You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-02-06 - 13:35

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, 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 -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 rackaslot0.osadl.org (updated Mon Feb 06, 2023 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
280662830,0sleep128065-21munin-node22:35:141
145092790,0sleep214508-21id00:18:552
203412630,0sleep020337-21sshd22:31:360
288512580,0sleep00-21swapper/021:43:250
162222580,0sleep00-21swapper/000:09:400
159602580,0sleep115959-21bash21:19:191
70272570,0sleep00-21swapper/023:25:090
261952560,0sleep30-21swapper/322:37:573
19312560,1sleep31916-21sshd00:14:353
93612550,1sleep29325-21sshd23:16:422
125802550,0sleep10-21swapper/122:02:061
66052540,1sleep36589-21sshd22:15:583
233432540,0sleep123340-21bash23:03:381
15542540,1sleep119-21rcuc/122:18:271
8862530,0sleep1885-21bash22:27:001
303332530,0sleep230309-21sshd23:01:192
280832530,0sleep10-21swapper/100:32:441
224302530,0sleep20-21swapper/221:34:152
140612530,0sleep10-21swapper/100:28:151
56552520,1sleep35636-21sshd00:24:213
189492520,0sleep20-21swapper/222:25:422
178312520,0sleep10-21swapper/122:57:211
148122520,1sleep014808-21sshd23:22:570
145992520,1sleep314593-21bash21:27:463
1447825227,21sleep00-21swapper/019:06:420
131182520,0sleep10-21swapper/121:13:181
9372510,1sleep2929-21sshd21:49:372
59882510,1sleep35987-21id22:13:053
50992510,0sleep30-21swapper/323:47:553
49752510,0sleep00-21swapper/023:30:340
241502510,0sleep10-21swapper/122:46:231
212142510,2sleep337-21rcuc/300:16:193
155712510,0sleep00-21swapper/023:51:410
1445525128,9sleep10-21swapper/119:06:261
298692500,0sleep20-21swapper/221:57:502
175062500,0sleep00-21swapper/022:28:320
63892490,0sleep20-21swapper/223:50:512
217662490,0sleep10-21swapper/123:29:181
1458624926,19sleep20-21swapper/219:08:042
28192480,1sleep27798-21diskmemload22:41:372
227392480,0sleep122737-21sshd23:40:441
222602480,0sleep222254-21sshd22:08:482
186122480,0sleep118611-21sshd21:28:081
162542480,0sleep07798-21diskmemload21:27:550
35392470,0sleep20-21swapper/200:33:342
172932470,0sleep00-21swapper/022:19:540
1352924624,18sleep30-21swapper/319:05:203
45542450,1sleep04552-21bash22:24:310
57002440,0sleep00-21swapper/000:27:260
44582440,0sleep10-21swapper/123:30:311
29622440,0sleep00-21swapper/022:58:570
250192440,0sleep20-21swapper/223:43:542
265002430,0sleep30-21swapper/322:06:123
160662390,0sleep30-21swapper/323:51:443
277222220,0sleep07798-21diskmemload22:46:430
14998992120,1cyclictest10657-21sshd23:14:010
15000992018,1cyclictest0-21swapper/200:03:282
118292200,2sleep011787-21sshd00:03:030
302792190,0sleep30-21swapper/323:10:023
15000991917,1cyclictest3016-21sshd23:27:372
14999991917,1cyclictest8774-21sshd00:15:131
1499899194,12cyclictest0-21swapper/021:11:340
41182180,1sleep14102-21sshd21:55:281
198862180,0sleep019863-21sshd21:51:100
14999991816,1cyclictest9158-21sshd23:45:201
101932180,1sleep10-21swapper/100:12:091
324622170,1sleep232466-21sshd22:32:432
248592170,0sleep20-21swapper/223:06:362
1500099179,3cyclictest26617-21sshd21:54:442
14999991715,1cyclictest7814-21sshd22:13:151
1499899177,9cyclictest31314-21sshd21:55:080
14998991716,1cyclictest32026-21sshd22:09:390
66012160,0sleep20-21swapper/221:38:352
273192160,1sleep20-21swapper/221:14:352
1500099169,2cyclictest3912-21sshd00:14:482
1500099163,3cyclictest15593-21sshd23:57:272
1500099162,2cyclictest11107-21sshd22:36:342
15000991614,1cyclictest11646-21munin-run20:10:002
1500099161,14cyclictest26035-21bash00:38:572
14999991614,1cyclictest17042-21sshd23:23:091
14999991611,2cyclictest19376-21sshd23:54:571
1499899160,1cyclictest0-21swapper/023:01:120
1499899160,1cyclictest0-21swapper/000:13:340
1499899160,15cyclictest0-21swapper/023:07:070
15001991511,1cyclictest31305-21sshd22:32:373
1500099154,10cyclictest0-21swapper/200:24:542
1500099153,5cyclictest5868-21sshd23:13:352
1500099153,2cyclictest506-21sshd22:18:232
1500099152,3cyclictest18252-21sshd23:31:472
15000991512,2cyclictest19685-21sshd23:23:232
15000991512,2cyclictest0-21swapper/222:49:142
1500099151,13cyclictest0-21swapper/200:26:142
15000991510,2cyclictest0-21swapper/221:27:022
1500099150,3cyclictest31240-21id21:43:392
1499999155,1cyclictest29684-21sshd23:35:361
1499999155,1cyclictest21194-21sshd21:45:311
1499899158,6cyclictest0-21swapper/000:30:130
1499899157,5cyclictest0-21swapper/022:13:000
1499899151,13cyclictest0-21swapper/022:38:170
1499899150,1cyclictest0-21swapper/023:15:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional