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2026-03-29 - 12:15
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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 highest latencies:
System rackeslot2.osadl.org (updated Sun Mar 29, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4188974992720,2cyclictest134050irq/121-eno123:15:021
4518512250,1sleep0451855-21kthreadcore00:06:210
4188973992416,7cyclictest396153-21sh23:35:020
4188973992316,6cyclictest1296-21polkitd23:25:020
4188973992315,7cyclictest398104-21irqrtprio23:36:200
4188974992219,2cyclictest177662-21systemd-run21:30:001
4188973992219,2cyclictest439376-40gzip00:00:010
4188973992212,5cyclictest0-21swapper/022:30:020
4188973992212,4cyclictest1290-21dbus-daemon20:55:020
4188974992118,2cyclictest2176-21systemd19:15:011
4188975992017,1cyclictest0-21swapper/200:15:002
4188975992016,1cyclictest0-21swapper/222:40:012
4188974992014,5cyclictest1-21systemd21:55:011
4188974992013,2cyclictest134050irq/121-eno122:35:011
4188973992017,2cyclictest1290-21dbus-daemon23:20:010
4188973992016,2cyclictest2640033-1atop20:10:010
2649091200,2phc2sys0-21swapper/323:52:143
4188975991917,1cyclictest0-21swapper/200:31:162
4188975991916,1cyclictest0-21swapper/222:50:022
4188975991916,1cyclictest0-21swapper/220:05:002
4188974991916,2cyclictest168931-21apt-key21:25:001
4188973991912,6cyclictest0-21swapper/021:50:010
4188973991910,5cyclictest477985-21kthreadcore00:21:220
4188973991910,5cyclictest292147-21/usr/sbin/munin22:36:170
4188973991910,4cyclictest0-21swapper/023:11:220
2649091190,2phc2sys0-21swapper/322:47:023
2649091190,2phc2sys0-21swapper/322:26:183
418897599186,5cyclictest0-21swapper/221:31:132
4188974991815,2cyclictest465631-21latency_hist00:15:011
4188974991815,2cyclictest334700-21cron23:00:001
4188974991815,2cyclictest203808-21apt-config21:45:001
4188974991815,2cyclictest189698-21kthreadcore21:36:211
4188974991815,2cyclictest1-21systemd22:50:001
4188974991814,3cyclictest257-21systemd-journal22:20:011
418897399187,6cyclictest0-21swapper/023:26:210
418897399184,8cyclictest309747-21aten2.4-expect22:46:140
4188973991815,2cyclictest1296-21polkitd21:10:000
4188973991815,2cyclictest118328-21latency_hist20:50:000
4188973991812,5cyclictest456738-21cron00:14:550
418897399181,12cyclictest231013-21/usr/sbin/munin22:01:190
2649091180,3phc2sys0-21swapper/323:28:453
2649091180,2phc2sys0-21swapper/323:10:103
2649091180,2phc2sys0-21swapper/321:54:123
2649091180,2phc2sys0-21swapper/321:39:123
2649091180,1phc2sys0-21swapper/300:22:083
4188975991714,1cyclictest0-21swapper/222:05:012
4188975991714,1cyclictest0-21swapper/220:39:192
4188975991714,1cyclictest0-21swapper/219:11:252
4188975991714,1cyclictest0-21swapper/200:05:002
4188975991713,2cyclictest0-21swapper/223:11:202
4188975991713,2cyclictest0-21swapper/219:51:212
4188975991712,1cyclictest0-21swapper/221:36:232
4188974991714,2cyclictest88110-21turbostat20:25:001
4188974991714,2cyclictest430703-21ls23:55:001
4188974991714,2cyclictest397957-21sed23:36:191
4188974991714,2cyclictest223757-21kthreadcore21:56:221
4188974991714,2cyclictest160054-21systemd-run21:20:011
4188974991714,2cyclictest1290-21dbus-daemon19:20:011
4188974991714,2cyclictest113459-21gltestperf20:46:181
4188974991713,3cyclictest1327-21in:imuxsock20:05:011
4188974991711,2cyclictest336581-21tail23:01:191
418897499170,11cyclictest1-21systemd23:50:011
418897399179,4cyclictest223905-21kthreadcore21:56:210
418897399178,5cyclictest0-21swapper/023:45:000
418897399178,4cyclictest0-21swapper/022:15:010
418897399172,10cyclictest466403-21apt-get00:16:130
4188973991714,2cyclictest426475-21kthreadcore23:51:200
4188973991714,2cyclictest2250-21kthreadcore19:15:010
4188973991714,2cyclictest171ktimers/019:27:440
4188973991714,2cyclictest0-21swapper/019:20:000
4188973991713,3cyclictest241155-21kthreadcore22:06:200
4188973991713,3cyclictest241155-21kthreadcore22:06:200
4188973991713,2cyclictest0-21swapper/022:20:010
4188973991710,6cyclictest0-21swapper/022:51:250
2902298170,3rtkit-daemon1071-21munin-node19:41:500
2902298170,2rtkit-daemon0-21swapper/100:39:001
4188975991614,1cyclictest0-21swapper/221:26:152
4188975991613,1cyclictest0-21swapper/223:05:002
4188975991613,1cyclictest0-21swapper/222:15:002
4188975991613,1cyclictest0-21swapper/222:00:012
4188975991613,1cyclictest0-21swapper/220:45:002
4188975991613,1cyclictest0-21swapper/220:35:012
4188975991613,1cyclictest0-21swapper/219:24:322
4188975991612,2cyclictest0-21swapper/221:47:212
4188975991612,2cyclictest0-21swapper/221:01:152
4188975991611,1cyclictest0-21swapper/223:47:062
4188974991613,2cyclictest467537-21ps00:16:191
4188974991613,2cyclictest413276-21idleruntime-cro23:45:001
4188974991613,2cyclictest387174-21latency_hist23:30:011
4188974991610,5cyclictest432053-21cstates23:56:171
418897399167,5cyclictest190569-21kthreadcore21:36:210
418897399167,5cyclictest162053-21irqcore21:21:200
418897399167,2cyclictest0-21swapper/000:26:190
418897399165,6cyclictest328464-21kthreadcore22:56:210
4188973991613,2cyclictest41484-21kthreadcore19:46:200
4188973991613,2cyclictest336527-21fschecks_time23:01:180
4188973991613,2cyclictest196796-21gltestperf21:41:170
4188973991613,2cyclictest143903-21cpuspeed_turbos21:11:160
4188973991613,2cyclictest1326-21systemd-logind23:50:020
4188973991612,3cyclictest344097-21kworker/u16:4+nfsiod23:05:590
4188973991612,3cyclictest214856-21ps21:51:200
4188973991612,3cyclictest195139-21kworker/u16:2+nfsiod22:32:270
2649091160,2phc2sys0-21swapper/322:51:523
2649091160,1phc2sys0-21swapper/323:05:253
2649091160,1phc2sys0-21swapper/322:12:153
1194052160,2sleep20-21swapper/220:51:172
418897599151,4cyclictest0-21swapper/221:10:012
4188975991513,1cyclictest0-21swapper/222:55:002
4188975991512,1cyclictest0-21swapper/223:35:002
4188975991512,1cyclictest0-21swapper/223:27:402
4188975991512,1cyclictest0-21swapper/223:00:002
4188975991512,1cyclictest0-21swapper/222:45:012
4188975991512,1cyclictest0-21swapper/221:11:202
4188975991512,1cyclictest0-21swapper/220:30:012
4188975991512,1cyclictest0-21swapper/200:40:012
418897499158,2cyclictest134050irq/121-eno100:27:291
4188974991512,2cyclictest89049-21df_inode20:26:161
4188974991512,2cyclictest50925-21needreboot19:51:231
4188974991512,2cyclictest475947-21hddtemp_smartct00:21:191
4188974991512,2cyclictest449845-21gltestperf00:06:181
4188974991512,2cyclictest292816-21uniq22:36:161
4188974991512,2cyclictest274814-21cpuspeed22:26:151
4188974991512,2cyclictest137545-21gltestperf21:06:171
4188974991512,2cyclictest10899-21tr19:21:191
4188974991512,2cyclictest101235-21fschecks_time20:36:171
4188974991511,3cyclictest88300-21kworker/u16:2+nfsiod21:13:001
4188974991511,3cyclictest344097-21kworker/u16:4+nfsiod23:33:391
4188974991511,3cyclictest109744-21kthreadcore20:41:221
4188974991510,4cyclictest34742-21fschecks_time19:41:171
418897499150,3cyclictest0-21swapper/123:07:051
418897399157,4cyclictest501706-21fschecks_count00:36:180
418897399157,2cyclictest0-21swapper/000:34:360
418897399156,5cyclictest0-21swapper/021:32:430
418897399155,6cyclictest0-21swapper/021:17:560
418897399151,8cyclictest0-21swapper/022:20:070
4188973991513,1cyclictest29021-21rtkit-daemon20:01:090
4188973991512,2cyclictest71107-21gltestperf20:11:190
4188973991512,2cyclictest23306-21kthreadcore19:31:190
4188973991512,2cyclictest1290-21dbus-daemon20:00:010
4188973991511,3cyclictest195139-21kworker/u16:2+nfsiod22:42:140
4188973991511,3cyclictest1-21systemd20:23:200
4188973991511,2cyclictest0-21swapper/019:40:010
418897399150,2cyclictest130384-21perf21:00:000
2649091150,3phc2sys0-21swapper/322:06:203
2649091150,3phc2sys0-21swapper/322:06:203
2649091150,2phc2sys0-21swapper/321:23:213
5087242140,2sleep30-21swapper/300:39:553
418897599149,3cyclictest1662962sleep221:21:272
418897599147,2cyclictest0-21swapper/223:21:302
418897599141,3cyclictest0-21swapper/219:30:012
4188975991412,1cyclictest0-21swapper/221:55:002
4188975991412,1cyclictest0-21swapper/219:15:022
4188975991411,1cyclictest0-21swapper/223:41:182
4188975991411,1cyclictest0-21swapper/223:16:192
4188975991411,1cyclictest0-21swapper/222:31:142
4188975991411,1cyclictest0-21swapper/222:25:022
4188975991411,1cyclictest0-21swapper/221:45:002
4188975991411,1cyclictest0-21swapper/220:57:202
4188975991411,1cyclictest0-21swapper/220:20:012
4188975991411,1cyclictest0-21swapper/220:11:202
4188975991411,1cyclictest0-21swapper/219:50:012
4188975991411,1cyclictest0-21swapper/200:26:142
4188975991411,1cyclictest0-21swapper/200:00:032
4188975991410,2cyclictest0-21swapper/223:52:542
4188975991410,2cyclictest0-21swapper/219:31:182
418897599140,7cyclictest0-21swapper/219:56:162
418897499148,2cyclictest134050irq/121-eno122:51:201
4188974991412,1cyclictest130485-21cut21:00:011
4188974991411,2cyclictest76097-21latency_hist20:15:001
4188974991411,2cyclictest55558-21kthreadcore19:56:231
4188974991411,2cyclictest441203-21tail00:01:181
4188974991411,2cyclictest41564-21kthreadcore19:46:201
4188974991411,2cyclictest370818-21aten_repower_po23:21:171
4188974991411,2cyclictest195139-21kworker/u16:2-events_power_efficient22:21:241
4188974991411,2cyclictest142451-21diskmemload23:15:141
4188974991411,2cyclictest0-21swapper/122:10:001
4188974991411,2cyclictest0-21swapper/122:10:001
4188974991411,2cyclictest0-21swapper/120:35:011
4188974991410,3cyclictest306030-21mailstats22:41:251
418897399144,6cyclictest0-21swapper/020:43:200
4188973991411,2cyclictest12712-21kthreadcore19:21:210
4188973991411,2cyclictest1-21systemd21:25:200
4188973991410,3cyclictest89640-21irqrtprio20:26:190
2649091141,1phc2sys0-21swapper/323:37:243
2649091141,1phc2sys0-21swapper/300:19:363
2649091140,4phc2sys0-21swapper/300:03:053
2649091140,3phc2sys0-21swapper/321:59:383
2649091140,2phc2sys0-21swapper/323:47:183
2649091140,2phc2sys0-21swapper/323:20:043
2649091140,1phc2sys0-21swapper/300:29:443
418897599139,2cyclictest0-21swapper/220:46:272
418897599135,2cyclictest0-21swapper/200:15:222
418897599134,4cyclictest0-21swapper/220:06:142
418897599131,7cyclictest0-21swapper/219:40:012
4188975991311,1cyclictest0-21swapper/222:26:202
4188975991310,1cyclictest0-21swapper/223:06:212
4188975991310,1cyclictest0-21swapper/222:19:012
4188975991310,1cyclictest0-21swapper/219:41:202
4188975991310,1cyclictest0-21swapper/200:21:222
418897599130,11cyclictest0-21swapper/223:36:102
418897499139,3cyclictest134149-21kthreadcore21:01:211
418897499137,2cyclictest233670-21kthreadcore22:01:211
4188974991310,2cyclictest69294-21sendmail_mailtr20:06:251
4188974991310,2cyclictest496194-21kthreadcore00:31:211
4188974991310,2cyclictest30430-21kthreadcore19:36:201
4188974991310,2cyclictest249177-21gltestperf22:11:181
4188974991310,2cyclictest179331-21gltestperf21:31:181
4188974991310,2cyclictest17300-21kthreadcore19:26:211
4188974991310,2cyclictest119400-21gltestperf20:51:171
418897399135,5cyclictest1290-21dbus-daemon21:05:010
4188973991310,2cyclictest95539-21sed20:31:190
4188973991310,2cyclictest77487-21irqcore20:16:200
4188973991310,2cyclictest49227-21kthreadcore19:51:220
4188973991310,2cyclictest103146-21kthreadcore20:36:200
2649091133,2phc2sys0-21swapper/322:21:173
2649091130,2phc2sys0-21swapper/319:55:523
2649091130,1phc2sys0-21swapper/322:18:113
418897599129,1cyclictest0-21swapper/220:21:202
418897599129,1cyclictest0-21swapper/219:10:002
418897599129,1cyclictest0-21swapper/219:10:002
418897599122,8cyclictest0-21swapper/200:10:012
418897599121,5cyclictest0-21swapper/221:20:012
4188975991210,1cyclictest0-21swapper/222:06:202
4188975991210,1cyclictest0-21swapper/222:06:202
418897499129,2cyclictest79061-21kthreadcore20:16:221
418897499129,2cyclictest22663-21fschecks_time19:31:161
418897499129,2cyclictest205596-21fschecks_time21:46:161
418897399121,6cyclictest0-21swapper/000:00:210
2649091125,2phc2sys0-21swapper/323:31:213
2649091121,5phc2sys0-21swapper/321:06:133
2649091121,5phc2sys0-21swapper/300:31:143
2649091120,3phc2sys0-21swapper/321:27:013
2649091120,2phc2sys0-21swapper/320:18:533
2649091120,1phc2sys0-21swapper/323:17:043
2649091120,1phc2sys0-21swapper/321:34:233
2649091120,1phc2sys0-21swapper/320:47:113
418897399115,5cyclictest257-21systemd-journal19:10:000
418897399115,5cyclictest257-21systemd-journal19:10:000
2649091112,2phc2sys0-21swapper/321:48:033
2649091110,2phc2sys0-21swapper/322:43:023
2649091110,2phc2sys0-21swapper/321:11:033
2649091110,1phc2sys0-21swapper/320:02:393
2649091104,2phc2sys0-21swapper/322:30:343
2649091103,2phc2sys0-21swapper/320:12:123
2649091101,2phc2sys0-21swapper/323:56:233
2649091101,2phc2sys0-21swapper/320:36:253
2649091101,2phc2sys0-21swapper/319:16:263
2649091100,2phc2sys0-21swapper/323:43:493
2649091100,2phc2sys0-21swapper/322:57:243
2649091100,2phc2sys0-21swapper/322:37:123
2649091100,2phc2sys0-21swapper/322:03:023
2649091100,2phc2sys0-21swapper/321:41:093
2649091100,2phc2sys0-21swapper/321:19:333
2649091100,2phc2sys0-21swapper/321:01:133
2649091100,2phc2sys0-21swapper/321:00:013
2649091100,2phc2sys0-21swapper/319:35:023
2649091100,2phc2sys0-21swapper/319:11:173
41889749994,4cyclictest4188984-21systemctl19:10:001
41889749994,4cyclictest4188984-21systemctl19:10:001
264909191,2phc2sys0-21swapper/323:00:413
264909191,2phc2sys0-21swapper/320:20:023
264909191,2phc2sys0-21swapper/320:08:243
264909191,2phc2sys0-21swapper/319:45:553
264909191,1phc2sys0-21swapper/320:31:163
264909190,2phc2sys0-21swapper/320:26:153
264909190,2phc2sys0-21swapper/319:51:203
264909190,2phc2sys0-21swapper/319:41:153
264909190,2phc2sys0-21swapper/319:36:183
264909190,2phc2sys0-21swapper/319:26:243
264909190,2phc2sys0-21swapper/319:20:033
264909190,2phc2sys0-21swapper/319:06:163
264909190,2phc2sys0-21swapper/319:06:163
264909190,2phc2sys0-21swapper/300:10:023
264909190,2phc2sys0-21swapper/300:05:293
264909180,2phc2sys0-21swapper/320:51:153
264909180,1phc2sys0-21swapper/320:41:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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