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2026-05-07 - 12:09
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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
Characteristics of the 792 highest latencies:
System rackcslot2.osadl.org (updated Thu May 07, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149422680,0sleep014938-21seq20:19:110
231502670,0sleep10-21swapper/123:00:211
2016526654,8sleep10-21swapper/119:08:481
1974526552,8sleep00-21swapper/019:04:230
20365993838,0cyclictest0-21swapper/020:34:410
20366993710,5cyclictest0-21swapper/122:38:031
20365992927,1cyclictest0-21swapper/019:20:570
20365992910,16cyclictest0-21swapper/023:00:570
20366992810,9cyclictest100150irq/106-eth1-rx23:31:331
20365992810,12cyclictest0-21swapper/023:33:470
20366992711,8cyclictest14809-21apache222:28:491
2036699265,10cyclictest0-21swapper/120:14:131
20366992610,9cyclictest0-21swapper/123:08:541
2036599261,2cyclictest1246-21ssh23:57:270
20365992610,7cyclictest0-21swapper/021:09:120
20365992523,1cyclictest19847-21ssh22:56:210
20365992510,14cyclictest0-21swapper/022:53:090
20366992421,1cyclictest705-21ntpd00:24:211
20366992418,5cyclictest14835-21apache222:46:401
20366992410,4cyclictest0-21swapper/123:15:371
20366992410,3cyclictest0-21swapper/122:19:051
20365992424,0cyclictest0-21swapper/022:00:000
20365992419,3cyclictest0-21swapper/022:28:140
20365992412,9cyclictest14835-21apache221:41:450
2036699232,16cyclictest0-21swapper/119:09:141
20366992319,2cyclictest705-21ntpd19:15:211
20366992314,7cyclictest14809-21apache222:12:241
2036699231,16cyclictest0-21swapper/122:43:371
2036699231,12cyclictest0-21swapper/121:49:171
20366992310,9cyclictest0-21swapper/121:18:481
20366992310,3cyclictest0-21swapper/123:44:181
20366992310,11cyclictest0-21swapper/120:09:421
20365992321,1cyclictest81ktimersoftd/020:54:200
20365992321,1cyclictest2372-21/usr/sbin/munin22:34:150
20365992318,4cyclictest14835-21apache221:30:170
20365992315,3cyclictest13266-21ssh22:04:230
2036699225,16cyclictest0-21swapper/122:49:411
2036699222,17cyclictest10503-21rm22:01:451
20366992220,0cyclictest0-21swapper/123:34:171
20366992219,2cyclictest705-21ntpd23:19:391
20366992210,5cyclictest0-21swapper/120:54:111
20366992210,4cyclictest20363-21cyclictest21:13:291
2036599222,14cyclictest23387-21apache_processe22:19:090
20365992219,0cyclictest0-21swapper/023:09:420
20365992210,8cyclictest100250irq/107-eth1-rx21:20:150
20365992210,6cyclictest0-21swapper/023:37:010
20365992210,4cyclictest0-21swapper/023:49:110
20365992210,10cyclictest0-21swapper/000:29:200
2036599220,10cyclictest0-21swapper/021:44:010
2036599220,0cyclictest0-21swapper/023:39:320
20366992121,0cyclictest599-21avahi-daemon20:41:181
20366992121,0cyclictest0-21swapper/100:10:591
20366992111,5cyclictest0-21swapper/121:45:581
20366992110,9cyclictest0-21swapper/122:05:511
20366992110,6cyclictest0-21swapper/123:26:151
20366992110,4cyclictest0-21swapper/120:59:121
20366992110,3cyclictest0-21swapper/121:31:071
20366992110,1cyclictest0-21swapper/119:44:001
20365992121,0cyclictest0-21swapper/019:45:210
20365992110,8cyclictest0-21swapper/023:18:160
20365992110,6cyclictest0-21swapper/023:23:030
20365992110,6cyclictest0-21swapper/021:55:090
20365992110,5cyclictest0-21swapper/022:09:110
20365992110,0cyclictest0-21swapper/000:24:170
198252210,0sleep00-21swapper/022:14:130
2796922010,0sleep10-21swapper/121:42:301
2036699202,14cyclictest0-21swapper/120:44:111
20366992017,1cyclictest20363-21cyclictest00:15:081
20366992014,3cyclictest14809-21apache200:08:441
20366992012,5cyclictest0-21swapper/123:58:431
20366992010,3cyclictest0-21swapper/100:32:151
2036599203,10cyclictest0-21swapper/000:04:090
20365992018,1cyclictest14835-21apache223:28:420
20365992010,7cyclictest0-21swapper/021:37:300
20365992010,5cyclictest0-21swapper/023:48:100
20365992010,5cyclictest0-21swapper/000:23:020
20365992010,5cyclictest0-21swapper/000:14:110
20365992010,3cyclictest0-21swapper/022:48:070
20365992010,3cyclictest0-21swapper/021:14:230
20365992010,2cyclictest0-21swapper/019:24:180
1987122010,1sleep10-21swapper/122:56:251
2036699194,6cyclictest0-21swapper/122:14:121
20366991916,1cyclictest14809-21apache220:19:251
20366991912,2cyclictest0-21swapper/123:39:181
20366991910,4cyclictest0-21swapper/121:54:041
20366991910,3cyclictest0-21swapper/123:53:321
20366991910,3cyclictest0-21swapper/121:19:221
2036699190,11cyclictest0-21swapper/122:30:071
2036599196,4cyclictest13879-21hddtemp_smartct21:24:130
2036599192,16cyclictest0-21swapper/020:39:140
20365991919,0cyclictest0-21swapper/019:13:250
20365991910,4cyclictest0-21swapper/019:54:120
20365991910,3cyclictest0-21swapper/019:53:320
20365991910,0cyclictest0-21swapper/020:47:080
2880321810,0sleep00-21swapper/000:37:110
2036699189,6cyclictest0-21swapper/121:26:211
2036699185,12cyclictest0-21swapper/120:49:171
2036699183,7cyclictest0-21swapper/100:03:161
2036699183,11cyclictest0-21swapper/119:19:121
2036699182,7cyclictest0-21swapper/121:34:171
2036699181,9cyclictest0-21swapper/120:29:171
20366991810,1cyclictest0-21swapper/119:29:121
2036699180,11cyclictest0-21swapper/100:19:151
2036599184,5cyclictest0-21swapper/023:59:110
2036599183,14cyclictest0-21swapper/022:29:120
20365991818,0cyclictest0-21swapper/021:04:260
20365991816,1cyclictest0-21swapper/019:59:430
20365991810,7cyclictest0-21swapper/019:34:130
20365991810,4cyclictest0-21swapper/020:29:120
20365991810,4cyclictest0-21swapper/020:24:170
282021710,0sleep10-21swapper/119:45:221
2036699179,6cyclictest0-21swapper/119:54:171
2036699177,9cyclictest0-21swapper/100:34:161
2036699173,5cyclictest167-21systemd-journal19:26:471
2036699172,8cyclictest0-21swapper/120:24:131
2036699171,10cyclictest0-21swapper/119:34:191
20366991710,4cyclictest0-21swapper/120:04:181
20366991710,4cyclictest0-21swapper/119:59:181
20365991710,4cyclictest744-21snmpd20:53:160
20365991710,3cyclictest0-21swapper/021:49:110
20365991710,2cyclictest0-21swapper/020:14:210
20365991710,1cyclictest0-21swapper/023:08:490
20365991710,1cyclictest0-21swapper/000:13:400
2917921610,0sleep10-21swapper/123:09:111
2036699162,9cyclictest22514-21ls20:39:001
2036599164,7cyclictest0-21swapper/020:04:200
2036599163,6cyclictest0-21swapper/022:39:100
2036599162,13cyclictest0-21swapper/019:14:150
20365991610,3cyclictest0-21swapper/019:39:100
2036699153,7cyclictest0-21swapper/119:49:081
20365991511,3cyclictest744-21snmpd21:03:160
20365991510,3cyclictest0-21swapper/020:09:000
20365991510,1cyclictest0-21swapper/019:29:170
2036699144,7cyclictest0-21swapper/121:04:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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