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2025-09-01 - 14:42
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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
Characteristics of the highest latencies:
System rackdslot0.osadl.org (updated Mon Sep 01, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1560899240,6cyclictest29553-21iwlist00:20:202
1560699240,19cyclictest31406-21cat23:25:010
1560699220,18cyclictest0-21swapper/019:39:180
15608992113,3cyclictest0-21swapper/222:54:462
1560899202,17cyclictest0-21swapper/222:25:192
15608992018,1cyclictest0-21swapper/223:35:322
1560799203,16cyclictest970-21dbus-daemon20:55:191
1560899193,1cyclictest0-21swapper/219:28:072
15608991917,1cyclictest0-21swapper/223:18:252
15608991916,2cyclictest6154-21nfsd400:35:172
15608991914,1cyclictest0-21swapper/223:40:352
1560899190,2cyclictest4526-21H212:26:332
1560899190,18cyclictest0-21swapper/221:08:102
1560899190,17cyclictest434-21systemd-udevd22:00:082
1560899190,16cyclictest4532-21H212:26:332
1560799192,16cyclictest4523-21H212:26:331
1560799192,16cyclictest19006-21fstrim00:00:011
15607991917,1cyclictest22894-21cron23:09:011
15607991916,2cyclictest4532-21H212:26:331
15607991916,2cyclictest0-21swapper/123:35:001
1560799190,3cyclictest0-21swapper/122:05:161
15606991915,3cyclictest0-21swapper/021:30:200
1560699191,16cyclictest20149-21fschecks_count21:10:150
1560699190,1cyclictest0-21swapper/020:59:360
1560699190,18cyclictest0-21swapper/023:00:410
1560899182,15cyclictest0-21swapper/223:45:082
1560899182,15cyclictest0-21swapper/220:15:562
15608991817,1cyclictest28-21ksoftirqd/219:53:282
15608991816,1cyclictest28-21ksoftirqd/221:48:132
15608991816,1cyclictest0-21swapper/220:02:422
1560899181,2cyclictest4500-21VM12:26:332
1560899180,2cyclictest4532-21H212:26:332
1560899180,17cyclictest19638-21grep21:10:132
1560799182,15cyclictest21-21ksoftirqd/121:09:001
15607991816,1cyclictest12525-21cpuspeed_turbos20:00:111
15607991816,1cyclictest0-21swapper/100:20:281
15607991815,2cyclictest4536-21H212:26:331
15607991815,2cyclictest14501-21cut21:00:151
15607991814,3cyclictest31469-21ls23:25:001
15607991814,2cyclictest31928-21proc_pri21:30:191
15607991813,4cyclictest0-21swapper/121:18:021
1560799180,17cyclictest0-21swapper/100:35:061
1560699182,15cyclictest31860-21munin-plugin-st20:35:000
1560699182,15cyclictest25088-21cpuspeed_turbos21:20:130
15606991815,2cyclictest4536-21H212:26:330
15606991815,2cyclictest0-21swapper/020:50:160
15606991814,3cyclictest0-21swapper/019:27:410
15606991814,2cyclictest8095-21nfsd419:50:190
1560699180,3cyclictest1845-21systemd-journal00:23:480
1560699180,2cyclictest4526-21H212:26:330
1560899179,5cyclictest0-21swapper/221:36:542
15608991716,1cyclictest28-21ksoftirqd/222:21:402
15608991716,1cyclictest28-21ksoftirqd/200:25:022
15608991715,1cyclictest28-21ksoftirqd/223:59:002
15608991715,1cyclictest0-21swapper/219:15:202
15608991714,2cyclictest9645-21/usr/sbin/munin22:45:102
15608991714,2cyclictest4532-21H212:26:332
15608991714,2cyclictest31762-21nfsd421:30:172
15608991714,2cyclictest3002-21apache222:10:082
15608991714,2cyclictest28860-21cron20:34:562
15608991714,2cyclictest23788-21/usr/sbin/munin22:15:152
15608991714,2cyclictest23470-21nfsd421:15:202
15608991714,2cyclictest23170-21cut00:10:012
15608991714,2cyclictest18107-21sed19:10:222
15608991714,2cyclictest1798-21systemd20:57:072
15608991714,2cyclictest13391-21missed_timers21:55:162
15608991713,3cyclictest25954-21proxymap20:22:382
1560899170,2cyclictest3350-21master22:41:172
1560899170,2cyclictest23728-21cstates23:10:122
1560899170,2cyclictest19330-21wc22:05:202
1560899170,2cyclictest1404-21lxd23:20:562
1560899170,2cyclictest1211-21sed23:25:212
1560899170,16cyclictest8409-21apache_accesses20:50:132
1560899170,16cyclictest7711-21chrt20:46:362
1560899170,16cyclictest4534-21H212:26:332
1560899170,16cyclictest4523-21H212:26:332
1560899170,16cyclictest4273-21cut19:45:142
1560899170,16cyclictest4054-21cpu21:40:152
1560899170,16cyclictest2697-21chrt22:32:562
1560899170,16cyclictest18682-21cat20:10:152
1560899170,16cyclictest16403-21latency_hist23:55:012
1560899170,16cyclictest1059-21cups-browsed20:05:022
1560899170,16cyclictest10196-21fschecks_count19:55:142
1560899170,16cyclictest0-21swapper/223:00:162
1560899170,16cyclictest0-21swapper/221:53:272
15607991716,1cyclictest21-21ksoftirqd/100:07:441
15607991715,1cyclictest21-21ksoftirqd/123:48:111
15607991715,1cyclictest21-21ksoftirqd/119:55:131
15607991714,2cyclictest8537-21tr20:50:161
15607991714,2cyclictest5887-21cpuspeed_turbos20:45:181
15607991714,2cyclictest4534-21H212:26:331
15607991714,2cyclictest4532-21H212:26:331
15607991714,2cyclictest31720-21grep19:35:231
15607991714,2cyclictest28814-21missed_timers21:25:181
15607991714,2cyclictest22053-21cpuspeed_turbos19:20:151
15607991714,2cyclictest2179-21missed_timers19:40:191
15607991714,2cyclictest20966-21apt-config22:10:011
15607991713,3cyclictest4528-21H212:26:331
1560799171,15cyclictest5790-21switchtime21:40:221
1560799171,15cyclictest21-21ksoftirqd/122:54:161
1560799171,15cyclictest21-21ksoftirqd/122:20:241
1560799171,15cyclictest0-21swapper/122:18:571
1560799170,2cyclictest5640-21expr23:35:161
1560799170,2cyclictest414-20systemd-journal00:28:471
1560799170,2cyclictest28584-21grep19:30:151
1560799170,2cyclictest1748-21taskset21:35:161
1560799170,2cyclictest16033-21sed22:00:171
1560799170,16cyclictest970-21dbus-daemon23:20:011
1560799170,16cyclictest4593-21H212:26:331
1560799170,16cyclictest4536-21H212:26:331
1560799170,16cyclictest4532-21H212:26:331
1560799170,16cyclictest4528-21H212:26:331
1560799170,16cyclictest4526-21H212:26:331
1560799170,16cyclictest24634-21ntp_states00:10:141
1560799170,16cyclictest1955-21ntp_states22:30:221
1560799170,16cyclictest19113-21apache_volume19:15:141
1560799170,16cyclictest16203-21chrt23:53:521
1560799170,16cyclictest0-21swapper/122:26:161
15606991715,1cyclictest0-21swapper/021:55:190
15606991715,1cyclictest0-21swapper/021:00:150
15606991715,1cyclictest0-21swapper/020:25:180
15606991714,2cyclictest6058-21vmstat19:45:230
15606991714,2cyclictest4593-21H212:26:330
15606991714,2cyclictest4593-21H212:26:330
15606991714,2cyclictest4528-21H212:26:330
15606991714,2cyclictest29691-21chrt21:25:420
15606991714,2cyclictest26450-21sed22:20:000
15606991714,2cyclictest17612-21taskset20:07:570
15606991714,2cyclictest12322-21missed_timers23:45:170
15606991713,3cyclictest18027-21nfsd423:55:170
15606991713,2cyclictest20776-21sed22:10:020
1560699171,15cyclictest242462sleep021:16:140
1560699171,15cyclictest0-21swapper/022:00:210
1560699170,2cyclictest4532-21H212:26:330
1560699170,2cyclictest28549-21perf23:20:010
1560699170,2cyclictest17941-21grep21:05:180
1560699170,2cyclictest14660-21dpkg20:05:010
1560699170,2cyclictest11295-21sed22:45:210
1560699170,1cyclictest0-21swapper/000:33:380
1560699170,16cyclictest970-21dbus-daemon22:40:190
1560699170,16cyclictest7498-21fschecks_time21:45:130
1560699170,16cyclictest4593-21H212:26:330
1560699170,16cyclictest4593-21H212:26:330
1560699170,16cyclictest4532-21H212:26:330
1560699170,16cyclictest4084-21netstat20:40:180
1560699170,16cyclictest2368-21sed22:30:250
1560699170,16cyclictest22466-21cut19:20:160
1560699170,16cyclictest16244-21apt-config19:10:010
1560699170,16cyclictest10675-21smtpd23:43:020
15608991614,1cyclictest0-21swapper/222:55:152
15608991614,1cyclictest0-21swapper/222:35:162
15608991613,2cyclictest32337-21expr20:35:142
15608991613,2cyclictest32337-21expr20:35:142
15608991613,2cyclictest15263-21ntp_kernel_pll_21:00:192
1560899160,15cyclictest4526-21H212:26:332
1560899160,15cyclictest26782-21expr20:25:152
1560899160,15cyclictest1108-21tr19:40:142
1560899160,15cyclictest0-21swapper/219:35:222
1560899160,15cyclictest0-21swapper/219:30:152
1560899160,15cyclictest0-21swapper/200:30:202
1560899160,15cyclictest0-21swapper/200:10:132
15607991614,1cyclictest4536-21H212:26:331
15607991614,1cyclictest2614-21/usr/sbin/munin20:40:141
15607991614,1cyclictest10548-21latency21:50:171
15607991614,1cyclictest0-21swapper/122:45:121
15607991614,1cyclictest0-21swapper/120:20:181
15607991614,1cyclictest0-21swapper/100:00:181
1560799160,1cyclictest0-21swapper/120:30:011
1560799160,15cyclictest7021-21tr21:45:121
1560799160,15cyclictest4849-21wget19:45:151
1560799160,15cyclictest22801-21grep20:15:221
1560799160,15cyclictest0-21swapper/123:40:191
1560799160,15cyclictest0-21swapper/122:40:171
1560799160,15cyclictest0-21swapper/121:20:141
1560799160,15cyclictest0-21swapper/121:10:131
1560799160,15cyclictest0-21swapper/120:35:151
1560799160,15cyclictest0-21swapper/120:35:141
1560799160,15cyclictest0-21swapper/100:30:141
15606991614,1cyclictest5058-21grep21:40:170
15606991614,1cyclictest0-21swapper/023:30:100
15606991614,1cyclictest0-21swapper/022:10:020
15606991614,1cyclictest0-21swapper/020:45:190
15606991614,1cyclictest0-21swapper/020:35:140
15606991614,1cyclictest0-21swapper/020:35:140
15606991613,2cyclictest4536-21H212:26:330
15606991613,2cyclictest32127-21fschecks_time00:25:140
15606991613,2cyclictest26800-21dpkg22:20:000
1560699160,1cyclictest4523-21H212:26:330
1560699160,15cyclictest9578-21grep19:55:130
1560699160,15cyclictest4526-21H212:26:330
1560699160,15cyclictest21169-21cpuspeed_turbos20:15:140
1560699160,15cyclictest15198-21nfsd423:50:170
1560699160,15cyclictest12357-21/usr/sbin/munin22:50:190
1560699160,15cyclictest0-21swapper/023:25:140
1560699160,15cyclictest0-21swapper/023:10:130
1560699160,15cyclictest0-21swapper/021:35:160
1560699160,15cyclictest0-21swapper/020:10:170
1560699160,15cyclictest0-21swapper/019:15:150
1560699160,15cyclictest0-21swapper/000:18:510
15607991513,1cyclictest0-21swapper/120:05:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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