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2026-07-09 - 07:54
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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 highest latencies:
System rack4slot2.osadl.org (updated Thu Jul 09, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502110,0irq/45-4a10000022316-21kworker/0:019:08:230
225009910279,0cyclictest31732-21/usr/sbin/munin21:09:580
225009910179,0cyclictest6028-21sendmail-msp00:39:070
22500999981,0cyclictest438-21snmpd21:44:380
22500999773,0cyclictest26823-21df20:54:220
22500999773,0cyclictest25772-21sendmail_mailst19:15:200
22500999679,0cyclictest17936-21munin-run23:39:070
22500999678,0cyclictest25862-21timerandwakeup20:50:020
22500999677,0cyclictest3816-21sshd19:45:210
22500999676,0cyclictest30336-21df_inode21:04:260
22500999675,0cyclictest16681-21diskstats20:24:280
22500999672,0cyclictest25225-21/usr/sbin/munin23:59:300
22500999578,0cyclictest2048-21users22:50:070
22500999577,0cyclictest32464-21/usr/sbin/munin00:20:020
22500999570,0cyclictest23821-21/usr/sbin/munin22:19:550
22500999567,0cyclictest30205-21cstates00:14:180
22500999478,0cyclictest4704-21/usr/sbin/munin19:49:260
22500999478,0cyclictest2924-21df21:19:270
22500999477,0cyclictest11849-21meminfo23:19:520
22500999476,0cyclictest8879-21users21:35:050
22500999476,0cyclictest6573-21fw_forwarded_lo21:29:410
22500999476,0cyclictest23789-21memory23:54:480
22500999476,0cyclictest23066-21fw_forwarded_lo19:09:390
22500999476,0cyclictest21774-21df_inode22:14:260
22500999476,0cyclictest20841-21users20:35:050
22500999475,0cyclictest28994-21modprobe00:09:530
22500999475,0cyclictest13152-21df23:24:190
22500999475,0cyclictest10052-21/usr/sbin/munin21:39:460
22500999472,0cyclictest11131-21sendmail-msp23:19:100
22500999470,0cyclictest18735-21ntp_kernel_pll_20:29:530
22500999375,0cyclictest32400-21ntp_kernel_pll_22:44:510
22500999375,0cyclictest18608-21irqstats23:39:500
22500999375,0cyclictest15200-21irqstats20:19:490
22500999370,0cyclictest28781-21fw_conntrack20:59:400
22500999276,0cyclictest3247-21irqstats00:29:450
22500999275,0cyclictest21792-21/usr/sbin/munin23:49:320
22500999274,0cyclictest4724-21diskstats21:24:300
22500999274,0cyclictest30336-21df_inode22:39:290
22500999274,0cyclictest1322-21diskstats00:24:310
22500999271,0cyclictest7881-21hostname19:59:190
22500999271,0cyclictest27693-21vmstat22:30:090
22500999269,0cyclictest30418-21grep19:29:340
22500999175,0cyclictest7208-1kworker/u3:223:06:230
22500999175,0cyclictest13146-21df21:49:220
22500999174,0cyclictest6718-21memory19:54:490
22500999174,0cyclictest4956-21/usr/sbin/munin22:59:520
22500999174,0cyclictest25711-21/usr/sbin/munin22:24:560
22500999170,0cyclictest470-21runrttasks20:43:230
22500999168,0cyclictest29535-21seq19:26:060
22500999167,0cyclictest0-21swapper22:56:450
22500999075,0cyclictest26913-21df_abs00:04:240
22500999074,0cyclictest20240-21/usr/sbin/munin23:44:390
22500999074,0cyclictest18280-21df22:04:240
22500999074,0cyclictest13146-21df20:14:230
22500999074,0cyclictest1292-21diskstats21:14:290
22500999070,0cyclictest438-21snmpd20:05:290
22500999070,0cyclictest26911-21df_abs19:19:280
22500998971,0cyclictest20187-21fschecks_time22:09:340
22500998971,0cyclictest11881-21awk20:09:510
22500998874,0cyclictest15253-21memory23:29:490
22500998872,0cyclictest8116-21diskstats23:09:290
22500998872,0cyclictest1966-21grep19:40:120
22500998871,0cyclictest16974-21meminfo21:59:540
22500998871,0cyclictest16251-21sendmail-msp21:59:090
22500998870,0cyclictest23858-21nfs_client20:44:520
22500998669,0cyclictest28662-21fschecks_count22:34:320
22500998569,0cyclictest32040-21runrttasks19:34:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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