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2025-12-10 - 14:59
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack2slot7.osadl.org (updated Wed Dec 10, 2025 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308127099551,31cyclictest0-21swapper/012:31:210
3081272995448,3cyclictest3113758-21latency_hist08:51:141
3081272995448,3cyclictest3113758-21latency_hist08:51:141
308127099504,11cyclictest3081268-21cyclictest07:16:140
308127099492,46cyclictest3203217-21/usr/sbin/munin11:08:150
308127099482,6cyclictest3166891-21latency_hist10:16:150
3081270994433,10cyclictest3217129-21sendmail-msp11:28:390
3081270994325,3cyclictest0-21swapper/009:28:020
3081270994218,5cyclictest0-21swapper/011:50:260
3081270994128,9cyclictest3084574-21sendmail-msp07:36:000
3081272993915,16cyclictest3081268-21cyclictest11:49:541
308127099361,34cyclictest0-21swapper/008:53:230
308127099360,34cyclictest0-21swapper/010:55:530
308127399352,18cyclictest3131824-1kworker/2:0H+kblockd09:46:182
3081270993525,1cyclictest0-21swapper/010:08:200
3081273993429,3cyclictest1007-21mta-sts-daemon08:33:262
308127399342,7cyclictest3154330-21ntpq09:58:152
308127399342,7cyclictest3154330-21ntpq09:58:152
308127399342,24cyclictest3105043-21sendmail-msp08:27:152
308127099344,1cyclictest3144764-21ssh09:46:180
3081270993420,3cyclictest0-21swapper/009:13:160
3081270993410,8cyclictest3246794-21ntpq12:03:150
3081270993323,1cyclictest0-21swapper/009:36:150
308127099331,3cyclictest3141461-21/usr/sbin/munin09:43:150
3081273993225,3cyclictest0-21swapper/212:06:382
3081273993219,9cyclictest111788-21systemd-journal10:46:422
3081273993219,9cyclictest111788-21systemd-journal10:46:422
3081270993215,1cyclictest0-21swapper/007:43:150
3081270993215,1cyclictest0-21swapper/007:43:150
308127099311,28cyclictest259-21jbd2/mmcblk0p2-810:47:140
308127099311,28cyclictest259-21jbd2/mmcblk0p2-810:47:140
112699310,3rtkit-daemon1125-21rtkit-daemon12:30:202
308127399308,19cyclictest2243333-21munin-node09:54:472
308127299301,7cyclictest3257877-21ntpq12:18:151
308127299301,10cyclictest28-21ksoftirqd/110:56:331
308127099305,12cyclictest0-21swapper/008:26:210
3081270993014,2cyclictest0-21swapper/012:18:470
308127399293,24cyclictest3127466-21ntpq09:23:112
308127399291,6cyclictest3194483-21ntpq10:53:152
308127299296,9cyclictest3124189-21ssh09:18:141
308127099295,16cyclictest3122188-21diskmemload12:28:080
308127399285,22cyclictest0-21swapper/211:14:132
308127299288,19cyclictest3084574-21sendmail-msp07:26:191
308127299284,18cyclictest111788-21systemd-journal11:29:411
308127399275,18cyclictest0-21swapper/208:51:142
308127399275,18cyclictest0-21swapper/208:51:142
308127399274,20cyclictest0-21swapper/211:26:162
308127399274,19cyclictest259-21jbd2/mmcblk0p2-807:16:152
308127399272,5cyclictest3201204-21ssh11:03:452
308127399271,6cyclictest3246210-21grep12:03:102
308127399271,5cyclictest3227086-21ssh11:38:132
308127399270,6cyclictest3089248-21ntpq07:38:142
3081272992715,10cyclictest111788-21systemd-journal11:55:521
308127099277,10cyclictest3197415-21ssh10:58:150
308127099275,20cyclictest3084538-21apt-get07:26:180
308127399264,20cyclictest3234110-21/usr/sbin/munin11:48:082
308127399263,5cyclictest11050irq/107-eth%d10:03:102
308127399263,3cyclictest3280404-21sendmail12:46:142
308127399262,6cyclictest3159636-21sendmail-msp10:06:192
308127399262,6cyclictest0-21swapper/209:13:162
308127399262,5cyclictest3118916-21sendmail-msp09:06:172
308127399262,3cyclictest3204103-21/usr/sbin/munin11:08:152
308127399261,6cyclictest3222553-21cut11:33:092
308127399261,6cyclictest3098094-21sendmail-msp08:08:192
308127399261,6cyclictest3098094-21sendmail-msp08:08:192
308127399261,2cyclictest111788-21systemd-journal12:13:102
308127399260,10cyclictest3259924-21grep12:21:142
308127299266,16cyclictest619-21mta-sts-daemon09:41:181
3081272992614,7cyclictest261rcuc/112:32:251
308127299260,3cyclictest3211396-21ntpq11:18:141
308127099264,16cyclictest3112258-21/usr/sbin/munin08:48:090
308127099264,16cyclictest3112258-21/usr/sbin/munin08:48:090
3081270992623,1cyclictest3227005-21ntpq11:38:120
308127099260,25cyclictest0-21swapper/011:35:050
308127399255,3cyclictest0-21swapper/207:28:482
308127399254,18cyclictest0-21swapper/210:13:502
308127399253,2cyclictest0-21swapper/207:53:262
308127399252,8cyclictest3081442-21grep07:16:142
308127399251,5cyclictest3111672-21find08:43:212
308127299255,16cyclictest605-21avahi-daemon09:07:211
3081272992513,8cyclictest3254321-21ntpq12:13:161
3081272992513,6cyclictest3248504-21sendmail-msp12:06:241
308127299251,13cyclictest0-21swapper/111:03:131
308127099253,13cyclictest11050irq/107-eth%d12:38:130
308127099251,24cyclictest0-21swapper/009:51:190
308127099251,20cyclictest0-21swapper/010:33:100
308127399245,4cyclictest0-21swapper/209:38:262
308127399244,3cyclictest3230097-21aten_r2power_cu11:43:052
308127399243,7cyclictest764-21rs:main2
308127399243,3cyclictest3095296-21grep07:58:092
308127399242,4cyclictest3168187-21fschecks_time10:18:112
308127399242,21cyclictest0-21swapper/212:34:412
308127399242,17cyclictest3087609-21ld07:33:162
308127399241,6cyclictest764-21rs:main2
308127399241,5cyclictest3273975-21sed12:38:142
308127299248,14cyclictest3265196-21tune2fs12:28:081
308127299245,14cyclictest3278854-21/usr/sbin/munin12:43:201
3081272992415,7cyclictest3144168-21apt-get09:46:181
3081272992414,8cyclictest3087607-21collect207:33:161
3081272992412,8cyclictest3273852-21/usr/sbin/munin12:38:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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