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2025-12-04 - 09:25
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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 Thu Dec 04, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
393561799511,45cyclictest0-21swapper/021:28:100
393561799476,27cyclictest4004017-21apt-get21:46:120
3935618994537,5cyclictest0-21swapper/123:38:111
3935617994518,6cyclictest0-21swapper/000:13:150
3935617994120,5cyclictest4085221-21ssh23:09:580
3935618993820,14cyclictest0-21swapper/120:33:031
393561799382,12cyclictest3984937-21cron21:26:080
393561999376,14cyclictest4027193-21ssh22:09:052
3935617993627,8cyclictest3975517-21diskmemload22:16:010
3935619993512,15cyclictest4155719-21sendmail-msp00:33:132
393561799352,27cyclictest4028988-1kworker/0:2H+mmc_complete22:28:110
393561899341,7cyclictest4088249-21ntpq23:13:121
393561899341,7cyclictest4084755-21ssh23:09:141
393561799343,30cyclictest0-21swapper/000:28:120
3935617993421,2cyclictest0-21swapper/023:49:280
393561899335,23cyclictest4016218-21ntpq21:58:101
393561899332,8cyclictest4138033-21sendmail-msp00:12:351
3935618993318,11cyclictest0-21swapper/122:08:141
393561799331,25cyclictest3994917-21ssh21:36:310
393561899311,24cyclictest3984979-21sendmail-msp21:31:091
393561799318,6cyclictest11050irq/107-eth%d22:51:000
3935617993114,2cyclictest4040709-21ntpq22:23:100
393561899303,6cyclictest4040716-21ssh22:23:101
3935618993015,9cyclictest11050irq/107-eth%d22:16:011
393561899300,9cyclictest3955972-21apt-get20:16:111
3935617993024,4cyclictest0-21swapper/023:30:180
393561799302,11cyclictest4028988-1kworker/0:2H+kblockd00:06:090
393561799301,21cyclictest0-21swapper/023:13:090
393561999294,15cyclictest4126233-21/usr/sbin/munin23:53:102
3935618992910,16cyclictest3960091-21awk20:28:081
393561799292,26cyclictest0-21swapper/020:56:080
393561799291,19cyclictest967-21snmpd22:08:150
393561999284,16cyclictest4100286-21sendmail-msp23:26:102
393561899283,21cyclictest3945538-21sendmail-msp19:48:421
393561799289,10cyclictest11050irq/107-eth%d22:55:310
3935617992823,3cyclictest0-21swapper/023:55:320
3935617992811,15cyclictest0-21swapper/000:33:130
3935617992810,12cyclictest11050irq/107-eth%d23:18:420
393561999276,14cyclictest619-21mta-sts-daemon00:10:342
393561899273,7cyclictest4035598-21ntpq22:18:121
393561899272,8cyclictest4124614-21sh23:51:501
393561899272,3cyclictest3944465-21cut19:43:041
393561899271,5cyclictest4121183-21gltestperf23:48:061
3935618992710,15cyclictest0-21swapper/119:53:051
393561799273,16cyclictest633-21gpm21:52:130
393561799272,17cyclictest0-21swapper/019:43:140
393561899263,14cyclictest1006-21mta-sts-daemon20:48:101
393561899262,8cyclictest259-21jbd2/mmcblk0p2-823:35:191
393561899261,5cyclictest4004146-21wc21:46:091
393561899261,10cyclictest4095465-21cron23:21:091
393561799262,5cyclictest11050irq/107-eth%d23:58:110
3935617992621,4cyclictest4051754-21ssh22:34:360
3935617992616,2cyclictest4074369-21/usr/sbin/munin22:58:140
393561799260,6cyclictest4097269-21cut23:23:070
393561999255,15cyclictest111788-21systemd-journal23:10:482
393561999253,16cyclictest4116910-21ntpq23:43:132
393561999253,16cyclictest4116910-21ntpq23:43:132
393561899254,4cyclictest4133696-21ssh00:01:251
393561899251,5cyclictest4069521-21ssh22:53:111
393561899251,5cyclictest4049756-21grep22:33:061
3935618992511,4cyclictest11050irq/107-eth%d00:06:091
393561799251,4cyclictest3946573-21ntpq19:48:100
393561799251,19cyclictest0-21swapper/021:56:240
393561799251,13cyclictest4166309-21ntpq00:38:130
393561999244,13cyclictest111788-21systemd-journal21:46:112
393561899249,14cyclictest3975458-21unixbench_singl21:13:171
393561899245,18cyclictest0-21swapper/123:43:111
393561899245,18cyclictest0-21swapper/123:43:111
393561899243,5cyclictest4054129-21/usr/sbin/munin22:38:071
393561899243,17cyclictest4004056-21sendmail-msp21:52:281
393561899243,17cyclictest0-21swapper/119:38:111
393561899242,6cyclictest4131030-21/usr/sbin/munin23:58:111
393561899242,5cyclictest3986776-21fschecks_time21:28:061
393561899242,5cyclictest3939492-21cut19:28:041
393561899242,5cyclictest3935576-21munin-run19:16:081
3935618992414,6cyclictest259-21jbd2/mmcblk0p2-821:46:141
393561899240,6cyclictest4169303-21grep00:43:111
393561799241,3cyclictest3977843-21ntp_states21:18:110
393561799241,2cyclictest4168948-21head00:43:070
393561999239,2cyclictest0-21swapper/221:58:422
393561999236,13cyclictest111788-21systemd-journal20:48:112
3935619992321,2cyclictest3959073-21sendmail-msp20:30:342
393561899236,16cyclictest3955568-21latency_hist20:16:081
393561899233,5cyclictest0-21swapper/122:03:141
393561899233,3cyclictest4044973-21cut22:28:071
393561899233,3cyclictest259-21jbd2/mmcblk0p2-819:33:061
393561899232,5cyclictest4062355-21sendmail-msp22:48:311
393561899232,19cyclictest4102582-21ssh23:28:111
393561899231,6cyclictest4073666-21grep22:58:061
393561899231,4cyclictest4078193-21cut23:03:061
393561899231,4cyclictest3977251-21fschecks_time21:18:071
393561899231,4cyclictest3972820-21tune2fs21:08:071
393561899230,5cyclictest259-21jbd2/mmcblk0p2-819:26:091
393561799230,21cyclictest3960090-21ntpq20:28:080
393561999223,4cyclictest0-21swapper/200:23:442
393561999223,15cyclictest4121564-21ntpq23:48:102
3935619992212,8cyclictest4011307-21ssh21:53:102
393561899229,11cyclictest0-21swapper/120:38:091
393561899226,15cyclictest3996276-21cut21:38:051
393561899224,3cyclictest0-21swapper/121:23:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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