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2026-04-21 - 07:07
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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 Mon Apr 20, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6421221531,53sleep00-21swapper/007:06:300
689799187109,66cyclictest0-21swapper/007:10:030
68979917741,14cyclictest10250irq/56-4a10000008:20:510
68979917539,16cyclictest10250irq/56-4a10000007:39:580
68979917442,16cyclictest10250irq/56-4a10000010:50:500
68979917237,17cyclictest10250irq/56-4a10000012:26:260
68979916938,13cyclictest10250irq/56-4a10000011:51:030
68979916543,14cyclictest10150irq/55-4a10000010:00:400
68979916235,18cyclictest304462chrt10:47:160
68979916234,17cyclictest22220-21seq12:24:210
68979916142,13cyclictest10150irq/55-4a10000012:30:130
68979915938,13cyclictest10150irq/55-4a10000009:41:130
68979915847,92cyclictest8950irq/40-mmc112:00:230
68979915827,21cyclictest1305-21snmpd12:16:220
68979915822,14cyclictest25414-21latency_hist10:30:020
68979915742,103cyclictest17465-21mailstats09:56:350
68979915736,17cyclictest122682chrt07:30:320
68979915729,16cyclictest30394-21entropy08:40:240
6897991568,16cyclictest21214-21sshd10:11:140
68979915643,17cyclictest7090-21cron11:25:010
68979915610,23cyclictest1670-21df_inode08:55:200
6897991559,21cyclictest2421-21diskstats11:05:200
68979915540,103cyclictest26537-21runrttasks10:34:040
68979915534,11cyclictest10150irq/55-4a10000010:17:110
68979915439,18cyclictest5207-21sendmail_mailst11:15:410
68979915438,16cyclictest148772chrt11:55:250
68979915437,16cyclictest20079-21munin-run08:00:010
6897991537,22cyclictest5246-21wget09:10:130
6897991527,20cyclictest8500-21wget11:30:110
6897991526,21cyclictest17212-21apt-get07:52:100
68979915243,14cyclictest10150irq/55-4a10000008:17:030
68979915241,26cyclictest15098-21diskstats07:40:390
68979915238,23cyclictest11181-21fw_forwarded_lo11:40:250
68979915238,17cyclictest124922chrt09:39:220
68979915236,13cyclictest10250irq/56-4a10000008:45:130
6897991519,18cyclictest8430-21diskstats07:15:230
68979915141,96cyclictest17235-21https07:50:050
6897991505,20cyclictest28416-21/usr/sbin/munin10:40:480
68979915036,17cyclictest29111-21df08:35:200
68979915036,13cyclictest0-21swapper/012:05:460
6897991498,18cyclictest27673-21/usr/sbin/munin08:30:110
6897991497,17cyclictest1305-21snmpd09:30:350
68979914941,95cyclictest23516-21runrttasks08:12:330
68979914939,15cyclictest374-21seq08:50:160
68979914927,23cyclictest2010-21node09:06:060
68979914849,89cyclictest27508-21seq10:35:560
68979914835,11cyclictest10150irq/55-4a10000009:20:140
68979914832,14cyclictest0-21swapper/011:36:140
68979914827,17cyclictest25672-21df12:35:290
68979914752,86cyclictest21971-21grep08:05:460
68979914742,18cyclictest19525-21/usr/sbin/munin10:05:230
68979914741,12cyclictest27542-21seq08:29:540
68979914740,95cyclictest9107-21cpu09:25:150
68979914740,19cyclictest1276-21runrttasks09:50:200
68979914735,16cyclictest1408-21nginx09:46:170
68979914710,28cyclictest0-21swapper/011:26:110
6897991467,18cyclictest10785-21aten_r7power_en07:25:140
68979914542,12cyclictest10150irq/55-4a10000010:21:240
68979914540,18cyclictest10675-21date07:25:040
68979914441,17cyclictest32515-21runrttasks10:55:350
68979914440,15cyclictest3539-21aten_r7power_vo11:10:120
68979914440,15cyclictest1276-21runrttasks09:00:380
68979914437,19cyclictest12800-21/usr/sbin/munin11:45:470
68979914244,15cyclictest7160-21seq09:16:270
68979914239,17cyclictest20994-21runrttasks08:02:090
68979914238,17cyclictest19245-21runrttasks12:12:280
68979914236,17cyclictest1850-21runrttasks11:03:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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