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2025-12-05 - 11:36
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack2slot7.osadl.org (updated Fri Dec 05, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1911346993913,6cyclictest171rcu_preempt23:43:121
191134599383,17cyclictest1966758-21latency_hist21:31:110
1911347993714,7cyclictest171rcu_preempt21:51:102
191134799361,10cyclictest11050irq/107-eth%d21:52:312
191134599363,24cyclictest1981251-21sendmail-msp21:51:490
1911345993521,7cyclictest2090293-21sendmail-msp23:53:510
1911347993410,5cyclictest171rcu_preempt21:38:102
1911347993410,4cyclictest1959018-21ntpq21:23:122
191134599348,21cyclictest2079071-21ntpq23:33:170
1911347993324,5cyclictest0-21swapper/222:48:132
191134599333,29cyclictest0-21swapper/023:38:130
191134699321,19cyclictest28-21ksoftirqd/100:31:161
191134599325,2cyclictest1967673-21ssh21:32:320
1911347993112,6cyclictest171rcu_preempt00:28:282
1911345993110,5cyclictest1981632-21ssh21:46:250
191134599310,9cyclictest1992268-21/usr/sbin/munin21:58:070
191134699305,18cyclictest1964177-21/usr/sbin/munin21:28:171
1911346993010,1cyclictest11050irq/107-eth%d22:48:131
191134599301,23cyclictest0-21swapper/021:26:100
191134699291,6cyclictest0-21swapper/122:58:231
191134799285,21cyclictest1008-21mta-sts-daemon23:48:142
1911347992817,9cyclictest1951558-21diskmemload23:35:592
191134599286,16cyclictest111788-21systemd-journal23:06:140
191134599282,22cyclictest2023168-21cat22:31:100
191134599282,18cyclictest1954232-21/usr/sbin/munin21:18:120
191134699271,6cyclictest28-21ksoftirqd/122:18:091
1911346992711,12cyclictest619-21mta-sts-daemon20:33:281
1911346992711,12cyclictest619-21mta-sts-daemon20:33:281
191134699270,3cyclictest2137216-21/usr/sbin/munin00:43:121
191134599274,6cyclictest2110631-21ntpq00:08:150
191134599272,7cyclictest1936394-21apt-get20:31:170
191134599272,7cyclictest1936394-21apt-get20:31:170
191134599272,24cyclictest0-21swapper/022:46:090
191134799262,5cyclictest171rcu_preempt23:06:312
191134699266,16cyclictest628-21systemd-logind23:50:231
191134699263,4cyclictest0-21swapper/123:15:461
191134599262,22cyclictest0-21swapper/023:43:080
1911345992616,2cyclictest1948177-21grep21:03:210
191134599261,18cyclictest58-21kcompactd022:38:120
191134599260,21cyclictest1914722-21latency_hist19:26:100
191134599259,9cyclictest0-21swapper/000:13:140
191134599259,9cyclictest0-21swapper/000:13:140
191134599251,2cyclictest111788-21systemd-journal21:41:090
191134599251,17cyclictest2133691-21/usr/sbin/munin00:38:080
191134599251,12cyclictest69-21kswapd000:31:160
191134799247,5cyclictest171rcu_preempt21:33:172
191134799247,10cyclictest171rcu_preempt23:03:072
191134799244,13cyclictest111788-21systemd-journal00:31:142
191134799241,19cyclictest0-21swapper/221:58:142
1911346992420,3cyclictest271ktimers/122:38:121
1911346992413,5cyclictest2074465-21ntpq23:28:141
191134599241,18cyclictest0-21swapper/000:03:130
191134599240,18cyclictest2123480-21/usr/sbin/munin00:23:180
191134799233,17cyclictest2088020-21ssh23:43:122
191134599236,6cyclictest1935923-21/usr/sbin/munin20:28:160
191134599236,6cyclictest1935923-21/usr/sbin/munin20:28:160
191134599234,15cyclictest111788-21systemd-journal23:11:380
191134599234,13cyclictest0-21swapper/023:48:170
191134599230,16cyclictest2121382-21latency_hist00:21:090
112699230,2rtkit-daemon1125-21rtkit-daemon19:55:071
191134799223,3cyclictest171rcu_preempt21:27:462
191134699224,12cyclictest1911303-21munin-run19:16:081
191134699222,4cyclictest1951558-21diskmemload21:35:151
1911346992215,4cyclictest261rcuc/120:06:571
1911346992213,2cyclictest171rcu_preempt22:33:131
191134599222,7cyclictest1930934-21ntpq20:13:160
191134599221,16cyclictest1924610-21gpgv19:56:090
191134799214,10cyclictest11050irq/107-eth%d00:08:152
191134799212,2cyclictest0-21swapper/200:18:112
191134799212,15cyclictest1005-21mta-sts-daemon20:53:142
191134799211,6cyclictest1934239-21awk20:23:132
191134799211,15cyclictest111788-21systemd-journal23:30:232
191134799210,5cyclictest2138176-21ntp_states00:43:122
191134699219,7cyclictest271ktimers/120:23:131
191134699210,8cyclictest2101611-21ntpq23:58:121
191134599212,15cyclictest1934650-21/usr/sbin/munin20:23:170
1911345992119,1cyclictest0-21swapper/019:43:030
191134599211,19cyclictest0-21swapper/023:18:090
191134599210,20cyclictest2024332-21ssh22:33:080
191134799201,5cyclictest0-21swapper/219:43:102
191134799201,4cyclictest171rcu_preempt23:16:182
191134699204,12cyclictest2018822-21ssh22:26:101
191134699204,11cyclictest1989554-21ssh21:54:181
191134699204,10cyclictest1983656-21ssh21:48:171
191134699203,14cyclictest111788-21systemd-journal22:12:571
191134699201,4cyclictest1935776-21ntpq20:28:131
191134699201,4cyclictest1935776-21ntpq20:28:131
191134599203,10cyclictest2126746-21ntpq00:28:280
191134599202,12cyclictest111788-21systemd-journal22:53:460
191134599202,12cyclictest111788-21systemd-journal22:53:460
191134599201,18cyclictest1976626-21apt-config21:41:090
191134799196,10cyclictest1951558-21diskmemload21:18:212
1911347991910,4cyclictest11050irq/107-eth%d23:53:112
191134699193,4cyclictest2134009-21grep00:38:111
191134699193,4cyclictest171rcu_preempt23:51:101
191134699193,12cyclictest11050irq/107-eth%d19:48:121
191134699190,14cyclictest2111410-21ssh00:08:471
191134599197,3cyclictest2073573-21/usr/sbin/munin23:28:120
1911345991916,2cyclictest1919565-21munin-plugin-st19:41:090
1911345991916,2cyclictest1006-21mta-sts-daemon20:53:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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