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2026-07-30 - 10:34
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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 Thu Jul 30, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183922307277,20sleep20-21swapper/219:05:552
183762285259,17sleep10-21swapper/119:05:411
167542271239,21sleep00-21swapper/019:05:030
184242261231,19sleep30-21swapper/319:06:203
99372680,0sleep30-21swapper/322:28:213
221692650,0sleep00-21swapper/000:32:550
153282620,0sleep30-21swapper/323:30:113
160912610,0sleep10-21swapper/121:13:541
192942190,0sleep20-21swapper/222:14:392
299702180,0sleep00-21swapper/023:39:100
288292180,0sleep20-21swapper/220:40:162
118242180,0sleep00-21swapper/023:47:150
92322170,0chrt0-21swapper/223:06:442
39952170,0sleep30-21swapper/323:42:323
194742170,0sleep00-21swapper/020:20:120
233762160,0sleep10-21swapper/100:14:131
133012160,0sleep20-21swapper/222:50:112
168562150,1sleep30-21swapper/321:34:033
201742140,0sleep10-21swapper/123:13:351
80302130,0sleep19273-21diskmemload23:25:161
272352130,0sleep10-21swapper/119:25:161
236112130,0sleep30-21swapper/320:30:013
51292120,0sleep00-21swapper/021:26:230
280152120,0sleep20-21swapper/220:40:002
146982120,0sleep10-21swapper/122:11:051
1884099108,1cyclictest221ksoftirqd/119:15:001
23366290,3sleep012-21ksoftirqd/023:54:500
188479996,2cyclictest34-21ksoftirqd/319:15:013
188409990,8cyclictest19531-21chrt23:51:521
30497280,0sleep10-21swapper/123:39:351
24451280,0sleep30-21swapper/321:19:013
19765280,0sleep10-21swapper/122:53:581
188439984,2cyclictest275-21systemd-journal22:32:022
188409985,2cyclictest22-21ksoftirqd/119:55:001
188409983,2cyclictest9886-21awk21:30:001
29517270,0sleep10-21swapper/119:30:161
188479976,1cyclictest7345-21rm22:45:423
188479976,1cyclictest34-21ksoftirqd/320:45:003
188479975,1cyclictest34-21ksoftirqd/323:50:003
188479975,1cyclictest16719-21ssh22:32:133
188479973,3cyclictest658-21snmpd21:02:153
188479973,3cyclictest4343-21smart_sda21:45:203
188479973,1cyclictest0-21swapper/322:36:583
188479972,4cyclictest658-21snmpd23:10:293
188439974,2cyclictest658-21snmpd21:16:232
188439973,3cyclictest658-21snmpd19:15:462
188439973,3cyclictest275-21systemd-journal23:40:002
188439973,3cyclictest275-21systemd-journal22:05:072
188439973,3cyclictest275-21systemd-journal20:55:002
188439973,3cyclictest275-21systemd-journal19:42:152
188439973,1cyclictest0-21swapper/223:51:542
188409973,3cyclictest674-21lldpd00:24:411
188409973,3cyclictest29673-21sshd23:58:101
188409973,3cyclictest23646-21sshd19:17:361
188409973,1cyclictest5120-21dump-pmu-power19:50:001
188409970,5cyclictest275-21systemd-journal21:22:191
188369973,3cyclictest504-21dbus-daemon23:18:440
188369973,3cyclictest275-21systemd-journal19:29:320
188369973,2cyclictest275-21systemd-journal22:47:330
188369972,3cyclictest7177-21dump-pmu-power23:45:010
188369972,3cyclictest275-21systemd-journal22:20:460
188369970,6cyclictest15797-21sshd21:52:340
1855270,0sleep20-21swapper/222:42:492
32398260,0sleep0131rcuc/023:00:570
31578260,0sleep20-21swapper/200:38:492
188479966,0cyclictest0-21swapper/323:22:093
188479966,0cyclictest0-21swapper/322:24:043
188479964,1cyclictest29394-21sh22:40:133
188479964,1cyclictest28012-21perf20:40:013
188479964,1cyclictest20669-21diskstats22:15:143
188479963,2cyclictest9147-21cat00:25:123
188479963,2cyclictest4607-21ssh21:25:593
188479963,2cyclictest24673-21rm22:56:233
188479963,2cyclictest23991-21cstates20:30:133
188479963,2cyclictest1408-21ssh23:02:053
188479963,2cyclictest13194-21ssh21:11:403
188479963,1cyclictest0-21swapper/322:01:053
188479962,3cyclictest7746-21expr23:25:153
188479962,3cyclictest674-21lldpd20:24:423
188479962,3cyclictest658-21snmpd21:41:073
188479962,3cyclictest658-21snmpd21:35:343
188479962,3cyclictest658-21snmpd20:47:273
188479962,3cyclictest658-21snmpd19:36:023
188479962,3cyclictest658-21snmpd19:16:103
188479962,3cyclictest658-21snmpd00:15:243
188479962,3cyclictest504-21dbus-daemon23:55:003
188479962,3cyclictest275-21systemd-journal00:09:203
188479962,3cyclictest20163-21cat21:55:143
188479962,3cyclictest1707-21grep20:50:193
188479962,3cyclictest12864-21sed21:50:173
188479962,1cyclictest0-21swapper/322:13:473
188479962,1cyclictest0-21swapper/321:21:453
188479962,1cyclictest0-21swapper/300:35:563
188479961,4cyclictest0-21swapper/300:30:143
188479960,6cyclictest0-21swapper/322:51:213
188479960,5cyclictest275-21systemd-journal23:08:443
188479960,2cyclictest3727-21/usr/sbin/munin22:05:123
188479960,0cyclictest0-21swapper/323:15:183
188439966,0cyclictest0-21swapper/223:11:242
188439966,0cyclictest0-21swapper/221:30:212
188439965,1cyclictest0-21swapper/221:55:122
188439964,1cyclictest215532sleep220:25:122
188439963,2cyclictest658-21snmpd20:56:162
188439963,2cyclictest504-21dbus-daemon22:45:202
188439963,2cyclictest28511-21acpi22:20:132
188439963,2cyclictest28-21ksoftirqd/219:25:012
188439963,2cyclictest275-21systemd-journal23:01:392
188439963,2cyclictest2720-21ssh23:22:242
188439963,2cyclictest23962-21sh22:55:502
188439963,2cyclictest22123-21ssh22:15:272
188439963,2cyclictest20841-21cpu22:35:132
188439963,2cyclictest1614-21ssh00:00:222
188439963,2cyclictest10196-21diskstats21:10:152
188439963,1cyclictest0-21swapper/200:20:012
188439963,1cyclictest0-21swapper/200:12:102
188439962,3cyclictest658-21snmpd23:46:212
188439962,3cyclictest658-21snmpd23:43:112
188439962,3cyclictest658-21snmpd23:28:432
188439962,3cyclictest658-21snmpd21:35:372
188439962,3cyclictest658-21snmpd20:32:072
188439962,3cyclictest658-21snmpd20:20:342
188439962,3cyclictest658-21snmpd20:10:242
188439962,3cyclictest658-21snmpd19:58:202
188439962,3cyclictest658-21snmpd19:58:202
188439962,3cyclictest658-21snmpd19:31:502
188439962,3cyclictest658-21snmpd19:26:592
188439962,3cyclictest658-21snmpd00:32:572
188439962,3cyclictest3653-21hostname21:45:152
188439962,3cyclictest32637-21date00:20:002
188439962,3cyclictest31079-21systemd-udevd23:59:152
188439962,3cyclictest275-21systemd-journal23:18:182
188439962,3cyclictest18049-21ntp_states20:15:182
188439962,3cyclictest15792-21cat23:30:132
188439962,1cyclictest0-21swapper/221:51:442
188439962,1cyclictest0-21swapper/221:20:262
188439960,6cyclictest13499-21ssh00:27:332
188439960,6cyclictest0-21swapper/221:41:472
188439960,6cyclictest0-21swapper/221:25:332
188409963,2cyclictest658-21snmpd20:23:211
188409963,2cyclictest658-21snmpd00:07:531
188409963,2cyclictest4988-21rm22:45:061
188409963,2cyclictest32594-21ssh23:20:251
188409963,2cyclictest31990-21tr23:40:101
188409963,2cyclictest29956-21expr22:20:201
188409963,2cyclictest28233-21awk21:40:181
188409963,2cyclictest23282-21sh22:35:571
188409963,1cyclictest0-21swapper/122:01:071
188409963,1cyclictest0-21swapper/121:52:371
188409963,1cyclictest0-21swapper/100:19:591
188409962,3cyclictest9918-21ntpq00:25:151
188409962,3cyclictest658-21snmpd23:45:361
188409962,3cyclictest658-21snmpd23:31:111
188409962,3cyclictest658-21snmpd23:18:401
188409962,3cyclictest658-21snmpd22:18:541
188409962,3cyclictest658-21snmpd21:59:221
188409962,3cyclictest658-21snmpd21:36:221
188409962,3cyclictest658-21snmpd20:18:541
188409962,3cyclictest658-21snmpd20:00:391
188409962,3cyclictest5359-21ntpq22:25:161
188409962,3cyclictest504-21dbus-daemon22:30:181
188409962,3cyclictest28261-21find20:40:131
188409962,3cyclictest275-21systemd-journal19:40:001
188409962,3cyclictest25967-21cat20:35:001
188409962,2cyclictest275-21systemd-journal20:13:281
188409960,6cyclictest0-21swapper/121:05:161
188409960,3cyclictest32351-40systemctl00:00:001
188369966,0cyclictest0-21swapper/021:57:010
188369963,2cyclictest658-21snmpd23:05:220
188369963,2cyclictest658-21snmpd21:47:150
188369963,2cyclictest658-21snmpd00:13:080
188369963,2cyclictest5187-21cut21:00:130
188369963,2cyclictest504-21dbus-daemon20:35:030
188369963,2cyclictest31943-21grep23:20:180
188369963,2cyclictest29776-21expr22:40:150
188369963,2cyclictest27724-21ssh00:35:500
188369963,2cyclictest275-21systemd-journal21:40:200
188369963,2cyclictest275-21systemd-journal19:56:170
188369963,2cyclictest275-21systemd-journal19:56:170
188369963,2cyclictest275-21systemd-journal00:10:000
188369963,2cyclictest19122-21grep21:35:130
188369963,2cyclictest17682-21rm22:52:210
188369963,2cyclictest15898-21ssh21:33:190
188369963,2cyclictest14598-21cat20:09:560
188369963,2cyclictest10499-21if_enp4s021:10:150
188369963,1cyclictest0-21swapper/022:32:160
188369963,1cyclictest0-21swapper/021:16:270
188369963,1cyclictest0-21swapper/000:02:230
188369962,3cyclictest8348-21which21:05:180
188369962,3cyclictest658-21snmpd22:38:220
188369962,3cyclictest658-21snmpd20:41:280
188369962,3cyclictest658-21snmpd20:01:540
188369962,3cyclictest658-21snmpd19:36:370
188369962,3cyclictest658-21snmpd19:21:080
188369962,3cyclictest658-21snmpd00:24:440
188369962,3cyclictest2964-21tune2fs20:55:130
188369962,3cyclictest275-21systemd-journal22:07:010
188369962,3cyclictest19722-21cat19:10:160
188369962,3cyclictest15747-21cat23:30:140
188369962,1cyclictest0-21swapper/023:56:410
188369960,6cyclictest20254-21ssh23:13:380
188369960,6cyclictest0-21swapper/023:26:100
188369960,6cyclictest0-21swapper/021:20:550
188369960,4cyclictest32578-21turbostat00:19:590
188369960,3cyclictest12256-21cstates22:10:120
1578260,0sleep10-21swapper/122:42:371
188479953,1cyclictest3912-21cat19:45:153
188479952,2cyclictest789-21dpkg19:40:023
188479952,2cyclictest658-21snmpd20:00:023
188479952,2cyclictest658-21snmpd19:55:203
188479952,2cyclictest658-21snmpd19:55:203
188479952,2cyclictest658-21snmpd19:30:053
188479952,2cyclictest658-21snmpd19:20:073
188479952,2cyclictest615-21ssh00:20:103
188479952,2cyclictest275-21systemd-journal19:53:473
188479952,2cyclictest23162-21sh23:35:043
188479952,2cyclictest18351-21sort20:15:193
188479952,2cyclictest15827-21find23:50:113
188479952,2cyclictest14839-21chrt20:10:023
188479952,2cyclictest12945-21expr20:05:133
188479952,1cyclictest26549-21expr19:25:123
188479951,3cyclictest658-21snmpd00:00:023
188479951,3cyclictest16791-21ls00:10:133
188479950,3cyclictest275-21systemd-journal21:08:313
188479950,3cyclictest275-21systemd-journal20:55:083
188439953,1cyclictest5482-21which22:25:172
188439952,2cyclictest9497-21cut00:05:202
188439952,2cyclictest7632-21latency_hist19:55:012
188439952,2cyclictest7558-21cat21:05:142
188439952,2cyclictest658-21snmpd20:45:002
188439952,2cyclictest658-21snmpd19:45:142
188439952,2cyclictest5454-21cat21:00:152
188439952,2cyclictest32366-21seq19:35:242
188439952,2cyclictest27649-21dpkg22:00:022
188439952,2cyclictest12718-21cat20:05:132
188439951,3cyclictest19973-21ntpq19:10:162
188439951,3cyclictest11780-21cat20:00:192
188409953,1cyclictest7868-21/usr/sbin/munin19:55:141
188409953,1cyclictest7868-21/usr/sbin/munin19:55:131
188409953,1cyclictest17823-21sh21:15:051
188409952,2cyclictest658-21snmpd23:00:191
188409952,2cyclictest658-21snmpd20:50:401
188409952,2cyclictest658-21snmpd20:35:001
188409952,2cyclictest658-21snmpd20:26:391
188409952,2cyclictest658-21snmpd20:06:241
188409952,2cyclictest658-21snmpd19:40:321
188409952,2cyclictest6142-21entropy23:05:141
188409952,2cyclictest5671-21grep21:00:161
188409952,2cyclictest3126-21grep21:45:141
188409952,2cyclictest30735-21expr20:45:131
188409952,2cyclictest25606-21unixbench_multi19:20:201
188409952,2cyclictest25372-21acpi00:35:131
188409952,2cyclictest21617-21ssh22:55:141
188409952,2cyclictest17517-21expr00:30:141
188409952,2cyclictest10911-21grep21:30:131
188409951,3cyclictest658-21snmpd20:55:011
188409951,3cyclictest4165-21/usr/sbin/munin22:05:121
188369953,1cyclictest5663-21sort19:50:140
188369953,1cyclictest28835-21expr19:30:120
188369952,2cyclictest658-21snmpd20:50:130
188369952,2cyclictest658-21snmpd20:11:470
188369952,2cyclictest658-21snmpd19:40:050
188369952,2cyclictest4721-21/usr/sbin/munin22:25:130
188369952,2cyclictest3254-21cat19:45:120
188369952,2cyclictest31030-21tail20:45:150
188369952,2cyclictest30034-21chrt22:00:350
188369952,2cyclictest21570-21fschecks_count19:15:020
188369952,2cyclictest17366-21expr20:15:120
188369952,2cyclictest10345-21grep00:25:180
188369951,3cyclictest24475-21cat20:30:140
188369950,4cyclictest20164-21ssh22:15:090
188369950,4cyclictest0-21swapper/022:55:150
188369942,1cyclictest21567-21cat20:25:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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