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2026-05-13 - 11:10
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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 highest latencies:
System rackaslot8.osadl.org (updated Wed May 13, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132482314285,19sleep20-21swapper/219:05:462
135902268241,17sleep10-21swapper/119:09:551
134842268237,21sleep00-21swapper/019:08:350
134042261229,21sleep30-21swapper/319:07:323
75402600,0sleep10-21swapper/123:07:161
5812600,0sleep10-21swapper/122:05:161
6942590,0sleep00-21swapper/021:45:410
236582590,0sleep00-21swapper/023:36:210
254472580,0sleep00-21swapper/021:41:120
261062570,0sleep20-21swapper/200:17:192
41122180,0sleep20-21swapper/222:26:242
141862180,0sleep30-21swapper/323:50:173
314702150,0sleep10-21swapper/123:21:281
21852110,0sleep20-21swapper/200:22:332
1373399119,2cyclictest28-21ksoftirqd/222:10:012
30742280,0sleep00-21swapper/021:25:180
23360280,0sleep00-21swapper/022:19:010
15037280,0sleep10-21swapper/119:10:181
137389986,1cyclictest34-21ksoftirqd/322:15:013
137389986,1cyclictest34-21ksoftirqd/300:00:003
27078270,0sleep20-21swapper/222:20:282
19053270,0sleep30-21swapper/300:32:543
137389976,1cyclictest34-21ksoftirqd/323:45:003
137389974,2cyclictest275-21systemd-journal00:16:393
137389974,2cyclictest20743-21irqstats23:15:163
137389973,3cyclictest24911-21systemctl22:00:203
137389973,2cyclictest275-21systemd-journal22:52:393
137339973,3cyclictest658-21snmpd22:12:432
137339971,3cyclictest5011-21grep00:05:002
137339970,1cyclictest12164-21/usr/sbin/munin20:15:142
137259973,3cyclictest658-21snmpd21:17:291
137259971,3cyclictest5008-21ls00:05:001
137209974,2cyclictest1029-21memory19:50:160
137209973,3cyclictest658-21snmpd23:19:210
137209973,3cyclictest658-21snmpd21:10:110
137209973,3cyclictest275-21systemd-journal22:47:440
137209971,3cyclictest23199-21munin-run19:30:010
137209970,7cyclictest20510-21ssh00:14:200
137389966,0cyclictest0-21swapper/322:28:163
137389965,1cyclictest34-21ksoftirqd/319:40:013
137389964,2cyclictest34-21ksoftirqd/320:10:003
137389964,1cyclictest34-21ksoftirqd/322:45:013
137389963,2cyclictest8329-21ssh00:06:133
137389963,2cyclictest7459-21ssh23:46:023
137389963,2cyclictest658-21snmpd22:33:273
137389963,2cyclictest5644-21ssh22:08:383
137389963,2cyclictest560-21gdbus00:36:193
137389963,2cyclictest5458-21sh23:05:393
137389963,2cyclictest504-21dbus-daemon21:45:003
137389963,2cyclictest31388-21sh23:02:043
137389963,2cyclictest31158-21cat21:45:143
137389963,2cyclictest275-21systemd-journal21:14:383
137389963,2cyclictest275-21systemd-journal20:54:213
137389963,2cyclictest275-21systemd-journal19:32:053
137389963,2cyclictest275-21systemd-journal00:13:233
137389963,2cyclictest18965-21sh22:55:123
137389963,2cyclictest14705-21awk21:15:213
137389963,2cyclictest11433-21ssh21:52:313
137389962,3cyclictest795-21sshd23:22:483
137389962,3cyclictest658-21snmpd23:30:583
137389962,3cyclictest658-21snmpd22:21:203
137389962,3cyclictest658-21snmpd21:01:593
137389962,3cyclictest658-21snmpd20:00:423
137389962,3cyclictest658-21snmpd19:51:543
137389962,3cyclictest658-21snmpd19:49:453
137389962,3cyclictest658-21snmpd19:41:063
137389962,3cyclictest658-21snmpd19:27:023
137389962,3cyclictest504-21dbus-daemon21:23:323
137389962,3cyclictest14481-21expr20:20:153
137389962,2cyclictest3945-1kworker/u9:222:40:173
137389962,2cyclictest29435-40rsyslog-rotate00:00:003
137389960,6cyclictest0-21swapper/323:39:583
137389960,6cyclictest0-21swapper/323:10:503
137389960,6cyclictest0-21swapper/321:36:243
137389960,6cyclictest0-21swapper/321:30:393
137389960,5cyclictest7249-21grep00:25:203
137389960,3cyclictest31225-21awk20:55:183
137389960,0cyclictest0-21swapper/319:55:153
137339966,0cyclictest0-21swapper/222:45:222
137339963,2cyclictest8041-21gzip20:05:172
137339963,2cyclictest658-21snmpd21:56:342
137339963,2cyclictest30862-21ssh23:01:402
137339963,2cyclictest275-21systemd-journal21:12:232
137339963,2cyclictest26312-21taskset22:59:362
137339963,2cyclictest25639-21sh22:00:342
137339963,2cyclictest24388-21ntpq19:30:172
137339963,2cyclictest23514-21diskstats20:40:142
137339963,2cyclictest22894-21ssh23:16:162
137339963,2cyclictest21271-21diskstats20:35:122
137339963,2cyclictest16957-21ssh00:11:332
137339963,2cyclictest13174-21sh22:50:572
137339962,3cyclictest658-21snmpd23:37:332
137339962,3cyclictest658-21snmpd23:30:302
137339962,3cyclictest658-21snmpd22:41:112
137339962,3cyclictest658-21snmpd22:35:172
137339962,3cyclictest658-21snmpd21:21:512
137339962,3cyclictest658-21snmpd20:11:212
137339962,3cyclictest658-21snmpd19:45:092
137339962,3cyclictest658-21snmpd19:27:112
137339962,3cyclictest658-21snmpd19:11:572
137339962,3cyclictest658-21snmpd00:39:192
137339962,3cyclictest658-21snmpd00:33:342
137339962,3cyclictest5589-21sed21:30:012
137339962,3cyclictest275-21systemd-journal23:12:492
137339962,3cyclictest275-21systemd-journal19:37:032
137339962,3cyclictest25588-21expr20:45:122
137339962,3cyclictest13411-21expr23:50:122
137339962,3cyclictest10039-21cat22:30:132
137339962,2cyclictest275-21systemd-journal22:19:262
137339962,1cyclictest0-21swapper/223:20:192
137339961,4cyclictest22054-21cron21:39:592
137339960,6cyclictest0-21swapper/221:40:522
137339960,6cyclictest0-21swapper/200:28:192
137339960,5cyclictest22435-21ntpq23:55:162
137259966,0cyclictest0-21swapper/121:50:041
137259965,1cyclictest22-21ksoftirqd/119:40:011
137259965,1cyclictest22-21ksoftirqd/100:15:001
137259963,2cyclictest658-21snmpd21:35:081
137259963,2cyclictest658-21snmpd00:19:131
137259963,2cyclictest6342-21wc23:45:191
137259963,2cyclictest504-21dbus-daemon21:09:461
137259963,2cyclictest394-21ssh21:45:301
137259963,2cyclictest31236-21sh23:01:581
137259963,2cyclictest29147-21ssh22:41:221
137259963,2cyclictest28912-21ssh22:03:041
137259963,2cyclictest24533-21sh21:40:301
137259963,2cyclictest19104-21sh23:34:121
137259963,2cyclictest16659-21head20:25:151
137259963,2cyclictest15159-21grep20:20:191
137259963,1cyclictest0-21swapper/121:21:571
137259962,3cyclictest7596-21cat20:05:141
137259962,3cyclictest658-21snmpd23:55:071
137259962,3cyclictest658-21snmpd23:42:061
137259962,3cyclictest658-21snmpd23:37:271
137259962,3cyclictest658-21snmpd23:28:121
137259962,3cyclictest658-21snmpd22:27:531
137259962,3cyclictest658-21snmpd22:17:131
137259962,3cyclictest658-21snmpd22:13:431
137259962,3cyclictest658-21snmpd21:56:041
137259962,3cyclictest658-21snmpd21:34:561
137259962,3cyclictest658-21snmpd20:58:591
137259962,3cyclictest658-21snmpd20:36:011
137259962,3cyclictest658-21snmpd20:16:511
137259962,3cyclictest658-21snmpd19:48:071
137259962,3cyclictest658-21snmpd19:34:231
137259962,3cyclictest275-21systemd-journal21:05:011
137259962,3cyclictest23799-21cat20:40:161
137259962,3cyclictest21478-21date23:15:211
137259962,3cyclictest19670-21cat19:20:161
137259962,3cyclictest15151-21ntpq00:30:191
137259962,3cyclictest14728-21awk23:50:201
137259962,1cyclictest0-21swapper/123:10:101
137259960,6cyclictest0-21swapper/122:21:281
137259960,6cyclictest0-21swapper/121:11:551
137259960,2cyclictest19168-21grep22:55:131
137259960,0cyclictest0-21swapper/122:31:121
137259960,0cyclictest0-21swapper/100:37:081
137209963,2cyclictest760-21ssh23:22:470
137209963,2cyclictest658-21snmpd20:25:190
137209963,2cyclictest658-21snmpd20:09:210
137209963,2cyclictest658-21snmpd00:30:250
137209963,2cyclictest32388-21cron19:50:000
137209963,2cyclictest27553-21ssh23:58:460
137209963,2cyclictest26158-21needreboot22:20:170
137209963,2cyclictest24532-21sh21:21:290
137209963,2cyclictest23467-21rm22:00:060
137209963,2cyclictest15694-21cat21:35:190
137209963,2cyclictest12862-21fschecks_count23:30:130
137209963,1cyclictest0-21swapper/000:23:390
137209962,3cyclictest658-21snmpd23:50:040
137209962,3cyclictest658-21snmpd23:46:540
137209962,3cyclictest658-21snmpd23:27:360
137209962,3cyclictest658-21snmpd23:06:120
137209962,3cyclictest658-21snmpd22:08:010
137209962,3cyclictest658-21snmpd20:46:380
137209962,3cyclictest658-21snmpd20:43:320
137209962,3cyclictest658-21snmpd19:55:540
137209962,3cyclictest658-21snmpd19:15:590
137209962,3cyclictest658-21snmpd19:15:590
137209962,3cyclictest658-21snmpd00:39:550
137209962,3cyclictest658-21snmpd00:25:250
137209962,3cyclictest658-21snmpd00:01:340
137209962,3cyclictest6555-11brltty20:15:300
137209962,3cyclictest275-21systemd-journal19:37:040
137209962,3cyclictest18326-21head22:35:150
137209962,3cyclictest1727-21cat22:25:150
137209962,3cyclictest16694-21cat21:55:200
137209962,3cyclictest14584-21cat20:20:150
137209962,3cyclictest13704-21cat21:15:160
137209962,2cyclictest275-21systemd-journal23:02:460
137209962,1cyclictest0-21swapper/022:42:160
137209960,6cyclictest0-21swapper/022:58:550
137209960,6cyclictest0-21swapper/022:30:540
137209960,6cyclictest0-21swapper/021:30:010
137209960,5cyclictest7432-21gltestperf21:50:150
137209960,4cyclictest275-21systemd-journal22:15:010
137389953,1cyclictest30632-21grep21:25:173
137389952,2cyclictest30350-21expr00:20:123
137389952,2cyclictest2802-21cat21:05:143
137389952,2cyclictest21552-21cat20:35:133
137389952,2cyclictest19086-21ssh22:35:213
137389952,2cyclictest16848-21cat19:15:143
137389952,2cyclictest16848-21cat19:15:133
137389952,2cyclictest16792-21cat20:25:163
137389952,2cyclictest12688-21head20:15:183
137389951,3cyclictest9882-21fschecks_count20:10:153
137389951,3cyclictest23396-21expr20:40:143
137389951,3cyclictest18610-21expr20:30:113
137389951,3cyclictest13912-21awk19:10:123
137389951,1cyclictest0-21swapper/321:55:123
137389950,3cyclictest275-21systemd-journal20:45:353
137389950,2cyclictest4133-21/usr/sbin/munin23:25:133
137389950,1cyclictest16578-21ssh22:15:023
137339952,3cyclictest20088-21sshd20:32:162
137339952,2cyclictest658-21snmpd23:25:452
137339952,2cyclictest658-21snmpd21:15:052
137339952,2cyclictest658-21snmpd20:55:042
137339952,2cyclictest5833-21mailstats20:00:182
137339952,2cyclictest5397-21sh00:05:092
137339952,2cyclictest337-21fschecks_time21:00:142
137339952,2cyclictest31833-21ssh21:25:412
137339952,2cyclictest30781-21ssh21:45:062
137339952,2cyclictest28879-21cat19:40:132
137339952,2cyclictest28774-21ssh23:40:062
137339952,2cyclictest2786-21cat21:05:142
137339952,2cyclictest27540-21taskset20:50:112
137339952,2cyclictest17441-21cat19:15:162
137339952,2cyclictest17441-21cat19:15:162
137339952,2cyclictest17082-21ntpq20:25:182
137339952,2cyclictest14156-21expr20:20:122
137339952,1cyclictest0-21swapper/223:05:092
137339951,3cyclictest2726-21expr19:55:122
137339950,4cyclictest5368-21grep23:45:142
137339950,4cyclictest18980-21seq19:20:062
137339950,2cyclictest6962-21/usr/sbin/munin21:50:122
137339950,0cyclictest0-21swapper/219:50:202
137259953,1cyclictest30538-21fschecks_count00:20:131
137259953,1cyclictest0-21swapper/122:35:011
137259952,2cyclictest658-21snmpd20:00:091
137259952,2cyclictest6273-21ssh00:25:141
137259952,2cyclictest4386-21ssh22:45:371
137259952,2cyclictest32652-21apt-get19:50:121
137259952,2cyclictest28236-21cat20:50:151
137259952,2cyclictest28062-21gpg-connect-age19:40:011
137259952,2cyclictest26685-21sed20:45:191
137259952,2cyclictest2587-21cut19:55:121
137259952,2cyclictest22-21ksoftirqd/121:25:481
137259952,2cyclictest22-21ksoftirqd/119:15:021
137259952,2cyclictest22-21ksoftirqd/119:15:021
137259952,2cyclictest19030-21cat20:30:131
137259951,3cyclictest658-21snmpd19:25:021
137259951,3cyclictest658-21snmpd00:05:081
137259951,3cyclictest10514-21/usr/sbin/munin20:10:191
137259951,3cyclictest10461-21ssh22:50:051
137209952,2cyclictest9738-21cat20:10:140
137209952,2cyclictest658-21snmpd21:05:080
137209952,2cyclictest658-21snmpd20:50:070
137209952,2cyclictest658-21snmpd19:30:030
137209952,2cyclictest5289-21sh00:05:040
137209952,2cyclictest28652-21ssh23:40:000
137209952,2cyclictest28587-21sh19:40:110
137209952,2cyclictest22756-21cut00:15:160
137209952,2cyclictest14499-21sed19:10:140
137209952,2cyclictest1316-21sed21:00:200
137209951,3cyclictest658-21snmpd19:20:020
137209951,3cyclictest5073-21/usr/sbin/munin20:00:120
137209951,3cyclictest20861-21/usr/sbin/munin20:35:110
137209951,3cyclictest18996-21basename20:30:130
137209951,3cyclictest0-21swapper/023:10:060
137209950,3cyclictest275-21systemd-journal22:50:070
137209950,3cyclictest275-21systemd-journal20:55:110
137389940,3cyclictest19104-21tr19:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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