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2026-03-12 - 11:57
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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 rack0slot0.osadl.org (updated Thu Mar 12, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1169821600,0sleep411643-21sshd23:49:154
2709821570,0sleep727047-21sshd21:50:557
2709821570,0sleep727047-21sshd21:50:557
1805921390,3sleep5157099cyclictest23:34:175
1995321270,0sleep5581rcuc/523:25:115
440021260,4sleep5157099cyclictest00:34:455
2356421250,3sleep3155799cyclictest23:31:273
1906921120,2sleep3155799cyclictest21:42:583
1677321120,0sleep3401rcuc/321:53:323
1677321120,0sleep3401rcuc/321:53:323
185422880,1sleep40-21swapper/422:25:314
84642860,1sleep28465-21systemd-cgroups23:12:262
286202860,1sleep3401rcuc/300:05:173
202402860,1sleep620243-21kworker/u16:223:55:426
119052860,2sleep30-21swapper/323:35:273
319962840,3sleep3155799cyclictest00:11:343
198252830,1sleep319824-21bash22:54:393
16802830,1sleep51677-21sshd22:38:315
109492830,1sleep010945-21sshd22:28:150
272852820,0sleep727282-21sshd22:51:557
154032810,1sleep50-21swapper/521:45:485
154032810,1sleep50-21swapper/521:45:485
272482800,1sleep127246-21bash23:50:001
284702790,1sleep00-21swapper/021:32:450
203872790,1sleep50-21swapper/500:08:005
150942790,1sleep415097-21grepconf.sh23:44:504
77652780,0sleep50-21swapper/522:18:585
35022780,0sleep10-21swapper/123:39:421
230512780,1sleep40-21swapper/400:01:574
58842770,1sleep75881-21sshd00:21:007
58842770,1sleep75881-21sshd00:21:007
299272770,0sleep40-21swapper/422:42:544
223672770,0sleep022365-21bash23:19:130
201122770,1sleep220103-21sshd22:04:202
111622770,1sleep611138-21sshd22:42:006
302392760,1sleep530209-21sshd00:22:105
302392760,1sleep530209-21sshd00:22:105
230732760,1sleep623072-21bash22:59:236
147122760,1sleep314713-21sshd22:08:393
131572760,1sleep40-21swapper/400:21:214
131572760,1sleep40-21swapper/400:21:214
263062750,0sleep60-21swapper/621:12:556
93962740,0sleep30-21swapper/300:24:173
93962740,0sleep30-21swapper/300:24:173
64712740,1sleep26476-21bash00:08:532
257192740,1sleep325718-21grepconf.sh23:23:573
157262740,1sleep10-21swapper/122:45:161
99832730,1sleep00-21swapper/021:37:580
99832730,1sleep00-21swapper/021:37:580
325272730,1sleep432523-21sshd22:01:504
195242730,0sleep10-21swapper/123:34:211
15892730,1sleep10-21swapper/123:53:211
3942720,0sleep00-21swapper/023:02:540
3942720,0sleep00-21swapper/023:02:540
311112720,1sleep631087-21sshd23:22:406
265272720,0sleep50-21swapper/523:36:105
190342720,0sleep5581rcuc/521:15:355
17692720,0sleep6671rcuc/623:33:306
295632710,0sleep00-21swapper/023:07:190
295632710,0sleep00-21swapper/023:07:190
217442710,0sleep5581rcuc/523:03:555
217442710,0sleep5581rcuc/523:03:555
136482710,0sleep20-21swapper/222:22:162
107752710,3sleep2155299cyclictest21:24:212
283242700,0sleep50-21swapper/523:43:555
189102700,0sleep60-21swapper/623:05:176
189102700,0sleep60-21swapper/623:05:176
151062700,0sleep00-21swapper/022:31:280
310682690,0sleep20-21swapper/223:36:222
318222680,0sleep50-21swapper/500:19:145
318222680,0sleep50-21swapper/500:19:145
22112680,0sleep20-21swapper/222:26:172
91682660,4sleep0154099cyclictest23:36:530
260272660,0sleep10-21swapper/121:28:041
215692660,1sleep20-21swapper/223:32:542
211752660,0sleep40-21swapper/421:41:314
88042640,0sleep30-21swapper/321:25:433
315812630,4sleep5157099cyclictest21:13:105
200862620,0sleep40-21swapper/422:30:124
65022580,0sleep00-21swapper/000:15:000
9122560,1sleep2913-21grep00:02:282
123025543,7sleep70-21swapper/719:08:557
130125444,6sleep40-21swapper/419:09:484
116025029,16sleep60-21swapper/619:08:056
153952480,0sleep00-21swapper/000:33:430
64122460,3sleep2155299cyclictest00:36:182
3163824535,6sleep50-21swapper/519:05:075
117524535,6sleep30-21swapper/319:08:113
93924332,7sleep00-21swapper/019:05:340
123324333,6sleep10-21swapper/119:08:561
124324230,7sleep20-21swapper/219:09:062
155799293,18cyclictest0-21swapper/320:05:173
70502280,1sleep47042-21bash21:59:104
45572280,1sleep50-21swapper/521:59:025
155799283,19cyclictest0-21swapper/320:39:303
155799283,18cyclictest0-21swapper/319:55:173
155799283,17cyclictest0-21swapper/321:10:163
155799282,18cyclictest0-21swapper/321:05:313
155799273,18cyclictest0-21swapper/320:58:373
155799273,18cyclictest0-21swapper/320:25:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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