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2025-11-02 - 21:14
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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 50 highest latencies:
System rackaslot8.osadl.org (updated Sun Nov 02, 2025 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212672285220,21sleep30-21swapper/307:07:023
212132266240,16sleep10-21swapper/107:06:191
213712262230,20sleep00-21swapper/007:08:190
212342258224,22sleep20-21swapper/207:06:372
153902740,0sleep20-21swapper/209:12:542
183892620,0sleep00-21swapper/009:40:160
92112600,0sleep00-21swapper/010:24:040
44892600,0sleep00-21swapper/009:55:000
159712590,0sleep20-21swapper/211:21:192
266862560,0sleep00-21swapper/011:05:120
287782550,0sleep10-21swapper/110:40:151
139262540,0sleep00-21swapper/008:00:210
91262490,0sleep30-21swapper/312:07:103
52042270,3sleep228-21ksoftirqd/212:24:542
322552190,0sleep30-21swapper/309:50:193
196142160,0sleep10-21swapper/109:40:331
216509994,3cyclictest19982-21systemd-journal07:20:423
216509990,8cyclictest9690-21ntp_states10:50:173
216509990,3cyclictest20680-21sed08:15:213
216479996,1cyclictest16954-21apt-get08:10:132
216479993,5cyclictest24682-21/usr/sbin/munin10:10:172
216479992,4cyclictest29875-21ssh09:49:242
216479991,6cyclictest30706-21ssh11:07:452
216479991,5cyclictest3025-21ssh09:28:262
216479991,3cyclictest10645-21cut10:25:142
216479990,8cyclictest14399-21ssh10:54:572
216479990,6cyclictest9741-21taskset07:52:122
216479990,6cyclictest8303-21ssh11:15:192
216479990,6cyclictest15713-21sh10:02:372
216479990,4cyclictest23630-21sh12:15:552
216389995,3cyclictest19982-21systemd-journal12:33:450
216389990,2cyclictest16388-21ssh11:47:130
25097280,0sleep20-21swapper/210:36:072
216509983,3cyclictest19982-21systemd-journal10:16:313
216479986,1cyclictest24776-21apt-get09:20:122
216479985,2cyclictest6947-21apt-get09:00:122
216479982,2cyclictest17925-21ssh11:48:502
216479981,3cyclictest8681-21ssh10:23:232
216479981,3cyclictest3868-21sed08:50:182
216479981,2cyclictest11447-21diskmemload12:33:242
216479980,6cyclictest22088-21taskset11:26:302
216479980,5cyclictest27981-21ssh12:37:462
216479980,5cyclictest21562-21ssh09:17:332
216479980,5cyclictest20121-21ssh10:05:292
216479980,4cyclictest5007-21taskset11:13:142
216479980,3cyclictest6751-21smart_sda12:05:172
216479980,2cyclictest28-21ksoftirqd/212:10:492
216439986,1cyclictest28725-21ssh11:05:451
216439986,1cyclictest19491-21ssh11:50:081
216439984,2cyclictest19982-21systemd-journal08:21:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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