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2025-11-15 - 13:06
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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 all highest latencies:
System rackaslot8.osadl.org (updated Sat Nov 15, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
173852286253,20sleep20-21swapper/219:06:442
174082279245,21sleep30-21swapper/319:07:013
174062272240,21sleep10-21swapper/119:07:001
173812254220,23sleep00-21swapper/019:06:430
204152630,0sleep00-21swapper/021:18:190
92482620,0sleep00-21swapper/021:32:410
15232600,0sleep20-21swapper/200:24:062
3512580,0sleep20-21swapper/222:55:022
38192570,0sleep00-21swapper/021:00:140
270252560,0sleep00-21swapper/022:50:180
3432550,0sleep30-21swapper/320:50:203
58462530,0sleep00-21swapper/022:14:510
149062190,0sleep10-21swapper/123:05:011
124222180,0sleep10-21swapper/100:09:561
42552170,0sleep10-21swapper/123:19:581
310392170,0sleep10-21swapper/100:00:111
249322130,0sleep10-21swapper/123:33:251
191302130,0sleep20-21swapper/223:29:522
189202130,0sleep10-21swapper/122:45:151
8094290,0sleep00-21swapper/023:44:160
177629994,3cyclictest20523-21systemd-udevd21:52:203
177629994,3cyclictest19982-21systemd-journal22:43:583
177579993,3cyclictest1576-21dump-pmu-power21:50:012
177489992,4cyclictest7574-21latency_hist23:00:010
29487280,0sleep20-21swapper/222:30:182
177629983,3cyclictest20523-21systemd-udevd22:04:213
177629983,3cyclictest19982-21systemd-journal20:47:433
177629983,3cyclictest19982-21systemd-journal19:58:213
177629983,3cyclictest19982-21systemd-journal19:51:153
177629983,3cyclictest19982-21systemd-journal19:21:403
177579983,3cyclictest19982-21systemd-journal19:50:502
177579983,3cyclictest19982-21systemd-journal19:10:232
177579983,3cyclictest19982-21systemd-journal00:08:152
177579981,3cyclictest19982-21systemd-journal22:04:432
177539986,1cyclictest0-21swapper/100:16:041
177539984,3cyclictest20958-21ntp_states20:25:181
177539983,3cyclictest19982-21systemd-journal19:15:011
177539983,1cyclictest0-21swapper/121:59:451
177539980,5cyclictest15264-21perf20:15:001
177489985,2cyclictest6531-21sh22:15:160
177489984,3cyclictest30654-21snmpd23:12:200
177489984,3cyclictest22515-21sshd19:16:440
177489983,3cyclictest19982-21systemd-journal23:07:180
177489983,3cyclictest19982-21systemd-journal23:07:180
177489983,3cyclictest19982-21systemd-journal21:52:090
16950280,0sleep30-21swapper/300:35:123
6557272,0sleep0141rcu_preempt19:55:120
177629975,2cyclictest34-21ksoftirqd/300:00:003
177629974,2cyclictest34-21ksoftirqd/323:55:003
177629974,2cyclictest34-21ksoftirqd/320:35:003
177629973,3cyclictest508-21dbus-daemon19:44:353
177629973,3cyclictest19982-21systemd-journal19:19:453
177629973,3cyclictest13050-21cat21:35:163
177629973,2cyclictest20523-21systemd-udevd21:58:213
177629973,2cyclictest19982-21systemd-journal23:12:093
177629973,1cyclictest0-21swapper/323:03:113
177629973,1cyclictest0-21swapper/321:24:203
177629973,1cyclictest0-21swapper/321:17:153
177629973,1cyclictest0-21swapper/300:22:293
177629972,3cyclictest19982-21systemd-journal22:57:133
177629972,3cyclictest19982-21systemd-journal22:37:443
177629972,3cyclictest19982-21systemd-journal22:18:443
177629972,3cyclictest19982-21systemd-journal20:57:353
177629972,3cyclictest19982-21systemd-journal00:04:303
177629972,1cyclictest0-21swapper/300:07:293
177579974,2cyclictest508-21dbus-daemon19:38:192
177579974,2cyclictest30654-21snmpd00:34:402
177579973,3cyclictest508-21dbus-daemon00:40:002
177579973,3cyclictest29741-11brltty22:23:572
177579973,3cyclictest2539-21cat20:55:192
177579973,3cyclictest19982-21systemd-journal22:06:262
177579973,3cyclictest0-21swapper/223:17:212
177579973,2cyclictest19982-21systemd-journal00:13:382
177579973,1cyclictest0-21swapper/221:57:172
177579973,1cyclictest0-21swapper/221:12:502
177579972,4cyclictest0-21swapper/222:47:142
177579972,3cyclictest19982-21systemd-journal20:05:012
177579972,3cyclictest17970-21rm22:45:012
177579971,4cyclictest7661-21lldpd19:21:542
177579970,3cyclictest460-21ssh22:55:032
177539976,1cyclictest22-21ksoftirqd/100:20:001
177539974,2cyclictest508-21dbus-daemon00:35:011
177539973,3cyclictest508-21dbus-daemon22:10:191
177539973,3cyclictest3877-21sed19:50:011
177539973,3cyclictest30654-21snmpd23:59:541
177539973,3cyclictest30654-21snmpd20:51:421
177539973,3cyclictest21938-21cat22:25:171
177539973,3cyclictest19982-21systemd-journal20:41:201
177539973,3cyclictest0-21swapper/123:27:321
177539973,3cyclictest0-21swapper/121:33:461
177539973,1cyclictest0-21swapper/122:54:321
177539973,1cyclictest0-21swapper/122:01:281
177539973,1cyclictest0-21swapper/121:36:421
177539973,1cyclictest0-21swapper/121:23:051
177539972,4cyclictest22-21ksoftirqd/120:31:481
177539972,2cyclictest7661-21lldpd22:33:171
177539971,3cyclictest29389-21munin-run23:15:011
177539970,3cyclictest3089-21expr00:25:141
177489974,2cyclictest24761-21apt-get20:35:150
177489974,2cyclictest11736-21in:imuxsock22:45:380
177489973,3cyclictest30654-21snmpd23:19:270
177489973,3cyclictest19982-21systemd-journal23:37:220
177489973,3cyclictest19982-21systemd-journal22:27:080
177489973,3cyclictest19982-21systemd-journal20:51:190
177489973,3cyclictest1-21systemd21:26:220
177489973,1cyclictest0-21swapper/022:37:480
177489973,1cyclictest0-21swapper/022:33:130
177489973,1cyclictest0-21swapper/022:21:020
177489973,1cyclictest0-21swapper/000:36:590
177489973,1cyclictest0-21swapper/000:30:190
177489972,4cyclictest29507-21ls19:35:020
177489972,3cyclictest7661-21lldpd19:48:240
177489972,3cyclictest19982-21systemd-journal22:01:250
177489972,3cyclictest19982-21systemd-journal21:38:530
177489972,3cyclictest19982-21systemd-journal20:44:150
177489972,3cyclictest19982-21systemd-journal19:43:450
177489971,3cyclictest27209-21dump-pmu-power00:20:010
177489970,6cyclictest19982-21systemd-journal23:47:480
177489970,5cyclictest19982-21systemd-journal00:26:370
177489970,4cyclictest2492-21awk00:25:010
177629964,1cyclictest668-21runrttasks21:30:153
177629963,2cyclictest9943-21ssh00:30:033
177629963,2cyclictest668-21runrttasks23:31:403
177629963,2cyclictest4675-21ssh23:20:073
177629963,2cyclictest31999-21ssh23:15:463
177629963,2cyclictest22977-21ssh22:25:243
177629963,2cyclictest13618-21sh00:10:153
177629963,2cyclictest11736-21in:imuxsock19:35:243
177629963,2cyclictest0-21swapper/323:07:013
177629963,2cyclictest0-21swapper/323:07:013
177629962,3cyclictest7661-21lldpd00:25:203
177629962,3cyclictest30654-21snmpd23:46:153
177629962,3cyclictest30654-21snmpd21:10:253
177629962,3cyclictest30654-21snmpd21:09:163
177629962,3cyclictest30654-21snmpd21:00:243
177629962,3cyclictest30654-21snmpd20:30:113
177629962,3cyclictest30654-21snmpd19:26:243
177629962,3cyclictest29031-21tune2fs22:30:163
177629962,3cyclictest28208-21cat19:30:173
177629962,3cyclictest2813-21cat23:40:173
177629962,3cyclictest25707-21packagekitd22:50:013
177629962,3cyclictest2494-21cat19:45:193
177629962,3cyclictest20227-21fw_packets21:40:153
177629962,3cyclictest19982-21systemd-journal22:12:063
177629962,3cyclictest18779-21expr22:45:143
177629962,3cyclictest13125-21sed23:25:183
177629962,3cyclictest12367-21grep20:05:223
177629962,3cyclictest10139-21expr20:00:213
177629962,1cyclictest0-21swapper/323:38:443
177629962,1cyclictest0-21swapper/322:06:573
177629962,1cyclictest0-21swapper/300:15:073
177629961,3cyclictest19982-21systemd-journal20:16:183
177629961,2cyclictest29697-21ssh21:46:103
177629960,3cyclictest13694-21ssh22:20:063
177629960,2cyclictest30370-21cstates21:25:133
177579966,0cyclictest6329-21ssh22:15:042
177579963,2cyclictest8804-21chrt20:00:072
177579963,2cyclictest731-21sshd20:51:522
177579963,2cyclictest5552-21ssh23:20:162
177579963,2cyclictest5369-21sh22:35:382
177579963,2cyclictest508-21dbus-daemon20:45:042
177579963,2cyclictest508-21dbus-daemon19:25:192
177579963,2cyclictest30654-21snmpd20:27:022
177579963,2cyclictest27332-21awk23:35:152
177579963,2cyclictest26644-21sh00:19:292
177579963,2cyclictest24839-21cpuspeed20:35:142
177579963,2cyclictest22698-21sh23:31:272
177579963,2cyclictest18004-21cat20:20:132
177579963,2cyclictest14986-21sshd20:11:472
177579963,1cyclictest0-21swapper/222:25:132
177579962,3cyclictest5553-21fw_packets21:30:172
177579962,3cyclictest30654-21snmpd23:41:572
177579962,3cyclictest30654-21snmpd22:12:002
177579962,3cyclictest30654-21snmpd21:35:042
177579962,3cyclictest30654-21snmpd21:20:212
177579962,3cyclictest30654-21snmpd21:03:432
177579962,3cyclictest30654-21snmpd19:59:412
177579962,3cyclictest24783-21date23:55:162
177579962,3cyclictest2137-21cat21:50:142
177579962,3cyclictest15806-21df_inode21:15:152
177579962,3cyclictest0-21swapper/221:26:012
177579962,1cyclictest0-21swapper/223:45:062
177579962,1cyclictest0-21swapper/223:10:542
177579962,1cyclictest0-21swapper/223:07:092
177579962,1cyclictest0-21swapper/223:07:092
177579962,1cyclictest0-21swapper/221:40:492
177579962,1cyclictest0-21swapper/200:25:222
177579961,4cyclictest16606-21apt-get23:50:122
177579961,3cyclictest19982-21systemd-journal19:50:002
177579960,6cyclictest0-21swapper/219:15:062
177579960,5cyclictest8008-21/usr/sbin/munin23:00:182
177579960,4cyclictest30862-40logrotate00:00:002
177579960,0cyclictest0-21swapper/221:05:022
177579960,0cyclictest0-21swapper/220:30:022
177579960,0cyclictest0-21swapper/219:30:012
177539963,2cyclictest508-21dbus-daemon23:40:171
177539963,2cyclictest30654-21snmpd19:20:241
177539963,2cyclictest29902-21ssh21:25:051
177539963,2cyclictest29809-21sh23:36:111
177539963,2cyclictest1861-21ssh21:50:051
177539963,2cyclictest17928-21sensors_temp23:50:181
177539963,2cyclictest13182-21expr00:10:131
177539963,2cyclictest0-21swapper/122:40:241
177539963,1cyclictest0-21swapper/121:12:001
177539962,3cyclictest508-21dbus-daemon19:45:011
177539962,3cyclictest4198-21cat21:00:161
177539962,3cyclictest30654-21snmpd21:05:211
177539962,3cyclictest30654-21snmpd20:55:391
177539962,3cyclictest30654-21snmpd20:48:031
177539962,3cyclictest30654-21snmpd20:15:101
177539962,3cyclictest30654-21snmpd20:01:071
177539962,3cyclictest30654-21snmpd19:35:061
177539962,3cyclictest30654-21snmpd19:31:541
177539962,3cyclictest25978-21cat19:25:151
177539962,3cyclictest25527-21cat22:05:201
177539962,3cyclictest16311-21sed23:05:211
177539962,3cyclictest16311-21sed23:05:211
177539962,3cyclictest1432-21cat22:55:161
177539962,3cyclictest11744-21cat20:05:181
177539962,3cyclictest0-21swapper/121:17:561
177539962,2cyclictest19982-21systemd-journal23:45:431
177539962,1cyclictest0-21swapper/122:35:541
177539962,1cyclictest0-21swapper/122:15:171
177539961,4cyclictest19982-21systemd-journal19:50:011
177539961,3cyclictest7661-21lldpd19:55:111
177539961,3cyclictest19982-21systemd-journal00:35:231
177539960,6cyclictest0-21swapper/121:42:371
177539960,5cyclictest19982-21systemd-journal19:16:341
177539960,4cyclictest19982-21systemd-journal20:40:001
177539960,3cyclictest5992-21rm23:20:191
177539960,2cyclictest28445-21smart_sda21:45:211
177489964,2cyclictest12-21ksoftirqd/022:40:020
177489963,2cyclictest9638-21awk23:00:210
177489963,2cyclictest5739-21/usr/sbin/munin21:05:190
177489963,2cyclictest30654-21snmpd20:26:080
177489963,2cyclictest29219-21/usr/sbin/munin20:45:160
177489963,2cyclictest23221-21expr21:20:180
177489963,2cyclictest18963-21tr20:20:190
177489963,2cyclictest11307-21expr20:05:160
177489963,1cyclictest0-21swapper/023:56:410
177489962,3cyclictest508-21dbus-daemon21:56:250
177489962,3cyclictest30654-21snmpd23:25:260
177489962,3cyclictest30654-21snmpd21:11:210
177489962,3cyclictest30654-21snmpd20:17:460
177489962,3cyclictest27684-21expr21:45:160
177489962,3cyclictest26264-21ntp_states19:25:180
177489962,3cyclictest17759-21awk23:50:170
177489962,3cyclictest13959-21cat20:10:140
177489962,1cyclictest0-21swapper/023:30:500
177489962,1cyclictest0-21swapper/000:05:450
177489961,3cyclictest19982-21systemd-journal23:22:210
177489961,3cyclictest19982-21systemd-journal20:30:290
177489961,3cyclictest19982-21systemd-journal19:51:420
177489961,3cyclictest19982-21systemd-journal19:14:580
177489961,3cyclictest19982-21systemd-journal00:00:190
177489960,6cyclictest0-21swapper/020:02:320
177489960,5cyclictest20166-21fschecks_count21:40:140
177489960,4cyclictest19982-21systemd-journal22:05:100
177629952,2cyclictest30654-21snmpd20:20:143
177629952,2cyclictest27964-21grep20:40:173
177629952,2cyclictest19986-21basename20:25:123
177629952,2cyclictest18224-21expr19:10:133
177629952,2cyclictest13808-21expr20:10:153
177579953,1cyclictest0-21swapper/220:15:112
177579952,2cyclictest30654-21snmpd19:40:062
177579951,3cyclictest27676-21cat20:40:162
177539952,2cyclictest17854-21cat20:20:131
177539952,2cyclictest13647-21sh22:20:051
177489953,1cyclictest301422sleep019:35:150
177489952,2cyclictest1653-21df20:55:130
177489951,3cyclictest30654-21snmpd19:20:030
177489950,4cyclictest12985-21cpu00:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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