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2025-11-14 - 02:29
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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 Thu Nov 13, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1655024340,7sleep016545-21wget07:05:120
177089917010,97cyclictest31474-21apt-get12:17:120
17708991657,103cyclictest21986-21/usr/sbin/munin11:40:440
177089916323,117cyclictest1424-21nginx07:20:210
17708991607,132cyclictest28431-21sshd07:50:400
177089916027,113cyclictest1424-21nginx07:55:550
17708991597,95cyclictest13979-21apt-get11:12:090
177089915928,110cyclictest1356-21snmpd08:15:360
17708991588,112cyclictest4004-21latency_hist10:30:030
17708991586,94cyclictest31010-21apt-get10:12:080
177089915827,111cyclictest1356-21snmpd09:39:500
177089915726,109cyclictest25671-21sshd07:40:390
177089915715,120cyclictest1424-21nginx08:26:150
17708991569,125cyclictest1336-21runrttasks12:05:340
17708991568,110cyclictest1356-21snmpd12:10:390
17708991559,91cyclictest1356-21snmpd08:38:450
17708991549,107cyclictest12008-21ntp_states11:00:420
177089915449,93cyclictest27283-21/usr/sbin/munin12:00:330
177089915426,101cyclictest1356-21snmpd12:22:420
17708991537,91cyclictest986-21diskstats12:25:240
17708991537,110cyclictest26933-21ntp_states07:45:430
17708991537,109cyclictest6522-21ntp_states08:30:460
17708991537,107cyclictest26014-21irqstats11:55:340
17708991536,106cyclictest1801-21node09:15:430
177089915319,118cyclictest13991-21http11:10:050
177089915311,104cyclictest20936-21diskstats11:35:260
17708991528,108cyclictest19228-21df_inode07:15:200
17708991528,106cyclictest25158-21munin-run07:40:020
177089915216,115cyclictest1356-21snmpd10:45:420
17708991518,131cyclictest612-21apt-get08:07:130
177089915144,94cyclictest23488-21/usr/sbin/munin11:45:280
177089915137,103cyclictest26200-21aten_r7power_vo09:50:160
177089915126,105cyclictest21634-21wget07:25:150
177089915117,115cyclictest1356-21snmpd09:49:520
177089915110,106cyclictest670-21ntp_states10:15:420
17708991508,103cyclictest18195-21ntp_states07:10:430
17708991507,90cyclictest18852-21users11:25:520
17708991507,122cyclictest1356-21snmpd08:20:280
177089915050,85cyclictest101ktimersoftd/008:45:240
17708991499,101cyclictest31012-21munin-run10:10:020
17708991499,100cyclictest1356-21snmpd09:24:420
17708991497,122cyclictest12750-21chrt08:55:420
17708991495,90cyclictest2051-21/usr/sbin/munin12:30:230
177089914924,87cyclictest802-21dbus-daemon09:00:460
177089914921,91cyclictest22905-21wget07:30:170
17708991487,89cyclictest24007-21ntp_states09:40:470
17708991486,121cyclictest9491-21seq08:42:530
177089914843,94cyclictest16900-21runrttasks09:12:210
177089914814,113cyclictest1356-21snmpd10:35:410
17708991476,86cyclictest21304-21df_inode09:30:220
17708991468,103cyclictest1356-21snmpd08:53:490
17708991466,122cyclictest27516-21df09:55:190
177089914633,102cyclictest31804-21apt-get08:05:040
177089914629,99cyclictest19484-21/usr/sbin/munin11:30:310
17708991456,117cyclictest1356-21snmpd12:35:500
177089914512,99cyclictest1356-21snmpd09:08:570
17708991447,121cyclictest15800-21/usr/sbin/munin11:15:180
177089914427,97cyclictest1424-21nginx10:56:310
17708991438,99cyclictest25680-21cat11:55:040
17708991438,116cyclictest1424-21nginx09:26:120
177089914330,100cyclictest1801-21node10:51:320
17708991427,94cyclictest1829-21df10:20:180
177089914240,88cyclictest10150irq/55-4a10000010:40:060
177089914142,87cyclictest1952-21runrttasks08:12:340
177089914141,88cyclictest4584-21processes10:30:450
17708991407,122cyclictest18127-21/usr/sbin/munin11:25:020
177089913935,92cyclictest28828-21seq10:00:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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