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2026-04-18 - 15:48
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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 all highest latencies:
System rackcslot2.osadl.org (updated Sat Apr 18, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205852710,1sleep020581-21seq10:59:260
2313226855,8sleep10-21swapper/107:05:251
98162660,0sleep09815-21seq09:59:240
2316626552,8sleep00-21swapper/007:05:460
23670993632,3cyclictest28379-21/usr/sbin/munin07:19:271
23670993632,3cyclictest11803-21sensors_temp07:59:271
23670993532,2cyclictest20360-21users12:29:291
23669993535,0cyclictest0-21swapper/009:14:120
23670993431,2cyclictest9842-21ls09:59:241
23670993430,3cyclictest26899-21df11:09:201
23670993430,3cyclictest22405-21ssh10:17:121
23670993430,3cyclictest17685-21ssh10:55:031
23670993430,2cyclictest30107-21ls07:24:261
23670993331,1cyclictest23404-21diskstats11:04:221
23670993330,2cyclictest8055-21ssh12:13:551
23670993330,2cyclictest520-21ssh12:03:061
23670993330,2cyclictest22594-21apache_volume12:34:201
23670993330,2cyclictest21308-21rt-features08:24:271
23670993330,2cyclictest13010-21df_inode10:04:191
23670993330,2cyclictest12759-21ls10:49:201
23670993330,2cyclictest0-21swapper/111:57:251
23670993329,3cyclictest30184-21diskstats08:49:211
23670993327,4cyclictest736-21munin-run07:34:081
23670993322,10cyclictest22501-21df08:29:221
2367099328,4cyclictest91rcu_preempt11:49:381
23670993230,2cyclictest5152-21diskmemload11:21:121
23670993230,2cyclictest31196-21if_eth110:29:231
23670993230,2cyclictest15625-21mailstats08:09:271
23670993230,1cyclictest21054-21users10:59:281
23670993229,2cyclictest5152-21diskmemload12:21:461
23670993229,2cyclictest5152-21diskmemload10:25:591
23670993229,2cyclictest4366-21grep07:39:291
23670993229,2cyclictest27939-21memory09:39:241
23670993229,2cyclictest26025-21ssh10:22:081
23670993229,2cyclictest24299-21sort07:09:241
23670993229,2cyclictest0-21swapper/112:04:451
23670993229,2cyclictest0-21swapper/110:36:481
23670993228,3cyclictest30807-21ssh09:44:241
23670993228,3cyclictest0-21swapper/110:09:481
23670993228,3cyclictest0-21swapper/107:34:211
23670993227,4cyclictest0-21swapper/111:28:171
23670993224,7cyclictest5152-21diskmemload09:23:101
23670993129,2cyclictest17936-21ssh09:24:541
23670993129,1cyclictest9067-21df07:54:201
23670993129,1cyclictest9067-21df07:54:201
23670993129,1cyclictest1696-21df08:59:211
23670993128,2cyclictest18228-21ssh12:27:371
23670993128,2cyclictest0-21swapper/111:40:541
23670993128,2cyclictest0-21swapper/108:19:271
23670993127,3cyclictest5152-21diskmemload09:58:151
23670993125,5cyclictest5730-21perl09:09:231
23670993125,5cyclictest10368-21ssh12:16:061
23670993125,5cyclictest0-21swapper/111:31:301
23670993123,7cyclictest20540-21/usr/sbin/munin11:44:281
23670993120,8cyclictest29064-21sensors_temp08:44:281
23670993028,2cyclictest0-21swapper/108:14:271
23670993027,2cyclictest9315-21diskstats10:44:201
23670993027,2cyclictest7161-21df_inode07:49:211
23670993027,2cyclictest5152-21diskmemload09:50:401
23670993026,3cyclictest9135-21ssh09:14:141
23670993023,6cyclictest13915-21grep08:04:301
23670992927,2cyclictest5152-21diskmemload11:18:211
23670992926,2cyclictest5838-21pluginstate07:44:271
23670992926,2cyclictest5502-21apache_volume10:39:191
23670992926,2cyclictest25060-21unixbench_multi09:34:291
23670992925,3cyclictest20084-21apache_volume09:29:191
23670992922,5cyclictest12336-21apache_accesses11:34:191
23670992914,14cyclictest0-21swapper/108:34:201
23670992825,2cyclictest27181-21switchtime08:39:261
23669992810,0cyclictest0-21swapper/010:05:000
2366999280,7cyclictest5086-21apache_processe11:24:190
23670992718,5cyclictest3606-21df09:04:211
23669992710,12cyclictest0-21swapper/009:40:410
2367099267,12cyclictest0-21swapper/108:54:231
23670992624,2cyclictest0-21swapper/107:17:011
23669992610,8cyclictest0-21swapper/009:28:450
23669992512,3cyclictest0-21swapper/012:08:360
23669992511,10cyclictest100250irq/107-eth1-rx09:37:200
2366999250,4cyclictest0-21swapper/011:29:170
2366999245,18cyclictest0-21swapper/009:58:010
23669992421,3cyclictest1113-21apache212:20:080
23669992413,4cyclictest100250irq/107-eth1-rx10:34:280
23669992411,6cyclictest0-21swapper/010:54:270
23669992411,12cyclictest0-21swapper/010:51:470
2366999240,11cyclictest0-21swapper/007:39:200
23669992318,4cyclictest1113-21apache212:26:160
23669992317,5cyclictest7768-21munin-node12:16:280
23669992310,6cyclictest0-21swapper/010:09:200
23669992310,6cyclictest0-21swapper/009:19:390
2366999230,4cyclictest0-21swapper/011:38:140
2366999221,16cyclictest21459-21kworker/0:011:09:280
23669992210,5cyclictest0-21swapper/010:14:200
23669992210,4cyclictest0-21swapper/012:37:510
2366999220,6cyclictest0-21swapper/009:44:320
23669992114,5cyclictest643-21nscd12:13:330
23669992110,5cyclictest0-21swapper/010:29:250
23669992110,4cyclictest0-21swapper/007:59:190
23669992110,3cyclictest0-21swapper/008:29:210
23669992110,1cyclictest0-21swapper/011:41:220
2366999203,11cyclictest0-21swapper/011:44:190
2366999203,10cyclictest0-21swapper/008:24:210
23669992010,9cyclictest0-21swapper/010:21:540
23669992010,6cyclictest0-21swapper/012:29:260
23669992010,5cyclictest0-21swapper/007:29:210
23669992010,4cyclictest0-21swapper/010:44:190
23669992010,4cyclictest0-21swapper/009:29:270
23669992010,1cyclictest0-21swapper/009:52:140
126122010,0sleep00-21swapper/011:18:560
2366999195,8cyclictest0-21swapper/007:49:220
2366999193,7cyclictest357-21/usr/sbin/munin08:54:280
23669991915,2cyclictest1113-21apache212:03:060
2366999191,17cyclictest81ktimersoftd/010:24:270
23669991911,4cyclictest24556-21fw_packets08:34:230
23669991910,7cyclictest0-21swapper/011:50:470
23669991910,7cyclictest0-21swapper/011:20:360
23669991910,5cyclictest0-21swapper/009:04:290
23669991910,5cyclictest0-21swapper/007:19:200
23669991910,4cyclictest0-21swapper/011:04:240
2366999183,10cyclictest0-21swapper/007:34:250
23669991810,3cyclictest0-21swapper/011:54:190
2366999180,13cyclictest0-21swapper/010:40:490
2366999167,7cyclictest0-21swapper/008:49:220
2366999164,8cyclictest0-21swapper/008:59:210
2366999163,8cyclictest0-21swapper/007:09:230
23669991616,0cyclictest5390-21/usr/sbin/munin09:09:250
23669991610,6cyclictest0-21swapper/008:06:580
23669991610,4cyclictest0-21swapper/008:19:240
23669991610,4cyclictest0-21swapper/008:12:470
23669991610,2cyclictest0-21swapper/008:44:210
2366999160,13cyclictest0-21swapper/007:56:110
2366999160,13cyclictest0-21swapper/007:56:110
2366999156,5cyclictest0-21swapper/007:24:290
2366999152,7cyclictest0-21swapper/007:44:220
23669991510,1cyclictest0-21swapper/007:18:090
2366999142,6cyclictest16539-21/usr/sbin/munin08:14:210
23669991410,0cyclictest0-21swapper/008:39:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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