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2026-05-01 - 21:06
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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 highest latencies:
System rackaslot8.osadl.org (updated Fri May 01, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
224962314288,17sleep20-21swapper/207:09:002
222752289259,20sleep10-21swapper/107:06:101
225802267236,21sleep00-21swapper/007:09:510
222572248215,22sleep30-21swapper/307:05:553
158602620,0sleep30-21swapper/311:57:303
53352550,0sleep10-21swapper/109:23:561
259182540,0sleep00-21swapper/011:07:510
234662530,0sleep30-21swapper/307:10:143
212962490,0sleep30-21swapper/311:05:133
291732160,1sleep229172-21hddtemp_smartct12:05:142
282432160,0sleep30-21swapper/311:45:383
83342150,2sleep012-21ksoftirqd/011:16:000
197522150,1sleep10-21swapper/111:04:391
157402150,0sleep20-21swapper/211:01:442
128442140,0sleep20-21swapper/210:23:242
276982130,0sleep30-21swapper/308:30:003
241622130,0sleep20-21swapper/209:34:392
171442130,0sleep10-21swapper/109:49:001
309462120,0sleep10-21swapper/111:47:351
137652120,0chrt0-21swapper/311:00:213
129012120,0sleep00-21swapper/012:14:580
2269999104,2cyclictest21727-21munin-run09:15:010
5386290,0sleep10-21swapper/109:41:501
2778290,0sleep10-21swapper/111:50:131
227159996,2cyclictest26360-21pmu-power09:35:173
227159991,6cyclictest275-21systemd-journal09:11:263
227119998,1cyclictest28-21ksoftirqd/209:29:592
226999998,1cyclictest12-21ksoftirqd/009:40:000
17914290,0sleep30-21swapper/311:21:393
16615290,0chrt0-21swapper/009:30:120
5969280,3sleep228-21ksoftirqd/209:42:152
227159984,2cyclictest275-21systemd-journal09:03:513
227119984,3cyclictest275-21systemd-journal07:42:522
226999987,1cyclictest12-21ksoftirqd/011:40:000
226999987,1cyclictest12-21ksoftirqd/007:40:010
226999984,1cyclictest11556-21turbostat11:00:010
226999983,3cyclictest275-21systemd-journal08:05:330
26769270,0sleep30-21swapper/309:17:213
227159977,0cyclictest0-21swapper/312:00:103
227159973,1cyclictest0-21swapper/310:32:353
227159973,1cyclictest0-21swapper/310:20:213
227159972,3cyclictest275-21systemd-journal07:25:263
227119976,1cyclictest28-21ksoftirqd/209:19:592
227119972,3cyclictest275-21systemd-journal10:19:242
227039976,1cyclictest22-21ksoftirqd/107:25:001
227039972,3cyclictest19310-21munin-run12:00:011
226999973,3cyclictest658-21snmpd10:44:480
226999973,3cyclictest658-21snmpd10:30:070
20959270,0sleep20-21swapper/209:50:252
2018270,0sleep10-21swapper/112:08:221
11502270,0sleep10-21swapper/109:27:051
8006260,1sleep18011-21gltestperf07:45:151
30456260,0sleep10-21swapper/111:10:161
227159966,0cyclictest0-21swapper/311:16:023
227159963,2cyclictest658-21snmpd09:52:393
227159963,2cyclictest658-21snmpd09:26:393
227159963,2cyclictest504-21dbus-daemon12:30:573
227159963,2cyclictest4613-21df08:50:133
227159963,2cyclictest4613-21df08:50:133
227159963,2cyclictest4152-21ssh10:00:103
227159963,2cyclictest30990-21sh11:29:523
227159963,2cyclictest275-21systemd-journal12:23:543
227159963,2cyclictest275-21systemd-journal11:40:273
227159963,2cyclictest2654-21ssh11:31:293
227159963,2cyclictest19013-21sh09:30:563
227159963,2cyclictest15556-21ssh10:25:093
227159963,2cyclictest14673-21cut08:00:143
227159963,2cyclictest1314-21cat07:30:143
227159962,3cyclictest658-21snmpd12:36:363
227159962,3cyclictest658-21snmpd12:11:173
227159962,3cyclictest658-21snmpd12:09:263
227159962,3cyclictest658-21snmpd11:51:203
227159962,3cyclictest658-21snmpd11:35:263
227159962,3cyclictest658-21snmpd10:10:093
227159962,3cyclictest658-21snmpd09:57:003
227159962,3cyclictest658-21snmpd09:06:073
227159962,3cyclictest658-21snmpd08:40:263
227159962,3cyclictest658-21snmpd07:48:123
227159962,3cyclictest658-21snmpd07:40:063
227159962,3cyclictest658-21snmpd07:24:273
227159962,3cyclictest4122-21cut08:50:013
227159962,3cyclictest2898-21sensors_temp09:40:173
227159962,3cyclictest275-21systemd-journal10:15:143
227159962,3cyclictest275-21systemd-journal09:21:513
227159962,3cyclictest22508-21grep08:15:203
227159962,3cyclictest20942-21seq10:46:013
227159962,3cyclictest10564-21ntpq07:50:163
227159962,1cyclictest0-21swapper/312:16:353
227159962,1cyclictest0-21swapper/310:57:123
227159960,6cyclictest0-21swapper/308:39:463
227159960,6cyclictest0-21swapper/308:20:173
227159960,0cyclictest0-21swapper/311:10:593
227159960,0cyclictest0-21swapper/310:41:163
227159960,0cyclictest0-21swapper/310:36:133
227159960,0cyclictest0-21swapper/309:47:383
227119966,0cyclictest0-21swapper/208:50:122
227119966,0cyclictest0-21swapper/208:50:122
227119964,2cyclictest23022-21cron08:20:002
227119964,1cyclictest28-21ksoftirqd/209:10:002
227119964,1cyclictest0-21swapper/211:15:132
227119963,2cyclictest8587-21ssh12:30:162
227119963,2cyclictest658-21snmpd07:47:162
227119963,2cyclictest504-21dbus-daemon08:07:372
227119963,2cyclictest29253-21ssh12:23:562
227119963,2cyclictest27990-21sh09:36:052
227119963,2cyclictest24965-21ssh12:02:472
227119963,2cyclictest21111-21ssh10:46:082
227119963,2cyclictest1250-21ssh10:53:522
227119963,1cyclictest0-21swapper/212:26:242
227119962,3cyclictest9079-21cat11:35:142
227119962,3cyclictest658-21snmpd11:47:162
227119962,3cyclictest658-21snmpd11:31:232
227119962,3cyclictest658-21snmpd10:12:022
227119962,3cyclictest658-21snmpd09:55:542
227119962,3cyclictest658-21snmpd08:47:362
227119962,3cyclictest658-21snmpd08:42:482
227119962,3cyclictest658-21snmpd08:20:552
227119962,3cyclictest658-21snmpd07:39:462
227119962,3cyclictest658-21snmpd07:32:002
227119962,3cyclictest658-21snmpd07:12:422
227119962,3cyclictest504-21dbus-daemon08:55:352
227119962,3cyclictest275-21systemd-journal09:04:402
227119962,3cyclictest16022-21expr10:25:122
227119962,3cyclictest1453-21cat10:35:142
227119962,3cyclictest14322-21fw_packets12:15:132
227119962,3cyclictest11889-21expr09:45:212
227119962,3cyclictest11825-21cat11:55:132
227119962,3cyclictest10017-21cut10:40:132
227119962,2cyclictest674-21lldpd07:24:412
227119962,1cyclictest0-21swapper/210:02:362
227119960,3cyclictest4813-21rm12:10:112
227119960,0cyclictest141rcu_preempt11:40:012
227039966,0cyclictest0-21swapper/109:31:421
227039963,2cyclictest8781-21systemctl12:30:171
227039963,2cyclictest658-21snmpd12:35:151
227039963,2cyclictest658-21snmpd08:00:091
227039963,2cyclictest3112-21rm10:35:481
227039963,2cyclictest275-21systemd-journal08:10:001
227039963,2cyclictest23834-21ssh11:06:201
227039963,2cyclictest21165-21cut12:00:181
227039963,2cyclictest17440-21ssh10:25:231
227039963,1cyclictest0-21swapper/110:02:041
227039962,3cyclictest9054-21expr09:00:121
227039962,3cyclictest674-21lldpd10:22:211
227039962,3cyclictest658-21snmpd12:20:211
227039962,3cyclictest658-21snmpd11:20:501
227039962,3cyclictest658-21snmpd09:55:351
227039962,3cyclictest658-21snmpd09:17:281
227039962,3cyclictest658-21snmpd09:12:401
227039962,3cyclictest658-21snmpd08:58:561
227039962,3cyclictest658-21snmpd08:24:291
227039962,3cyclictest658-21snmpd07:55:091
227039962,3cyclictest658-21snmpd07:31:071
227039962,3cyclictest658-21snmpd07:27:431
227039962,3cyclictest658-21snmpd07:11:241
227039962,3cyclictest504-21dbus-daemon10:06:531
227039962,3cyclictest28635-21head08:30:151
227039962,3cyclictest25211-21cpu09:35:121
227039962,3cyclictest2401-21df_inode08:45:141
227039962,3cyclictest21492-21grep08:15:151
227039962,3cyclictest10150-21sed10:40:141
227039962,1cyclictest0-21swapper/111:40:111
227039960,6cyclictest0-21swapper/111:35:501
227039960,6cyclictest0-21swapper/111:18:101
227039960,6cyclictest0-21swapper/110:50:581
227039960,6cyclictest0-21swapper/107:41:531
227039960,3cyclictest5060-21users10:55:191
227039960,3cyclictest21710-21/usr/sbin/munin10:10:181
227039960,0cyclictest0-21swapper/112:19:161
226999964,1cyclictest23905-21head08:20:150
226999963,2cyclictest9326-21ssh10:20:530
226999963,2cyclictest6628-21grep07:40:190
226999963,2cyclictest658-21snmpd07:57:090
226999963,2cyclictest504-21dbus-daemon11:47:320
226999963,2cyclictest29951-21/usr/sbin/munin08:35:160
226999963,2cyclictest275-21systemd-journal11:27:510
226999963,2cyclictest275-21systemd-journal07:11:520
226999963,2cyclictest26239-21ssh12:21:440
226999963,2cyclictest25265-21ssh09:16:170
226999963,2cyclictest23878-21sh10:10:380
226999963,2cyclictest21653-21rm10:46:310
226999963,2cyclictest18788-21ssh10:26:220
226999963,1cyclictest0-21swapper/010:15:060
226999962,3cyclictest658-21snmpd12:27:500
226999962,3cyclictest658-21snmpd12:17:240
226999962,3cyclictest658-21snmpd12:01:360
226999962,3cyclictest658-21snmpd11:42:260
226999962,3cyclictest658-21snmpd11:33:010
226999962,3cyclictest658-21snmpd10:51:150
226999962,3cyclictest658-21snmpd09:46:500
226999962,3cyclictest658-21snmpd08:55:050
226999962,3cyclictest658-21snmpd08:52:230
226999962,3cyclictest658-21snmpd08:52:230
226999962,3cyclictest658-21snmpd08:31:050
226999962,3cyclictest658-21snmpd08:27:380
226999962,3cyclictest658-21snmpd08:18:440
226999962,3cyclictest658-21snmpd07:18:230
226999962,3cyclictest504-21dbus-daemon09:57:430
226999962,3cyclictest2285-21cat09:40:130
226999962,3cyclictest1251-21tune2fs10:35:120
226999962,2cyclictest674-21lldpd11:59:230
226999962,1cyclictest0-21swapper/010:09:030
226999962,1cyclictest0-21swapper/009:26:350
226999962,1cyclictest0-21swapper/009:21:340
226999960,6cyclictest0-21swapper/011:22:410
226999960,6cyclictest0-21swapper/009:05:120
226999960,2cyclictest16133-21/usr/sbin/munin12:35:110
17988260,0sleep20-21swapper/212:35:222
227159953,1cyclictest17264-21ntpq08:05:183
227159952,3cyclictest30341-21kworker/3:108:10:093
227159952,3cyclictest13546-21fschecks_time10:05:143
227159952,2cyclictest31044-21ssh12:25:033
227159952,2cyclictest25840-21cpuspeed_turbos07:15:033
227159952,2cyclictest12401-21grep07:55:133
227159951,3cyclictest3083-21cat07:35:103
227159951,3cyclictest28353-21hwlatdetect08:30:133
227159950,4cyclictest6753-21expr08:55:123
227159950,4cyclictest275-21systemd-journal10:50:043
227119954,1cyclictest28-21ksoftirqd/208:35:012
227119952,2cyclictest9611-11brltty09:20:112
227119952,2cyclictest658-21snmpd08:10:042
227119952,2cyclictest504-21dbus-daemon07:55:082
227119952,2cyclictest3781-21awk10:55:132
227119952,2cyclictest32072-21sed07:25:202
227119952,2cyclictest26450-21sh07:15:152
227119952,2cyclictest25823-21expr08:25:122
227119952,2cyclictest23894-21cron10:30:022
227119952,2cyclictest23574-21fschecks_time11:25:132
227119952,2cyclictest14754-21expr11:20:132
227119952,2cyclictest14745-21basename08:00:142
227119952,2cyclictest10237-21which07:50:142
227119952,1cyclictest0-21swapper/210:05:062
227119951,3cyclictest29376-21ssh11:10:102
227119951,3cyclictest21380-21cut11:05:132
227119950,4cyclictest3137-21irqstats11:50:142
227119950,2cyclictest13770-21df_inode09:10:112
227039955,0cyclictest0-21swapper/111:30:031
227039952,2cyclictest658-21snmpd08:35:211
227039952,2cyclictest658-21snmpd07:50:041
227039952,2cyclictest4643-21sh12:10:061
227039952,2cyclictest4285-21cpu08:50:111
227039952,2cyclictest4285-21cpu08:50:111
227039952,2cyclictest392-21cat08:40:141
227039952,2cyclictest31040-21ssh10:15:141
227039952,2cyclictest26739-21cat07:15:161
227039952,2cyclictest24936-21grep10:30:131
227039952,2cyclictest23886-21wc11:25:151
227039952,2cyclictest19590-21tr10:45:181
227039952,2cyclictest10921-21apt-get09:05:111
227039951,3cyclictest658-21snmpd09:50:321
227039951,3cyclictest533-21awk12:25:201
227039951,3cyclictest3236-21df07:35:121
227039951,3cyclictest26207-21cat08:25:151
227039951,3cyclictest16755-21sort08:05:141
226999953,1cyclictest28636-21cpuspeed_turbos12:05:130
226999952,2cyclictest9609-21taskset07:50:050
226999952,2cyclictest9374-21interrupts09:00:160
226999952,2cyclictest7667-21expr07:45:120
226999952,2cyclictest7460-21rm12:30:090
226999952,2cyclictest658-21snmpd11:50:090
226999952,2cyclictest4699-21fschecks_time10:00:130
226999952,2cyclictest30537-21dpkg07:25:120
226999952,2cyclictest28983-21cat07:20:140
226999952,2cyclictest2175-21grep08:45:120
226999952,2cyclictest20912-21taskset09:50:220
226999952,2cyclictest12057-21cat11:00:130
226999951,3cyclictest29196-21ssh11:10:040
226999951,3cyclictest275-21systemd-journal08:45:000
226999951,3cyclictest19775-21ntpq08:10:170
226999951,3cyclictest14903-21/usr/sbin/munin08:00:160
226999950,3cyclictest275-21systemd-journal07:34:130
227119940,3cyclictest29941-21runrttasks08:35:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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