21:55:250
2479136994811,13cyclictest2660371-21cat00:00:260
2479136994811,13cyclictest2605951-21ntpq22:50:230
2479136994811,13cyclictest2605951-21ntpq22:50:230
2479136994811,11cyclictest2492361-21diskstats19:40:170
179699480,4rtkit-daemon1795-21rtkit-daemon23:38:521
179699480,4rtkit-daemon1795-21rtkit-daemon20:35:321
179699480,4rtkit-daemon1795-21rtkit-daemon20:28:450
2479136994717,10cyclictest2527122-21diskmemload22:39:120
2479136994715,9cyclictest2617630-21/usr/sbin/munin23:05:240
2479136994713,12cyclictest2531693-40apt-check21:15:150
2479136994711,9cyclictest2485568-21/usr/sbin/munin19:25:000
2479136994614,11cyclictest2520268-21sh20:50:210
2479136994612,9cyclictest2621526-21mailstats23:10:210
2479136994612,13cyclictest2682938-21gzip00:30:230
2479136994612,11cyclictest2652478-21sensors23:50:230
2479136994611,9cyclictest1-21systemd21:05:010
2479136994611,12cyclictest2482858-21grep19:15:260
2479136994611,11cyclictest2675318-21mailstats00:20:230
2479136994611,11cyclictest2591107-21grep22:30:230
2479136994610,12cyclictest2552524-21expr21:40:230
2479136994515,11cyclictest2547350-21cron21:35:000
2479136994514,13cyclictest2625043-21sh23:15:220
2479136994514,11cyclictest2578456-21seq22:15:090
2479136994513,13cyclictest2612902-21ssh23:00:140
2479136994513,11cyclictest2583229-21needreboot22:20:240
2479136994513,10cyclictest2639682-21ssh23:34:520
2479136994511,9cyclictest1-21systemd20:55:240
2479136994510,12cyclictest2647945-21fschecks_count23:45:200
2479136994510,12cyclictest2511962-21fschecks_count20:30:200
2479136994510,10cyclictest2678101-21apt-get00:25:120
2479136994420,12cyclictest2540246-21irqstats21:25:190
2479136994413,9cyclictest2561588-21ssh21:52:160
2479136994413,13cyclictest2663147-21ssh00:05:180
2479136994413,13cyclictest2491655-21latency_hist19:40:010
2479136994413,12cyclictest2686855-21find00:35:270
2479136994413,12cyclictest2527435-21taskset21:10:130
2479136994411,14cyclictest2515604-21/usr/sbin/munin20:40:110
2479136994411,13cyclictest2550405-21chrt21:38:210
2479136994411,12cyclictest2514048-21cut20:35:180
2479136994410,9cyclictest2507648-21ls20:20:020
2479136994325,11cyclictest2507783-21apt-get20:20:120
2479136994311,16cyclictest2486524-21ntpq19:25:210
2479136994311,10cyclictest2537210-21ssh21:20:270
2479136994311,10cyclictest2488948-21awk19:30:250
2479136994223,11cyclictest2503863-21apt-get20:10:150
2479136994223,11cyclictest2494098-21apt-get19:45:170
2479136994214,11cyclictest2599220-21ssh22:40:590
2479136994213,10cyclictest2501977-21cpuspeed20:05:170
2479136994211,9cyclictest2519408-21sed20:50:020
2479136994211,14cyclictest2500434-21if_enp2s020:00:220
2479136994211,13cyclictest2569256-21sh22:02:250
2479136994211,11cyclictest2497993-21apt-get19:55:110
2479136993911,11cyclictest2496562-21kernelversion19:50:190
179699390,7rtkit-daemon2669275-21ssh00:12:581
26282832380,4sleep1251rcuc/123:20:011
179699370,3rtkit-daemon0-21swapper/123:00:041
179699370,3rtkit-daemon0-21swapper/121:07:551
179699370,3rtkit-daemon0-21swapper/121:07:551
179699360,3rtkit-daemon0-21swapper/121:16:291
179699360,3rtkit-daemon0-21swapper/119:28:411
179699360,3rtkit-daemon0-21swapper/022:31:091
179699350,4rtkit-daemon1795-21rtkit-daemon21:33:101
179699350,3rtkit-daemon0-21swapper/020:27:411
179699340,4rtkit-daemon1795-21rtkit-daemon22:59:511
179699340,4rtkit-daemon1795-21rtkit-daemon00:28:081
179699340,3rtkit-daemon1795-21rtkit-daemon23:12:581
179699340,3rtkit-daemon0-21swapper/120:51:111
179699340,3rtkit-daemon0-21swapper/022:19:141
179699340,3rtkit-daemon0-21swapper/020:15:201
179699330,6rtkit-daemon0-21swapper/020:24:161
179699310,4rtkit-daemon1795-21rtkit-daemon23:08:291
24915092300,5chrt2491474-21python319:40:021
2479137993012,12cyclictest2559336-21apt-get21:50:161
179699300,3rtkit-daemon1795-21rtkit-daemon19:15:561
179699300,3rtkit-daemon0-21swapper/019:54:171
179699300,3rtkit-daemon0-21swapper/019:43:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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