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2025-07-07 - 02:11
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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 100 highest latencies:
System rackcslot0.osadl.org (updated Sun Jul 06, 2025 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2267421720,6sleep43055899cyclictest00:25:0910
297832131116,10sleep150-21swapper/1519:06:187
30008212092,23sleep20-21swapper/219:09:178
299242120105,10sleep90-21swapper/919:08:0415
29837211794,18sleep120-21swapper/1219:07:034
596221140,1sleep80-21swapper/823:56:2014
1397921100,1sleep50-21swapper/522:08:4511
28168210992,11sleep80-21swapper/819:05:5514
1260321090,2sleep121-21systemd00:38:234
29835210791,10sleep100-21swapper/1019:07:012
2303021070,6sleep43055899cyclictest22:56:3710
29849210592,9sleep70-21swapper/719:07:1413
30118210491,9sleep40-21swapper/419:10:0710
2157521010,2sleep15138-21ksoftirqd/1500:01:327
955721000,1sleep70-21swapper/721:53:4913
1106021000,1sleep150-21swapper/1521:21:357
1106021000,1sleep150-21swapper/1521:21:357
2993829975,19sleep60-21swapper/619:08:1712
227842990,2sleep141068-21dbus-daemon22:38:366
18902980,2sleep15138-21ksoftirqd/1522:28:597
291092960,4sleep141291ktimersoftd/1421:23:426
291092960,4sleep141291ktimersoftd/1421:23:426
109892960,1sleep00-21swapper/023:27:510
133442950,1sleep140-21swapper/1400:31:126
95152940,0sleep30-21swapper/323:45:499
95152940,0sleep30-21swapper/323:45:499
327002940,1sleep150-21swapper/1523:12:037
217562940,0sleep120-21swapper/1221:40:474
132752940,1sleep70-21swapper/721:47:0713
225152930,2sleep141281rcuc/1421:15:576
225152930,2sleep141281rcuc/1421:15:576
292362920,1sleep100-21swapper/1022:50:182
320632910,0sleep30-21swapper/323:30:189
291162910,1sleep40-21swapper/421:20:2010
291162910,1sleep40-21swapper/421:20:2010
137952910,0sleep90-21swapper/921:29:3015
25792900,0sleep40-21swapper/400:19:1610
3001928975,10sleep130-21swapper/1319:09:285
170532890,0sleep40-21swapper/423:54:0710
170532890,0sleep40-21swapper/423:54:0710
97892880,5sleep103056799cyclictest22:22:452
76502870,0sleep80-21swapper/822:25:5514
210302870,1sleep140-21swapper/1421:48:036
2981628672,4sleep140-21swapper/1419:06:496
114942860,1sleep50-21swapper/500:38:1611
2997828575,6sleep110-21swapper/1119:08:543
234582850,1sleep90-21swapper/923:14:5315
189802850,2sleep43055899cyclictest23:28:4310
144942850,1sleep80-21swapper/800:38:3514
73302840,1sleep120-21swapper/1222:15:014
185692840,0sleep150-21swapper/1521:12:137
185692840,0sleep150-21swapper/1521:12:137
2991428375,4sleep30-21swapper/319:07:589
2984328375,4sleep10-21swapper/119:07:081
2980728375,4sleep50-21swapper/519:06:4011
290422830,0sleep70-21swapper/700:09:4113
198412830,0sleep100-21swapper/1022:20:202
2985928272,6sleep00-21swapper/019:07:230
131942820,0sleep100-21swapper/1021:25:472
136312810,0sleep140-21swapper/1422:33:476
51732780,6sleep103056799cyclictest00:26:352
238732780,0sleep60-21swapper/621:23:0212
238732780,0sleep60-21swapper/621:23:0212
194182780,0sleep10971ktimersoftd/1022:09:222
124012700,6sleep63056299cyclictest23:13:3012
320272660,3sleep032025-21systemd-cgroups22:07:040
53402620,23sleep15337-21sshd21:17:361
53402620,23sleep15337-21sshd21:17:361
1139099570,17rtkit-daemon0-21swapper/722:38:0013
34962510,1sleep140-21swapper/1420:35:346
3056599473,41cyclictest0-21swapper/923:47:2015
3056599473,41cyclictest0-21swapper/923:47:2015
30562994510,32cyclictest1348-21nfsd23:01:0612
125802450,2sleep121069-21NetworkManager23:31:314
125802450,2sleep121069-21NetworkManager23:31:314
1139099450,2rtkit-daemon26671-21gdbus22:45:1113
3056599446,35cyclictest6988-21systemd23:02:1115
1139099440,18rtkit-daemon0-21swapper/719:29:0413
30565994321,18cyclictest0-21swapper/921:41:2215
14362420,0sleep70-21swapper/722:00:1413
1139099420,1rtkit-daemon0-21swapper/722:47:1313
3056599418,31cyclictest0-21swapper/922:06:0715
3056599417,29cyclictest18041-21systemd-cgroups00:31:4615
3056599416,33cyclictest0-21swapper/923:53:2215
3056599416,33cyclictest0-21swapper/923:53:2215
30565994120,17cyclictest0-21swapper/921:59:2715
30565994111,28cyclictest1-21systemd00:29:4615
30562994112,12cyclictest5261-21jpegtopnm22:00:3612
1139099410,2rtkit-daemon1068-21dbus-daemon23:54:2913
1139099410,2rtkit-daemon1068-21dbus-daemon23:54:2913
30565994013,25cyclictest0-21swapper/922:15:3715
30565994011,26cyclictest0-21swapper/921:32:3215
30565994010,28cyclictest0-21swapper/923:56:2215
3056299407,16cyclictest0-21swapper/621:27:3312
3056299405,32cyclictest1245-21gdbus22:25:5712
30562994010,27cyclictest21784-21sshd21:15:5512
30562994010,27cyclictest21784-21sshd21:15:5512
3056599399,27cyclictest0-21swapper/900:05:2415
3056599399,21cyclictest30697-21systemd-cgroups23:22:4515
3056599397,29cyclictest1068-21dbus-daemon00:36:0715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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