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2026-04-04 - 08:53
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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 highest latencies:
System rack7slot8.osadl.org (updated Fri Apr 03, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4106214820,10sleep04104-21swap07:05:510
46899917231,120cyclictest1408-21nginx12:14:580
46899916950,102cyclictest14187-21https07:45:040
46899916924,104cyclictest1408-21nginx10:19:370
4689991668,106cyclictest21444-21df08:10:190
46899916243,99cyclictest22386-21chrt10:21:570
46899916049,94cyclictest10150irq/55-4a10000012:00:410
46899916037,83cyclictest3650irq/20-4900000011:15:230
4689991589,93cyclictest17374-21apt-get10:06:130
4689991588,96cyclictest22890-21users12:26:260
4689991588,111cyclictest16293-21ntp_states07:50:430
4689991587,110cyclictest6009-21/usr/sbin/munin07:15:110
46899915826,112cyclictest1305-21snmpd09:20:420
4689991577,99cyclictest17442-21memory07:55:340
46899915737,104cyclictest10250irq/56-4a10000008:35:130
4689991567,94cyclictest6436-21apt-get11:27:080
46899915637,107cyclictest1921-21http11:10:040
46899915626,111cyclictest1408-21nginx11:39:510
46899915622,92cyclictest4380-21sshd09:10:470
4689991555,93cyclictest18259-21apt-get08:02:090
46899915448,88cyclictest10150irq/55-4a10000011:40:230
4689991538,92cyclictest19326-21diskstats10:10:230
4689991538,86cyclictest26473-21apt-get10:42:120
46899915336,97cyclictest0-21swapper/009:46:480
46899915310,129cyclictest15437-21apt-get07:47:110
46899915211,119cyclictest13342-21df_inode11:50:140
4689991517,105cyclictest1305-21snmpd08:45:120
46899915151,90cyclictest318232sleep011:00:010
46899915133,106cyclictest801-21dbus-daemon08:50:460
46899915123,107cyclictest9638-21latency_hist07:30:080
4689991509,99cyclictest10854-21users07:31:400
4689991509,104cyclictest2931-21ntp_states09:05:410
4689991508,88cyclictest9399-21vmstat09:30:500
4689991508,121cyclictest4885-21wget07:10:150
4689991507,86cyclictest1909-21apt-get11:12:080
46899915024,106cyclictest19522-21wget12:15:190
4689991499,119cyclictest5419-21ntp_states09:15:400
4689991498,104cyclictest25724-21ntp_states10:35:380
4689991495,123cyclictest28315-21wget10:45:130
4689991487,102cyclictest22683-21df_inode08:15:180
46899914832,106cyclictest1408-21nginx08:59:270
4689991477,121cyclictest24060-21processes12:30:400
46899914729,105cyclictest12009-21sshd09:41:440
4689991468,99cyclictest15445-21chrt11:59:280
4689991468,118cyclictest20867-21diskstats12:20:170
4689991457,116cyclictest1608-21ntpd12:35:510
4689991457,104cyclictest17544-21sshd12:06:060
4689991456,120cyclictest11945-21wget11:45:120
4689991447,124cyclictest24309-21diskstats10:30:200
4689991447,116cyclictest8163-21sshd09:25:510
46899914445,88cyclictest23162-21runrttasks10:25:300
46899914420,108cyclictest11498-21grep07:35:150
46899914339,95cyclictest29888-21latency_hist08:45:020
46899914326,105cyclictest754-21systemd-journal11:23:500
4689991429,117cyclictest15201-21diskstats09:55:230
4689991428,83cyclictest10625-21users09:35:490
4689991426,115cyclictest1305-21snmpd10:50:170
46899914221,104cyclictest24135-21sshd08:20:360
4689991416,116cyclictest1305-21snmpd10:01:520
4689991409,90cyclictest8356-21df11:30:130
4689991407,117cyclictest8401-21latency_hist07:25:020
4689991407,114cyclictest13755-21/usr/sbin/munin09:50:260
46899914032,98cyclictest26827-21runrttasks08:30:440
46899914030,98cyclictest20016-21/usr/sbin/munin08:05:370
46899913946,84cyclictest25070-21aten_r7power_po08:25:130
46899913811,113cyclictest32348-21ntp_states11:00:380
4689991365,82cyclictest2340-21chrt09:04:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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