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2026-04-08 - 08:22
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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 Wed Apr 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501780,0irq/46-4a10000016536-21/usr/sbin/munin19:01:280
174879910879,0cyclictest13404-21/usr/sbin/munin22:01:140
174879910079,0cyclictest20233-21/usr/sbin/munin22:21:140
17487999780,0cyclictest25345-21diskstats21:01:100
17487999777,0cyclictest6523-21df_inode20:06:100
17487999777,0cyclictest14269-21runrttasks23:37:410
17487999775,0cyclictest31765-21awk00:30:490
17487999681,0cyclictest2827-21/usr/sbin/munin19:56:350
17487999676,0cyclictest26764-21/usr/sbin/munin00:16:310
17487999676,0cyclictest20359-21fw_forwarded_lo20:46:230
17487999578,0cyclictest5255-21/usr/sbin/munin20:01:380
17487999578,0cyclictest18658-21users19:06:470
17487999576,0cyclictest3427-21memory23:06:340
17487999576,0cyclictest12047-21modprobe21:56:360
17487999481,0cyclictest18294-21/usr/sbin/munin20:41:010
17487999479,0cyclictest25261-21df22:36:050
17487999478,0cyclictest13520-21fw_forwarded_lo20:26:200
17487999477,0cyclictest29058-21meminfo19:36:300
17487999476,0cyclictest17625-21sendmail-mta20:37:120
17487999475,0cyclictest7189-21/usr/sbin/munin21:41:440
17487999473,0cyclictest8484-21/usr/sbin/munin23:21:260
17487999473,0cyclictest1562-21chrt19:51:210
17487999467,0cyclictest31953-21aten_r4power_po22:56:000
17487999376,0cyclictest22564-21/usr/sbin/munin19:16:440
17487999375,0cyclictest9871-21df20:16:060
17487999375,0cyclictest32484-21meminfo00:31:310
17487999375,0cyclictest25648-21sshd00:11:300
17487999375,0cyclictest23856-21irqstats00:06:240
17487999275,0cyclictest8587-21nfs_client21:46:310
17487999271,0cyclictest20820-21chrt23:56:430
17487999174,0cyclictest1640-21irqstats21:26:240
17487999174,0cyclictest11672-21/usr/sbin/munin20:21:100
17487999173,0cyclictest29124-21/usr/sbin/munin22:46:360
17487999173,0cyclictest21920-21diskstats20:51:130
17487999172,0cyclictest3840-21grep21:31:450
17487999172,0cyclictest27031-21df_inode21:06:080
17487999172,0cyclictest10249-21meminfo21:51:290
17487999168,0cyclictest18418-21df22:16:040
17487999167,0cyclictest460-21snmpd19:23:530
17487999075,0cyclictest15141-21/usr/sbin/munin23:41:130
17487999074,0cyclictest32377-21/usr/sbin/munin19:46:230
17487999074,0cyclictest23626-21diskstats22:31:100
17487999071,0cyclictest7830-21latency_hist23:20:500
17487999071,0cyclictest21069-21chrt19:12:370
17487998973,0cyclictest8004-21/usr/sbin/munin20:11:000
17487998972,0cyclictest21744-21aten_r4power_vo00:01:020
17487998972,0cyclictest16929-21fw_forwarded_lo22:11:190
17487998972,0cyclictest15070-21df_inode22:06:100
17487998972,0cyclictest11670-21diskstats23:31:130
17487998970,0cyclictest4545-21/usr/sbin/munin21:36:390
17487998964,0cyclictest23034-21seq22:29:370
17487998872,0cyclictest18017-21runrttasks23:50:330
17487998869,0cyclictest18403-21df23:51:040
17487998773,0cyclictest28939-21fw_packets00:21:220
17487998771,0cyclictest29569-21runrttasks21:12:110
17487998771,0cyclictest14772-21/usr/sbin/munin20:31:350
17487998770,0cyclictest9663-21/usr/sbin/munin23:25:570
17487998768,0cyclictest1132-21aten_r4power_cu23:00:580
17487998767,0cyclictest30234-21/usr/sbin/munin21:15:590
17487998766,0cyclictest314022sleep019:43:070
17487998765,0cyclictest27565-21mailstats19:31:400
17487998670,0cyclictest875-21chrt21:24:560
17487998570,0cyclictest26706-21date22:40:520
17487998569,0cyclictest4536-21aten_r4power_cu23:10:580
17487998472,0cyclictest30461-21diskstats22:51:100
17487998469,0cyclictest25729-21modprobe19:26:370
17487998369,0cyclictest23929-21meminfo20:56:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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