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2024-05-28 - 05:55
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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 50 highest latencies:
System rackcslot2.osadl.org (updated Tue May 28, 2024 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2725827561,9sleep00-21swapper/019:04:020
2691526855,8sleep10-21swapper/119:00:301
235052680,1sleep00-21swapper/022:08:550
152502680,1sleep081ktimersoftd/021:14:330
140692680,0sleep10-21swapper/123:23:221
48732650,0sleep10-21swapper/123:54:571
269952180,0sleep10-21swapper/100:24:581
110772180,0sleep00-21swapper/022:35:140
27505991716,0cyclictest15803-21ssh21:58:271
27504991715,1cyclictest285802sleep000:26:470
27505991616,0cyclictest26968-21ssh22:13:201
27505991616,0cyclictest21818-21ssh21:22:581
27505991616,0cyclictest16915-21ssh23:26:351
27505991616,0cyclictest0-21swapper/120:10:041
27505991616,0cyclictest0-21swapper/119:50:201
27505991614,1cyclictest5390-21apache_accesses21:44:541
27505991610,6cyclictest0-21swapper/122:25:081
27505991610,6cyclictest0-21swapper/100:31:361
27505991610,1cyclictest0-21swapper/122:23:241
27504991615,1cyclictest16770-21ls21:15:100
27504991615,0cyclictest3770-21rm21:41:470
27504991615,0cyclictest31808-21rm00:30:360
27505991515,0cyclictest22425-21ssh22:06:421
27505991515,0cyclictest12799-21awk00:05:111
27505991515,0cyclictest0-21swapper/120:45:031
27505991513,1cyclictest633-21nscd20:15:031
27505991512,2cyclictest10467-21apache200:13:191
27505991510,5cyclictest0-21swapper/121:32:211
27505991510,5cyclictest0-21swapper/120:01:381
27505991510,5cyclictest0-21swapper/119:21:021
27505991510,4cyclictest0-21swapper/120:52:361
27505991510,1cyclictest0-21swapper/123:14:001
27505991510,1cyclictest0-21swapper/123:08:261
27505991510,0cyclictest0-21swapper/121:12:581
27505991510,0cyclictest0-21swapper/119:05:301
27504991515,0cyclictest29707-21taskset23:44:540
27504991515,0cyclictest28837-21ssh21:31:520
27504991515,0cyclictest0-21swapper/019:25:410
27504991510,5cyclictest0-21swapper/022:26:570
27504991510,5cyclictest0-21swapper/020:45:420
27504991510,5cyclictest0-21swapper/019:47:140
27504991510,4cyclictest0-21swapper/022:33:420
27504991510,0cyclictest0-21swapper/023:33:160
27504991510,0cyclictest0-21swapper/021:20:070
27505991414,0cyclictest0-21swapper/122:30:391
27505991412,1cyclictest17241-21ssh21:15:471
27505991412,1cyclictest11872-21ssh22:36:031
27505991411,3cyclictest0-21swapper/123:02:241
27505991411,2cyclictest10467-21apache223:35:241
27505991410,4cyclictest0-21swapper/123:49:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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