You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-06-05 - 01:26

x86 Intel Core i3-2100T @2500 MHz, Linux 4.14.28-rt23 (Profile)

Latency plot of system in rack #0, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -q
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 rack0slot0.osadl.org (updated Mon Jun 05, 2023 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3160121690,0sleep131524-21sshd22:44:461
1926821340,1sleep119261-21bash23:13:311
1136521250,1sleep311334-21sshd22:22:423
2296021240,0sleep50-21swapper/523:23:465
2838121140,1sleep328382-21sshd21:44:033
2838121140,1sleep328382-21sshd21:44:033
1213721110,0sleep20-21swapper/223:13:172
556621100,0sleep70-21swapper/723:42:167
3046021090,0sleep30-21swapper/322:49:133
3046021090,0sleep30-21swapper/322:49:123
40292950,1sleep43960-21sshd22:28:054
293842950,1sleep50-21swapper/522:39:055
299632930,1sleep6671rcuc/622:57:016
16232910,1sleep70-21swapper/721:41:597
16232910,1sleep70-21swapper/721:41:587
281082890,0sleep60-21swapper/622:19:586
266722870,1sleep326630-21sshd22:58:033
262202870,1sleep326223-21bash23:14:543
106502870,1sleep00-21swapper/023:25:320
317792860,1sleep51-21systemd21:13:515
259602860,0sleep70-21swapper/700:16:397
313032850,1sleep10-21swapper/122:22:171
52332840,1sleep45164-21sshd23:22:014
42152840,1sleep11-21systemd00:09:121
30082840,1sleep50-21swapper/522:58:215
225372840,0sleep40-21swapper/423:12:314
141262840,0sleep10-21swapper/100:19:381
52242830,0sleep25140-21sshd22:38:132
237152830,1sleep423716-21sshd21:24:474
64822820,0sleep00-21swapper/022:45:000
308322820,0sleep00-21swapper/021:50:490
292862820,0sleep10-21swapper/100:29:081
62922810,1sleep5581rcuc/500:36:095
40182810,1sleep63972-21sshd00:20:236
91292800,1sleep29128-21sshd22:23:462
320802800,1sleep732040-21sshd22:35:467
232062790,1sleep00-21swapper/000:30:030
156972790,0sleep50-21swapper/521:36:525
113382790,1sleep311340-21tty21:51:173
105422790,1sleep110508-21sshd22:51:511
301902780,1sleep630181-21cp22:04:176
241622780,0sleep224168-21kworker/u16:321:47:142
196482780,1sleep519637-21sshd00:14:135
195822780,0sleep10-21swapper/100:31:001
93602770,0sleep60-21swapper/621:24:186
74192770,0sleep70-21swapper/722:50:377
30342770,1sleep5581rcuc/522:20:135
249452770,0sleep70-21swapper/700:34:357
190402770,1sleep6666-21dbus-daemon21:14:326
128882770,0sleep30-21swapper/300:09:303
115082770,1sleep3411ktimersoftd/322:13:453
60762760,1sleep76041-21sshd23:33:187
27232760,1sleep02682-21sshd23:30:550
124352760,1sleep6681ktimersoftd/623:00:536
109852760,0sleep70-21swapper/721:35:337
311372750,0sleep531140-21sshd23:15:035
267972750,1sleep342-21ksoftirqd/300:34:393
217392750,0sleep60-21swapper/600:07:326
210232750,0sleep50-21swapper/523:11:195
185512750,0sleep20-21swapper/222:48:482
185512750,0sleep20-21swapper/222:48:482
161442750,1sleep516138-21sshd21:51:265
130782750,0sleep70-21swapper/722:05:567
312152740,0sleep10-21swapper/122:16:401
166562740,0sleep10-21swapper/121:14:271
117192740,1sleep011690-21sshd22:01:230
317992730,1sleep60-21swapper/623:48:486
317992730,1sleep60-21swapper/623:48:476
252772730,1sleep025273-21bash21:16:570
170772730,1sleep717042-21sshd22:17:187
131422730,0sleep40-21swapper/400:07:144
68362720,1sleep716109-21kworker/7:423:10:487
240472720,0sleep60-21swapper/600:28:576
214452720,4sleep52380699cyclictest21:32:345
169252720,0sleep00-21swapper/000:17:280
150972720,3sleep32379199cyclictest23:48:133
150972720,3sleep32379199cyclictest23:48:133
89742710,0sleep10-21swapper/123:40:101
212472710,0sleep20-21swapper/220:10:172
19832710,1sleep71984-21sshd22:30:177
139592710,1sleep40-21swapper/422:14:594
288672700,0sleep70-21swapper/721:19:217
138312700,0sleep00-21swapper/021:10:570
184402680,0sleep20-21swapper/222:17:212
17012670,0sleep30-21swapper/323:03:563
214612640,1sleep60-21swapper/623:11:206
233282630,1sleep523297-21sshd23:09:115
296182620,0sleep70-21swapper/700:11:107
26832620,1sleep02685-21sshd21:24:040
314262610,0sleep20-21swapper/223:58:542
27162610,0sleep50-21swapper/522:15:395
11242610,1sleep2321ktimersoftd/200:32:382
118482600,0sleep70-21swapper/723:26:457
246682530,1sleep6666-21dbus-daemon23:31:416
2150824927,7sleep20-21swapper/219:05:052
2150724837,7sleep10-21swapper/119:05:031
2258424725,7sleep70-21swapper/719:05:257
2346224636,6sleep60-21swapper/619:08:536
94442450,1sleep342-21ksoftirqd/322:18:103
36392450,0sleep0121rcuc/000:12:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional