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2023-03-22 - 05:03

x86 Intel Xeon E5620 @2400 MHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, 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 -Up99 -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 rackcslot0.osadl.org (updated Wed Mar 22, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2225421830,5sleep182099cyclictest00:22:031
2401421540,7sleep782899cyclictest21:31:2913
3064721340,13sleep60-21swapper/619:16:2512
3082129103,21sleep50-21swapper/519:20:4111
1205821250,1sleep60-21swapper/621:21:5012
32610212090,26sleep30-21swapper/319:19:039
325862119104,10sleep150-21swapper/1519:18:437
1960721180,1sleep70-21swapper/700:49:1013
31592211685,25sleep130-21swapper/1319:16:335
152421140,7sleep1383699cyclictest22:46:295
2656721120,1sleep130-21swapper/1322:54:305
32531210791,9sleep10-21swapper/119:17:571
2806221070,0sleep110-21swapper/1121:58:023
997221040,6sleep1283599cyclictest20:46:384
997221040,6sleep1283599cyclictest20:46:384
3104721040,1sleep10-21swapper/122:37:431
2396121040,0sleep10-21swapper/100:45:351
100721040,0sleep5571ktimersoftd/521:54:1111
2790321030,1sleep00-21swapper/022:20:030
1661521020,2sleep100-21swapper/1023:45:332
113352990,0sleep40-21swapper/423:36:2110
87642980,1sleep140-21swapper/1400:38:356
212532980,1sleep50-21swapper/500:49:2411
225242970,7sleep782899cyclictest21:23:1113
3261829681,11sleep110-21swapper/1119:19:113
268602960,1sleep90-21swapper/900:13:2115
158652950,8sleep1483799cyclictest21:47:396
35129172,14sleep90-21swapper/919:21:0115
259662910,0sleep40-21swapper/400:45:5510
3258528976,9sleep140-21swapper/1419:18:426
31652890,0sleep150-21swapper/1500:18:327
2933628972,4sleep100-21swapper/1019:16:142
3253928874,10sleep80-21swapper/819:18:0414
2934428677,4sleep00-21swapper/019:16:200
273112860,0sleep00-21swapper/021:45:160
3261128561,20sleep40-21swapper/419:19:0410
3255528572,9sleep70-21swapper/719:18:1913
198442850,0sleep30-21swapper/321:44:159
255602840,1sleep1525558-21sshd00:13:117
2935228272,4sleep20-21swapper/219:16:228
3246828072,4sleep120-21swapper/1219:17:044
287182700,6sleep782899cyclictest23:03:1413
287182700,6sleep782899cyclictest23:03:1413
37952630,1sleep40-21swapper/422:34:0210
327302630,0sleep130-21swapper/1323:52:175
132172610,0sleep60-21swapper/623:01:2112
132172610,0sleep60-21swapper/623:01:2112
244972570,1sleep30-21swapper/321:52:499
322252460,2sleep632223-21sshd23:25:4112
107922420,1sleep40-21swapper/423:49:2810
43042400,8sleep983199cyclictest23:21:4415
38482400,1sleep70-21swapper/723:21:4213
200742380,0sleep130-21swapper/1322:14:075
139912380,0sleep50-21swapper/522:39:5611
825993717,18cyclictest0-21swapper/500:06:2311
64552370,0sleep30-21swapper/322:11:489
835993615,18cyclictest0-21swapper/1221:21:244
295992350,7sleep983199cyclictest21:11:2715
835993413,19cyclictest0-21swapper/1219:36:104
296652340,1sleep110-21swapper/1123:07:353
296652340,1sleep110-21swapper/1123:07:353
176192340,1sleep100-21swapper/1023:06:142
176192340,1sleep100-21swapper/1023:06:142
87732320,2sleep0969-21dbus-daemon23:53:250
265822320,2sleep626580-21sshd21:49:0712
262602320,29sleep120-21swapper/1223:34:064
143332320,0sleep80-21swapper/822:39:5914
74742310,1sleep90-21swapper/923:18:0015
68272310,1sleep10-21swapper/122:21:241
3272310,21sleep1197450irq/37-eth0-TxR23:25:463
294782310,27sleep110-21swapper/1123:56:173
265782310,3sleep8801rcuc/819:51:2914
172112310,1sleep60-21swapper/623:06:1012
172112310,1sleep60-21swapper/623:06:1012
154122310,16sleep60-21swapper/619:36:2812
66452300,26sleep50-21swapper/522:42:5311
56042300,1sleep150-21swapper/1522:03:277
155752300,2sleep10-21swapper/123:01:331
155752300,2sleep10-21swapper/123:01:331
125152300,2sleep1312635-21sshd23:40:485
312552290,1sleep70-21swapper/723:38:5013
298712290,2sleep100-21swapper/1022:02:182
233452290,1sleep150-21swapper/1522:54:007
198382290,2sleep00-21swapper/000:03:180
168582290,1sleep150-21swapper/1523:10:537
168582290,1sleep150-21swapper/1523:10:537
136382290,25sleep60-21swapper/600:16:0012
10292290,1sleep80-21swapper/822:33:3414
73952280,0sleep100-21swapper/1023:35:552
64842281,3sleep524022-21gdbus21:29:1911
276152280,1sleep90-21swapper/923:07:1815
276152280,1sleep90-21swapper/923:07:1815
187902280,1sleep30-21swapper/300:12:119
178822280,1sleep140-21swapper/1400:07:506
166602280,0sleep150-21swapper/1500:26:507
12332280,24sleep40-21swapper/423:52:2510
94052271,22sleep624018-21polkitd23:14:1212
94052271,22sleep624018-21polkitd23:14:1212
84942270,0sleep50-21swapper/522:30:0211
49932270,1sleep10-21swapper/123:52:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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