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2026-09-18 - 14:41
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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 Sep 18, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
766223741,62sleep00-21swapper/019:08:250
10439918440,108cyclictest7018-21runrttasks23:40:320
10439917631,125cyclictest1408-21nginx00:27:450
1043991758,110cyclictest14258-21apt-get20:02:090
10439916740,110cyclictest10250irq/56-4a10000022:23:050
1043991659,135cyclictest1408-21nginx20:12:230
10439916347,96cyclictest10150irq/55-4a10000021:05:420
1043991628,115cyclictest15657-21runrttasks22:08:580
10439916010,131cyclictest13357-21/usr/sbin/munin00:05:300
10439915930,110cyclictest14658-21aten_r7power_en00:10:140
1043991588,91cyclictest19648-21apt-get20:18:150
10439915835,107cyclictest10250irq/56-4a10000022:58:080
1043991567,91cyclictest15784-21apt-get22:12:100
10439915611,105cyclictest9512-21memory23:50:340
1043991558,125cyclictest754-21systemd-journal23:20:000
1043991557,124cyclictest1305-21snmpd22:44:070
1043991557,110cyclictest16201-21df20:05:150
1043991548,89cyclictest11107-21fw_forwarded_lo23:55:480
1043991548,107cyclictest12935-21http22:00:060
1043991548,106cyclictest21160-21munin-run00:35:010
1043991548,104cyclictest11388-21apt-get19:52:090
1043991539,106cyclictest20546-21ntp_states20:20:430
1043991537,89cyclictest3546-21apt-get19:18:140
10439915335,106cyclictest10037-21apt-get21:51:430
10439915330,108cyclictest5875-21chrt19:25:460
1043991526,93cyclictest26153-21apt-get22:51:400
10439915230,111cyclictest4102-21munin-run23:30:020
1043991517,90cyclictest16321-21ntp_states00:16:140
10439915122,101cyclictest30347-21cat23:05:030
10439915038,83cyclictest10150irq/55-4a10000023:20:170
10439915035,103cyclictest1774-21ntpq21:15:340
10439915030,104cyclictest4019-21wget21:25:150
1043991497,121cyclictest21710-21which22:30:410
10439914944,95cyclictest11467-21latency_hist19:50:050
10439914937,101cyclictest801-21dbus-daemon20:45:010
10439914914,117cyclictest1408-21nginx23:47:400
1043991488,96cyclictest2278-21apt-get19:15:020
1043991488,120cyclictest13153-21/usr/sbin/munin22:00:190
10439914841,96cyclictest6292-21cron21:35:010
10439914838,97cyclictest31053-21sshd23:06:080
10439914832,105cyclictest24999-21munin-run20:40:020
10439914736,98cyclictest29201-21ntpq20:55:350
10439914726,102cyclictest21346-21wget00:35:200
1043991469,124cyclictest12303-21df00:00:200
1043991467,96cyclictest21499-21wget20:25:120
10439914643,87cyclictest8950irq/40-mmc100:20:190
10439914619,108cyclictest1305-21snmpd21:03:460
1043991457,97cyclictest2010-21node22:47:350
1043991455,121cyclictest23762-21latency_hist22:40:050
10439914543,91cyclictest18540-21runrttasks22:19:020
10439914526,102cyclictest1408-21nginx23:13:100
1043991447,95cyclictest10037-21apt-get21:50:020
1043991447,123cyclictest4366-21grep23:30:270
10439914439,94cyclictest22633-21/usr/sbin/munin20:30:460
1043991436,85cyclictest6719-21memory21:35:310
10439914343,90cyclictest27919-21runrttasks20:50:320
10439914339,86cyclictest10150irq/55-4a10000021:10:140
10439914310,90cyclictest26566-21df_inode20:45:200
10439914237,95cyclictest7765-21apt19:35:100
10439914231,98cyclictest2010-21node21:42:300
10439914227,104cyclictest3077-21ntp_states21:20:370
1043991417,113cyclictest1276-21runrttasks19:30:530
1043991407,101cyclictest4442-21ntp_states19:20:400
10439914032,96cyclictest13648-21seq19:55:460
10439913939,87cyclictest10250irq/56-4a10000023:35:520
10439913933,95cyclictest20333-21awk22:25:300
10439913625,99cyclictest9430-21ntpq19:40:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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