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2024-07-27 - 08:16
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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 100 highest latencies:
System rackbslot1.osadl.org (updated Sat Jun 29, 2024 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13340892216170,36sleep10-21swapper/107:06:401
13341812215191,13sleep00-21swapper/007:07:520
13343492204179,14sleep20-21swapper/207:09:592
13340412204180,13sleep30-21swapper/307:06:023
133457499950,2cyclictest1428675-21snmp_ryswitch2.09:05:012
1334571997855,3cyclictest1526727-21chrome11:05:001
133457499570,19cyclictest1476896-21snmp_wlanpowerc10:05:012
1334579995550,3cyclictest1533334-31munin-html11:10:313
1334571995551,3cyclictest1488269-31munin-html10:15:391
1334579995442,11cyclictest1388463-21/usr/share/muni08:15:093
1334574995350,2cyclictest1380053-21snmp_wanswitch.08:05:012
1334569995148,2cyclictest1416727-21kworker/u8:1+flush-179:009:35:470
1334569995145,4cyclictest1419677-31munin-html08:50:420
1334571994945,3cyclictest1313324-21kworker/u8:0+flush-179:007:25:001
1334579994842,4cyclictest1567506-21/usr/share/muni11:55:193
1334579994745,1cyclictest1526800-21/usr/sbin/munin11:05:003
1334574994741,4cyclictest1600231-21/usr/share/muni12:35:072
1334571994745,1cyclictest0-21swapper/112:05:001
1334579994540,3cyclictest1492511-31munin-html10:20:383
1334574994538,5cyclictest1534854-21/usr/share/muni11:15:132
1334569994541,3cyclictest1436128-21kworker/u8:2+flush-179:009:15:290
1334569994536,7cyclictest7507-21ThreadPoolForeg07:50:350
1334579994440,3cyclictest1500619-31munin-html10:30:403
1334579994439,3cyclictest1562896-21latency_hist11:50:013
1334579994439,3cyclictest1551021-21/usr/share/muni11:35:083
1334574994422,21cyclictest0-21swapper/208:20:042
1334571994441,2cyclictest1447669-31munin-graph09:25:571
1334569994439,3cyclictest1416727-21kworker/u8:1+flush-179:009:10:490
1334579994338,4cyclictest7505-21ThreadPoolForeg12:15:403
1334574994335,7cyclictest1367409-21kworker/2:2+pm08:02:002
1334574994333,2cyclictest1363369-21kworker/2:0+pm07:48:052
1334569994339,3cyclictest1351103-21kworker/u8:2+flush-179:008:11:200
1334569994338,3cyclictest1444337-21kworker/u8:0+flush-179:009:45:150
1334574994238,3cyclictest1408357-21kworker/u8:0+flush-179:008:50:102
1334574994234,1cyclictest1349096-21kworker/2:1+pm07:35:212
1334574994221,13cyclictest1562014-31munin-html11:45:382
1334571994240,2cyclictest1540638-21kworker/u8:4+flush-179:011:25:191
1334569994236,5cyclictest7473-21ThreadPoolForeg08:20:450
1334569994235,5cyclictest1412426-21/usr/share/muni08:45:130
1334579994137,2cyclictest7507-21ThreadPoolForeg12:05:013
1334579994136,3cyclictest1375941-21/usr/share/muni08:00:133
1334574994138,2cyclictest412219-1kworker/2:2H+kblockd09:35:052
1334574994137,3cyclictest1491277-21kworker/2:2+pm10:30:192
1334574994135,5cyclictest1367409-21kworker/2:2+pm08:34:152
1334574994135,4cyclictest1542780-21munin-update11:25:332
1334574994133,6cyclictest7503-20chrome11:35:162
1334571994136,3cyclictest1455541-31munin-graph09:35:431
1334579994019,20cyclictest7509-20Compositor08:25:173
1334574994038,1cyclictest412219-1kworker/2:2H+kblockd08:58:102
1334574994037,2cyclictest1505380-21kworker/2:0+pm11:09:202
1334574994036,4cyclictest1367409-21kworker/2:2+pm08:48:522
1334574994036,3cyclictest1371675-21latency_hist07:55:012
1334574994032,3cyclictest1443593-21ntpq09:20:362
1334571994037,2cyclictest1582833-31munin-html12:10:351
1334571994035,4cyclictest1522670-21/usr/share/muni11:00:091
1334569994038,1cyclictest1463074-1kworker/0:0H+kblockd08:02:500
1334569994037,2cyclictest1587205-31munin-graph12:15:500
1334569994036,3cyclictest1411456-31munin-html08:40:410
15107582390,1chrt1510751-21snmp_wlanpowerc10:45:023
1334574993937,1cyclictest1505380-21kworker/2:0+pm10:53:412
1334574993937,1cyclictest1367409-21kworker/2:2+pm08:37:252
1334574993937,1cyclictest1363369-21kworker/2:0+pm07:43:282
1334574993936,2cyclictest1460917-21kworker/2:0+pm10:00:312
1334574993936,2cyclictest1460917-21kworker/2:0+pm10:00:302
1334574993936,2cyclictest1309876-21kworker/2:0+pm07:15:162
1334574993936,2cyclictest1309876-21kworker/2:0+pm07:12:502
1334574993934,3cyclictest1521575-31munin-html10:55:392
1334574993934,1cyclictest1571327-21kworker/2:0+pm12:17:512
1334571993937,1cyclictest1522282-21kworker/1:2+pm11:14:551
1334571993934,4cyclictest1472788-21/usr/share/muni10:00:061
1334571993934,4cyclictest1472788-21/usr/share/muni10:00:051
1334569993936,2cyclictest1591993-21kworker/0:0+pm12:29:000
1334569993936,2cyclictest1554930-21kworker/0:1+pm12:09:400
1334569993936,2cyclictest1554930-21kworker/0:1+pm11:52:450
1334569993936,2cyclictest1463074-1kworker/0:0H+kblockd10:33:100
1334569993935,3cyclictest1321006-21kworker/u8:1+flush-179:007:10:100
1334569993931,6cyclictest7474-21Chrome_ChildIOT10:25:200
1334579993836,1cyclictest1291-21snmpd10:55:073
1334574993837,1cyclictest1501240-21kworker/2:1+pm10:41:412
1334574993837,1cyclictest1367409-21kworker/2:2+pm08:13:432
1334574993836,1cyclictest1571327-21kworker/2:0+pm12:06:172
1334574993836,1cyclictest1536074-21kworker/2:1+pm11:50:262
1334574993836,1cyclictest1505380-21kworker/2:0+pm11:10:172
1334574993836,1cyclictest1343276-21kworker/2:3+pm07:25:152
1334574993835,2cyclictest1571327-21kworker/2:0+pm12:23:062
1334574993834,2cyclictest1595139-21kworker/2:2+pm12:32:182
1334574993834,2cyclictest1571327-21kworker/2:0+pm12:04:312
1334571993836,1cyclictest1343617-21kworker/1:0+pm07:44:001
1334569993836,1cyclictest1277472-21kworker/0:1+pm10:46:530
1334569993836,1cyclictest1277472-21kworker/0:1+pm09:22:300
1334569993833,3cyclictest1277472-21kworker/0:1+pm07:33:150
1334569993832,5cyclictest1553995-31munin-html11:35:400
1334569993824,13cyclictest1463074-1kworker/0:0H+kblockd10:01:080
1334569993824,13cyclictest1463074-1kworker/0:0H+kblockd10:01:080
133456999380,35cyclictest7503-20chrome12:35:390
1334579993736,1cyclictest1542836-21kworker/3:1+pm11:33:353
1334579993735,1cyclictest1542836-21kworker/3:1+pm12:28:463
1334579993734,2cyclictest4008488-1kworker/3:1H+kblockd07:45:453
1334579993731,4cyclictest1493720-21/usr/share/muni10:25:153
1334579993721,14cyclictest1291-21snmpd07:13:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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