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2025-12-20 - 18:00
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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 Dec 20, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
196662314288,16sleep20-21swapper/207:05:582
199592295265,20sleep10-21swapper/107:09:431
198002260229,21sleep00-21swapper/007:07:410
197982255222,22sleep30-21swapper/307:07:403
140912670,0sleep20-21swapper/211:40:192
325942610,0sleep00-21swapper/008:45:180
265462570,0sleep00-21swapper/012:10:120
36462170,0sleep20-21swapper/208:55:132
126732100,0sleep30-21swapper/308:00:223
201009996,2cyclictest34-21ksoftirqd/307:15:003
200899992,4cyclictest8509-21idleruntime-cro11:30:000
201009983,3cyclictest275-21systemd-journal09:36:273
200949985,2cyclictest5026-21awk12:35:011
200899986,1cyclictest12-21ksoftirqd/012:30:000
201009976,1cyclictest34-21ksoftirqd/310:30:013
201009975,1cyclictest32598-21pmu-power08:45:183
201009973,3cyclictest658-21snmpd11:00:013
201009973,3cyclictest504-21dbus-daemon07:20:003
201009973,3cyclictest275-21systemd-journal10:19:263
201009972,4cyclictest0-21swapper/310:55:203
201009972,3cyclictest275-21systemd-journal08:15:103
201009972,3cyclictest275-21systemd-journal08:14:563
201009972,3cyclictest275-21systemd-journal07:34:533
201009970,3cyclictest26806-21/usr/sbin/munin08:35:213
200989974,2cyclictest275-21systemd-journal10:59:272
200989973,3cyclictest658-21snmpd12:23:242
200989973,3cyclictest658-21snmpd12:07:022
200989973,3cyclictest27664-21apt-get07:25:162
200989973,3cyclictest275-21systemd-journal09:19:422
200989973,3cyclictest275-21systemd-journal08:29:112
200989971,3cyclictest4301-21munin-run07:45:012
200989970,4cyclictest6519-21munin-run07:50:012
200949973,3cyclictest1-21systemd07:50:191
200949972,3cyclictest31841-21apt-get07:35:011
200949970,6cyclictest27512-21munin-run11:00:011
200949970,4cyclictest20835-21munin-run10:45:011
200899975,2cyclictest12-21ksoftirqd/008:30:010
200899974,2cyclictest27848-21cron09:50:010
200899973,3cyclictest658-21snmpd11:12:280
32382260,0sleep20-21swapper/208:45:172
201009964,1cyclictest20555-21diskstats08:20:143
201009963,2cyclictest6931-21fschecks_count11:25:153
201009963,2cyclictest658-21snmpd11:53:213
201009963,2cyclictest658-21snmpd10:48:043
201009963,2cyclictest504-21dbus-daemon11:10:183
201009963,2cyclictest275-21systemd-journal10:24:563
201009963,2cyclictest27460-21sshd09:45:233
201009963,2cyclictest24713-21df_inode12:05:113
201009963,2cyclictest20444-21sshd10:40:273
201009963,2cyclictest18644-11brltty11:16:083
201009963,2cyclictest1-21systemd11:05:183
201009962,3cyclictest658-21snmpd11:40:333
201009962,3cyclictest658-21snmpd11:20:193
201009962,3cyclictest658-21snmpd10:51:163
201009962,3cyclictest658-21snmpd10:01:363
201009962,3cyclictest658-21snmpd09:54:003
201009962,3cyclictest658-21snmpd09:31:343
201009962,3cyclictest658-21snmpd09:01:133
201009962,3cyclictest658-21snmpd08:30:053
201009962,3cyclictest658-21snmpd08:26:083
201009962,3cyclictest560-21gdbus10:40:013
201009962,3cyclictest275-21systemd-journal09:24:543
201009962,3cyclictest275-21systemd-journal08:43:263
201009962,3cyclictest17636-21cat09:25:153
201009962,3cyclictest15542-21ls11:45:143
201009962,3cyclictest13465-21cat09:15:163
201009960,5cyclictest7988-21smart_sda07:50:213
201009960,5cyclictest3597-21/usr/sbin/munin08:55:193
201009960,2cyclictest29276-21perl12:15:143
201009960,0cyclictest0-21swapper/309:10:403
200989963,2cyclictest658-21snmpd10:22:572
200989963,2cyclictest658-21snmpd09:52:332
200989963,2cyclictest658-21snmpd08:06:502
200989963,2cyclictest658-21snmpd07:31:052
200989963,2cyclictest501-21in:imuxsock11:21:342
200989963,2cyclictest28468-21cat11:00:162
200989963,2cyclictest21823-21taskset11:59:592
200989963,1cyclictest23322-21apt-get10:50:132
200989962,3cyclictest658-21snmpd12:16:572
200989962,3cyclictest658-21snmpd11:52:202
200989962,3cyclictest658-21snmpd11:35:242
200989962,3cyclictest658-21snmpd11:19:172
200989962,3cyclictest658-21snmpd11:07:532
200989962,3cyclictest658-21snmpd10:48:312
200989962,3cyclictest658-21snmpd10:35:062
200989962,3cyclictest658-21snmpd10:32:422
200989962,3cyclictest658-21snmpd09:23:432
200989962,3cyclictest658-21snmpd09:00:092
200989962,3cyclictest658-21snmpd08:10:142
200989962,3cyclictest658-21snmpd08:04:412
200989962,3cyclictest658-21snmpd07:50:142
200989962,3cyclictest658-21snmpd07:21:282
200989962,3cyclictest32473-21cat11:10:142
200989962,3cyclictest21594-21cat07:10:202
200949966,0cyclictest0-21swapper/110:09:281
200949963,2cyclictest658-21snmpd08:00:351
200949963,2cyclictest275-21systemd-journal12:36:461
200949963,2cyclictest11151-21tr11:35:141
200949962,3cyclictest8356-21expr09:05:131
200949962,3cyclictest658-21snmpd11:45:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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