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2026-03-13 - 16:27
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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 Mar 13, 2026 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155292829147,348sleep013924-21kworker/0:107:06:180
16031991638,115cyclictest1305-21snmpd08:00:260
160319916340,107cyclictest10250irq/56-4a10000007:50:130
16031991628,114cyclictest15793-21ntp_states11:15:400
160319916237,107cyclictest10250irq/56-4a10000007:24:120
16031991617,134cyclictest1285-21lldpd11:57:050
16031991607,96cyclictest1305-21snmpd10:10:210
16031991607,130cyclictest1305-21snmpd08:15:300
16031991606,96cyclictest5919-21apt-get08:37:090
160319916036,106cyclictest10250irq/56-4a10000010:29:460
16031991597,97cyclictest27761-21apt-get12:07:110
16031991597,106cyclictest23608-21diskstats09:40:200
160319915924,113cyclictest1305-21snmpd08:26:210
16031991587,90cyclictest17525-21apt-get09:22:100
160319915847,93cyclictest10150irq/55-4a10000010:45:450
16031991577,104cyclictest9550-21vmstat08:45:530
16031991576,100cyclictest6892-21df10:40:160
160319915721,94cyclictest27724-21sshd07:55:120
16031991569,106cyclictest1-21systemd09:15:450
160319915639,106cyclictest5932-21apt-get08:35:040
16031991558,87cyclictest24725-21apt-get07:47:100
16031991548,107cyclictest1586-21munin-run10:20:000
16031991548,103cyclictest28638-21systemctl10:00:010
16031991546,90cyclictest25766-21apt-get09:52:090
160319915435,100cyclictest22572-21fw_conntrack07:35:230
16031991538,108cyclictest11582-21df08:55:170
16031991538,107cyclictest30407-21sshd10:05:410
16031991537,89cyclictest16414-21irqstats07:10:300
16031991537,104cyclictest24375-21fw_forwarded_lo11:50:250
160319915310,107cyclictest20151-21chrt09:26:200
16031991528,89cyclictest21453-21/usr/sbin/munin07:30:340
16031991528,100cyclictest30410-21diskstats08:05:210
16031991527,105cyclictest23505-21runrttasks11:45:480
16031991526,99cyclictest17077-21ntp_states11:20:400
160319915239,96cyclictest3650irq/20-4900000010:30:220
160319915228,107cyclictest10250irq/56-4a10000010:00:130
160319915224,109cyclictest12738-21wget09:00:100
16031991519,85cyclictest13131-21diskstats11:05:220
16031991517,122cyclictest30437-21seq12:13:280
160319915126,105cyclictest21687-21wget11:40:120
16031991508,107cyclictest6580-21munin-run10:40:020
16031991507,123cyclictest1305-21snmpd12:26:470
16031991506,97cyclictest2307-21/usr/sbin/munin12:30:320
16031991506,89cyclictest1657-21grep08:20:150
16031991506,126cyclictest14392-21sshd11:10:230
16031991498,120cyclictest2874-21chrt10:25:030
16031991488,120cyclictest26866-21fw_forwarded_lo12:00:230
160319914833,102cyclictest25042-21ntpq09:45:400
16031991468,99cyclictest20796-21ntp_states11:35:420
16031991467,106cyclictest11741-21wget11:00:120
16031991466,121cyclictest22459-21memory09:35:320
16031991466,118cyclictest14964-21seq09:09:340
16031991459,118cyclictest8102-21open_inodes08:40:410
16031991458,95cyclictest21506-21awk09:30:480
16031991458,103cyclictest1305-21snmpd12:36:480
160319914518,96cyclictest1305-21snmpd07:40:150
16031991438,99cyclictest19764-21users11:30:480
16031991438,120cyclictest10363-21diskstats08:50:210
16031991436,97cyclictest1276-21runrttasks08:10:230
160319914338,95cyclictest99352chrt10:51:520
160319914322,104cyclictest10250irq/56-4a10000009:10:110
16031991427,122cyclictest18122-21apt-get07:17:110
16031991426,99cyclictest17923-21/usr/sbin/munin11:25:370
160319914237,94cyclictest32649-21runrttasks12:20:560
160319914119,103cyclictest10250irq/56-4a10000012:15:050
160319914023,99cyclictest11017-21seq10:55:470
16031991375,115cyclictest20179-21cut07:25:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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