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2026-05-31 - 11:51
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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 Sun May 31, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129182301274,18sleep20-21swapper/219:08:282
130012270239,20sleep10-21swapper/119:09:321
126982267235,21sleep00-21swapper/019:05:530
127542263231,21sleep30-21swapper/319:06:373
233372640,0sleep00-21swapper/023:57:240
178132600,0sleep00-21swapper/021:18:070
59722590,0sleep30-21swapper/323:46:503
140182570,0sleep1211rcuc/122:14:381
248762540,0sleep10-21swapper/120:45:001
66892530,0sleep30-21swapper/322:10:123
71402520,0sleep10-21swapper/122:49:221
241312520,0sleep10-21swapper/123:19:091
161062520,0sleep30-21swapper/300:12:403
197442180,0sleep20-21swapper/222:36:532
13652180,0sleep10-21swapper/100:04:011
128502180,0sleep10-21swapper/123:31:191
252172170,1sleep20-21swapper/220:45:132
211132160,0sleep20-21swapper/200:15:202
308382150,0sleep10-21swapper/123:42:231
96632140,0sleep30-21swapper/321:13:173
55392140,0sleep20-21swapper/221:10:202
184212140,0sleep10-21swapper/122:35:531
109392140,0sleep10-21swapper/121:14:151
1315099110,8cyclictest0-21swapper/223:10:112
1314199110,5cyclictest31697-21ssh22:25:030
1315499103,2cyclictest8738-21awk22:30:173
22882290,0sleep10-21swapper/121:40:181
15805290,0sleep10-21swapper/121:16:351
131549993,1cyclictest14086-21ssh00:30:223
131549992,3cyclictest19397-21ls20:30:183
131549992,2cyclictest15156-21sh23:13:363
131549992,1cyclictest0-21swapper/323:25:393
131549991,2cyclictest275-21systemd-journal00:06:333
131549990,6cyclictest0-21swapper/323:35:253
131549990,4cyclictest30266-21ntpq21:25:183
13289280,0sleep20-21swapper/222:52:442
131549982,2cyclictest7116-21ssh23:08:483
131549982,2cyclictest658-21snmpd19:53:463
131549982,2cyclictest5185-21ssh21:49:513
131549982,2cyclictest30432-21ssh00:01:273
131549982,2cyclictest28802-21sh22:23:133
131549982,2cyclictest22352-21ssh22:58:203
131549982,2cyclictest17771-21ssh21:37:233
131549982,2cyclictest14009-21ssh22:53:163
131549982,2cyclictest0-21swapper/322:27:183
131549982,1cyclictest0-21swapper/322:45:143
131549981,3cyclictest658-21snmpd20:10:483
131509986,1cyclictest175122sleep223:54:192
131449987,1cyclictest22-21ksoftirqd/122:25:011
131449986,1cyclictest22-21ksoftirqd/120:00:011
131449986,1cyclictest22-21ksoftirqd/120:00:011
131449982,3cyclictest504-21dbus-daemon21:30:011
12019280,0sleep20-21swapper/220:15:142
131549973,3cyclictest4453-21cat00:25:153
131509975,2cyclictest28-21ksoftirqd/219:15:012
131509973,3cyclictest24302-21apt22:40:122
131509973,3cyclictest20237-21cut00:35:002
131509972,3cyclictest17676-21munin-run23:35:002
131509970,3cyclictest275-21systemd-journal22:21:142
131509970,1cyclictest0-21swapper/223:45:402
131449976,1cyclictest22-21ksoftirqd/100:10:001
131449973,3cyclictest504-21dbus-daemon21:40:001
131449973,3cyclictest275-21systemd-journal20:10:011
131449971,1cyclictest7718-21apt-get22:30:121
131449970,4cyclictest16266-21dump-pmu-power22:55:001
131419975,1cyclictest19050-21ntp_states20:30:150
131419974,2cyclictest24212-21systemd-udevd20:41:250
131419973,3cyclictest275-21systemd-journal19:39:300
131419972,3cyclictest275-21systemd-journal22:04:340
9785260,0sleep00-21swapper/021:13:230
26570260,0sleep30-21swapper/319:35:153
131549963,2cyclictest28905-21ntpq00:20:153
131549963,2cyclictest275-21systemd-journal21:03:063
131549963,2cyclictest26137-21ntpq23:00:193
131549963,2cyclictest25791-21ssh21:22:473
131549963,2cyclictest24206-21ssh22:40:083
131549963,2cyclictest23257-21cat22:00:173
131549963,2cyclictest22976-21ssh00:16:363
131549963,2cyclictest20436-21ssh00:35:063
131549963,2cyclictest17210-21ssh22:15:423
131549963,1cyclictest0-21swapper/323:31:073
131549962,3cyclictest6943-21acpi20:05:123
131549962,3cyclictest658-21snmpd23:40:123
131549962,3cyclictest658-21snmpd23:20:273
131549962,3cyclictest658-21snmpd21:15:193
131549962,3cyclictest658-21snmpd20:51:563
131549962,3cyclictest658-21snmpd19:43:453
131549962,3cyclictest658-21snmpd19:23:263
131549962,3cyclictest658-21snmpd19:17:173
131549962,3cyclictest491-21systemd-logind20:17:103
131549962,3cyclictest32393-21awk22:05:193
131549962,3cyclictest275-21systemd-journal19:34:563
131549962,3cyclictest2716-21expr19:55:153
131549962,3cyclictest24177-11brltty20:44:463
131549962,3cyclictest22766-21ntpq21:40:173
131549962,3cyclictest1795-11brltty20:00:503
131549962,3cyclictest1795-11brltty20:00:503
131549962,3cyclictest1663-21cat21:05:123
131549962,3cyclictest16413-21df22:35:133
131549962,3cyclictest12171-21sort23:50:213
131549962,1cyclictest0-21swapper/321:54:363
131549962,1cyclictest0-21swapper/321:30:593
131549961,3cyclictest275-21systemd-journal19:12:223
131549960,6cyclictest0-21swapper/323:17:083
131549960,3cyclictest19254-21expr23:55:143
131509966,0cyclictest0-21swapper/200:36:182
131509965,1cyclictest0-21swapper/223:20:012
131509963,2cyclictest9961-21sh21:52:092
131509963,2cyclictest30917-21sort22:05:112
131509963,2cyclictest30646-21sh23:42:152
131509963,2cyclictest27511-21cat20:50:112
131509963,2cyclictest21169-21sh23:16:522
131509963,1cyclictest0-21swapper/200:08:262
131509962,3cyclictest658-21snmpd23:08:062
131509962,3cyclictest658-21snmpd22:19:222
131509962,3cyclictest658-21snmpd22:10:492
131509962,3cyclictest658-21snmpd22:02:432
131509962,3cyclictest658-21snmpd21:46:222
131509962,3cyclictest658-21snmpd21:02:132
131509962,3cyclictest658-21snmpd20:56:042
131509962,3cyclictest658-21snmpd20:43:282
131509962,3cyclictest658-21snmpd20:26:122
131509962,3cyclictest658-21snmpd19:36:392
131509962,3cyclictest658-21snmpd00:11:342
131509962,3cyclictest658-21snmpd00:01:432
131509962,3cyclictest31654-11brltty22:47:112
131509962,3cyclictest29661-21seq19:42:062
131509962,3cyclictest18096-21wc19:15:182
131509962,3cyclictest13943-21awk21:15:222
131509962,3cyclictest13914-21fw_packets21:35:132
131509962,1cyclictest0-21swapper/222:27:092
131509962,1cyclictest0-21swapper/221:44:432
131509962,1cyclictest0-21swapper/221:27:552
131509960,0cyclictest0-21swapper/221:22:012
131509960,0cyclictest0-21swapper/219:30:242
131449965,1cyclictest22-21ksoftirqd/119:15:011
131449965,1cyclictest22-21ksoftirqd/119:15:011
131449963,2cyclictest658-21snmpd22:25:231
131449963,2cyclictest658-21snmpd20:50:191
131449963,2cyclictest5123-21ssh23:46:111
131449963,2cyclictest275-21systemd-journal22:56:201
131449963,2cyclictest26844-21open_inodes23:20:171
131449963,2cyclictest26328-21find23:00:191
131449963,2cyclictest24045-21sed20:40:191
131449962,3cyclictest7153-21grep21:50:181
131449962,3cyclictest658-21snmpd23:56:491
131449962,3cyclictest658-21snmpd23:35:371
131449962,3cyclictest658-21snmpd21:33:021
131449962,3cyclictest658-21snmpd21:00:041
131449962,3cyclictest658-21snmpd20:35:011
131449962,3cyclictest658-21snmpd20:30:541
131449962,3cyclictest658-21snmpd19:30:021
131449962,3cyclictest658-21snmpd00:38:441
131449962,3cyclictest658-21snmpd00:27:331
131449962,3cyclictest30010-21awk21:45:131
131449962,3cyclictest275-21systemd-journal00:15:321
131449962,1cyclictest0-21swapper/123:50:141
131449962,1cyclictest0-21swapper/122:44:421
131449961,4cyclictest1541-21rm23:25:111
131449960,5cyclictest428-21rm22:05:371
131449960,5cyclictest24115-21taskset21:21:321
131449960,5cyclictest22930-21taskset19:26:341
131449960,5cyclictest18348-21rm22:16:361
131449960,5cyclictest1543-21/usr/sbin/munin21:05:111
131449960,3cyclictest148592rm23:13:221
131449960,2cyclictest3530-21diskmemload23:05:191
131419966,0cyclictest0-21swapper/022:22:160
131419966,0cyclictest0-21swapper/022:18:390
131419966,0cyclictest0-21swapper/020:45:240
131419965,1cyclictest29070-21ssh00:00:240
131419963,2cyclictest8052-21rm00:27:200
131419963,2cyclictest658-21snmpd22:54:020
131419963,2cyclictest658-21snmpd00:08:460
131419963,2cyclictest504-21dbus-daemon20:35:060
131419963,2cyclictest504-21dbus-daemon19:51:100
131419963,2cyclictest472-21cat22:45:130
131419963,2cyclictest275-21systemd-journal20:11:460
131419963,2cyclictest2508-21ssh21:28:250
131419963,2cyclictest24177-11brltty21:00:110
131419963,2cyclictest13782-21diskstats21:35:120
131419963,2cyclictest11409-21ssh21:53:150
131419963,1cyclictest0-21swapper/000:37:290
131419963,1cyclictest0-21swapper/000:21:030
131419962,3cyclictest658-21snmpd23:45:190
131419962,3cyclictest658-21snmpd23:43:280
131419962,3cyclictest658-21snmpd23:36:090
131419962,3cyclictest658-21snmpd23:06:360
131419962,3cyclictest658-21snmpd22:57:200
131419962,3cyclictest658-21snmpd22:35:020
131419962,3cyclictest658-21snmpd22:12:520
131419962,3cyclictest658-21snmpd21:59:310
131419962,3cyclictest658-21snmpd21:08:040
131419962,3cyclictest658-21snmpd20:27:330
131419962,3cyclictest658-21snmpd20:21:090
131419962,3cyclictest658-21snmpd19:26:230
131419962,3cyclictest3547-21cat19:55:190
131419962,3cyclictest31526-21cat22:05:140
131419962,3cyclictest31231-21proc_pri19:45:180
131419962,3cyclictest304-21systemd-udevd20:01:350
131419962,3cyclictest304-21systemd-udevd20:01:350
131419962,3cyclictest26247-21tune2fs23:20:140
131419962,3cyclictest25955-21cat23:00:160
131419962,3cyclictest22420-21cat21:40:140
131419962,3cyclictest17276-21tune2fs19:15:140
131419962,3cyclictest14985-21ls19:10:190
131419962,3cyclictest11365-21cat23:50:160
131419962,3cyclictest10591-21cat23:30:140
131419962,3cyclictest0-21swapper/023:28:120
131419962,3cyclictest0-21swapper/022:40:010
131419962,3cyclictest0-21swapper/021:32:550
131419962,1cyclictest0-21swapper/000:30:510
131419961,4cyclictest30147-21sort21:45:140
131419960,6cyclictest0-21swapper/021:21:580
131419960,6cyclictest0-21swapper/000:17:440
131419960,6cyclictest0-21swapper/000:10:080
131549953,1cyclictest30122-21hddtemp_smartct20:55:153
131549953,1cyclictest16354-21rm21:55:413
131549952,2cyclictest25304-21expr20:45:143
131549952,2cyclictest20338-21cpu20:35:133
131549951,3cyclictest30154-21find19:45:113
131549951,3cyclictest21246-21/usr/sbin/munin19:25:153
131549951,3cyclictest15986-21ls20:25:133
131549951,3cyclictest13914-21expr20:20:123
131509955,0cyclictest0-21swapper/223:00:032
131509953,1cyclictest16984-21cstates22:55:132
131509952,2cyclictest9727-21expr20:10:132
131509952,2cyclictest658-21snmpd19:55:512
131509952,2cyclictest51250irq/139-enp4s0-22:30:162
131509952,2cyclictest4836-21ssh21:30:012
131509952,2cyclictest4661-21cat20:00:012
131509952,2cyclictest4661-21cat20:00:012
131509952,2cyclictest4316-21head00:25:142
131509952,2cyclictest30569-21entropy19:45:132
131509952,2cyclictest2274-21ssh23:25:152
131509952,2cyclictest20455-21cut20:35:142
131509952,2cyclictest19853-21sshd20:32:332
131509952,2cyclictest19532-21sh23:55:152
131509952,2cyclictest19299-21cat19:20:122
131509952,2cyclictest13940-21expr20:20:122
131509952,2cyclictest1-21systemd19:50:202
131509951,3cyclictest658-21snmpd00:20:052
131509951,3cyclictest275-21systemd-journal20:05:062
131509951,3cyclictest2242-21cat21:05:142
131509951,3cyclictest21940-21cat19:25:142
131509951,3cyclictest15478-21/usr/sbin/munin21:55:172
131509950,4cyclictest18392-21cstates23:35:132
131449954,1cyclictest22-21ksoftirqd/119:40:011
131449953,1cyclictest29734-21wc20:55:131
131449953,1cyclictest15440-21sendmail_mailtr21:55:161
131449953,1cyclictest11915-21gpgv00:30:001
131449952,2cyclictest9962-21cat20:10:151
131449952,2cyclictest658-21snmpd19:45:061
131449952,2cyclictest658-21snmpd19:20:021
131449952,2cyclictest28199-21expr19:40:121
131449952,2cyclictest275-21systemd-journal19:50:201
131449952,2cyclictest16554-21cat20:25:151
131449952,2cyclictest11597-21cstates20:15:121
131449951,3cyclictest658-21snmpd00:10:071
131449951,3cyclictest22912-21expr22:00:141
131449951,3cyclictest2203-21apt19:55:111
131449951,3cyclictest14052-21cat20:20:141
131449951,1cyclictest0-21swapper/100:20:101
131419952,2cyclictest658-21snmpd22:30:020
131419952,2cyclictest29579-21awk20:55:120
131419952,2cyclictest20099-21proc_pri19:20:170
131419952,2cyclictest12804-21cat20:15:190
131419952,2cyclictest0-21swapper/023:15:040
131419952,1cyclictest827-21sshd20:52:220
131419951,3cyclictest9899-21/usr/sbin/munin23:10:140
131419951,3cyclictest7637-21cat20:05:160
131419951,3cyclictest28107-21expr19:40:120
131419951,3cyclictest23472-21/usr/sbin/munin19:30:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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