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2022-08-20 - 04:49

x86 Intel Core i7-3770K @3500 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #2
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 -n -a4-7 -p99 -i200 -h400 -t4 -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, highest latencies:
System rack0slot2.osadl.org (updated Sat Aug 20, 2022 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2690052991412,1cyclictest3085009-21ssh22:22:237
269005299140,13cyclictest0-21swapper/723:46:257
269004799140,13cyclictest0-21swapper/423:09:324
2690052991310,2cyclictest68-21ksoftirqd/723:06:417
2690048991313,0cyclictest0-21swapper/522:21:555
269004899130,13cyclictest0-21swapper/523:45:005
269004899130,0cyclictest0-21swapper/522:32:485
269004799130,13cyclictest0-21swapper/422:22:244
269004799130,0cyclictest0-21swapper/422:33:164
269004799130,0cyclictest0-21swapper/420:59:284
2690052991212,0cyclictest0-21swapper/723:50:407
269005299120,1cyclictest918-21lldpd19:09:367
269005299120,11cyclictest2787443-21cat19:59:277
2690049991211,1cyclictest0-21swapper/622:34:006
269004899120,12cyclictest0-21swapper/521:45:205
269004799120,12cyclictest0-21swapper/400:37:304
269005299119,1cyclictest3106854-21ssh22:30:357
269005299110,1cyclictest918-21lldpd00:24:127
269005299110,10cyclictest3189851-21cat23:09:367
269005299110,10cyclictest2860564-21sed20:39:137
269005299110,10cyclictest1016-21snmpd22:27:267
2690049991111,0cyclictest0-21swapper/623:06:576
269004999110,11cyclictest0-21swapper/623:45:356
269004999110,11cyclictest0-21swapper/621:43:056
269004999110,11cyclictest0-21swapper/619:59:586
2690047991111,0cyclictest0-21swapper/423:53:224
2690047991111,0cyclictest0-21swapper/421:45:494
269004799110,11cyclictest0-21swapper/420:00:304
269005299100,9cyclictest2988448-21kthreadcore21:39:357
269005299100,9cyclictest2827321-21cut20:19:397
269005299100,9cyclictest2827321-21cut20:19:397
269005299100,9cyclictest1016-21snmpd21:06:217
269005299100,3cyclictest2780445-21kthreadcore19:54:327
269005299100,2cyclictest3381833-21rm00:34:157
269005299100,1cyclictest918-21lldpd00:33:277
269005299100,1cyclictest3040798-21munin-run22:04:127
269005299100,1cyclictest2767695-21munin-run19:49:137
269005299100,1cyclictest2703114-21/usr/sbin/munin19:14:257
2690049991010,0cyclictest0-21swapper/619:57:366
2690049991010,0cyclictest0-21swapper/619:13:476
2690048991010,0cyclictest0-21swapper/523:09:035
2690048991010,0cyclictest0-21swapper/521:42:025
269004899100,0cyclictest0-21swapper/521:04:595
269004899100,0cyclictest0-21swapper/519:09:545
2690047991010,0cyclictest0-21swapper/400:30:154
269004799100,0cyclictest0-21swapper/419:15:444
26900529990,8cyclictest2995820-21/usr/sbin/munin21:44:247
26900529990,7cyclictest796-21systemd-machine23:29:127
26900529990,2cyclictest2897702-21/usr/sbin/munin20:59:297
26900499999,0cyclictest0-21swapper/623:09:576
26900499999,0cyclictest0-21swapper/621:46:046
26900499999,0cyclictest0-21swapper/619:16:286
26900489999,0cyclictest0-21swapper/523:12:415
26900479999,0cyclictest0-21swapper/423:46:074
26900529980,7cyclictest3245380-21rm23:34:127
26900529980,7cyclictest3222488-21munin-run23:24:127
26900529980,7cyclictest3018161-21ssh21:54:127
26900529980,7cyclictest2927200-21munin-run21:14:127
26900529980,7cyclictest2804515-21latency_hist20:09:127
26900529980,2cyclictest3075176-21latency_hist22:19:127
26900529980,1cyclictest3029473-21munin-run21:59:127
26900529980,1cyclictest2984351-21cut21:39:127
26900489988,0cyclictest0-21swapper/522:25:525
26900489988,0cyclictest0-21swapper/520:59:185
26900479988,0cyclictest0-21swapper/419:55:474
26900529970,6cyclictest3324683-21ssh00:09:127
26900529970,6cyclictest3313474-21latency_hist00:04:127
26900529970,6cyclictest3313474-21latency_hist00:04:127
26900529970,6cyclictest2938588-21munin-run21:19:127
26900529970,1cyclictest3210827-21ssh23:19:117
26900529970,1cyclictest3165729-21ssh22:59:127
26900529970,1cyclictest3131634-21/usr/sbin/munin22:44:127
26900529970,1cyclictest3120238-21munin-plugin-st22:39:127
26900529970,1cyclictest2972702-21ssh21:34:127
26900499977,0cyclictest0-21swapper/600:30:496
26900499970,5cyclictest0-21swapper/620:59:596
26900489977,0cyclictest0-21swapper/519:55:185
26900489977,0cyclictest0-21swapper/500:36:055
26900489977,0cyclictest0-21swapper/500:32:275
26900489972,5cyclictest0-21swapper/520:23:415
26900489972,5cyclictest0-21swapper/520:23:415
26900479977,0cyclictest0-21swapper/422:26:204
26900529960,5cyclictest3063767-21sed22:14:137
26900529960,5cyclictest2776918-21cut19:54:137
26900529960,4cyclictest2851066-21awk20:34:127
26900529960,3cyclictest556-21systemd-journal00:14:127
26900529960,3cyclictest3301607-40updatedb23:59:127
26900529960,1cyclictest3267887-21ssh23:44:127
26900529960,1cyclictest3052260-21systemd-run22:09:127
26900499966,0cyclictest0-21swapper/622:19:206
26900499966,0cyclictest0-21swapper/620:20:476
26900499966,0cyclictest0-21swapper/620:20:476
26900489966,0cyclictest0-21swapper/520:00:025
26900479966,0cyclictest0-21swapper/423:06:134
26900479966,0cyclictest0-21swapper/420:21:384
26900479966,0cyclictest0-21swapper/420:21:384
26900479966,0cyclictest0-21swapper/419:10:414
26900529951,3cyclictest2730554-21perf19:29:127
26900529950,4cyclictest3347562-21cat00:19:127
26900529950,4cyclictest3154408-21latency_hist22:54:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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