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2021-06-20 - 02:32

Intel(R) Atom(TM) Processor E3930 @ 1.30GHz, Linux 5.2.0-rt1 (Profile)

Latency plot of system in rack #8, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack8slot8.osadl.org (updated Sun Jul 28, 2019 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18642214176,26sleep10-21swapper/11
18642214176,26sleep10-21swapper/11
18317213473,25sleep00-21swapper/00
18317213473,25sleep00-21swapper/00
23822730,2sleep02381-21wc0
248772500,6sleep121-21ksoftirqd/11
1882799441,29cyclictest13646-21systemd-logind1
1882799381,33cyclictest11731-21grep1
1882799380,11cyclictest0-21swapper/11
1882099371,12cyclictest269062awk0
1882099371,12cyclictest269062awk0
1882799364,5cyclictest13652-21sssd_kcm1
1882799361,10cyclictest0-21swapper/11
18827993513,4cyclictest20854-21cat1
1882099354,4cyclictest121rcu_preempt0
1882099351,31cyclictest535-21systemd-journal0
6462341,18sleep0650-21bash0
1882799349,4cyclictest21325-1kworker/u9:21
1882799341,26cyclictest13652-21sssd_kcm1
1882799339,6cyclictest21-21ksoftirqd/11
1882799338,12cyclictest0-21swapper/11
1882799336,14cyclictest0-21swapper/11
1882799332,14cyclictest13652-21sssd_kcm1
1882099336,10cyclictest121rcu_preempt0
1882099333,3cyclictest121rcu_preempt0
18820993321,4cyclictest1300-21sed0
1882099331,17cyclictest32608-21uptime0
1882799329,12cyclictest0-21swapper/11
1882799327,13cyclictest0-21swapper/11
1882799327,12cyclictest1720-21pool1
1882799322,11cyclictest21-21ksoftirqd/11
1882099321,19cyclictest24285-21vmstat0
18820993211,5cyclictest2678-21cstates0
1882799319,3cyclictest21-21ksoftirqd/11
1882799319,19cyclictest21-21ksoftirqd/11
1882799315,11cyclictest1365998rtkit-daemon1
1882799310,8cyclictest0-21swapper/11
1882099318,10cyclictest28443-21expr0
1882099315,11cyclictest19736-21latency_hist0
18820993123,5cyclictest26842-21/usr/sbin/munin0
1882099311,6cyclictest30297-21irqstats0
1365998310,6rtkit-daemon21751-21diskmemload1
269052300,7sleep10-21swapper/11
269052300,7sleep10-21swapper/11
1882799308,11cyclictest0-21swapper/11
1882799306,13cyclictest121rcu_preempt1
1882799305,14cyclictest0-21swapper/11
1882799302,9cyclictest13652-21sssd_kcm1
1882799302,9cyclictest13652-21sssd_kcm1
1882799302,5cyclictest0-21swapper/11
1882799302,21cyclictest13652-21sssd_kcm1
1882799302,10cyclictest13652-21sssd_kcm1
1882799301,25cyclictest535-21systemd-journal1
18827993010,5cyclictest1365998rtkit-daemon1
1882099305,9cyclictest25769-21turbostat0
1882099305,3cyclictest121rcu_preempt0
1882099301,25cyclictest535-21systemd-journal0
1882099300,27cyclictest13646-21systemd-logind0
1365998300,5rtkit-daemon22961-21turbostat1
1882799299,4cyclictest21751-21diskmemload1
1882799298,4cyclictest21751-21diskmemload1
1882799298,11cyclictest21-21ksoftirqd/11
1882799295,7cyclictest7376-21sa11
1882799294,13cyclictest6055-21crond1
1882799294,13cyclictest27027-21sshd1
1882799293,12cyclictest21-21ksoftirqd/11
1882799291,25cyclictest13646-21systemd-logind1
1882099299,7cyclictest1-21systemd0
1882099294,3cyclictest121rcu_preempt0
1882099291,9cyclictest4297-21runrttasks0
1882099291,7cyclictest0-21swapper/00
1882099291,6cyclictest19890-21runrttasks0
1882099291,6cyclictest14095-21find0
1882099291,3cyclictest0-21swapper/00
70032282,3sleep0121rcu_preempt0
1882799287,4cyclictest10339-21processes1
1882799284,13cyclictest0-21swapper/11
1882799282,14cyclictest0-21swapper/11
1882799281,4cyclictest0-21swapper/11
1882799281,24cyclictest535-21systemd-journal1
1882799281,24cyclictest535-21systemd-journal1
1882799281,24cyclictest535-21systemd-journal1
18827992810,14cyclictest31340-21seq1
1882099286,7cyclictest5709-21sh0
1882099281,9cyclictest31092-21runrttasks0
1882099281,9cyclictest29769-21runrttasks0
1882099281,8cyclictest12436-21cat0
1882099281,24cyclictest13646-21systemd-logind0
18820992811,15cyclictest82550irq/133-enp2s0-0
180052280,5sleep010-21ksoftirqd/00
1882799276,5cyclictest5041-21sshd1
1882799276,4cyclictest27687-21kworker/u8:01
1882799276,3cyclictest21-21ksoftirqd/11
1882799273,19cyclictest13652-21sssd_kcm1
18827992721,2cyclictest0-21swapper/11
1882799272,12cyclictest0-21swapper/11
1882799272,12cyclictest0-21swapper/11
18827992720,4cyclictest17637-21cut1
1882099277,6cyclictest16819-21timerwakeupswit0
1882099276,5cyclictest121rcu_preempt0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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