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2025-09-15 - 09:17
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack1slot3.osadl.org (updated Mon Sep 15, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215364599140,12cyclictest0-21swapper/323:55:133
215364599130,8cyclictest0-21swapper/322:40:133
2153645991211,0cyclictest69450irq/121-eno123:50:153
2153645991211,0cyclictest0-21swapper/321:10:153
2153645991210,1cyclictest0-21swapper/323:30:133
215364599120,1cyclictest0-21swapper/320:25:143
215364599120,11cyclictest69450irq/121-eno122:55:133
215364599120,11cyclictest0-21swapper/323:15:153
215364599120,11cyclictest0-21swapper/322:35:013
215364599120,11cyclictest0-21swapper/322:10:163
215364599120,11cyclictest0-21swapper/322:05:173
215364599120,11cyclictest0-21swapper/321:15:143
215364599120,11cyclictest0-21swapper/320:45:133
215364599120,11cyclictest0-21swapper/319:45:013
215364599120,10cyclictest0-21swapper/322:15:113
2153645991111,0cyclictest69450irq/121-eno100:05:203
2153645991111,0cyclictest0-21swapper/322:50:023
2153645991111,0cyclictest0-21swapper/320:10:163
2153645991110,0cyclictest0-21swapper/322:30:013
2153645991110,0cyclictest0-21swapper/321:20:123
2153645991110,0cyclictest0-21swapper/300:10:163
215364599110,10cyclictest69450irq/121-eno123:12:583
215364599110,10cyclictest69450irq/121-eno122:23:563
215364599110,10cyclictest69450irq/121-eno121:45:203
215364599110,10cyclictest0-21swapper/300:25:193
215364599110,0cyclictest0-21swapper/320:20:133
215364599110,0cyclictest0-21swapper/319:50:023
215364599109,1cyclictest69450irq/121-eno120:50:573
215364599109,1cyclictest69450irq/121-eno120:08:163
215364599109,0cyclictest0-21swapper/323:35:123
2153645991010,0cyclictest69450irq/121-eno122:45:193
2153645991010,0cyclictest69450irq/121-eno119:35:023
2153645991010,0cyclictest0-21swapper/319:55:113
2153645991010,0cyclictest0-21swapper/300:35:213
215364599100,9cyclictest69450irq/121-eno121:40:183
215364599100,10cyclictest0-21swapper/300:15:023
215364599100,0cyclictest0-21swapper/323:40:173
215364599100,0cyclictest0-21swapper/322:05:013
215364599100,0cyclictest0-21swapper/321:00:003
215364599100,0cyclictest0-21swapper/320:35:123
215364599100,0cyclictest0-21swapper/319:20:193
215364599100,0cyclictest0-21swapper/300:30:043
21536459999,0cyclictest69450irq/121-eno123:05:133
21536459999,0cyclictest69450irq/121-eno121:59:383
21536459999,0cyclictest69450irq/121-eno121:29:523
21536459999,0cyclictest69450irq/121-eno119:53:173
21536459999,0cyclictest0-21swapper/321:05:203
21536459998,0cyclictest0-21swapper/323:45:153
21536459998,0cyclictest0-21swapper/322:35:173
21536459998,0cyclictest0-21swapper/319:15:013
21536459990,8cyclictest69450irq/121-eno123:25:243
21536459990,8cyclictest69450irq/121-eno123:22:283
21536459990,8cyclictest69450irq/121-eno121:50:143
21536459990,0cyclictest0-21swapper/321:30:213
21536459990,0cyclictest0-21swapper/320:00:173
21536459988,0cyclictest69450irq/121-eno100:20:533
21536459988,0cyclictest0-21swapper/320:35:003
21536459987,0cyclictest0-21swapper/321:05:003
21536459987,0cyclictest0-21swapper/319:25:133
21536459986,1cyclictest0-21swapper/323:00:133
21536459980,7cyclictest69450irq/121-eno120:15:133
21536459977,0cyclictest69450irq/121-eno121:35:133
21536459970,7cyclictest0-21swapper/320:43:173
21536459970,6cyclictest69450irq/121-eno119:35:223
21536459960,5cyclictest69450irq/121-eno119:15:183
21536459955,0cyclictest69450irq/121-eno100:00:163
2152685251,2sleep30-21swapper/319:05:213
2152685251,2sleep30-21swapper/319:05:203
2281525240,2sleep00-21swapper/000:22:450
2221696240,4sleep00-21swapper/022:01:450
2184984240,4sleep10-21swapper/120:26:551
2153072242,1sleep10-21swapper/119:05:221
2153072242,1sleep10-21swapper/119:05:221
2152805240,3sleep02153071-21unixbench_singl19:05:210
2152805240,3sleep02153071-21unixbench_singl19:05:210
2246144230,1sleep12246170-21apt-get23:00:131
2178598230,2sleep02178771-21smartctl20:10:210
2160479230,1sleep22160634-21memory19:25:172
2151824231,1sleep20-21swapper/219:05:122
2151824231,1sleep20-21swapper/219:05:112
2279358220,0sleep00-21swapper/000:17:180
2278280220,1sleep10-21swapper/100:15:181
2274717220,0sleep00-21swapper/000:05:320
2271307220,1sleep22271333-21apt-get00:00:142
2266196220,0sleep00-21swapper/023:45:230
2257414220,1sleep22257484-21processes23:25:202
2236438220,1sleep02236594-21sendmail_mailtr22:35:180
2229135220,0sleep00-21swapper/022:20:130
2228194222,0sleep00-21swapper/022:16:290
2215520220,1sleep12215524-21cron21:50:001
2208253220,1sleep12208361-21/usr/sbin/munin21:30:191
2207725220,1sleep22207996-21df_inode21:30:162
2205570220,1sleep02205670-21aten_r1power_po21:25:140
2205146222,0sleep00-21swapper/021:23:300
2195435220,1sleep02195655-21grep21:00:010
2193348220,0sleep00-21swapper/020:52:480
2192471220,1sleep12192623-21ntp_states20:50:171
2175912220,1sleep10-21swapper/120:05:141
2172780220,0sleep00-21swapper/019:55:160
2169619220,1sleep12169635-21apt-get19:50:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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