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2026-04-21 - 04:42
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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 376 highest latencies:
System rackcslot0.osadl.org (updated Tue Apr 21, 2026 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
588921740,6sleep11870799cyclictest21:41:363
77922121102,15sleep00-21swapper/019:08:450
77872120101,15sleep120-21swapper/1219:08:414
79082118104,10sleep60-21swapper/619:10:1112
1113021180,1sleep50-21swapper/500:25:1111
7793211592,18sleep10-21swapper/119:08:461
7856211489,21sleep100-21swapper/1019:09:272
159621140,8sleep5869999cyclictest00:32:2411
434821130,1sleep40-21swapper/422:09:0210
7783211295,12sleep80-21swapper/819:08:3714
8071211092,13sleep90-21swapper/919:11:5015
1444421090,1sleep110-21swapper/1121:35:273
7702210691,10sleep40-21swapper/419:07:2910
549821060,1sleep150-21swapper/1522:54:257
7047210494,4sleep130-21swapper/1319:07:225
1288621030,5sleep0869399cyclictest23:43:550
8049210073,22sleep50-21swapper/519:11:3011
153672990,1sleep141041-21dbus-daemon00:33:546
173142980,7sleep14130-21ksoftirqd/1422:48:316
11452970,0sleep90-21swapper/923:46:1215
94362960,4sleep5869999cyclictest22:33:5511
79042940,2sleep100-21swapper/1000:00:562
4062940,1sleep70-21swapper/700:00:0513
135742940,1sleep80-21swapper/821:12:0814
22212930,0sleep90-21swapper/921:23:3915
144122930,1sleep60-21swapper/621:56:1412
794829184,3sleep110-21swapper/1119:10:483
28772910,6sleep4869899cyclictest21:44:5810
127942910,4sleep1098-21ksoftirqd/1019:16:552
112442910,0sleep10-21swapper/122:37:361
803028981,4sleep30-21swapper/319:11:129
33052890,0sleep9881rcuc/900:23:5515
304722890,1sleep80-21swapper/822:36:2314
270412890,1sleep20-21swapper/220:12:088
108692890,0sleep00-21swapper/023:47:070
288712880,0sleep00-21swapper/022:22:040
57872860,7sleep10870699cyclictest21:45:202
162042860,0sleep30-21swapper/300:12:519
173022850,0sleep50-21swapper/500:08:2011
793528472,8sleep150-21swapper/1519:10:367
786028472,8sleep140-21swapper/1419:09:316
776428469,11sleep70-21swapper/719:08:2013
290252840,1sleep151371ktimersoftd/1523:20:547
290252840,1sleep151371ktimersoftd/1523:20:547
256772840,0sleep90-21swapper/900:38:3815
233672840,0sleep120-21swapper/1221:26:224
779428372,7sleep20-21swapper/219:08:478
320622830,5sleep4869899cyclictest21:17:0910
241812830,2sleep20-21swapper/222:38:578
32222820,1sleep00-21swapper/021:23:460
184072820,0sleep20-21swapper/222:31:288
62722800,0sleep100-21swapper/1000:03:522
36252790,0sleep150-21swapper/1521:17:207
245432790,0sleep20-21swapper/223:37:488
90372780,7sleep15871299cyclictest21:48:537
270022750,6sleep4869899cyclictest23:03:2010
270022750,6sleep4869899cyclictest23:03:2010
871199530,3cyclictest1270-21gdbus00:30:456
871199500,3cyclictest1270-21gdbus22:36:286
870699500,47cyclictest4806-21systemd23:14:572
870699500,47cyclictest4806-21systemd23:14:572
870699500,43cyclictest0-21swapper/1021:27:172
870699492,44cyclictest1325-21sh22:02:042
870699491,33cyclictest240350nfsd23:00:092
871199480,3cyclictest1058-21NetworkManager23:13:566
871199480,3cyclictest1058-21NetworkManager23:13:566
870699481,44cyclictest0-21swapper/1023:25:242
870699481,44cyclictest0-21swapper/1023:25:242
870699480,45cyclictest32136-21systemd00:35:552
870699480,41cyclictest1270-21gdbus21:55:262
870699480,37cyclictest3257-21systemd22:54:112
870699480,1cyclictest0-21swapper/1021:39:242
871199471,43cyclictest16968-21sshd23:02:146
871199471,43cyclictest16968-21sshd23:02:146
870699471,35cyclictest4726-21sshd23:49:492
870699470,37cyclictest517-21systemd-journal22:15:512
870699470,36cyclictest0-21swapper/1021:15:132
870699470,2cyclictest0-21swapper/1023:33:372
871199460,4cyclictest26149-21kill00:06:096
871199460,3cyclictest5296-21sshd23:29:006
871199460,3cyclictest11165-21cp23:36:336
870999460,44cyclictest0-21swapper/1221:45:384
870699462,41cyclictest517-21systemd-journal21:32:222
870699461,42cyclictest24255-21cp00:22:022
870699460,40cyclictest1-21systemd00:38:462
870699460,37cyclictest1-21systemd23:42:352
870699460,1cyclictest0-21swapper/1023:18:162
870699460,1cyclictest0-21swapper/1023:18:162
870699460,1cyclictest0-21swapper/1000:29:162
871199450,4cyclictest4577-21systemd23:01:086
871199450,42cyclictest26205-21sshd22:25:106
8709994512,8cyclictest12703-2110-uname23:57:444
870999450,42cyclictest0-21swapper/1200:30:064
870699450,38cyclictest1059-21systemd-logind22:10:362
870699450,38cyclictest0-21swapper/1022:43:262
870699450,1cyclictest0-21swapper/1023:56:082
870699450,1cyclictest0-21swapper/1022:40:202
871199449,33cyclictest1390-21sshd21:20:226
871199441,40cyclictest2399-21nfsd21:28:246
871199441,40cyclictest18610-21sshd22:21:046
871199440,3cyclictest1058-21NetworkManager23:54:296
871199440,20cyclictest0-21swapper/1422:44:526
870999440,41cyclictest7819-21systemd23:22:084
870999440,41cyclictest7819-21systemd23:22:084
870699442,33cyclictest0-21swapper/1021:20:192
870699441,40cyclictest23873-21systemd22:18:112
870699441,37cyclictest7858-21systemd21:48:462
870699441,37cyclictest177-21kswapd000:13:262
870699441,36cyclictest517-21systemd-journal00:10:032
870699440,36cyclictest0-21swapper/1023:29:592
870699440,32cyclictest0-21swapper/1023:10:172
870699440,32cyclictest0-21swapper/1023:10:172
870699440,2cyclictest0-21swapper/1022:50:002
870699440,1cyclictest0-21swapper/1021:57:402
871199431,40cyclictest1096-2110-uname23:07:396
871199431,40cyclictest1096-2110-uname23:07:396
871199431,39cyclictest2370-21snmpd21:49:496
871199430,4cyclictest0-21swapper/1422:52:126
871199430,40cyclictest9023-21sshd22:09:316
871199430,3cyclictest1270-21gdbus23:25:406
871199430,3cyclictest1270-21gdbus23:25:406
871199430,3cyclictest1041-21dbus-daemon23:17:406
871199430,3cyclictest1041-21dbus-daemon23:17:406
871199430,2cyclictest0-21swapper/1421:58:006
870699430,32cyclictest1057-21gdbus21:23:392
870699430,1cyclictest0-21swapper/1022:27:242
870699430,1cyclictest0-21swapper/1022:23:522
870699430,1cyclictest0-21swapper/1020:32:202
8711994210,29cyclictest2395-21sshd21:12:426
871199420,4cyclictest26330-21uname21:22:406
871199420,4cyclictest25149-21sshd00:15:376
870999428,4cyclictest1059-21systemd-logind22:16:024
8709994212,2cyclictest0-21swapper/1223:20:474
8709994212,2cyclictest0-21swapper/1223:20:474
870699421,35cyclictest21478-21sshd23:37:252
870699420,40cyclictest22030-21sh23:02:422
870699420,40cyclictest22030-21sh23:02:422
870699420,39cyclictest27134-21df_abs20:12:092
870699420,2cyclictest0-21swapper/1020:02:202
870499423,3cyclictest30813-21systemd21:57:5314
871199418,30cyclictest1041-21dbus-daemon00:25:246
871199411,4cyclictest19986-2110-uname00:37:586
871199410,3cyclictest1057-21gdbus22:29:526
871199410,2cyclictest0-21swapper/1400:17:136
870699410,38cyclictest30276-21sshd22:32:282
870699410,2cyclictest0-21swapper/1021:03:322
870699410,2cyclictest0-21swapper/1020:19:402
870699410,2cyclictest0-21swapper/1019:30:562
870699410,1cyclictest0-21swapper/1000:21:322
222012410,1sleep120-21swapper/1222:31:544
871199407,30cyclictest1270-21gdbus21:33:146
871199407,30cyclictest1041-21dbus-daemon23:39:176
871199405,13cyclictest0-21swapper/1422:04:196
871199401,4cyclictest2395-21sshd23:47:096
871199400,38cyclictest9286-21sshd00:11:466
871199400,2cyclictest0-21swapper/1423:57:256
870999409,3cyclictest1-21systemd21:38:184
870999408,3cyclictest1041-21dbus-daemon22:39:534
8709994012,25cyclictest6427-21sshd23:01:214
870999400,38cyclictest0-21swapper/1223:28:364
870699400,37cyclictest6560-21fschecks_count19:47:092
870699400,37cyclictest1536-21postgres19:38:362
870699400,1cyclictest0-21swapper/1021:07:522
870699400,1cyclictest0-21swapper/1019:56:562
870699400,1cyclictest0-21swapper/1019:52:202
870699400,1cyclictest0-21swapper/1019:32:122
870499400,18cyclictest0-21swapper/822:27:0914
869699400,14cyclictest18502-21systemd22:07:099
23172400,1sleep10-21swapper/123:46:201
219942400,1sleep50-21swapper/523:34:0611
871199391,3cyclictest8209-21systemd-cgroups22:12:416
8711993910,27cyclictest0-21swapper/1420:42:066
8711993910,27cyclictest0-21swapper/1420:42:066
871199390,3cyclictest6491-21sshd22:40:366
871199390,36cyclictest17899-21sshd21:53:006
870999399,3cyclictest424-21sshd22:01:584
870999399,3cyclictest12080-2110-uname21:59:294
870999398,4cyclictest1041-21dbus-daemon00:32:074
870999390,13cyclictest31771-21sshd21:17:074
870699390,36cyclictest2403-21nfsd20:22:072
870699390,1cyclictest0-21swapper/1019:42:042
870699390,1cyclictest0-21swapper/1019:16:562
869699391,8cyclictest0-21swapper/320:12:069
8696993912,3cyclictest0-21swapper/322:38:579
8696993911,4cyclictest5475-2110-uname00:29:169
871199386,10cyclictest14809-21systemd21:46:216
871199385,3cyclictest4188-21sh23:42:526
871199382,6cyclictest0-21swapper/1421:37:076
870999388,3cyclictest1928-2110-uname00:17:134
870999388,3cyclictest1-21systemd21:15:554
870999387,3cyclictest1041-21dbus-daemon22:51:574
870999386,5cyclictest8589-21sshd00:24:464
870999380,3cyclictest12829-21sshd22:09:564
870999380,2cyclictest22050irq/30-ahci[00021:29:014
870999380,13cyclictest0-21swapper/1221:34:154
870999380,11cyclictest0-21swapper/1222:21:124
870699380,35cyclictest22094-21/usr/sbin/munin20:07:112
870699380,35cyclictest19125-21cstates20:42:072
870699380,35cyclictest19125-21cstates20:42:072
870699380,1cyclictest0-21swapper/1020:47:202
870699380,1cyclictest0-21swapper/1020:47:202
8696993811,4cyclictest12616-21run-parts22:55:129
871199371,2cyclictest0-21swapper/1419:37:176
870999379,3cyclictest1059-21systemd-logind23:56:084
870999379,3cyclictest1041-21dbus-daemon22:32:274
870999378,4cyclictest27756-21run-parts21:54:014
870999378,3cyclictest145-21kauditd23:44:024
870999378,3cyclictest1041-21dbus-daemon00:10:284
8709993711,2cyclictest22050irq/30-ahci[00023:09:254
8709993711,2cyclictest22050irq/30-ahci[00023:09:254
8709993710,25cyclictest1270-21gdbus23:12:294
8709993710,25cyclictest1270-21gdbus23:12:294
870699370,34cyclictest16782-21taskset20:37:242
870699370,34cyclictest16782-21taskset20:37:242
870699370,2cyclictest0-21swapper/1020:57:122
870699370,2cyclictest0-21swapper/1020:57:122
870699370,2cyclictest0-21swapper/1019:22:162
870699370,1cyclictest0-21swapper/1020:52:082
870699370,1cyclictest0-21swapper/1020:52:082
870099370,2cyclictest0-21swapper/621:07:0712
8696993711,4cyclictest1041-21dbus-daemon21:12:109
314782370,0sleep20-21swapper/223:21:138
314782370,0sleep20-21swapper/223:21:138
870999369,4cyclictest1041-21dbus-daemon00:37:244
870999368,4cyclictest27413-2110-uname21:47:254
870999368,3cyclictest1041-21dbus-daemon00:02:144
870999367,3cyclictest1041-21dbus-daemon23:05:044
870999367,3cyclictest1041-21dbus-daemon23:05:044
8709993610,4cyclictest21441-2110-uname22:49:034
870999360,33cyclictest0-21swapper/1223:32:104
870999360,11cyclictest1-21systemd22:43:144
8704993611,4cyclictest23949-21sshd22:59:4114
143212360,2sleep558-21ksoftirqd/500:01:3911
871199351,3cyclictest0-21swapper/1420:02:116
871199351,3cyclictest0-21swapper/1419:42:106
871199351,2cyclictest0-21swapper/1420:41:556
871199351,2cyclictest0-21swapper/1420:41:556
870699350,1cyclictest0-21swapper/1020:27:082
870499351,15cyclictest22353-21/usr/sbin/munin21:47:1514
869699350,15cyclictest6955-21sshd22:51:159
869699350,13cyclictest18275-21sshd23:41:019
229422350,6sleep6870099cyclictest22:07:2812
871199341,3cyclictest24164-21nfsd420:07:176
871199341,3cyclictest0-21swapper/1420:32:136
870999340,17cyclictest0-21swapper/1223:41:134
870999340,12cyclictest16225-21systemd23:51:034
869699341,5cyclictest31777-21sshd21:20:119
8696993412,3cyclictest18249-21run-parts22:24:169
8696993410,4cyclictest22634-2110-uname23:23:419
8696993410,4cyclictest22634-2110-uname23:23:419
871199336,2cyclictest0-21swapper/1419:52:176
871199333,3cyclictest14447-21fschecks_time19:17:096
871199331,3cyclictest9634-21cpuspeed_turbos19:12:086
869699339,4cyclictest11257-21systemd23:47:089
869699339,3cyclictest12073-21sshd21:49:149
124362330,7sleep13871099cyclictest23:26:295
124362330,7sleep13871099cyclictest23:26:295
871199324,3cyclictest2811-21cpuspeed21:02:076
871199324,3cyclictest27086-21latency19:32:136
871199321,3cyclictest0-21swapper/1419:27:116
871199321,2cyclictest0-21swapper/1421:07:156
870999328,3cyclictest15133-21sshd22:23:534
869699329,4cyclictest27684-21run-parts21:33:269
261692320,7sleep13871099cyclictest21:57:255
138872320,1sleep40-21swapper/423:22:3510
138872320,1sleep40-21swapper/423:22:3510
122962320,2sleep90-21swapper/900:33:3415
871199314,3cyclictest24327-21missed_timers20:47:156
871199314,3cyclictest24327-21missed_timers20:47:156
871199311,2cyclictest0-21swapper/1420:17:116
871199310,5cyclictest14866-21cut19:57:106
870999318,3cyclictest1041-21dbus-daemon00:12:094
869399313,10cyclictest0-21swapper/023:31:270
55432310,1sleep60-21swapper/623:04:4312
55432310,1sleep60-21swapper/623:04:4312
27002310,5sleep2869599cyclictest21:54:498
143302310,1sleep70-21swapper/723:22:3813
143302310,1sleep70-21swapper/723:22:3813
871199304,2cyclictest97750irq/41-eth0-TxR20:52:086
871199304,2cyclictest97750irq/41-eth0-TxR20:52:086
871199301,5cyclictest2041-21/usr/sbin/munin20:22:086
871199301,2cyclictest0-21swapper/1420:27:076
869699309,3cyclictest32151-21packagekitd21:56:579
8696993011,3cyclictest25574-21systemd-cgroups23:20:279
8696993011,3cyclictest25574-21systemd-cgroups23:20:279
8696993010,4cyclictest13165-21systemd21:25:029
53972300,1sleep50-21swapper/500:17:4311
125982300,1sleep60-21swapper/621:28:4112
114892300,2sleep40-21swapper/421:59:2510
100702300,27sleep60-21swapper/623:32:4812
870999295,5cyclictest7036-21cpuspeed_turbos21:07:084
8696992911,3cyclictest2574-21systemd22:43:259
278432290,25sleep827978-21sshd22:46:1814
170292290,25sleep60-21swapper/622:38:1412
871199283,3cyclictest307572chrt20:56:596
871199283,3cyclictest307572chrt20:56:596
871199281,3cyclictest0-21swapper/1419:26:556
871199281,2cyclictest0-21swapper/1419:47:096
8696992810,3cyclictest22507-21run-parts22:35:299
70432280,25sleep50-21swapper/522:09:2011
306662280,3sleep997550irq/39-eth0-TxR22:19:0115
258092280,1sleep60-21swapper/623:20:3012
258092280,1sleep60-21swapper/623:20:3012
199782280,1sleep2321ktimersoftd/221:25:568
199672280,25sleep130-21swapper/1323:44:415
871099273,3cyclictest17843-21cups-browsed00:05:555
871099270,3cyclictest6094-21sshd00:29:225
869699270,4cyclictest13518-21uname22:13:209
44052270,2sleep130-21swapper/1321:14:225
315892270,0sleep60-21swapper/622:15:2912
308102270,3sleep030919-21systemd22:15:240
289482270,1sleep130-21swapper/1322:36:125
224472270,1sleep110-21swapper/1123:16:503
224472270,1sleep110-21swapper/1123:16:503
213172270,0sleep90-21swapper/922:56:1115
185112270,1sleep50-21swapper/523:12:5911
185112270,1sleep50-21swapper/523:12:5911
179772270,0sleep110-21swapper/1123:33:403
160062270,1sleep70-21swapper/722:13:3813
98112260,23sleep130-21swapper/1321:34:585
869399260,19cyclictest0-21swapper/023:12:590
869399260,19cyclictest0-21swapper/023:12:590
46712260,23sleep150-21swapper/1522:02:177
281972260,1sleep628185-21sshd23:42:0812
267982260,2sleep130-21swapper/1322:25:155
267162260,3sleep5571ktimersoftd/500:31:5211
245152260,3sleep124658-21systemd22:45:541
197702260,0sleep150-21swapper/1521:56:557
871199250,3cyclictest27826-21cat20:12:146
870999251,22cyclictest0-21swapper/1219:32:094
869399258,10cyclictest10-21ksoftirqd/023:38:110
53742250,2sleep10-21swapper/121:02:241
45662251,3sleep154675-21sshd23:08:047
45662251,3sleep154675-21sshd23:08:047
26322250,3sleep2517-21systemd-journal00:23:498
244822250,1sleep80-21swapper/820:47:1614
244822250,1sleep80-21swapper/820:47:1614
231182250,21sleep423257-21sshd22:04:1410
221552250,1sleep10-21swapper/123:41:311
215372250,22sleep150-21swapper/1500:08:477
183642250,20sleep60-21swapper/621:18:4812
179892250,0sleep130-21swapper/1323:09:385
179892250,0sleep130-21swapper/1323:09:385
100842250,1sleep70-21swapper/723:08:4513
100842250,1sleep70-21swapper/723:08:4513
871099241,2cyclictest0-21swapper/1320:52:055
871099241,2cyclictest0-21swapper/1320:52:055
870499241,3cyclictest0-21swapper/823:12:2914
870499241,3cyclictest0-21swapper/823:12:2914
870499240,3cyclictest0-21swapper/800:00:5814
870199243,2cyclictest1059-21systemd-logind23:45:3813
8694992417,5cyclictest241ktimersoftd/122:58:551
869499241,20cyclictest0-21swapper/100:27:071
869399247,10cyclictest10-21ksoftirqd/000:36:040
869399246,10cyclictest0-21swapper/021:42:470
869399245,12cyclictest10-21ksoftirqd/023:58:350
869399244,12cyclictest10-21ksoftirqd/000:41:350
37202240,1sleep151371ktimersoftd/1500:32:347
33532240,1sleep10-21swapper/121:20:341
305692240,20sleep60-21swapper/623:07:2312
305692240,20sleep60-21swapper/623:07:2312
298462240,20sleep20-21swapper/222:25:368
277842240,1sleep80-21swapper/800:38:5414
239742240,1sleep50-21swapper/520:47:1311
239742240,1sleep50-21swapper/520:47:1311
232912240,1sleep20-21swapper/222:52:538
191382240,2sleep71041-21dbus-daemon23:16:2913
191382240,2sleep71041-21dbus-daemon23:16:2913
146572240,1sleep130-21swapper/1300:41:065
103122240,1sleep10-21swapper/121:11:301
88342230,1sleep150-21swapper/1521:45:427
871099230,20cyclictest30329-21sshd00:09:485
869899231,20cyclictest1041-21dbus-daemon23:13:2310
869899231,20cyclictest1041-21dbus-daemon23:13:2310
869699230,15cyclictest0-21swapper/323:12:189
869699230,15cyclictest0-21swapper/323:12:189
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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