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2026-09-11 - 10:51
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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 Sep 10, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20878221731,52sleep00-21swapper/007:07:080
212829918531,109cyclictest1408-21nginx11:40:150
21282991705,15cyclictest27478-21apt-get07:37:080
212829916540,109cyclictest10250irq/56-4a10000010:20:560
21282991629,91cyclictest17875-21apt-get09:07:140
212829916033,105cyclictest8420-21runrttasks08:25:380
212829916026,114cyclictest805-21rs:main0
21282991597,97cyclictest24299-21sshd11:35:190
21282991588,113cyclictest6541-21sshd12:32:570
21282991585,13cyclictest25848-21/usr/sbin/munin09:35:500
21282991579,111cyclictest16962-21diskstats09:00:210
21282991576,132cyclictest1305-21snmpd10:35:380
212829915724,113cyclictest12392-21apt-get10:52:130
21282991567,110cyclictest27480-21munin-run07:35:030
21282991566,14cyclictest10713-21df_inode08:35:200
21282991559,110cyclictest30363-21ntp_states09:50:400
21282991558,15cyclictest28235-21apt-get09:47:080
21282991557,16cyclictest25018-21ntp_states09:30:460
21282991557,106cyclictest29273-21df11:55:180
21282991556,15cyclictest4548-21apt-get10:17:060
212829915540,104cyclictest27221-21cut09:40:140
21282991547,110cyclictest13070-21wget08:45:120
21282991547,108cyclictest1679-21ntp_states10:05:410
21282991546,128cyclictest14250-21/usr/sbin/munin08:50:440
21282991539,106cyclictest30741-21ntp_states12:00:420
21282991538,18cyclictest16829-21df_inode11:05:190
212829915324,110cyclictest1408-21nginx08:34:440
21282991528,90cyclictest30867-21ntp_states07:45:390
21282991528,14cyclictest11667-21ntp_states10:45:420
21282991528,122cyclictest31331-21grep09:55:150
21282991527,124cyclictest29267-21aten_r7power_cu07:40:120
21282991526,103cyclictest20622-21fw_forwarded_lo11:20:270
21282991518,123cyclictest812-21avahi-daemon12:13:110
21282991517,123cyclictest1305-21snmpd11:10:520
21282991516,19cyclictest3189-21fw_forwarded_lo12:20:280
21282991505,125cyclictest32023-21pluginstate12:05:480
212829915027,106cyclictest14523-21ntp_states10:55:380
212829915014,95cyclictest1408-21nginx08:24:420
21282991499,103cyclictest10427-21ntp_states10:40:410
21282991498,99cyclictest23059-21df_inode11:30:180
21282991496,123cyclictest3493-21sshd08:05:440
21282991496,123cyclictest31830-21wget07:50:140
212829914925,107cyclictest15504-21wget11:00:140
212829914910,117cyclictest21040-21df09:15:180
212829914910,106cyclictest1305-21snmpd11:25:550
21282991488,120cyclictest805-21rs:main0
212829914836,101cyclictest16212-21runrttasks08:56:380
21282991479,96cyclictest4593-21memory08:10:320
21282991477,121cyclictest1305-21snmpd12:15:120
21282991477,120cyclictest1305-21snmpd09:25:100
21282991468,99cyclictest1305-21snmpd07:29:390
21282991468,123cyclictest7184-21wget12:35:180
21282991467,119cyclictest19368-21if_err_eth011:15:300
212829914639,98cyclictest12769-21seq08:43:580
212829914542,90cyclictest21370-21/usr/sbin/munin07:10:130
212829914532,101cyclictest2010-21node07:15:310
212829914515,111cyclictest6319-21wget10:25:140
212829914514,113cyclictest787-21haveged10:05:030
21282991447,118cyclictest26603-21/usr/sbin/munin11:45:460
212829914435,97cyclictest8327-21sshd10:32:180
21282991439,103cyclictest2745-21diskstats10:10:200
21282991437,99cyclictest2897-21seq08:04:500
21282991437,117cyclictest4378-21sshd12:25:190
21282991436,116cyclictest28032-21df11:50:160
212829914340,92cyclictest23344-21latency_hist09:25:040
212829914335,98cyclictest1254-21runrttasks07:56:440
21282991425,125cyclictest23934-21grep07:20:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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