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2026-06-02 - 18:20
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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 highest latencies:
System rackcslot2.osadl.org (updated Tue Jun 02, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2243827057,9sleep10-21swapper/107:03:561
2393626856,8sleep00-21swapper/007:06:120
226782650,1sleep00-21swapper/010:54:470
201752650,0sleep00-21swapper/010:52:260
2436599359,8cyclictest91rcu_preempt11:04:050
24365993532,2cyclictest23209-21apache_processe10:13:590
24365993532,2cyclictest23209-21apache_processe10:13:590
24365993532,2cyclictest14822-21latency_hist11:28:470
24365993531,3cyclictest5074-21apache_volume11:58:580
24365993531,3cyclictest25315-21ssh11:42:390
24365993432,2cyclictest5899-21diskmemload11:14:190
24365993431,2cyclictest8163-21sed09:53:470
24365993431,2cyclictest1819-21apache207:33:480
24365993431,2cyclictest1346-21apache_accesses11:53:590
24365993431,2cyclictest11066-21ps09:14:060
24365993430,3cyclictest27024-21ssh12:28:300
24365993424,9cyclictest18866-21diskstats11:34:010
24365993331,1cyclictest5771-21awk10:33:480
24365993331,1cyclictest27110-21apache_volume10:18:590
24365993331,1cyclictest12436-21apache_processe12:08:580
24365993331,1cyclictest11544-21apache_volume07:58:580
24365993330,3cyclictest0-21swapper/009:09:380
24365993330,2cyclictest31123-21diskstats10:24:010
24365993330,2cyclictest310-21memory07:29:030
24365993330,2cyclictest30418-21df_inode07:23:590
24365993330,2cyclictest23386-21cron12:23:470
24365993330,2cyclictest15823-21cat08:08:590
24365993330,2cyclictest1199-21runrttasks09:26:210
24365993329,3cyclictest32241-21sh11:51:120
24365993321,11cyclictest29486-21diskstats09:38:590
24365993231,1cyclictest28295-21apache_accesses07:18:580
24365993230,2cyclictest0-21swapper/012:29:140
24365993229,3cyclictest5899-21diskmemload11:00:390
24365993229,2cyclictest119912sleep012:08:190
24365993229,2cyclictest119912sleep012:08:190
24365993226,5cyclictest9227-21ssh11:20:120
24366993110,18cyclictest0-21swapper/112:07:261
24366993110,18cyclictest0-21swapper/112:07:261
24365993129,2cyclictest5899-21diskmemload11:09:230
24365993129,2cyclictest0-21swapper/010:44:410
24365993129,1cyclictest28801-21apache_processe08:43:590
24365993129,1cyclictest16337-21df_inode12:13:580
24365993128,2cyclictest8465-21df09:53:590
24365993128,2cyclictest2589-21chrt09:45:120
24365993128,2cyclictest14252-21ssh10:01:030
24365993128,2cyclictest0-21swapper/011:44:040
24365993127,3cyclictest26963-21cat07:14:020
24365993127,3cyclictest10553-21ntpdc10:39:040
24365993120,9cyclictest5899-21diskmemload10:09:580
24365993118,9cyclictest8906-21sed07:49:080
2436699300,0cyclictest0-21swapper/110:56:001
24365993028,1cyclictest22963-21ssh09:29:110
24365993027,2cyclictest19999-21open_files08:19:020
24365993026,3cyclictest5458-21taskset09:04:230
24365993026,3cyclictest27764-21ssh09:36:000
24365993023,6cyclictest227512sleep008:27:360
24365993023,6cyclictest0-21swapper/012:36:440
24365993017,12cyclictest0-21swapper/009:23:270
24365992927,1cyclictest17239-21users10:04:080
24365992926,2cyclictest25774-21chrt07:09:320
24365992924,4cyclictest0-21swapper/011:29:050
24365992915,12cyclictest265422sleep008:37:110
24365992825,2cyclictest28655-21munin-run08:43:480
24365992825,2cyclictest18711-21runrttasks08:15:340
24365992825,2cyclictest0-21swapper/007:43:580
24366992710,2cyclictest0-21swapper/112:02:471
24365992725,1cyclictest2443-21df_inode08:59:000
24365992724,2cyclictest0-21swapper/008:29:000
24365992624,2cyclictest0-21swapper/007:56:580
24365992621,4cyclictest695-21if_eth108:54:030
24366992511,10cyclictest100150irq/106-eth1-rx09:37:111
24366992510,9cyclictest0-21swapper/111:26:341
24365992519,6cyclictest0-21swapper/007:40:150
24365992516,4cyclictest648-21nscd10:33:530
24365992513,7cyclictest0-21swapper/008:48:590
24366992410,6cyclictest0-21swapper/111:19:021
24366992410,4cyclictest0-21swapper/109:19:581
24366992323,0cyclictest0-21swapper/107:12:091
24366992322,1cyclictest0-21swapper/110:00:281
2436699232,19cyclictest100250irq/107-eth1-rx10:31:241
24366992321,1cyclictest0-21swapper/111:30:401
24366992310,8cyclictest0-21swapper/107:29:031
24366992310,6cyclictest0-21swapper/112:23:551
24366992310,4cyclictest0-21swapper/109:15:361
24366992310,0cyclictest0-21swapper/107:43:591
2436699230,16cyclictest0-21swapper/109:47:121
2436699226,9cyclictest16620-21/usr/sbin/munin12:14:011
2436699221,6cyclictest0-21swapper/112:31:381
24366992211,8cyclictest649-21nscd11:08:451
24366992211,4cyclictest0-21swapper/109:39:021
24366992210,7cyclictest0-21swapper/112:20:041
2436699214,12cyclictest0-21swapper/111:14:081
2436699214,11cyclictest0-21swapper/108:04:061
2436699213,14cyclictest0-21swapper/110:59:071
24366992118,1cyclictest1199-21runrttasks11:34:021
24366992114,2cyclictest0-21swapper/107:39:011
2436699211,18cyclictest0-21swapper/111:47:061
24366992111,3cyclictest0-21swapper/110:11:031
24366992110,9cyclictest0-21swapper/109:24:281
2436699210,13cyclictest0-21swapper/108:19:041
2436599212,15cyclictest0-21swapper/008:03:590
2436699205,9cyclictest0-21swapper/111:54:001
2436699205,11cyclictest0-21swapper/110:04:081
24366992015,4cyclictest1857-21apache211:11:231
24366992010,4cyclictest0-21swapper/110:23:591
2436699200,1cyclictest28525-21kworker/u4:211:49:561
2436699200,12cyclictest0-21swapper/107:58:581
2846021910,0sleep10-21swapper/110:19:091
2436699195,5cyclictest5899-21diskmemload09:55:041
2436699194,7cyclictest5899-21diskmemload09:09:001
2436699193,8cyclictest0-21swapper/112:08:581
24366991919,0cyclictest0-21swapper/108:15:181
24366991918,1cyclictest0-21swapper/110:41:481
24366991910,4cyclictest0-21swapper/110:43:561
24366991910,1cyclictest0-21swapper/109:29:161
2436699190,0cyclictest91rcu_preempt10:16:591
2436699190,0cyclictest91rcu_preempt10:16:591
2854721810,1sleep10-21swapper/108:43:001
2436699184,9cyclictest0-21swapper/110:49:011
2436699183,4cyclictest5899-21diskmemload12:37:081
24366991811,6cyclictest4079-21kworker/1:007:52:301
24366991810,7cyclictest0-21swapper/108:49:031
24366991810,1cyclictest0-21swapper/110:35:311
3181921710,0sleep10-21swapper/107:27:291
24366991714,1cyclictest1872-21apache208:13:401
24366991711,5cyclictest27088-21netstat07:14:031
24366991710,4cyclictest0-21swapper/108:24:001
24366991710,4cyclictest0-21swapper/107:18:581
24366991710,3cyclictest0-21swapper/111:42:211
24366991710,2cyclictest0-21swapper/109:49:431
24366991710,1cyclictest0-21swapper/108:54:041
2436699163,4cyclictest770-21irqbalance09:03:581
24366991610,2cyclictest0-21swapper/107:33:591
2436699152,3cyclictest10688-21/usr/sbin/munin07:54:081
2436699152,10cyclictest0-21swapper/108:59:041
2436699151,8cyclictest0-21swapper/108:28:591
2436699150,4cyclictest0-21swapper/108:44:521
24366991310,2cyclictest0-21swapper/108:33:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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