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2025-12-10 - 19:35
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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 rackeslot8.osadl.org (updated Wed Dec 10, 2025 12:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1618538992523,1cyclictest0-21swapper/308:55:013
18012092221,9sleep01801293-21/usr/sbin/munin09:25:210
1618538992017,1cyclictest0-21swapper/310:20:163
1618538992017,1cyclictest0-21swapper/309:20:153
1618538991916,1cyclictest0-21swapper/309:15:023
1618538991916,1cyclictest0-21swapper/308:30:013
1618538991916,1cyclictest0-21swapper/307:40:013
1618538991915,1cyclictest0-21swapper/308:05:003
161853899191,14cyclictest1682666-21taskset07:55:223
161853899191,13cyclictest1811740-21taskset09:35:003
161853899190,14cyclictest1861175-21taskset10:05:173
161853899188,7cyclictest20023422sleep311:30:193
1618538991815,1cyclictest0-21swapper/311:55:203
1618538991815,1cyclictest0-21swapper/310:45:193
1618538991815,1cyclictest0-21swapper/310:10:153
161853899181,13cyclictest1746527-21turbostat08:50:003
161853899171,5cyclictest1696276-21taskset08:10:023
161853899171,5cyclictest1696276-21taskset08:10:013
1618538991714,1cyclictest0-21swapper/311:45:193
1618538991714,1cyclictest0-21swapper/310:00:013
161853899171,13cyclictest2095920-21taskset12:30:123
161853899171,13cyclictest1957320-21chrt11:05:003
161853899171,13cyclictest1690041-21taskset08:05:123
161853899171,13cyclictest1663629-21taskset07:40:193
161853899171,12cyclictest2055453-21chrt12:05:083
161853899171,12cyclictest2020469-21chrt11:40:313
161853899171,12cyclictest1990458-21taskset11:25:123
161853899171,12cyclictest1974496-21chrt11:15:143
161853899171,12cyclictest1633605-21taskset07:20:163
161853899170,13cyclictest2095606-21taskset12:30:003
147598170,10rtkit-daemon2069903-21ssh12:11:560
1618538991613,1cyclictest0-21swapper/312:35:153
1618538991612,1cyclictest0-21swapper/308:40:223
161853899161,12cyclictest2047357-21taskset12:00:073
161853899161,12cyclictest1963610-21chrt11:05:573
161853899161,12cyclictest1909621-21taskset10:35:163
161853899161,12cyclictest1899089-21chrt10:26:063
161853899161,12cyclictest1884641-21sleep10:20:003
161853899161,12cyclictest1884641-21sleep10:20:003
161853899161,12cyclictest1820324-21taskset09:40:013
161853899161,12cyclictest1795971-21taskset09:25:103
161853899161,12cyclictest1780363-21taskset09:15:163
161853899161,12cyclictest1677220-21turbostat07:55:003
161853899157,6cyclictest20694112sleep312:10:453
1618538991513,0cyclictest0-21swapper/310:50:173
161853899151,12cyclictest1834800-21taskset09:46:473
161853899151,12cyclictest1714790-21taskset08:24:153
161853899151,12cyclictest1708486-21chrt08:18:433
161853899151,11cyclictest2079364-21turbostat12:20:013
161853899151,11cyclictest2014317-21turbostat11:39:593
161853899151,11cyclictest1990117-21sleep11:25:013
161853899151,11cyclictest1971998-21taskset11:11:053
161853899151,11cyclictest1947780-21taskset10:56:433
161853899151,11cyclictest1925055-21sleep10:45:003
161853899151,11cyclictest1859534-21taskset10:02:573
161853899151,11cyclictest1842336-21taskset09:50:313
161853899151,11cyclictest1760677-21chrt09:00:183
161853899151,11cyclictest1727353-21chrt08:30:403
161853899151,11cyclictest1670605-21taskset07:45:283
161853899151,11cyclictest1645341-21chrt07:25:423
161853899151,11cyclictest1632324-21taskset07:15:233
161853899151,11cyclictest1618683-21taskset07:10:023
161853899150,12cyclictest1758771-21chrt08:57:053
161853899141,11cyclictest1733882-21chrt08:39:023
161853899141,11cyclictest1651710-21taskset07:32:063
1618538991411,1cyclictest0-21swapper/312:20:113
161853899141,10cyclictest1771191-21taskset09:05:263
161853899140,12cyclictest2038265-21chrt11:54:013
161853899140,11cyclictest1901314-21taskset10:30:143
161853899140,10cyclictest1812004-21taskset09:35:083
19498892131,9sleep11950053-21/usr/sbin/munin11:00:151
17279822131,9sleep21727988-21/usr/sbin/munin08:35:132
16901922131,9sleep01690300-21cut08:05:140
147598130,4rtkit-daemon22110-21packagekitd08:20:211
20771422120,9sleep12077393-21users12:15:241
20401392110,8sleep22041282-21grep11:55:192
20062292110,8sleep02006462-21sed11:35:000
19548402111,5sleep01954972-21python311:00:220
19015222112,6sleep01901912-21irqcore10:30:160
18923262110,8sleep21892332-21ssh10:24:052
18104392110,9sleep11810447-21ssh09:32:021
18039502110,8sleep21803969-21basename09:30:112
17940592110,4sleep01771556-21diskmemload09:21:190
16709572110,8sleep11671001-21munin-run07:50:001
147598110,7rtkit-daemon1944554-21kthreadcore10:55:180
147598110,6rtkit-daemon1774810-21kthreadcore09:10:171
20530292100,7sleep12053162-21ssh12:00:261
20150332101,5sleep21998686-21kworker/u16:0+rpciod11:40:152
19887782100,7sleep11988786-21ssh11:22:031
19243612100,8sleep11924368-21sh10:43:311
18588052100,1sleep00-21swapper/010:01:200
18536892100,3sleep21854829-21tr10:00:162
17838022100,1sleep20-21swapper/209:15:202
17818342100,7sleep11783801-21grep09:15:191
16353702101,2sleep20-21swapper/207:20:202
16331262100,1sleep20-21swapper/207:20:012
16182572100,1sleep30-21swapper/307:08:233
147598100,6rtkit-daemon2076608-21kthreadcore12:15:190
147598100,6rtkit-daemon1998686-21kworker/u16:0-nfsiod11:54:001
147598100,6rtkit-daemon1746494-21kworker/u16:3-nfsiod09:20:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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