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2026-01-07 - 12:41
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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
Characteristics of the 100 highest latencies:
System rack3slot4.osadl.org (updated Wed Jan 07, 2026 00:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1631414212561229,17sleep50-21swapper/519:05:205
16328569919559,93cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:30:350
16328569919559,93cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:30:350
16328569913093,30cyclictest1864510-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:22:370
163286599124111,6cyclictest1700468-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:27:012
163286599124111,6cyclictest1700468-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:27:012
189843921210,4sleep20-21swapper/200:10:182
189843921210,4sleep20-21swapper/200:10:172
16328569911983,28cyclictest1733453-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:05:220
16328569911742,52cyclictest1715830-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:52:120
16328609911399,7cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:57:181
16328569911282,23cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:12:200
1632856991121,50cyclictest0-21swapper/000:35:190
16328569911182,24cyclictest210-21kswapd023:50:230
16328569911124,81cyclictest1832805-21ntpq23:15:370
16328569910978,24cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:47:160
16328569910978,24cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:47:160
16328569910927,7cyclictest1640673-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
19:47:150
16328569910827,44cyclictest13-21ksoftirqd/000:05:260
16328569910827,44cyclictest13-21ksoftirqd/000:05:250
16328569910765,34cyclictest1671648-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
21:15:340
1632856991071,50cyclictest1681949-21ssh21:10:180
16328609910690,8cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:50:121
16328609910690,8cyclictest1634531-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:20:361
16328609910690,8cyclictest1634531-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:20:351
16328569910610,15cyclictest1904314-21/usr/sbin/munin00:15:230
16328569910610,15cyclictest1904314-21/usr/sbin/munin00:15:220
16328699910591,7cyclictest1634531-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:50:343
16328699910591,7cyclictest1634531-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
19:50:333
16328569910577,24cyclictest210-21kswapd000:10:260
16328569910577,24cyclictest210-21kswapd000:10:250
16328699910492,8cyclictest1759996-21bingrep22:15:263
16328569910376,23cyclictest210-21kswapd021:55:270
16328659910192,5cyclictest210-21kswapd022:00:282
16328569910139,32cyclictest0-21swapper/020:55:190
16328569910127,7cyclictest14-21rcu_preempt22:00:130
16328699910089,5cyclictest1681149-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:32:043
16328699910089,5cyclictest1681149-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:32:043
16328659910086,7cyclictest1823034-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:47:282
16328569910046,24cyclictest1823034-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:35:350
16328569910029,6cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:40:540
16328569910029,6cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:40:540
1632856991002,27cyclictest0-21swapper/022:55:240
1632869999987,6cyclictest1706698-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
21:38:343
1632856999867,23cyclictest1715830-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:47:070
1632856999841,14cyclictest1917759-21gcc00:25:380
1632856999830,14cyclictest68950irq/527-eth0-Tx23:30:120
1632856999830,14cyclictest68950irq/527-eth0-Tx23:30:120
1632869999788,6cyclictest210-21kswapd023:35:163
1632856999742,27cyclictest15-21rcuc/023:45:340
1632856999732,14cyclictest68950irq/527-eth0-Tx22:14:190
1632856999730,44cyclictest0-21swapper/022:50:250
1632878999690,3cyclictest0-21swapper/522:45:265
1632878999690,3cyclictest0-21swapper/522:45:265
1632856999631,7cyclictest13-21ksoftirqd/022:15:350
163285699962,50cyclictest0-21swapper/000:30:240
1632878999589,3cyclictest0-21swapper/521:22:005
1632869999582,7cyclictest1840356-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:22:233
163285699954,28cyclictest0-21swapper/023:40:240
1632856999535,14cyclictest68950irq/527-eth0-Tx20:50:180
1632856999531,15cyclictest69150irq/529-eth0-Tx21:30:370
1632856999531,15cyclictest69150irq/529-eth0-Tx21:30:370
1632869999467,8cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:39:213
1632869999467,8cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:39:203
1632860999480,7cyclictest1864510-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:22:401
1632856999462,24cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:27:220
1632856999360,25cyclictest1653465-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
20:31:550
163285699933,63cyclictest69250irq/530-eth0-Tx21:20:210
1632865999277,8cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:50:322
1632860999279,6cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:26:341
1632856999259,24cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:02:280
1632856999227,30cyclictest69250irq/530-eth0-Tx22:20:340
1632874999186,2cyclictest0-21swapper/422:50:124
1632874999181,5cyclictest1899096-21ssh00:10:264
1632874999181,5cyclictest1899096-21ssh00:10:254
1632869999179,6cyclictest1864510-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
00:26:353
1632865999149,20cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:14:112
163285699912,28cyclictest1716428-21/usr/sbin/munin21:40:280
1632856999030,34cyclictest1681149-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
21:35:300
1632856999025,4cyclictest69250irq/530-eth0-Tx23:20:380
1632856998957,23cyclictest1651270-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
19:56:460
163285699895,18cyclictest69250irq/530-eth0-Tx23:05:450
1632869998876,6cyclictest1653465-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
20:48:343
1632874998774,8cyclictest1880634-21ssh23:55:214
1632869998776,7cyclictest210-21kswapd022:40:243
1632869998776,7cyclictest210-21kswapd022:40:243
1632869998775,6cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:09:343
1632856998655,24cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:35:150
1632856998655,24cyclictest1767391-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
22:35:150
1632856998646,37cyclictest1745060-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
22:28:200
1632878998579,3cyclictest0-21swapper/521:05:015
1632874998579,3cyclictest0-21swapper/423:02:194
1632869998574,5cyclictest1752524-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
22:23:103
1632869998573,6cyclictest1653465-21kworker/u12:0+events_unbound@
flush_memcg_stats_dwork
20:14:333
1632869998472,6cyclictest1816695-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
23:04:243
1632869998472,6cyclictest1715830-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
21:47:353
1632869998471,6cyclictest1881385-21kworker/u12:2+events_unbound@
flush_memcg_stats_dwork
00:01:063
1632860998470,7cyclictest1873550-21kworker/u12:1+events_unbound@
flush_memcg_stats_dwork
23:51:101
1632856998444,15cyclictest1823034-21kworker/u12:3+events_unbound@
flush_memcg_stats_dwork
23:55:190
1632874998378,2cyclictest0-21swapper/423:40:364
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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