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2026-01-05 - 15:18
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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 rackcslot0.osadl.org (updated Mon Jan 05, 2026 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2619721790,5sleep4267599cyclictest22:35:0010
962021470,7sleep14268899cyclictest23:27:516
21702129109,13sleep110-21swapper/1119:09:443
21992125101,19sleep30-21swapper/319:10:089
2296521230,1sleep150-21swapper/1500:30:447
1146621210,1sleep1231rcuc/123:01:581
1146621210,1sleep1231rcuc/123:01:581
32403211790,21sleep70-21swapper/719:05:3913
2194211390,18sleep150-21swapper/1519:10:047
2003211392,14sleep00-21swapper/019:08:120
2218121050,1sleep60-21swapper/621:14:4712
1835210579,20sleep140-21swapper/1419:06:026
899021020,0sleep40-21swapper/423:50:2510
2667821020,2sleep90-21swapper/922:15:3315
1115721020,0sleep40-21swapper/422:01:0210
71221010,7sleep2267299cyclictest22:55:018
71221010,7sleep2267299cyclictest22:55:018
1830210182,12sleep90-21swapper/919:05:5715
2009210079,14sleep40-21swapper/419:08:1610
22842980,1sleep111051ktimersoftd/1122:55:103
22842980,1sleep111051ktimersoftd/1122:55:103
312622950,0sleep150-21swapper/1522:22:217
217129485,4sleep120-21swapper/1219:09:454
316132930,1sleep140-21swapper/1423:10:446
316132930,1sleep140-21swapper/1423:10:446
220982920,7sleep15268999cyclictest22:30:547
217829180,4sleep20-21swapper/219:09:518
101372910,1sleep20-21swapper/222:23:288
235952900,1sleep80-21swapper/822:05:3814
177452900,0sleep110-21swapper/1122:40:283
159432890,1sleep60-21swapper/600:17:2812
74692880,0sleep150-21swapper/1521:54:157
3207728878,4sleep50-21swapper/519:05:3711
208602880,1sleep11106-21ksoftirqd/1122:30:503
290112870,1sleep00-21swapper/022:41:210
221902870,1sleep21059-21systemd-logind23:48:318
221642870,0sleep90-21swapper/923:41:5715
189612870,0sleep60-21swapper/600:37:0012
85722860,1sleep120-21swapper/1200:06:204
196228664,4sleep130-21swapper/1319:07:375
103042860,5sleep14268899cyclictest22:00:566
56322850,1sleep1518308-36md125_resync00:16:177
266382850,2sleep50-21swapper/500:37:4711
6102840,5sleep8268099cyclictest21:28:2814
323052830,0sleep80-21swapper/823:39:4814
206528373,4sleep60-21swapper/619:09:0712
182928372,4sleep80-21swapper/819:05:5614
124892830,0sleep40-21swapper/400:10:2910
209228274,4sleep100-21swapper/1019:09:272
255632810,0sleep120-21swapper/1222:21:454
235862810,0sleep100-21swapper/1021:30:382
193128072,4sleep10-21swapper/119:07:091
172942790,1sleep117293-21sshd23:38:041
145092790,0sleep100-21swapper/1021:14:032
317172780,0sleep130-21swapper/1323:49:305
78362770,2sleep8268099cyclictest23:40:3614
135832720,5sleep10268299cyclictest22:20:392
153562700,0sleep00-21swapper/021:23:150
162332680,1sleep120-21swapper/1200:23:444
221802630,0sleep150-21swapper/1523:00:037
221802630,0sleep150-21swapper/1523:00:037
211732610,1sleep40-21swapper/400:37:1410
183192580,0sleep00-21swapper/021:58:330
84902570,0sleep40-21swapper/423:17:4810
323022570,2sleep6267799cyclictest00:28:2612
239832570,0sleep50-21swapper/523:29:1911
112902570,0sleep120-21swapper/1219:59:124
208442560,0sleep80-21swapper/800:34:0514
268799500,7cyclictest29491-21sshd21:15:275
2687994814,32cyclictest0-21swapper/1322:43:355
268799480,46cyclictest0-21swapper/1322:13:505
2681994842,4cyclictest517-21systemd-journal00:02:4615
149882480,6sleep7267899cyclictest00:30:0413
268799479,3cyclictest1170-21sshd22:38:475
2681994743,3cyclictest375-21md125_raid121:11:2415
2681994742,3cyclictest26987-21sshd00:15:2315
267599470,44cyclictest5228-21systemd-cgroups23:43:4010
2681994642,3cyclictest0-21swapper/900:38:4115
2681994639,5cyclictest31462-21sshd23:52:2715
267599460,43cyclictest375-21md125_raid122:20:5410
2687994515,28cyclictest1058-21NetworkManager21:11:525
2687994514,29cyclictest0-21swapper/1323:21:285
268799450,43cyclictest0-21swapper/1321:55:255
268799450,43cyclictest0-21swapper/1320:16:355
2681994541,3cyclictest0-21swapper/919:47:3515
2681994541,2cyclictest0-21swapper/921:19:5015
268799440,41cyclictest18148-21systemd-cgroups22:59:405
268799440,41cyclictest18148-21systemd-cgroups22:59:405
268799440,41cyclictest0-21swapper/1323:59:375
2681994440,2cyclictest0-21swapper/900:12:4115
2681994439,3cyclictest13656-21systemd00:06:5315
2681994438,4cyclictest1060-21avahi-daemon23:56:5215
2681994438,4cyclictest1060-21avahi-daemon23:50:1015
2681994437,5cyclictest9857-21systemd21:32:2715
27832430,1sleep32782-21sshd22:51:509
27832430,1sleep32782-21sshd22:51:509
2687994314,26cyclictest0-21swapper/1323:12:365
2687994314,26cyclictest0-21swapper/1323:12:365
2687994314,26cyclictest0-21swapper/1322:52:385
2687994314,26cyclictest0-21swapper/1322:52:385
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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