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2026-03-31 - 23:05
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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 Mar 31, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2013527051,8sleep00-21swapper/007:08:430
1992827057,8sleep10-21swapper/107:06:351
21032680,0sleep00-21swapper/007:44:300
164532670,0sleep00-21swapper/010:14:070
115542640,0sleep111555-21sh10:05:531
288812500,0sleep10-21swapper/112:01:091
20367993632,3cyclictest12956-21if_eth012:24:311
20367993533,1cyclictest19531-21irqstats08:29:331
20367993532,2cyclictest3653-21apache_processe07:49:281
20367993532,2cyclictest32414-21df_inode07:39:291
20367993532,2cyclictest32414-21df_inode07:39:291
20367993532,2cyclictest31269-21apache_accesses09:49:281
20367993532,2cyclictest26789-21memory07:24:321
20367993531,3cyclictest9336-21ssh10:04:021
20367993531,3cyclictest2073-21apache_processe09:09:261
20367993432,1cyclictest30833-21diskstats12:04:291
20367993432,1cyclictest22531-21diskstats07:14:301
20367993431,2cyclictest5865-21cut11:29:281
20367993431,2cyclictest3252-21users11:24:371
20367993431,2cyclictest30888-21apache_volume11:19:271
20367993431,2cyclictest25993-21ssh10:26:201
20367993431,2cyclictest20357-21ls10:19:281
20367993431,2cyclictest13306-21apache_accesses10:09:271
20367993431,2cyclictest10502-21open_files09:19:341
20367993430,3cyclictest14337-21ssh11:40:331
20367993430,2cyclictest1199-21runrttasks09:45:471
2036799334,15cyclictest0-21swapper/109:24:281
20367993331,2cyclictest0-21swapper/107:29:331
20367993331,1cyclictest15169-21apache_volume08:19:281
20367993330,2cyclictest15607-21ssh10:57:391
20367993330,2cyclictest13578-21hddtemp_smartct08:14:311
20367993330,2cyclictest0-21swapper/111:14:361
20367993230,2cyclictest23193-21smartctl08:39:311
20367993230,2cyclictest1863-21diskmemload10:15:481
20367993230,2cyclictest1863-21diskmemload09:44:091
20367993230,1cyclictest27389-21apache_volume10:29:281
20367993229,2cyclictest31145-21/usr/sbin/munin10:34:271
20367993229,2cyclictest26645-21awk11:59:161
20367993229,2cyclictest18157-21ssh11:45:591
20367993229,2cyclictest10884-21taskset08:06:361
20367993229,2cyclictest10815-21ssh11:35:311
20367993229,2cyclictest0-21swapper/112:31:151
20367993228,3cyclictest5878-21sed12:14:331
20367993228,3cyclictest29338-21ntp_states08:54:331
20367993129,1cyclictest20737-21memory11:04:321
20367993128,2cyclictest5849-21/usr/sbin/munin10:44:301
20367993128,2cyclictest19907-21if_eth212:34:291
20367993127,3cyclictest25385-21memory08:44:341
20367993126,4cyclictest17255-21cstates08:24:311
20367993121,9cyclictest0-21swapper/111:09:311
20367993114,8cyclictest20974-21switchtime11:49:361
20367993111,19cyclictest0-21swapper/112:23:311
20367993028,2cyclictest0-21swapper/110:50:511
20367993027,2cyclictest7275-21sh09:14:461
20367993026,3cyclictest5567-21apache_volume07:54:281
20367993024,5cyclictest20392-21apache_volume07:09:271
20367993024,4cyclictest20478-21apache_volume09:34:291
20367993022,5cyclictest3040-21ssh09:54:321
20367993017,8cyclictest22518-21seq08:38:001
20367992927,2cyclictest0-21swapper/107:38:221
20367992926,3cyclictest0-21swapper/112:10:561
20367992921,6cyclictest2746-21sensors07:44:351
20367992920,8cyclictest7500-21apache_volume07:59:271
20367992911,8cyclictest30560-21apache_volume08:59:261
20366992929,0cyclictest0-21swapper/009:30:580
20366992928,1cyclictest0-21swapper/010:07:560
20366992910,13cyclictest0-21swapper/008:03:580
20367992826,2cyclictest0-21swapper/109:04:371
20367992825,2cyclictest200862sleep109:33:591
20367992825,2cyclictest16861-21diskstats10:59:291
20366992828,0cyclictest0-21swapper/008:14:540
20367992725,2cyclictest0-21swapper/108:09:371
20367992720,7cyclictest0-21swapper/110:39:331
20367992719,7cyclictest0-21swapper/107:19:271
20366992727,0cyclictest0-21swapper/007:21:410
2036699271,25cyclictest0-21swapper/011:06:260
20366992710,6cyclictest0-21swapper/008:47:300
20366992610,3cyclictest0-21swapper/007:34:300
20366992610,1cyclictest0-21swapper/008:29:300
20366992510,10cyclictest0-21swapper/012:19:300
2036699246,12cyclictest0-21swapper/011:14:270
20366992410,8cyclictest0-21swapper/011:48:070
2036699240,23cyclictest0-21swapper/010:49:360
20366992317,4cyclictest1313-21munin-node07:30:110
20366992310,8cyclictest0-21swapper/012:01:220
20366992310,6cyclictest0-21swapper/009:19:270
20366992310,3cyclictest0-21swapper/009:47:440
20367992210,0cyclictest0-21swapper/108:49:301
2036699229,5cyclictest0-21swapper/008:59:340
2036699225,12cyclictest0-21swapper/008:19:320
20366992220,1cyclictest529-21ssh10:36:100
20366992210,6cyclictest0-21swapper/012:16:180
20366992210,6cyclictest0-21swapper/011:44:160
20366992210,5cyclictest0-21swapper/012:32:570
20366992210,4cyclictest0-21swapper/011:25:200
20366992210,4cyclictest0-21swapper/009:25:030
2036699218,4cyclictest636-21nscd12:29:010
2036699216,10cyclictest0-21swapper/007:14:300
2036699214,8cyclictest0-21swapper/008:09:280
2036699214,10cyclictest0-21swapper/012:34:300
20366992116,2cyclictest20364-21cyclictest11:31:160
20366992110,9cyclictest0-21swapper/009:12:590
20366992110,4cyclictest0-21swapper/012:04:240
20366992110,3cyclictest0-21swapper/007:49:280
2036699210,3cyclictest0-21swapper/010:00:380
2036699210,2cyclictest0-21swapper/009:57:070
1054722110,0sleep00-21swapper/011:34:530
287092200,0sleep00-21swapper/010:29:370
20366992014,5cyclictest0-21swapper/011:09:470
20366992010,9cyclictest0-21swapper/010:57:030
20366992010,5cyclictest0-21swapper/009:52:050
20366992010,4cyclictest0-21swapper/010:59:280
20366992010,3cyclictest0-21swapper/010:46:510
20366992010,2cyclictest0-21swapper/010:27:020
20366992010,2cyclictest0-21swapper/009:39:350
20366992010,1cyclictest100250irq/107-eth1-rx08:49:350
20366992010,1cyclictest0-21swapper/011:21:160
20366992010,0cyclictest0-21swapper/009:34:260
20366992010,0cyclictest0-21swapper/009:18:190
421421910,0sleep00-21swapper/012:12:290
2036699192,10cyclictest19960-21cron10:19:160
20366991917,1cyclictest16737-21/usr/sbin/munin10:14:300
20366991912,1cyclictest0-21swapper/007:24:350
20366991911,1cyclictest0-21swapper/007:54:300
20366991910,4cyclictest0-21swapper/010:44:160
20366991910,4cyclictest0-21swapper/008:39:320
20366991910,4cyclictest0-21swapper/008:04:330
20366991910,3cyclictest0-21swapper/007:09:280
20366991813,4cyclictest0-21swapper/007:39:340
20366991813,4cyclictest0-21swapper/007:39:340
20366991710,5cyclictest0-21swapper/008:34:350
20366991615,1cyclictest20210-21perl11:49:290
20366991610,2cyclictest0-21swapper/011:56:120
20366991610,1cyclictest0-21swapper/008:24:330
20366991510,0cyclictest0-21swapper/008:54:350
20366991410,2cyclictest0-21swapper/009:04:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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