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2026-08-12 - 19:48
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Wed Aug 12, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286842311285,17sleep20-21swapper/207:09:582
284412279249,20sleep10-21swapper/107:07:081
286222272241,20sleep00-21swapper/007:09:110
283852261234,18sleep30-21swapper/307:06:253
44702620,0sleep00-21swapper/009:39:420
125852600,0sleep20-21swapper/209:44:282
125752600,0sleep20-21swapper/210:03:112
108772580,0sleep10-21swapper/109:24:251
310612570,0sleep00-21swapper/012:09:090
137952560,0sleep30-21swapper/312:17:383
121172550,0sleep30-21swapper/312:35:203
57322530,0sleep20-21swapper/211:54:142
270662190,0sleep10-21swapper/111:47:131
231642190,0sleep00-21swapper/009:30:570
127212190,0sleep20-21swapper/208:55:152
275362170,0sleep00-21swapper/009:52:480
26462170,0sleep00-21swapper/007:20:160
97712140,0sleep00-21swapper/007:35:170
97712140,0sleep00-21swapper/007:35:170
241352140,0sleep20-21swapper/209:12:572
72012130,0sleep30-21swapper/312:32:583
136432120,0sleep00-21swapper/011:00:510
2880399119,1cyclictest12-21ksoftirqd/011:10:010
2881399100,7cyclictest4699-21ssh10:36:372
288139995,3cyclictest31079-21apt-get08:25:132
23801290,0sleep30-21swapper/309:50:193
16093290,0sleep10-21swapper/110:43:461
9551280,1sleep19543-21ntp_states10:20:201
288139983,3cyclictest275-21systemd-journal12:29:552
288139981,5cyclictest28-21ksoftirqd/211:59:132
288139981,4cyclictest28-21ksoftirqd/209:53:222
288139981,4cyclictest0-21swapper/211:08:282
288139981,3cyclictest18195-21/usr/sbin/munin10:45:182
288139981,1cyclictest10723-21sed10:40:152
288139981,1cyclictest0-21swapper/209:19:242
288139980,6cyclictest20573-21ssh09:49:082
288139980,5cyclictest30086-21ssh10:32:402
288139980,5cyclictest14893-21sh12:18:272
288079982,3cyclictest5068-21dump-pmu-power08:39:591
13353280,0sleep3331rcuc/311:00:383
288169973,3cyclictest9550-21ntpq10:20:203
288169973,3cyclictest5207-21ntpq11:15:173
288169973,3cyclictest27779-21ntpq10:50:173
288169973,3cyclictest275-21systemd-journal08:14:363
288169971,5cyclictest275-21systemd-journal09:25:003
288139976,1cyclictest271rcuc/209:35:072
288139975,1cyclictest18471-21ssh12:01:042
288139973,3cyclictest658-21snmpd07:52:512
288139972,4cyclictest6184-21idleruntime-cro07:30:012
288139972,4cyclictest28-21ksoftirqd/211:21:442
288139972,4cyclictest17198-21awk10:05:222
288139972,4cyclictest0-21swapper/207:40:122
288139972,3cyclictest31282-21dump-pmu-power07:15:002
288139972,3cyclictest28-21ksoftirqd/207:48:432
288139971,5cyclictest0-21swapper/211:48:372
288139971,4cyclictest28-21ksoftirqd/210:25:282
288139971,4cyclictest18107-21taskset09:06:262
288139971,4cyclictest0-21swapper/211:41:052
288139971,4cyclictest0-21swapper/211:25:402
288139971,4cyclictest0-21swapper/209:57:222
288139971,2cyclictest9441-21needreboot10:20:192
288139971,2cyclictest15027-21ssh11:01:532
288139971,1cyclictest0-21swapper/212:06:502
288139971,1cyclictest0-21swapper/209:24:402
288139970,5cyclictest5535-21ssh10:56:082
288139970,5cyclictest11219-21ssh11:19:202
288139970,3cyclictest5811-21cut08:40:152
288139970,3cyclictest18148-21expr12:20:142
288139970,2cyclictest29653-21ssh10:13:212
288079973,3cyclictest658-21snmpd11:00:011
288079973,3cyclictest275-21systemd-journal11:10:571
288079973,3cyclictest275-21systemd-journal07:22:371
288039976,1cyclictest18440-21diskmemload10:33:180
288039973,3cyclictest6029-11brltty12:39:290
288039973,3cyclictest504-21dbus-daemon12:11:330
288039973,3cyclictest504-21dbus-daemon08:00:010
288039973,3cyclictest504-21dbus-daemon07:45:010
11871270,1sleep20-21swapper/212:35:192
288169963,2cyclictest637-21sshd11:12:463
288169963,2cyclictest504-21dbus-daemon07:52:023
288169963,2cyclictest3159-21sh12:10:593
288169963,2cyclictest27928-21ssh11:47:533
288169963,2cyclictest275-21systemd-journal11:41:453
288169963,2cyclictest25257-21ssh09:32:333
288169963,2cyclictest22050-21sh11:05:493
288169963,2cyclictest21138-21ssh12:21:473
288169963,2cyclictest1790-21ssh11:32:293
288169963,2cyclictest1591-21rm11:51:093
288169963,2cyclictest14785-21sshd07:45:383
288169962,3cyclictest7362-21ntpq07:30:183
288169962,3cyclictest7035-21acpi10:00:123
288169962,3cyclictest658-21snmpd11:28:473
288169962,3cyclictest658-21snmpd11:24:203
288169962,3cyclictest658-21snmpd10:33:253
288169962,3cyclictest658-21snmpd09:35:073
288169962,3cyclictest658-21snmpd09:15:493
288169962,3cyclictest658-21snmpd09:14:253
288169962,3cyclictest658-21snmpd08:15:143
288169962,3cyclictest658-21snmpd08:00:023
288169962,3cyclictest658-21snmpd07:56:343
288169962,3cyclictest658-21snmpd07:40:103
288169962,3cyclictest658-21snmpd07:36:253
288169962,3cyclictest658-21snmpd07:36:253
288169962,3cyclictest658-21snmpd07:25:393
288169962,3cyclictest658-21snmpd07:20:353
288169962,3cyclictest5594-21grep09:40:113
288169962,3cyclictest504-21dbus-daemon11:55:183
288169962,3cyclictest275-21systemd-journal09:56:093
288169962,3cyclictest275-21systemd-journal08:45:003
288169962,3cyclictest26639-21cat12:25:143
288169962,3cyclictest1851-21awk08:30:173
288169962,3cyclictest14896-21cat09:00:133
288169962,1cyclictest0-21swapper/310:17:043
288169962,1cyclictest0-21swapper/309:28:043
288169961,3cyclictest275-21systemd-journal08:45:083
288169960,6cyclictest0-21swapper/310:46:483
288169960,5cyclictest6746-21ntp_states11:35:193
288169960,5cyclictest10766-21ssh10:40:173
288169960,5cyclictest10578-21memory08:50:163
288169960,3cyclictest19816-21ssh10:07:173
288169960,0cyclictest0-21swapper/312:03:113
288169960,0cyclictest0-21swapper/310:13:223
288139965,1cyclictest28-21ksoftirqd/209:30:012
288139965,1cyclictest271rcuc/209:25:212
288139965,1cyclictest271rcuc/208:51:412
288139965,1cyclictest271rcuc/208:36:312
288139963,2cyclictest504-21dbus-daemon07:20:012
288139963,2cyclictest27724-21gunzip08:15:192
288139963,2cyclictest2484-21fschecks_time12:30:142
288139963,1cyclictest141rcu_preempt08:00:572
288139963,1cyclictest0-21swapper/210:50:362
288139962,3cyclictest8014-21grep08:45:122
288139962,3cyclictest658-21snmpd08:10:442
288139962,3cyclictest658-21snmpd07:35:132
288139962,3cyclictest658-21snmpd07:35:132
288139962,3cyclictest658-21snmpd07:30:342
288139962,3cyclictest275-21systemd-journal07:25:012
288139962,3cyclictest23524-21expr08:05:212
288139962,3cyclictest1708-21pluginstate12:10:192
288139962,3cyclictest16344-21latency_hist09:05:012
288139962,2cyclictest275-21systemd-journal10:15:012
288139961,3cyclictest28-21ksoftirqd/211:30:162
288139961,3cyclictest28-21ksoftirqd/211:10:012
288139961,3cyclictest0-21swapper/208:20:142
288139961,1cyclictest5471-21ssh11:35:032
288079966,0cyclictest0-21swapper/112:20:061
288079966,0cyclictest0-21swapper/112:00:081
288079966,0cyclictest0-21swapper/110:46:101
288079966,0cyclictest0-21swapper/107:18:401
288079964,2cyclictest501-21in:imuxsock08:50:001
288079964,1cyclictest24333-21apt-get08:10:121
288079963,2cyclictest9770-21cat12:15:141
288079963,2cyclictest658-21snmpd11:36:591
288079963,2cyclictest658-21snmpd10:18:361
288079963,2cyclictest658-21snmpd08:25:561
288079963,2cyclictest29101-21latency_hist11:30:011
288079963,2cyclictest26170-21ssh11:27:511
288079963,2cyclictest23445-21ssh09:31:081
288079963,2cyclictest19483-21ssh09:48:191
288079963,2cyclictest18520-21ssh10:06:181
288079963,2cyclictest18440-21diskmemload11:19:581
288079963,2cyclictest13067-21diskstats11:20:131
288079963,1cyclictest0-21swapper/111:51:001
288079962,3cyclictest7900-21awk07:30:211
288079962,3cyclictest658-21snmpd12:30:161
288079962,3cyclictest658-21snmpd10:01:271
288079962,3cyclictest658-21snmpd09:41:071
288079962,3cyclictest658-21snmpd09:28:131
288079962,3cyclictest658-21snmpd08:56:541
288079962,3cyclictest658-21snmpd07:13:511
288079962,3cyclictest4294-21wc07:25:141
288079962,3cyclictest19967-21expr11:05:121
288079962,3cyclictest1878-21sed08:30:181
288079962,3cyclictest17919-21expr07:55:111
288079962,3cyclictest1529-21cat12:10:171
288079962,2cyclictest17180-21sshd07:52:441
288079960,6cyclictest0-21swapper/112:27:271
288079960,6cyclictest0-21swapper/112:07:001
288079960,6cyclictest0-21swapper/110:35:571
288079960,6cyclictest0-21swapper/110:11:321
288079960,5cyclictest17122-21cstates10:25:141
288079960,3cyclictest275-21systemd-journal09:38:001
288079960,0cyclictest0-21swapper/110:55:111
288039965,1cyclictest12-21ksoftirqd/011:45:010
288039963,2cyclictest8228-21ssh09:41:090
288039963,2cyclictest7934-21cat11:55:130
288039963,2cyclictest6721-21sh12:32:370
288039963,2cyclictest6176-21idleruntime-cro07:30:010
288039963,2cyclictest504-21dbus-daemon12:27:240
288039963,2cyclictest32675-21cat10:15:130
288039963,2cyclictest28414-21cat11:10:120
288039963,2cyclictest27429-21sh09:15:020
288039963,2cyclictest25298-21cat10:10:190
288039963,2cyclictest24354-21find11:45:200
288039963,2cyclictest23146-21ssh11:25:360
288039963,2cyclictest22844-21ssh09:11:590
288039963,2cyclictest22479-21sh12:04:040
288039963,2cyclictest20391-21/usr/sbin/munin08:00:160
288039963,2cyclictest15466-21sh11:21:100
288039963,2cyclictest11884-21sh11:38:420
288039962,3cyclictest658-21snmpd12:16:330
288039962,3cyclictest658-21snmpd10:51:310
288039962,3cyclictest658-21snmpd10:36:160
288039962,3cyclictest658-21snmpd10:26:370
288039962,3cyclictest658-21snmpd10:21:570
288039962,3cyclictest658-21snmpd09:26:160
288039962,3cyclictest658-21snmpd09:21:570
288039962,3cyclictest658-21snmpd08:48:360
288039962,3cyclictest658-21snmpd08:30:530
288039962,3cyclictest658-21snmpd08:05:200
288039962,3cyclictest658-21snmpd07:52:430
288039962,3cyclictest658-21snmpd07:45:280
288039962,3cyclictest658-21snmpd07:18:210
288039962,3cyclictest658-21snmpd07:11:420
288039962,3cyclictest6498-21tr08:40:200
288039962,3cyclictest504-21dbus-daemon07:31:360
288039962,3cyclictest275-21systemd-journal09:04:450
288039962,3cyclictest275-21systemd-journal08:40:000
288039962,1cyclictest0-21swapper/012:22:490
288039962,1cyclictest0-21swapper/011:30:100
288039962,1cyclictest0-21swapper/011:16:370
288039960,6cyclictest0-21swapper/009:46:020
24610260,0sleep00-21swapper/008:10:130
288169953,1cyclictest0-21swapper/310:55:153
288169952,2cyclictest658-21snmpd10:35:043
288169952,2cyclictest658-21snmpd08:35:213
288169952,2cyclictest658-21snmpd08:07:503
288169952,2cyclictest31045-21systemd-udevd08:25:073
288169952,2cyclictest29859-21grep07:10:153
288169952,2cyclictest28953-21cat08:20:143
288169952,2cyclictest16817-21sh10:25:113
288169952,2cyclictest16604-21cut09:05:123
288169952,2cyclictest13691-21ssh09:45:093
288169952,2cyclictest12952-21ntpq08:55:163
288169951,3cyclictest658-21snmpd07:15:083
288169951,3cyclictest0-21swapper/312:05:053
288139953,1cyclictest860-21/usr/sbin/munin08:30:182
288139951,3cyclictest17731-21cat07:55:102
288079955,0cyclictest0-21swapper/109:15:061
288079953,2cyclictest25465-21cut10:30:111
288079953,1cyclictest19536-21sed09:10:141
288079952,2cyclictest30851-21ssh09:55:071
288079952,2cyclictest29116-21expr08:20:141
288079952,2cyclictest275-21systemd-journal09:00:011
288079952,2cyclictest26562-21seq08:15:011
288079952,2cyclictest26477-21ssh10:50:031
288079952,2cyclictest24515-21ssh09:50:311
288079952,2cyclictest17076-21idleruntime09:05:141
288079952,2cyclictest14084-21rm11:40:011
288079952,2cyclictest13861-21cat07:45:161
288079952,2cyclictest11656-21cat07:40:141
288079952,2cyclictest10632-21expr12:35:121
288079952,2cyclictest10259-21seq07:36:021
288079952,2cyclictest10259-21seq07:36:011
288079951,3cyclictest7108-21ssh11:55:061
288079951,3cyclictest658-21snmpd08:50:061
288079951,3cyclictest5892-21/usr/sbin/munin08:40:161
288079951,3cyclictest22459-21cat08:05:141
288079951,3cyclictest20335-21/usr/sbin/munin08:00:161
288039953,2cyclictest12-21ksoftirqd/010:40:120
288039952,2cyclictest658-21snmpd10:00:150
288039952,2cyclictest31781-21grep11:50:150
288039952,2cyclictest30794-21sh09:55:050
288039952,2cyclictest29095-21expr08:20:140
288039952,2cyclictest2723-21ssh10:55:120
288039952,2cyclictest18812-21head10:45:150
288039952,2cyclictest18072-21taskset09:05:590
288039952,2cyclictest12328-21expr08:55:120
288039951,3cyclictest27905-21cat08:15:200
288039951,3cyclictest10725-21/usr/sbin/munin08:50:170
288039950,4cyclictest31054-21/usr/sbin/munin08:25:140
288039950,4cyclictest15510-21/usr/sbin/munin10:05:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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