You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-06-30 - 21:26

x86 Intel Xeon i3-1578L v5 @2000 MHz, Linux 4.19.246-rt110 (Profile)

Latency plot of system in rack #5, slot #3
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
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack5slot3.osadl.org (updated Thu Jun 30, 2022 12:49:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15709994646,0cyclictest0-21swapper/307:15:103
1570699420,41cyclictest26218-21uname08:25:150
15712994139,1cyclictest0-21swapper/608:25:156
15710993838,0cyclictest0-21swapper/410:55:154
15707993837,0cyclictest0-21swapper/107:25:111
15707993535,0cyclictest0-21swapper/110:05:231
15707993433,0cyclictest0-21swapper/108:30:091
15706993426,5cyclictest32692-21/usr/sbin/munin08:40:170
15712993331,1cyclictest15718-21apt-get07:10:116
15711993333,0cyclictest0-21swapper/508:40:165
15709993210,6cyclictest0-21swapper/307:10:113
15707993029,1cyclictest0-21swapper/108:25:151
1571399290,2cyclictest121rcu_preempt08:10:017
15710992928,0cyclictest0-21swapper/410:20:114
15710992910,9cyclictest0-21swapper/408:50:164
15708992919,8cyclictest18372-21munin-node12:33:282
15706992927,1cyclictest0-21swapper/007:10:110
15707992827,1cyclictest0-21swapper/109:05:121
1571099270,0cyclictest0-21swapper/410:15:164
15707992727,0cyclictest0-21swapper/108:15:021
1571199260,0cyclictest0-21swapper/507:10:115
15711992525,0cyclictest0-21swapper/510:55:155
15711992525,0cyclictest0-21swapper/510:05:115
15711992510,5cyclictest0-21swapper/507:35:195
15712992410,4cyclictest0-21swapper/608:50:176
1570899244,18cyclictest18398-21kworker/2:010:09:042
15707992424,0cyclictest0-21swapper/111:43:051
15713992323,0cyclictest0-21swapper/707:50:167
15713992310,6cyclictest0-21swapper/710:16:557
15711992323,0cyclictest0-21swapper/508:10:015
15709992323,0cyclictest0-21swapper/308:10:173
15709992310,6cyclictest0-21swapper/310:06:503
15709992310,4cyclictest0-21swapper/308:40:203
15708992310,4cyclictest0-21swapper/208:10:112
1571299227,2cyclictest0-21swapper/612:30:216
15712992210,1cyclictest0-21swapper/610:03:196
15711992210,0cyclictest0-21swapper/508:50:225
1571199220,21cyclictest0-21swapper/507:40:105
15708992210,0cyclictest0-21swapper/208:50:162
15707992215,5cyclictest1680-21ntpd10:03:021
1570699225,0cyclictest0-21swapper/010:57:510
15713992121,0cyclictest0-21swapper/711:00:107
15712992110,2cyclictest0-21swapper/610:15:216
15710992117,4cyclictest17550irq/127-ahci[0010:02:414
15710992110,4cyclictest0-21swapper/408:25:204
15710992110,3cyclictest0-21swapper/408:45:204
15709992110,5cyclictest0-21swapper/311:00:103
15708992110,5cyclictest0-21swapper/208:30:092
15713992010,5cyclictest0-21swapper/710:56:067
15712992018,1cyclictest0-21swapper/607:20:166
15711992010,4cyclictest0-21swapper/512:30:195
15711992010,4cyclictest0-21swapper/509:05:235
15710992010,4cyclictest0-21swapper/408:10:014
15709992010,3cyclictest0-21swapper/310:00:203
15708992010,1cyclictest0-21swapper/207:15:012
15706992010,3cyclictest0-21swapper/010:05:240
15713991913,1cyclictest721ktimersoftd/710:09:107
15713991910,6cyclictest0-21swapper/712:32:137
15713991910,3cyclictest0-21swapper/708:25:207
15712991910,2cyclictest0-21swapper/608:10:216
15711991918,1cyclictest561ktimersoftd/510:19:355
15710991910,6cyclictest0-21swapper/410:05:114
15710991910,4cyclictest0-21swapper/407:50:204
15709991910,3cyclictest0-21swapper/308:35:233
15708991912,4cyclictest18398-21kworker/2:010:00:302
15708991910,0cyclictest0-21swapper/210:55:212
15707991919,0cyclictest0-21swapper/107:10:021
15707991910,4cyclictest0-21swapper/110:15:211
15706991910,3cyclictest0-21swapper/010:15:200
15713991816,2cyclictest0-21swapper/709:00:207
15713991812,3cyclictest73-21ksoftirqd/710:00:167
15713991810,3cyclictest0-21swapper/708:35:237
15713991810,2cyclictest0-21swapper/709:25:227
15712991810,5cyclictest0-21swapper/610:10:106
15712991810,5cyclictest0-21swapper/610:08:496
15712991810,2cyclictest0-21swapper/609:05:246
15711991810,3cyclictest0-21swapper/510:00:195
15711991810,2cyclictest0-21swapper/508:30:095
15710991810,3cyclictest0-21swapper/412:30:224
15709991810,2cyclictest0-21swapper/309:05:013
15709991810,1cyclictest0-21swapper/310:58:423
15708991815,3cyclictest996-21snmpd07:20:202
15708991810,2cyclictest0-21swapper/208:45:202
15708991810,0cyclictest0-21swapper/210:18:472
15707991812,2cyclictest0-21swapper/108:45:211
15707991810,4cyclictest0-21swapper/108:40:201
15707991810,1cyclictest0-21swapper/108:55:101
15706991810,4cyclictest0-21swapper/012:30:190
15706991810,4cyclictest0-21swapper/008:15:010
15706991810,0cyclictest0-21swapper/009:00:210
1571399178,8cyclictest73-21ksoftirqd/708:50:117
1571399176,4cyclictest0-21swapper/707:15:017
15713991716,0cyclictest0-21swapper/708:15:017
15713991710,3cyclictest0-21swapper/708:00:107
15712991717,0cyclictest0-21swapper/609:00:076
15712991717,0cyclictest0-21swapper/607:35:156
15712991710,3cyclictest0-21swapper/612:35:096
15712991710,2cyclictest0-21swapper/610:56:366
15712991710,1cyclictest0-21swapper/607:50:216
15711991710,2cyclictest0-21swapper/512:35:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional