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2025-11-24 - 19:50
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Mon Nov 24, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12795220826,50sleep00-21swapper/007:07:310
131529910563,25cyclictest101ktimersoftd/010:22:120
131529910560,28cyclictest101ktimersoftd/010:12:130
131529910365,24cyclictest101ktimersoftd/009:20:380
131529910179,14cyclictest0-21swapper/007:10:040
131529910173,11cyclictest101ktimersoftd/009:05:350
131529910155,12cyclictest101ktimersoftd/007:17:110
13152999826,20cyclictest2430-21ntp_states08:35:410
13152999751,30cyclictest101ktimersoftd/012:17:060
13152999741,18cyclictest11720-21runrttasks11:15:300
13152999735,45cyclictest101ktimersoftd/012:07:120
13152999467,11cyclictest101ktimersoftd/009:10:360
13152999466,12cyclictest101ktimersoftd/009:47:110
13152999466,11cyclictest101ktimersoftd/008:45:250
13152999447,30cyclictest3650irq/20-4900000009:15:430
256322930,9sleep025631-21latency_hist08:00:030
1315299935,34cyclictest10412-21df11:10:200
13152999335,42cyclictest101ktimersoftd/012:00:330
13152999253,24cyclictest101ktimersoftd/012:37:130
13152999145,29cyclictest101ktimersoftd/008:50:280
13152999064,10cyclictest101ktimersoftd/008:55:480
13152998949,23cyclictest0-21swapper/008:25:230
13152998829,42cyclictest10250irq/56-4a10000010:36:140
13152998820,27cyclictest1424-21nginx11:01:170
13152998813,21cyclictest15595-21irqstats09:25:330
1315299877,30cyclictest1674-21ntpd08:40:430
13152998751,23cyclictest101ktimersoftd/008:20:180
13152998742,32cyclictest0-21swapper/011:25:380
233382860,7sleep023339-21df09:55:180
13152998644,31cyclictest32072-21sshd10:26:050
13152998639,30cyclictest10250irq/56-4a10000007:20:410
13152998635,34cyclictest10250irq/56-4a10000011:21:210
13152998624,29cyclictest792-21haveged08:30:060
13152998620,48cyclictest26838-21apt-config10:10:060
13152998610,39cyclictest20711-21sendmail_mailqu11:50:430
1315299856,45cyclictest17726-21cat11:40:130
13152998564,12cyclictest101ktimersoftd/008:15:270
13152998556,11cyclictest101ktimersoftd/011:55:170
13152998528,40cyclictest0-21swapper/012:10:230
13152998523,18cyclictest7602-21latency_hist11:00:040
13152998512,20cyclictest760-21systemd-journal07:25:200
291652846,12sleep0760-21systemd-journal10:16:030
13152998432,16cyclictest10250irq/56-4a10000009:36:000
13152998359,11cyclictest101ktimersoftd/011:05:410
13152998334,33cyclictest101ktimersoftd/012:20:340
13152998322,28cyclictest792-21haveged10:50:030
13152998319,45cyclictest1356-21snmpd08:10:070
13152998249,16cyclictest10150irq/55-4a10000011:45:360
13152998240,31cyclictest10250irq/56-4a10000008:00:040
13152998233,11cyclictest101ktimersoftd/009:45:040
13152998214,27cyclictest1424-21nginx09:51:030
13152998210,37cyclictest1356-21snmpd07:50:000
1315299819,17cyclictest403-21/usr/sbin/munin10:30:210
1315299817,38cyclictest760-21systemd-journal09:32:210
13152998149,21cyclictest31826-21latency_hist12:35:080
13152998130,33cyclictest16522-21wget11:35:150
13152998054,10cyclictest101ktimersoftd/008:05:060
13152998051,14cyclictest10150irq/55-4a10000007:30:290
1315299799,33cyclictest1356-21snmpd07:55:040
13152997957,11cyclictest101ktimersoftd/011:30:510
13152997934,35cyclictest9431-21runrttasks09:02:010
13152997929,11cyclictest101ktimersoftd/010:40:210
13152997826,16cyclictest21307-21mailstats07:40:510
13152997750,11cyclictest101ktimersoftd/012:25:210
13152997746,21cyclictest5583-21/usr/sbin/munin10:50:360
13152997732,26cyclictest20076-21/usr/sbin/munin07:35:470
13152997712,34cyclictest1356-21snmpd10:00:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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