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2025-07-14 - 11:23
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 50 highest latencies:
System rack5slot7.osadl.org (updated Mon Jul 14, 2025 00:44:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15717224960,11sleep013218-1kworker/u3:117:45:050
160029917313,118cyclictest4351-21/usr/sbin/munin21:22:540
160029917219,127cyclictest29228-21apt-get18:57:430
160029917218,127cyclictest9204-21apt-get21:37:500
160029916916,128cyclictest25183-21ntp_states18:33:200
160029916818,109cyclictest22068-21munin-run22:17:240
160029916812,133cyclictest2010-21grep19:23:300
160029916718,28cyclictest27404-21irqstats20:53:400
160029916616,127cyclictest7992-21irqstats21:33:290
160029916613,129cyclictest15716-21apt-get21:57:510
16002991658,133cyclictest24288-21ntp_kernel_pll_20:43:450
160029916519,123cyclictest11232-21memory20:03:390
160029916518,122cyclictest14327-21df21:53:060
160029916517,123cyclictest32238-21df_inode22:48:120
160029916516,127cyclictest20455-21apt-get20:32:500
160029916515,127cyclictest8909-21ssh19:57:070
160029916515,126cyclictest24159-21df_inode22:23:180
160029916514,29cyclictest30688-21df_inode22:43:140
160029916511,130cyclictest12863-21missed_timers20:08:420
160029916418,25cyclictest17339-21apt-get22:02:430
160029916418,23cyclictest30248-21apt-get21:02:440
160029916417,122cyclictest1350-21df_inode21:13:140
160029916414,127cyclictest1202-21aten_r5power_vo22:52:580
160029916414,126cyclictest9631-21memory19:58:440
160029916413,126cyclictest6254-21ntp_kernel_err23:08:390
160029916320,25cyclictest26373-21users22:29:100
160029916317,26cyclictest15564-21apt-get20:17:330
160029916315,25cyclictest2660-21apt-get21:17:460
160029916314,124cyclictest28738-21apt-get22:37:440
160029916313,128cyclictest12916-21memory21:48:340
160029916310,127cyclictest26171-21timerwakeupswit20:49:010
160029916238,104cyclictest16116-21aten_r5power_cu17:47:470
160029916217,123cyclictest32762-21users21:09:060
160029916215,29cyclictest22984-21timerandwakeup22:18:580
160029916215,125cyclictest24212-21memory18:28:160
160029916214,126cyclictest6826-21users21:29:050
160029916214,126cyclictest18145-21ssh20:24:100
160029916212,128cyclictest5808-21apt-get19:47:470
160029916212,123cyclictest20648-21tr18:08:190
160029916212,113cyclictest23285-21ssh20:40:430
160029916210,128cyclictest7549-21df_inode23:13:120
160029916121,116cyclictest14208-21df20:13:100
160029916120,24cyclictest29149-21memory20:58:530
160029916112,126cyclictest22911-21/usr/sbin/munin18:23:110
160029916110,128cyclictest19366-21wget18:02:470
160029916110,125cyclictest27178-21cut22:32:550
160029916014,123cyclictest2721-21apt-get22:57:450
160029916011,124cyclictest4789-21ntpq23:03:420
160029915915,21cyclictest21388-21fw_conntrack18:13:010
160029915914,122cyclictest10827-21ssh21:42:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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