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2026-04-24 - 11:07
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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 Fri Apr 24, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316542349286,19sleep20-21swapper/219:07:332
314782286220,22sleep30-21swapper/319:05:333
316412266234,21sleep10-21swapper/119:07:241
317812262232,19sleep00-21swapper/019:09:120
69972610,0sleep00-21swapper/023:54:590
318952610,0sleep20-21swapper/222:52:082
128822570,0sleep10-21swapper/100:17:231
16722550,0sleep20-21swapper/221:16:412
316432530,0sleep30-21swapper/322:51:563
177742520,0sleep30-21swapper/321:00:123
286642210,0sleep30-21swapper/321:33:083
64052190,0sleep20-21swapper/222:36:492
142452190,0sleep10-21swapper/123:00:361
78482180,0sleep30-21swapper/300:14:543
34202180,0sleep00-21swapper/022:35:160
6562170,0sleep00-21swapper/021:15:540
251902150,0sleep30-21swapper/323:07:353
4272130,0sleep30-21swapper/321:55:063
31937991311,1cyclictest12-21ksoftirqd/023:59:590
246542120,0sleep20-21swapper/223:45:212
17994290,0sleep30-21swapper/300:20:183
6982280,0sleep30-21swapper/323:35:163
319419980,7cyclictest17320-21ssh21:25:522
319419980,7cyclictest17320-21ssh21:25:512
2934280,0sleep20-21swapper/200:11:082
12991280,0sleep10-21swapper/100:36:531
12288280,0sleep1211rcuc/120:45:211
6609270,0sleep30-21swapper/320:35:143
319459973,3cyclictest31654-21apt-get21:35:113
319459973,3cyclictest275-21systemd-journal20:30:473
319459973,3cyclictest275-21systemd-journal00:15:253
319459973,3cyclictest1-21systemd22:05:183
319419977,0cyclictest0-21swapper/200:05:302
319419973,3cyclictest504-21dbus-daemon20:40:002
319419973,3cyclictest504-21dbus-daemon19:20:002
319419973,2cyclictest275-21systemd-journal00:27:242
319419971,3cyclictest504-21dbus-daemon22:45:002
319419970,1cyclictest51250irq/139-enp4s0-21:23:352
319389977,0cyclictest0-21swapper/122:25:191
319389976,1cyclictest11844-21ssh22:20:231
319389973,3cyclictest275-21systemd-journal22:08:261
319389973,3cyclictest12188-21awk22:40:181
319389971,2cyclictest275-21systemd-journal22:39:551
319379976,1cyclictest12-21ksoftirqd/023:45:010
319379976,1cyclictest12-21ksoftirqd/019:15:010
319379973,3cyclictest658-21snmpd00:36:360
319379972,4cyclictest0-21swapper/000:05:110
26842270,0sleep10-21swapper/121:50:411
319459963,2cyclictest729-21chrt23:50:263
319459963,2cyclictest663-21runrttasks22:19:293
319459963,2cyclictest658-21snmpd22:12:183
319459963,2cyclictest658-21snmpd21:26:523
319459963,2cyclictest658-21snmpd21:26:523
319459963,2cyclictest6386-21users19:20:173
319459963,2cyclictest504-21dbus-daemon22:00:553
319459963,2cyclictest27941-21ssh00:26:113
319459963,2cyclictest275-21systemd-journal19:36:293
319459963,2cyclictest26830-21ssh23:27:593
319459963,2cyclictest19347-21ssh23:42:493
319459963,2cyclictest17608-21ssh23:22:213
319459963,2cyclictest17608-21ssh23:22:213
319459963,2cyclictest1477-21chrt22:34:273
319459963,2cyclictest11239-21sh20:45:133
319459963,2cyclictest11052-21ssh21:22:263
319459962,3cyclictest8263-21cat23:55:143
319459962,3cyclictest658-21snmpd23:49:463
319459962,3cyclictest658-21snmpd22:56:303
319459962,3cyclictest658-21snmpd22:40:293
319459962,3cyclictest658-21snmpd21:15:123
319459962,3cyclictest658-21snmpd21:08:513
319459962,3cyclictest658-21snmpd20:51:113
319459962,3cyclictest658-21snmpd20:17:473
319459962,3cyclictest658-21snmpd20:12:143
319459962,3cyclictest658-21snmpd19:58:083
319459962,3cyclictest658-21snmpd19:50:253
319459962,3cyclictest658-21snmpd19:15:133
319459962,3cyclictest504-21dbus-daemon22:20:073
319459962,3cyclictest504-21dbus-daemon00:00:003
319459962,3cyclictest28928-21ssh21:52:153
319459962,3cyclictest25527-21cat20:05:153
319459962,3cyclictest24214-21find00:05:123
319459962,3cyclictest2376-21sed20:25:193
319459962,3cyclictest12895-21cat23:00:143
319459962,3cyclictest0-21swapper/323:34:183
319459962,2cyclictest18808-21df22:25:143
319459960,5cyclictest4822-21/usr/sbin/munin23:15:173
319459960,5cyclictest19435-21/usr/sbin/munin22:45:153
319459960,3cyclictest22898-21basename21:10:153
319419966,0cyclictest0-21swapper/222:05:132
319419965,1cyclictest29723-21/usr/sbin/munin23:10:172
319419963,2cyclictest9904-21cat20:40:182
319419963,2cyclictest9729-21ssh21:40:222
319419963,2cyclictest658-21snmpd23:38:482
319419963,2cyclictest658-21snmpd20:06:202
319419963,2cyclictest30700-21sh21:34:402
319419963,2cyclictest275-21systemd-journal00:20:002
319419963,2cyclictest27051-21sh21:50:482
319419963,2cyclictest23607-21rm23:25:322
319419963,2cyclictest13574-21cat23:20:112
319419963,2cyclictest13574-21cat23:20:112
319419963,2cyclictest13183-21ntp_offset23:00:162
319419963,1cyclictest0-21swapper/221:55:502
319419962,3cyclictest658-21snmpd23:43:522
319419962,3cyclictest658-21snmpd23:15:162
319419962,3cyclictest658-21snmpd22:49:262
319419962,3cyclictest658-21snmpd20:50:052
319419962,3cyclictest658-21snmpd20:23:042
319419962,3cyclictest658-21snmpd19:55:472
319419962,3cyclictest658-21snmpd00:35:502
319419962,3cyclictest3852-21expr20:30:112
319419962,3cyclictest275-21systemd-journal19:53:362
319419962,3cyclictest22622-21find20:00:112
319419962,3cyclictest17811-21cat21:00:132
319419962,3cyclictest16635-21cat19:45:152
319419962,1cyclictest28444-21perf23:10:012
319419962,1cyclictest0-21swapper/222:20:062
319419961,1cyclictest141rcu_preempt21:45:122
319419960,6cyclictest0-21swapper/221:39:192
319419960,6cyclictest0-21swapper/219:20:172
319389966,0cyclictest0-21swapper/122:46:011
319389966,0cyclictest0-21swapper/121:17:351
319389963,2cyclictest658-21snmpd21:28:241
319389963,2cyclictest658-21snmpd21:28:241
319389963,2cyclictest3962-21ssh23:52:541
319389963,2cyclictest30159-21sh23:49:321
319389963,2cyclictest29175-21ssh21:33:301
319389963,2cyclictest26584-21memory22:10:161
319389963,2cyclictest17254-21ssh23:22:041
319389963,2cyclictest17254-21ssh23:22:041
319389962,3cyclictest6769-21cat20:35:141
319389962,3cyclictest658-21snmpd23:31:221
319389962,3cyclictest658-21snmpd22:02:591
319389962,3cyclictest658-21snmpd21:35:281
319389962,3cyclictest658-21snmpd20:55:031
319389962,3cyclictest658-21snmpd20:08:401
319389962,3cyclictest658-21snmpd20:00:581
319389962,3cyclictest658-21snmpd19:42:041
319389962,3cyclictest658-21snmpd19:24:401
319389962,3cyclictest658-21snmpd00:24:041
319389962,3cyclictest658-21snmpd00:06:011
319389962,3cyclictest275-21systemd-journal20:33:161
319389962,3cyclictest27366-21expr22:30:131
319389962,3cyclictest2712-21wc19:15:121
319389962,3cyclictest2451-21cat22:15:171
319389962,3cyclictest22271-21cat21:10:121
319389962,3cyclictest17888-21expr21:00:131
319389962,3cyclictest14753-21kworker/1:219:25:131
319389962,3cyclictest1-21systemd20:20:181
319389962,2cyclictest674-21lldpd23:06:041
319389962,1cyclictest0-21swapper/123:40:321
319389960,6cyclictest0-21swapper/123:37:011
319389960,6cyclictest0-21swapper/123:19:331
319389960,6cyclictest0-21swapper/122:51:181
319389960,6cyclictest0-21swapper/121:41:031
319389960,6cyclictest0-21swapper/100:33:101
319389960,6cyclictest0-21swapper/100:02:451
319389960,5cyclictest275-21systemd-journal19:36:261
319389960,2cyclictest8613-21/usr/sbin/munin20:40:151
319389960,2cyclictest8016-21perf00:14:591
319389960,2cyclictest21565-21/usr/sbin/munin23:25:211
319389960,1cyclictest11255-21perf19:35:021
319379966,0cyclictest0-21swapper/022:46:510
319379963,2cyclictest658-21snmpd00:32:060
319379963,2cyclictest658-21snmpd00:00:370
319379963,2cyclictest504-21dbus-daemon23:00:000
319379963,2cyclictest28575-21sshd22:30:260
319379963,2cyclictest275-21systemd-journal23:37:250
319379963,2cyclictest275-21systemd-journal22:05:300
319379963,2cyclictest22199-21apt-get21:10:110
319379963,2cyclictest1211-21sh00:10:160
319379963,2cyclictest11214-21tr22:40:130
319379963,1cyclictest0-21swapper/023:05:560
319379962,3cyclictest890-21cat21:55:160
319379962,3cyclictest658-21snmpd23:45:250
319379962,3cyclictest658-21snmpd23:30:580
319379962,3cyclictest658-21snmpd23:26:340
319379962,3cyclictest658-21snmpd23:11:390
319379962,3cyclictest658-21snmpd21:50:590
319379962,3cyclictest658-21snmpd21:21:000
319379962,3cyclictest658-21snmpd21:03:080
319379962,3cyclictest658-21snmpd20:56:030
319379962,3cyclictest658-21snmpd20:44:420
319379962,3cyclictest658-21snmpd20:02:490
319379962,3cyclictest658-21snmpd19:58:190
319379962,3cyclictest658-21snmpd19:49:480
319379962,3cyclictest27553-21date22:50:010
319379962,3cyclictest275-21systemd-journal23:17:390
319379962,3cyclictest26137-21diskstats22:10:140
319379962,3cyclictest19610-21cut22:25:190
319379962,3cyclictest17947-21seq21:26:200
319379962,3cyclictest17947-21seq21:26:190
319379962,3cyclictest13419-21cat23:20:120
319379962,3cyclictest13419-21cat23:20:120
319379962,1cyclictest197192ssh00:21:140
319379962,1cyclictest0-21swapper/023:00:090
319379962,1cyclictest0-21swapper/022:21:030
319379962,1cyclictest0-21swapper/021:41:500
319379962,1cyclictest0-21swapper/021:32:070
319379960,3cyclictest5550-21perf20:35:010
319379960,3cyclictest3533-11brltty00:25:210
319379960,3cyclictest16851-21grep22:05:000
14277260,0sleep228-21ksoftirqd/222:03:032
319459952,2cyclictest953-21ssh00:30:103
319459952,2cyclictest8614-21acpi20:40:103
319459952,2cyclictest8013-21sort21:40:123
319459952,2cyclictest7025-21date19:25:013
319459952,2cyclictest658-21snmpd23:10:163
319459952,2cyclictest658-21snmpd21:45:043
319459952,2cyclictest501-21in:imuxsock19:46:053
319459952,2cyclictest32740-21cut19:10:143
319459952,2cyclictest2503-21ssh22:35:043
319459952,2cyclictest23043-21fschecks_count20:00:133
319459952,2cyclictest14608-21uname19:40:163
319459952,2cyclictest10303-21awk19:30:173
319459951,3cyclictest15954-21cat20:55:143
319459951,3cyclictest10169-21memory00:35:183
319419953,1cyclictest8050-21pmu-power19:25:172
319419953,1cyclictest27321-21cat20:10:142
319419953,1cyclictest21717-21diskmemload23:30:082
319419953,1cyclictest13798-21cpuspeed19:40:132
319419953,1cyclictest10812sleep220:25:002
319419952,2cyclictest7462-21sh23:55:112
319419952,2cyclictest658-21snmpd22:55:042
319419952,2cyclictest31482-21cat23:50:132
319419952,2cyclictest30313-21pmu-power20:15:172
319419952,2cyclictest26490-21ssh22:30:012
319419952,2cyclictest20134-21df_inode21:05:142
319419952,2cyclictest1742-21cat00:30:142
319419952,2cyclictest15675-21ssh00:00:032
319419952,2cyclictest12170-21cat19:35:162
319419952,1cyclictest0-21swapper/200:20:252
319419951,3cyclictest9442-21expr19:30:122
319419951,3cyclictest658-21snmpd22:25:062
319419951,3cyclictest32611-21tune2fs19:10:132
319419951,3cyclictest22200-21apt-get21:10:122
319419951,3cyclictest2120-21df_inode22:15:162
319419951,3cyclictest15970-21cat20:55:152
319419951,3cyclictest12059-21smart_sda20:45:182
319419951,1cyclictest0-21swapper/222:10:062
319389953,1cyclictest7632-21cat23:55:131
319389952,3cyclictest14753-21kworker/1:220:50:161
319389952,2cyclictest6779-21seq21:20:111
319389952,2cyclictest658-21snmpd23:10:061
319389952,2cyclictest658-21snmpd19:45:041
319389952,2cyclictest4079-21expr22:55:141
319389952,2cyclictest28194-21rt-features20:10:181
319389952,2cyclictest25200-21cat00:25:121
319389952,2cyclictest19952-21cat21:05:131
319389952,2cyclictest18837-21cat19:50:151
319389952,2cyclictest1376-21seq19:11:101
319389952,1cyclictest0-21swapper/121:55:131
319389951,3cyclictest29967-21cat20:15:141
319389951,3cyclictest21611-21/usr/sbin/munin19:55:201
319389951,3cyclictest1743-21diskstats20:25:131
319389950,2cyclictest275-21systemd-journal21:45:081
319379955,0cyclictest0-21swapper/019:20:110
319379954,1cyclictest12-21ksoftirqd/022:15:000
319379953,1cyclictest6305-21cstates20:35:130
319379953,1cyclictest13670-21hddtemp_smartct20:50:140
319379952,2cyclictest8814-21expr00:15:100
319379952,2cyclictest7262-21cat19:25:130
319379952,2cyclictest663-21runrttasks20:17:540
319379952,2cyclictest658-21snmpd21:05:080
319379952,2cyclictest658-21snmpd20:20:050
319379952,2cyclictest658-21snmpd20:05:070
319379952,2cyclictest275-21systemd-journal21:45:020
319379952,2cyclictest27193-21tr20:10:120
319379952,2cyclictest2163-21cat19:15:020
319379952,2cyclictest12787-21chrt20:49:490
319379952,2cyclictest11503-21apt-get19:35:130
319379951,3cyclictest658-21snmpd19:34:130
319379951,3cyclictest2122-21cat20:25:170
319379951,3cyclictest18851-21cat19:50:140
319379951,3cyclictest14859-21/usr/sbin/munin19:40:190
319379950,4cyclictest31574-21ssh21:35:100
319459940,3cyclictest31589-21/usr/sbin/munin20:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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