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2025-11-29 - 05:58
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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 100 highest latencies:
System rackaslot8.osadl.org (updated Sat Nov 29, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3182328295,21sleep20-21swapper/219:08:542
3702304232,20sleep10-21swapper/119:09:341
326072266234,20sleep00-21swapper/019:06:480
325232259224,22sleep30-21swapper/319:05:493
238322640,1sleep30-21swapper/322:15:143
326762630,0sleep00-21swapper/022:43:060
115152620,0sleep30-21swapper/321:23:363
122972600,0sleep20-21swapper/221:24:192
3332590,0sleep30-21swapper/323:27:223
293382590,0sleep10-21swapper/122:19:171
264632580,0sleep10-21swapper/121:11:051
177152580,0sleep00-21swapper/000:25:100
222132530,0sleep00-21swapper/022:14:320
65002190,0sleep30-21swapper/323:10:133
32752190,3sleep122-21ksoftirqd/100:13:571
246082150,2sleep3331rcuc/320:00:113
183842150,0sleep10-21swapper/119:45:161
133682140,0sleep00-21swapper/020:45:170
173672110,1sleep30-21swapper/300:25:013
113342110,3sleep228-21ksoftirqd/219:30:162
5279994,3cyclictest19982-21systemd-journal22:22:421
5279994,3cyclictest19982-21systemd-journal21:29:261
5169994,3cyclictest19982-21systemd-journal23:09:100
5169990,6cyclictest7296-21apt-get20:35:000
30060290,0sleep00-21swapper/022:19:570
5359983,3cyclictest19982-21systemd-journal00:15:013
5319984,3cyclictest508-21dbus-daemon22:26:112
5319984,3cyclictest19982-21systemd-journal23:17:232
5319983,3cyclictest19982-21systemd-journal20:48:582
5319982,3cyclictest19982-21systemd-journal23:22:362
5279984,3cyclictest19982-21systemd-journal21:36:591
5279983,3cyclictest19982-21systemd-journal19:57:021
5279983,3cyclictest19982-21systemd-journal19:18:011
5279983,2cyclictest508-21dbus-daemon23:40:011
5279982,3cyclictest16850-21grep20:55:001
5169985,2cyclictest11738-21rs:main0
5169984,3cyclictest508-21dbus-daemon19:38:520
5169984,3cyclictest19982-21systemd-journal20:15:280
5169983,3cyclictest19982-21systemd-journal22:39:070
2211280,0sleep20-21swapper/200:13:032
1758280,1sleep00-21swapper/019:10:190
1280280,0sleep10-21swapper/121:16:061
5359974,2cyclictest508-21dbus-daemon22:10:013
5359974,2cyclictest26079-21/usr/sbin/munin23:45:193
5359974,2cyclictest11736-21in:imuxsock00:15:043
5359973,3cyclictest508-21dbus-daemon20:11:003
5359973,3cyclictest19982-21systemd-journal20:47:123
5359973,3cyclictest18019-21df_inode19:45:143
5359973,3cyclictest0-21swapper/322:38:113
5359973,1cyclictest0-21swapper/323:04:193
5359972,3cyclictest19982-21systemd-journal22:54:093
5359972,3cyclictest19982-21systemd-journal22:54:093
5359972,3cyclictest19982-21systemd-journal21:19:253
5359972,3cyclictest19982-21systemd-journal20:16:453
5359972,3cyclictest19982-21systemd-journal19:54:203
5359972,3cyclictest19982-21systemd-journal19:31:483
5359971,3cyclictest19982-21systemd-journal21:10:143
5319974,3cyclictest11736-21in:imuxsock21:37:472
5319974,2cyclictest31932-21sh22:42:282
5319973,3cyclictest7661-21lldpd22:46:362
5319973,3cyclictest4185-21tune2fs21:40:152
5319973,3cyclictest21611-21df_inode21:30:132
5319973,3cyclictest19982-21systemd-journal22:06:592
5319973,3cyclictest0-21swapper/222:32:432
5319973,1cyclictest0-21swapper/223:48:152
5319973,1cyclictest0-21swapper/221:45:252
5319973,1cyclictest0-21swapper/200:38:092
5319972,2cyclictest28-21ksoftirqd/223:40:002
5319970,3cyclictest31949-21ssh23:05:132
5279975,1cyclictest22-21ksoftirqd/123:30:011
5279975,1cyclictest1-21systemd21:31:321
5279973,3cyclictest508-21dbus-daemon21:00:381
5279973,3cyclictest30654-21snmpd20:03:201
5279973,3cyclictest19982-21systemd-journal19:41:481
5279973,3cyclictest14110-21ntpq19:35:161
5279973,3cyclictest0-21swapper/123:47:371
5279973,3cyclictest0-21swapper/100:28:511
5279973,2cyclictest19982-21systemd-journal23:27:311
5279973,1cyclictest0-21swapper/123:53:421
5279973,1cyclictest0-21swapper/123:19:001
5279973,1cyclictest0-21swapper/122:48:311
5279973,1cyclictest0-21swapper/100:03:281
5279972,3cyclictest19982-21systemd-journal23:44:121
5279971,5cyclictest0-21swapper/122:12:251
5279971,4cyclictest19982-21systemd-journal23:59:371
5279970,3cyclictest6191-21ssh22:03:321
5279970,1cyclictest52050irq/138-enp4s0-21:46:581
5169974,2cyclictest19982-21systemd-journal21:50:430
5169973,3cyclictest7661-21lldpd20:13:000
5169973,3cyclictest3777-21awk21:40:130
5169973,3cyclictest23548-21diskmemload21:35:180
5169973,3cyclictest21269-21awk21:30:110
5169973,3cyclictest0-21swapper/000:00:280
5169973,1cyclictest2842-21ls20:25:000
5169973,1cyclictest0-21swapper/021:56:370
5169973,1cyclictest0-21swapper/021:24:370
5169972,4cyclictest30654-21snmpd22:31:010
5169972,3cyclictest19982-21systemd-journal22:27:290
5359966,0cyclictest0-21swapper/323:56:243
5359966,0cyclictest0-21swapper/323:51:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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