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2025-12-03 - 21:03
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Wed Dec 03, 2025 13:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2156723210,7sleep021566-21cpu07:05:130
22603991648,135cyclictest23836-21runrttasks07:12:070
22603991646,139cyclictest1424-21nginx10:34:370
226039916327,116cyclictest1424-21nginx11:56:090
22603991628,98cyclictest7923-21users10:25:550
22603991617,134cyclictest19190-21grep11:10:030
22603991598,104cyclictest19230-21apt-get09:07:130
22603991596,104cyclictest7125-21apt-get12:32:090
22603991588,106cyclictest9256-21ntp_states12:35:400
226039915828,110cyclictest22799-21runrttasks11:20:480
226039915731,106cyclictest10250irq/56-4a10000008:29:490
226039915719,119cyclictest13357-21fw_conntrack08:40:270
226039915657,82cyclictest15618-21aten_r7power_po10:55:190
22603991557,17cyclictest12255-21ntp_states08:35:420
22603991557,15cyclictest4254-21apt-get12:17:090
226039915538,106cyclictest29301-21chrt09:42:240
22603991549,92cyclictest5093-21irqstats10:15:360
22603991547,94cyclictest32744-21sendmail_mailst09:55:470
22603991547,126cyclictest24404-21seq09:23:140
226039915427,108cyclictest1356-21snmpd10:41:490
226039915339,100cyclictest31186-21diskstats09:50:250
226039915325,110cyclictest10250irq/56-4a10000007:34:020
22603991528,97cyclictest25071-21apt-get07:17:070
22603991528,124cyclictest1356-21snmpd10:21:240
22603991528,104cyclictest4374-21/usr/sbin/munin08:05:330
22603991527,123cyclictest7048-21/usr/sbin/munin08:15:170
226039915244,97cyclictest1336-21runrttasks10:45:130
226039915241,99cyclictest10377-21runrttasks10:35:210
226039915222,120cyclictest3138-21/usr/sbin/munin08:00:190
22603991518,120cyclictest22100-21apt09:15:010
22603991516,104cyclictest1336-21runrttasks09:45:250
226039915126,113cyclictest14551-21sshd10:50:540
226039915125,93cyclictest1356-21snmpd09:26:310
226039915118,115cyclictest1356-21snmpd12:05:340
22603991506,102cyclictest8375-21fw_conntrack08:20:250
22603991498,102cyclictest1356-21snmpd12:12:090
22603991498,101cyclictest20048-21memory11:11:020
22603991497,128cyclictest760-21systemd-journal07:25:220
22603991497,123cyclictest27280-21wget09:35:150
22603991488,96cyclictest26189-21diskstats09:30:230
22603991488,102cyclictest30771-21diskstats07:40:210
22603991487,15cyclictest2137-21fw_forwarded_lo07:55:360
22603991486,123cyclictest1356-21snmpd11:30:180
226039914831,101cyclictest10250irq/56-4a10000012:30:010
226039914741,96cyclictest26227-21runrttasks07:21:030
226039914724,104cyclictest1356-21snmpd11:47:040
22603991469,95cyclictest30430-21apt07:40:010
22603991468,124cyclictest1801-21node08:30:260
22603991468,105cyclictest1356-21snmpd11:37:030
22603991467,16cyclictest32394-21diskstats12:00:300
226039914623,112cyclictest5834-21sshd08:10:230
226039914623,108cyclictest1356-21snmpd11:01:530
22603991459,94cyclictest21147-21fw_forwarded_lo11:15:280
22603991457,117cyclictest15602-21/usr/sbin/munin08:50:290
226039914523,105cyclictest17315-21proc_pri08:55:510
22603991448,15cyclictest32120-21memory07:45:330
22603991446,126cyclictest760-21systemd-journal07:51:220
226039914435,99cyclictest23646-21runrttasks11:25:240
226039914433,100cyclictest5149-21ntpq12:20:470
226039914410,90cyclictest14578-21diskstats08:45:230
22603991438,114cyclictest18106-21/usr/sbin/munin09:00:300
22603991437,14cyclictest2699-21ntp_states10:05:410
22603991436,98cyclictest30842-21wc11:55:030
226039914332,99cyclictest2258-21latency_hist10:05:040
226039914322,103cyclictest815-21rs:main0
226039913935,88cyclictest10150irq/55-4a10000009:20:030
22603991378,110cyclictest27363-21df11:40:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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