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2024-07-27 - 03:43

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #2

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot2s.osadl.org (updated Sat Jul 27, 2024 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291350540,0irq/25-eth10-21swapper/318:54:263
2677623430,0sleep20-21swapper/218:57:002
2652423323,0sleep10-21swapper/118:54:031
2042923221,0sleep00-21swapper/018:52:260
268759972,0cyclictest9104-21munin-node22:47:322
268759972,0cyclictest17612-21munin-node23:32:392
268759971,0cyclictest271ktimersoftd/200:05:332
4160,0ktimersoftd/00-21swapper/022:43:220
28415060,0irq/27-eth0-tx-0-21swapper/020:57:420
28405060,0irq/26-eth0-rx-9909-21diskstats00:07:313
28405060,0irq/26-eth0-rx-26841-21tr21:37:403
28405060,0irq/26-eth0-rx-1234-21munin-run23:42:193
28405060,0irq/26-eth0-rx-10731-21iostat_ios23:47:373
268759962,0cyclictest9464-21cut21:07:312
268759962,0cyclictest9352-21grep19:52:442
268759962,0cyclictest8581-21cut19:07:332
268759962,0cyclictest7023-21which23:02:452
268759962,0cyclictest5168-21kthreadcore22:02:382
268759962,0cyclictest30255-21cut22:57:382
268759962,0cyclictest26335-21perl23:17:362
268759962,0cyclictest2577-21grep23:42:382
268759962,0cyclictest25759-21munin-node23:37:432
268759962,0cyclictest25007-21munin-run20:57:202
268759962,0cyclictest24753-21perf22:17:192
268759962,0cyclictest22737-21kthreadcore19:17:362
268759962,0cyclictest19215-21kthreadcore21:52:422
268759962,0cyclictest17548-21munin-node00:12:382
268759962,0cyclictest17451-21pmu-power20:47:452
268759962,0cyclictest14911-21sed22:07:482
268759962,0cyclictest11204-21cut19:32:352
268759962,0cyclictest10500-21sed23:47:342
268759961,0cyclictest0-21swapper/222:32:412
268759961,0cyclictest0-21swapper/222:27:372
268759961,0cyclictest0-21swapper/222:17:402
268759961,0cyclictest0-21swapper/221:37:402
268759960,0cyclictest0-21swapper/220:58:252
268749965,0cyclictest15801-21tr19:12:381
268749960,0cyclictest0-21swapper/123:47:281
268739966,0cyclictest0-21swapper/020:12:390
149960,0migration/024360-21sh23:53:590
149960,0migration/02066-21if_eth023:02:360
149960,0migration/017727-21fschecks_time22:32:330
35150,0ktimersoftd/30-21swapper/321:48:113
339950,0migration/35086-21kthreadcore22:22:443
339950,0migration/34895-21kthreadcore00:02:373
339950,0migration/34117-21kthreadcore19:27:393
339950,0migration/33886-21fschecks_count19:52:333
339950,0migration/331218-21smart_sdb22:57:433
339950,0migration/331117-21sh21:57:563
339950,0migration/330247-21irqrtprio19:47:393
339950,0migration/328528-21munin-node21:17:573
339950,0migration/32835-21kthreadcore23:02:403
339950,0migration/328197-21kthreadcore22:17:393
339950,0migration/324154-21kthreadcore19:42:403
339950,0migration/324012-21munin-node20:52:423
339950,0migration/318087-21idleruntime22:52:343
339950,0migration/317883-21idleruntime22:32:343
339950,0migration/31637-21fschecks_count00:22:323
339950,0migration/315900-21taskset21:31:143
339950,0migration/315210-21fschecks_count19:12:343
339950,0migration/310605-21taskset20:20:283
339950,0migration/310306-21munin-node23:27:313
28415050,0irq/27-eth0-tx-18601-21munin-node20:52:330
28415050,0irq/27-eth0-tx-0-21swapper/020:20:010
28415050,0irq/27-eth0-tx-0-21swapper/019:20:520
28405050,0irq/26-eth0-rx-4670-21kthreadcore23:42:403
28405050,0irq/26-eth0-rx-30520-21kthreadcore23:17:433
28405050,0irq/26-eth0-rx-27398-21kthreadcore00:17:353
28405050,0irq/26-eth0-rx-26002-21gltestperf20:57:333
28405050,0irq/26-eth0-rx-20197-21kthreadcore23:52:383
28405050,0irq/26-eth0-rx-18346-21hostname00:12:323
28405050,0irq/26-eth0-rx-16258-21ssh22:30:573
28405050,0irq/26-eth0-rx-0-21swapper/323:34:073
28405050,0irq/26-eth0-rx-0-21swapper/323:07:403
28405050,0irq/26-eth0-rx-0-21swapper/322:47:193
28405050,0irq/26-eth0-rx-0-21swapper/322:37:363
28405050,0irq/26-eth0-rx-0-21swapper/322:12:293
28405050,0irq/26-eth0-rx-0-21swapper/322:07:473
28405050,0irq/26-eth0-rx-0-21swapper/321:52:423
28405050,0irq/26-eth0-rx-0-21swapper/321:32:463
28405050,0irq/26-eth0-rx-0-21swapper/321:15:313
28405050,0irq/26-eth0-rx-0-21swapper/321:07:393
28405050,0irq/26-eth0-rx-0-21swapper/321:02:323
268759952,0cyclictest9423-21cat23:27:192
268759952,0cyclictest9405-21cat00:07:192
268759952,0cyclictest93812sleep223:07:312
268759952,0cyclictest8941-21expr21:47:312
268759952,0cyclictest8675-21expr21:27:312
268759952,0cyclictest573-21sort21:42:312
268759952,0cyclictest553-21df_abs21:22:312
268759952,0cyclictest5207-21sed20:42:202
268759952,0cyclictest4513-21cpuspeed_turbos20:17:322
268759952,0cyclictest30863-21ls20:37:202
268759952,0cyclictest29664-21tune2fs19:47:342
268759952,0cyclictest28305-21cpuspeed_turbos19:22:322
268759952,0cyclictest27823-21expr18:57:332
268759952,0cyclictest25914-21tail22:37:312
268759952,0cyclictest25869-21aten_r1power_en23:57:322
268759952,0cyclictest25735-21fschecks_count21:17:392
268759952,0cyclictest23428-21aten_r1power_po20:07:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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