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2026-06-08 - 16:55
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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 Jun 08, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1403726520,12sleep014036-21latency_hist07:10:010
140759915744,34cyclictest19332-21latency_hist11:45:070
140759915737,30cyclictest9025-21/usr/sbin/munin11:05:080
23549211111,86sleep023564-21irqstats07:45:290
17330210814,82sleep016538-21apt-get07:20:420
495921075,10sleep04957-21ntp_states08:40:420
3130621069,84sleep031307-21diskstats10:25:230
1468321056,87sleep014712-21sendmail_mailtr07:10:470
373521047,11sleep01608-21ntpd08:35:450
2389321045,12sleep023905-21irqstats09:55:310
2736321035,10sleep01305-21snmpd10:10:130
3188921015,85sleep031911-21latency_hist08:20:040
1049421016,81sleep010496-21fw_forwarded_lo11:10:280
885421006,83sleep08872-21/usr/sbin/munin08:55:480
2106121005,82sleep021087-21wget11:50:170
205172995,12sleep019253-21apt-get11:47:010
159462994,11sleep01305-21snmpd09:24:170
55202986,81sleep04778-21apt-get10:50:340
308022985,82sleep030803-21users12:26:350
144212956,78sleep014415-21apt-get09:17:040
233962924,10sleep023397-21sshd09:54:150
14075999244,13cyclictest26300-21seq10:05:190
321992915,69sleep032202-21diskstats08:20:200
210162915,72sleep021030-21if_err_eth007:35:290
170712916,74sleep017074-21df_inode11:35:190
14075999131,51cyclictest0-21swapper/009:45:130
171322904,7sleep00-21swapper/009:28:500
14075999039,34cyclictest15772-21grep11:30:220
14075998840,29cyclictest7788-21aten_r7power_cu11:00:090
263582876,70sleep026356-21ntp_states12:10:400
251042875,69sleep025106-21fw_forwarded_lo10:00:260
14075998548,26cyclictest0-21swapper/007:50:210
14075998543,29cyclictest3650irq/20-4900000009:10:360
14075998528,19cyclictest5808-21cut08:45:120
1407599849,57cyclictest2010-21node08:10:160
14075998441,28cyclictest10250irq/56-4a10000007:15:480
206352834,7sleep00-21swapper/009:41:490
14075998340,29cyclictest28366-21basename12:20:020
14075998338,29cyclictest10250irq/56-4a10000011:15:170
14075998334,33cyclictest101ktimersoftd/007:25:270
14075998330,33cyclictest9542-21cat09:00:140
14075998329,37cyclictest7644-21munin-plugin-st11:00:010
14075998251,15cyclictest10150irq/55-4a10000008:50:230
14075998149,14cyclictest10150irq/55-4a10000009:40:000
14075998122,29cyclictest15212-21apt-key11:30:070
14075998122,27cyclictest24968-21/usr/sbin/munin12:05:320
1407599807,37cyclictest29354-21apt-cache10:17:120
14075998050,18cyclictest22103-21/usr/sbin/munin07:40:130
14075998038,28cyclictest101ktimersoftd/010:45:140
14075997950,12cyclictest10150irq/55-4a10000012:25:020
14075997949,14cyclictest10150irq/55-4a10000010:40:290
14075997945,23cyclictest101ktimersoftd/007:30:220
14075997938,28cyclictest3650irq/20-4900000011:20:220
14075997934,31cyclictest10250irq/56-4a10000012:00:490
14075997848,14cyclictest10150irq/55-4a10000010:35:220
14075997830,32cyclictest22658-21/usr/sbin/munin11:55:410
14075997828,37cyclictest10250irq/56-4a10000008:05:560
14075997760,10cyclictest101ktimersoftd/008:25:220
14075997756,13cyclictest101ktimersoftd/008:00:500
14075997749,13cyclictest10150irq/55-4a10000009:10:030
14075997745,14cyclictest10150irq/55-4a10000012:35:180
14075997736,29cyclictest3650irq/20-4900000009:30:170
1407599767,33cyclictest418-21sendmail_mailtr10:30:470
14075997556,12cyclictest101ktimersoftd/007:55:180
14075997547,13cyclictest10150irq/55-4a10000012:35:010
14075997545,13cyclictest10150irq/55-4a10000008:30:270
14075997445,13cyclictest10150irq/55-4a10000010:21:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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