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2026-04-27 - 20:46
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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 Apr 27, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15566220629,51sleep00-21swapper/019:05:540
161149917123,109cyclictest1305-21snmpd23:51:320
16114991695,108cyclictest5056-21diskstats22:40:220
16114991658,135cyclictest27595-21http00:10:040
161149916524,120cyclictest1408-21nginx21:07:120
16114991637,93cyclictest27584-21apt-get00:12:110
16114991637,115cyclictest754-21systemd-journal00:27:120
16114991628,131cyclictest754-21systemd-journal22:06:450
161149916230,114cyclictest12771-21seq23:10:140
161149916140,104cyclictest10250irq/56-4a10000021:32:170
16114991606,100cyclictest27803-21ntp_states19:55:400
16114991596,100cyclictest21062-21/usr/sbin/munin21:35:110
161149915928,97cyclictest1305-21snmpd00:21:410
16114991587,111cyclictest9248-21diskstats22:55:580
16114991578,111cyclictest6124-21ntp_states20:35:430
16114991568,93cyclictest25035-21munin-run00:00:030
16114991568,106cyclictest1089-21apt-get20:17:060
16114991557,127cyclictest32285-21/usr/sbin/munin22:20:240
16114991549,109cyclictest15508-21irqstats23:20:310
16114991547,91cyclictest14705-21apt-get23:17:110
16114991547,110cyclictest14960-21df21:10:230
16114991546,105cyclictest16651-21runrttasks23:25:220
161149915433,108cyclictest20064-21systemctl23:40:020
161149915428,110cyclictest1305-21snmpd21:56:060
16114991538,122cyclictest8002-21seq20:44:090
16114991537,88cyclictest29785-21apt-get20:07:110
16114991528,101cyclictest31926-21ntp_states20:10:430
16114991525,108cyclictest9496-21wget20:50:140
161149915227,113cyclictest11459-21/usr/sbin/munin23:05:530
161149915222,110cyclictest16188-21wget21:15:160
16114991519,100cyclictest23877-21df19:40:170
16114991516,104cyclictest1478-21apt-get20:22:110
161149915146,86cyclictest10150irq/55-4a10000022:35:400
161149915131,104cyclictest10250irq/56-4a10000000:15:130
16114991508,107cyclictest7544-21diskstats22:50:240
16114991506,121cyclictest3249-21/usr/sbin/munin20:25:480
161149915037,101cyclictest27704-21ntpq22:00:440
16114991497,126cyclictest221582sleep019:33:430
16114991497,126cyclictest17465-21wget21:20:180
16114991497,109cyclictest25169-21/usr/sbin/munin21:50:370
161149914920,110cyclictest1305-21snmpd00:31:440
16114991488,101cyclictest802-21in:imuxsock19:50:350
16114991487,105cyclictest17902-21diskstats23:30:230
16114991487,102cyclictest1408-21nginx21:02:120
16114991486,104cyclictest29847-21apt-config20:05:060
161149914833,102cyclictest7298-21latency_hist22:50:040
16114991478,101cyclictest20141-21df19:25:170
161149914752,85cyclictest8763-21mailstats20:45:460
16114991469,105cyclictest2833-21sendmail_mailqu00:35:450
16114991468,102cyclictest16807-21users19:10:490
161149914640,94cyclictest20621-21pluginstate23:40:420
161149914627,108cyclictest30112-21runrttasks22:10:330
16114991457,104cyclictest24642-21seq21:49:410
16114991456,100cyclictest4853-21sshd20:30:360
16114991455,125cyclictest10761-21wget20:55:130
16114991448,94cyclictest22665-21fw_forwarded_lo19:35:270
16114991447,98cyclictest31016-21/usr/sbin/munin22:15:140
161149914448,81cyclictest101ktimersoftd/019:20:180
16114991428,102cyclictest1290-21df_inode22:25:200
16114991426,95cyclictest2545-21df22:30:190
16114991426,117cyclictest21439-21aten_r7power_cu23:45:120
161149914141,89cyclictest22386-21runrttasks21:40:130
16114991406,120cyclictest25303-21ntpq19:45:360
161149914024,104cyclictest2010-21node23:02:000
16114991397,119cyclictest17637-21/usr/sbin/munin19:15:200
16114991389,115cyclictest18824-21fw_forwarded_lo21:25:280
16114991376,92cyclictest26042-21sshd00:02:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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