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2025-11-05 - 09:48
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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 Wed Nov 05, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30504221126,52sleep030515-21/usr/sbin/munin19:05:280
314049917041,110cyclictest10250irq/56-4a10000000:37:360
31404991688,139cyclictest1356-21snmpd23:01:360
314049916519,127cyclictest760-21systemd-journal21:08:420
31404991629,116cyclictest10695-21ntp_states19:55:430
31404991607,132cyclictest5746-21/usr/sbin/munin23:50:550
31404991597,131cyclictest14618-21apt-get20:17:140
31404991576,129cyclictest2965-21cpu19:25:170
314049915740,104cyclictest23364-21/usr/sbin/munin22:55:360
31404991566,130cyclictest25319-21/usr/sbin/munin20:55:130
314049915628,108cyclictest17746-21wget20:25:150
31404991558,17cyclictest22193-21ntp_states22:50:470
31404991557,129cyclictest1356-21snmpd22:34:000
314049915527,117cyclictest12204-21ntp_states22:10:430
314049915517,118cyclictest4011-21sshd21:38:300
314049915449,94cyclictest27001-21runrttasks23:06:360
314049915427,108cyclictest1424-21nginx19:40:510
314049915425,109cyclictest1356-21snmpd23:43:360
314049915422,113cyclictest1356-21snmpd20:06:380
31404991529,22cyclictest31925-21users23:25:520
31404991528,17cyclictest10743-21df22:05:170
31404991527,126cyclictest31632-21munin-run21:20:030
314049915223,118cyclictest8804-21chrt00:05:030
314049915218,119cyclictest14630-21http20:15:030
314049915210,20cyclictest14523-21diskstats22:20:220
31404991508,17cyclictest21707-21memory20:40:440
314049915039,93cyclictest10150irq/55-4a10000023:30:250
314049915037,102cyclictest760-21systemd-journal19:37:410
31404991499,121cyclictest15763-21df_inode22:25:220
31404991498,18cyclictest744-21diskstats21:25:220
31404991497,16cyclictest1336-21runrttasks20:23:440
314049914937,100cyclictest13417-21ntpq22:15:370
314049914936,93cyclictest10150irq/55-4a10000021:56:190
314049914928,108cyclictest9713-21seq22:00:400
31404991487,15cyclictest27350-21users21:00:470
314049914839,96cyclictest31743-21fw_conntrack19:10:390
314049914835,100cyclictest7909-21seq19:45:150
314049914811,17cyclictest7938-21latency_hist21:55:040
31404991477,19cyclictest1356-21snmpd21:48:030
31404991477,15cyclictest15562-21/usr/sbin/munin00:30:440
31404991476,124cyclictest13392-21runrttasks00:21:420
314049914727,102cyclictest1356-21snmpd00:27:360
314049914717,95cyclictest10250irq/56-4a10000020:53:380
31404991469,122cyclictest12161-21apt-get00:17:030
31404991468,20cyclictest18875-21/usr/sbin/munin20:30:470
31404991467,23cyclictest22814-21df20:45:220
31404991467,18cyclictest9313-21ntpq00:05:440
314049914627,107cyclictest29511-21sshd23:16:420
314049914610,123cyclictest1801-21node19:30:500
31404991457,19cyclictest1356-21snmpd00:14:210
31404991449,18cyclictest1356-21snmpd23:24:090
31404991449,122cyclictest1801-21node21:32:000
31404991448,18cyclictest325-21wget19:15:180
31404991448,124cyclictest1356-21snmpd19:52:440
31404991446,16cyclictest19535-21fw_conntrack22:40:250
31404991445,13cyclictest18586-21mailstats22:35:470
314049914414,112cyclictest7342-21sshd23:58:410
31404991438,19cyclictest1714-21/usr/sbin/munin23:35:350
31404991436,122cyclictest1801-21node21:21:560
314049914319,110cyclictest1356-21snmpd21:13:430
31404991427,17cyclictest4349-21ps23:45:480
314049914229,102cyclictest20470-21seq20:35:360
31404991418,15cyclictest15852chrt19:20:160
31404991417,19cyclictest4705-21grep21:40:420
31404991417,16cyclictest27661-21wget23:10:170
31404991416,124cyclictest20731-21seq22:45:170
314049914136,93cyclictest11698-21runrttasks20:01:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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