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2024-06-15 - 22:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

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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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackaslot5s.osadl.org (updated Sat Jun 15, 2024 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
54812770,0sleep010050irq/346-484840008:12:470
255972720,0chrt9950irq/345-484840009:11:170
81640,0rcu_preempt19-21ksoftirqd/107:40:001
9950630,0irq/345-4848400171rcuc/110:50:201
81620,0rcu_preempt3-21ksoftirqd/009:54:530
81610,0rcu_preempt19-21ksoftirqd/112:26:401
81610,0rcu_preempt19-21ksoftirqd/112:20:151
174022610,0sleep09950irq/345-484840007:10:040
8592600,0sleep09950irq/345-484840007:59:390
15122590,0sleep09950irq/345-484840010:15:000
142832590,0sleep09950irq/345-484840008:39:570
10862590,0sleep09950irq/345-484840011:54:480
81580,0rcu_preempt19-21ksoftirqd/111:45:121
9950570,0irq/345-484840010753-21apt-get09:39:481
81570,0rcu_preempt28708-1kworker/0:2H09:19:550
81560,0rcu_preempt19-21ksoftirqd/108:40:141
241852560,0sleep09950irq/345-484840010:00:050
10050560,0irq/346-484840019-21ksoftirqd/110:19:401
86162550,0sleep010050irq/346-484840008:21:090
10050550,0irq/346-484840019115-1kworker/0:0H09:52:350
318702540,0sleep09950irq/345-484840010:11:280
280462540,0sleep09950irq/345-484840007:42:270
10050540,0irq/346-48484005517-1kworker/0:2H09:32:090
10050540,0irq/346-484840028708-1kworker/0:2H09:16:300
10050540,0irq/346-484840016805-21cyclictest08:59:511
81530,0rcu_preempt24213-1kworker/0:3H11:40:140
81530,0rcu_preempt19-21ksoftirqd/108:25:031
9950520,0irq/345-4848400181ktimersoftd/110:45:101
81520,0rcu_preempt3-21ksoftirqd/010:54:480
81520,0rcu_preempt3-21ksoftirqd/009:39:380
81520,0rcu_preempt19-21ksoftirqd/112:34:361
15612520,0sleep09950irq/345-484840009:25:030
10050520,0irq/346-48484009191-1kworker/0:1H10:51:360
10050520,0irq/346-484840028377-1kworker/0:4H10:59:480
10050520,0irq/346-484840022516-1kworker/0:1H10:05:010
212302510,0sleep09950irq/345-484840012:23:590
10050510,0irq/346-484840020082-21ping07:19:510
10050510,0irq/346-4848400181ktimersoftd/109:59:511
10050510,0irq/346-484840012946-1kworker/0:2H12:26:180
9950500,0irq/345-484840081rcu_preempt10:39:381
124082500,0sleep09950irq/345-484840010:31:130
10050500,0irq/346-484840029404-1kworker/0:0H11:51:140
37802490,0sleep010050irq/346-484840008:07:000
10050490,0irq/346-484840028767-1kworker/0:0H10:21:470
9950480,0irq/345-484840024916-21ls11:40:221
9950480,0irq/345-48484000-21swapper/011:45:120
317212480,0sleep09950irq/345-484840012:38:360
301342480,0chrt9950irq/345-484840011:49:501
10050480,0irq/346-484840022226-1kworker/0:0H10:48:490
10050480,0irq/346-484840010718-1kworker/0:1H11:25:030
9950470,0irq/345-484840023221-1kworker/0:2H11:39:050
9950470,0irq/345-484840023221-1kworker/0:2H11:39:050
9950470,0irq/345-48484000-21swapper/009:04:460
81470,0rcu_preempt19-21ksoftirqd/110:35:271
10050470,0irq/346-48484009279-1kworker/0:1H09:38:460
10050470,0irq/346-484840025408-21munin-node0
10050470,0irq/346-484840011127-21memory11:20:121
10050470,0irq/346-484840010713-21df_inode11:19:590
10050460,0irq/346-484840025759-1kworker/0:4H12:05:280
9950450,0irq/345-48484000-21swapper/010:37:100
9950450,0irq/345-48484000-21swapper/007:19:380
81450,0rcu_preempt7635-21apt-get10:24:481
81450,0rcu_preempt19-21ksoftirqd/110:09:571
63682450,0sleep09950irq/345-484840011:13:070
13250450,0irq/301-48020003-21ksoftirqd/008:14:540
13250450,0irq/301-48020003-21ksoftirqd/008:14:540
10050450,0irq/346-48484004404-1kworker/0:2H11:59:490
10050450,0irq/346-484840028939-21munin-node0
10050450,0irq/346-484840028767-1kworker/0:0H10:24:480
10050450,0irq/346-484840022909-1kworker/0:2H07:25:280
9950440,0irq/345-48484009443-21ssh11:17:540
9950440,0irq/345-48484004420-21apt-get11:59:481
9950440,0irq/345-484840017659-21munin-node0
9950440,0irq/345-484840015335-21munin-node0
9950440,0irq/345-48484000-21swapper/007:30:320
81440,0rcu_preempt502-21ping08:23:401
81440,0rcu_preempt19-21ksoftirqd/107:10:171
38312440,0sleep19950irq/345-484840010:18:531
10050440,0irq/346-484840031229-1kworker/0:1H07:55:150
10050440,0irq/346-48484002587-1kworker/0:1H11:07:180
81430,0rcu_preempt19-21ksoftirqd/111:11:271
81430,0rcu_preempt19-21ksoftirqd/109:46:261
81430,0rcu_preempt19-21ksoftirqd/109:46:261
81430,0rcu_preempt19-21ksoftirqd/107:35:011
81430,0rcu_preempt19-21ksoftirqd/107:28:471
10050430,0irq/346-48484005441-1kworker/0:2H08:30:130
10050430,0irq/346-48484003830-21taskset08:07:321
10050430,0irq/346-484840020821-21munin-node0
10050430,0irq/346-484840017133-1kworker/0:0H08:49:490
10050430,0irq/346-484840014950-21swap09:45:130
10050430,0irq/346-484840014950-21swap09:45:130
10050430,0irq/346-484840014862-1kworker/0:4H07:05:150
10050430,0irq/346-484840012644-1kworker/0:1H08:35:070
10050430,0irq/346-484840010718-1kworker/0:1H11:29:540
9950420,0irq/345-48484000-21swapper/007:49:590
81420,0rcu_preempt19-21ksoftirqd/108:17:191
81420,0rcu_preempt19-21ksoftirqd/108:17:191
81420,0rcu_preempt19-21ksoftirqd/108:10:171
81420,0rcu_preempt19-21ksoftirqd/107:44:441
10050420,0irq/346-484840017133-1kworker/0:0H08:55:090
10050420,0irq/346-484840012946-1kworker/0:2H12:11:230
81410,0rcu_preempt19-21ksoftirqd/110:33:061
81410,0rcu_preempt19-21ksoftirqd/107:30:351
81410,0rcu_preempt19-21ksoftirqd/107:21:211
81410,0rcu_preempt12951-21meminfo08:35:061
10050410,0irq/346-484840026318-1kworker/0:1H07:39:370
10050410,0irq/346-484840015230-1kworker/0:5H08:44:530
81400,0rcu_preempt19706-21ps08:55:111
81400,0rcu_preempt19-21ksoftirqd/112:19:131
81400,0rcu_preempt19-21ksoftirqd/111:19:241
81400,0rcu_preempt19-21ksoftirqd/111:06:441
81400,0rcu_preempt19-21ksoftirqd/107:59:531
155942400,0sleep19950irq/345-484840011:26:241
10050400,0irq/346-48484008669-1kworker/0:3H08:25:220
10050400,0irq/346-48484000-21swapper/109:20:071
81390,0rcu_preempt784-21rngd10:59:531
81390,0rcu_preempt19-21ksoftirqd/109:36:041
81390,0rcu_preempt19-21ksoftirqd/109:16:581
81390,0rcu_preempt19-21ksoftirqd/108:30:221
81390,0rcu_preempt10448-21kworker/1:012:11:201
26762390,0sleep19950irq/345-484840009:26:291
227572390,0sleep19950irq/345-484840011:37:331
227572390,0sleep19950irq/345-484840011:37:331
81380,0rcu_preempt19-21ksoftirqd/112:36:151
81380,0rcu_preempt19-21ksoftirqd/111:57:071
81380,0rcu_preempt19-21ksoftirqd/110:55:221
81380,0rcu_preempt19-21ksoftirqd/110:04:551
81380,0rcu_preempt19-21ksoftirqd/109:54:401
81380,0rcu_preempt19-21ksoftirqd/109:54:031
81380,0rcu_preempt19-21ksoftirqd/109:09:581
81380,0rcu_preempt19-21ksoftirqd/107:05:121
81370,0rcu_preempt19-21ksoftirqd/112:05:161
81370,0rcu_preempt19-21ksoftirqd/111:31:491
81370,0rcu_preempt19-21ksoftirqd/109:34:061
81370,0rcu_preempt19-21ksoftirqd/109:09:041
81360,0rcu_preempt19-21ksoftirqd/108:47:221
81360,0rcu_preempt19-21ksoftirqd/107:18:231
1699360,0migration/132134-21if_eth207:55:021
81350,0rcu_preempt19-21ksoftirqd/107:52:121
81340,0rcu_preempt19-21ksoftirqd/108:49:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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