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2026-09-02 - 17:04
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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 rack1slot1.osadl.org (updated Wed Sep 02, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1993425090,7sleep00-21swapper/007:05:220
204112232160,58sleep20-21swapper/207:06:172
206932209158,25sleep30-21swapper/307:09:573
203552198159,26sleep10-21swapper/107:05:321
293442730,0sleep10-21swapper/111:50:011
214532690,0sleep10-21swapper/110:05:151
44732680,0sleep00-21swapper/012:00:130
114432540,0sleep10-21swapper/110:37:071
75612510,1sleep22078599cyclictest10:30:472
86032200,1sleep08608-21cpuspeed_turbos07:50:130
31132190,0sleep00-21swapper/010:25:160
144132190,0sleep30-21swapper/311:28:043
4242130,0sleep20-21swapper/207:30:212
2077399132,5cyclictest19927-21perf08:15:000
232402120,0sleep30-21swapper/310:55:033
2077399123,4cyclictest1644-21/usr/sbin/munin08:45:000
94592100,0sleep00-21swapper/012:05:510
302912100,0sleep013853-21diskmemload10:18:250
2078599109,1cyclictest28-21ksoftirqd/210:29:552
2078599108,1cyclictest28-21ksoftirqd/212:13:042
2078599100,1cyclictest17565-21/usr/sbin/munin09:15:142
2078599100,0cyclictest0-21swapper/210:42:492
20781991010,0cyclictest0-21swapper/111:30:111
207869992,4cyclictest240-21systemd-journal09:49:543
207859999,0cyclictest0-21swapper/208:45:152
207859997,1cyclictest28-21ksoftirqd/211:35:002
207819990,5cyclictest0-21swapper/108:05:121
207739993,5cyclictest9362-21/usr/sbin/munin09:00:210
207739993,3cyclictest1040-21perf07:35:000
207869986,1cyclictest11301-21snmpd08:12:543
207869986,1cyclictest11301-21snmpd07:56:263
207869986,1cyclictest11301-21snmpd07:56:263
207869986,1cyclictest11301-21snmpd07:46:223
207869986,1cyclictest11301-21snmpd07:37:223
207869982,5cyclictest561-21nscd12:26:003
207869980,1cyclictest0-21swapper/312:34:163
207859986,1cyclictest61650irq/122-eno111:12:032
207859986,1cyclictest61650irq/122-eno110:49:112
207859986,1cyclictest61650irq/122-eno109:55:162
207859986,1cyclictest61650irq/122-eno109:50:212
207859986,1cyclictest61650irq/122-eno109:38:122
207859986,1cyclictest28-21ksoftirqd/211:03:072
207859986,1cyclictest16201-21cat11:30:152
207859986,1cyclictest11301-21snmpd09:12:442
207859984,2cyclictest240-21systemd-journal09:24:552
207859984,2cyclictest13853-21diskmemload10:55:132
207859984,1cyclictest240-21systemd-journal12:07:582
207859984,1cyclictest13853-21diskmemload10:00:112
207859983,2cyclictest240-21systemd-journal07:55:012
207859983,2cyclictest240-21systemd-journal07:55:012
207739983,4cyclictest0-21swapper/011:40:120
207739983,3cyclictest20731-21apt-get07:10:010
207739983,1cyclictest22127-21sh12:25:140
207739982,5cyclictest12327-21diskstats11:25:140
207739981,3cyclictest17332-21grep09:15:000
207739980,4cyclictest8121-21perf07:50:000
207739980,1cyclictest240-21systemd-journal10:15:000
207739980,1cyclictest11702-21perl12:10:140
207739980,1cyclictest1051-21munin-run11:10:000
7569270,0sleep10-21swapper/109:45:171
207869976,1cyclictest10034-21cat10:35:153
207869975,1cyclictest14541-21ssh10:40:463
207869975,1cyclictest11301-21snmpd09:55:063
207869975,1cyclictest11301-21snmpd09:50:303
207869975,1cyclictest11301-21snmpd09:15:023
207869975,1cyclictest11301-21snmpd09:00:583
207869975,1cyclictest11301-21snmpd08:53:583
207869973,2cyclictest240-21systemd-journal11:09:553
207869970,3cyclictest0-21swapper/309:30:273
207869970,2cyclictest0-21swapper/312:07:563
207869970,0cyclictest0-21swapper/311:16:003
207859976,1cyclictest61650irq/122-eno112:25:142
207859976,1cyclictest61650irq/122-eno112:02:382
207859976,1cyclictest61650irq/122-eno111:55:112
207859976,1cyclictest61650irq/122-eno109:48:082
207859976,1cyclictest61650irq/122-eno109:30:172
207859976,1cyclictest61650irq/122-eno107:40:122
207859976,1cyclictest11301-21snmpd12:33:192
207859976,0cyclictest0-21swapper/211:45:202
207859975,1cyclictest61650irq/122-eno112:18:202
207859975,1cyclictest61650irq/122-eno109:40:102
207859975,1cyclictest61650irq/122-eno109:05:142
207859975,1cyclictest61650irq/122-eno108:44:592
207859975,1cyclictest61650irq/122-eno108:20:202
207859975,1cyclictest61650irq/122-eno108:10:152
207859975,1cyclictest28-21ksoftirqd/212:20:202
207859975,0cyclictest0-21swapper/211:44:572
207859973,3cyclictest0-21swapper/211:50:172
207859973,1cyclictest240-21systemd-journal10:39:592
207859972,2cyclictest25019-21telnet09:25:132
207859972,2cyclictest12730-21runrttasks11:25:162
207859971,5cyclictest0-21swapper/208:50:042
207859970,6cyclictest29749-21grep12:35:192
207859970,6cyclictest29749-21grep12:35:182
207859970,6cyclictest22547-21ssh10:05:492
207859970,6cyclictest0-21swapper/210:19:102
207859970,2cyclictest0-21swapper/208:35:132
207859970,1cyclictest0-21swapper/207:19:042
207819971,6cyclictest0-21swapper/108:52:071
207819971,4cyclictest0-21swapper/111:35:531
207819971,3cyclictest0-21swapper/109:05:101
207819971,3cyclictest0-21swapper/107:25:001
207819970,6cyclictest0-21swapper/112:23:041
207819970,6cyclictest0-21swapper/108:30:151
207819970,4cyclictest0-21swapper/110:50:121
207819970,4cyclictest0-21swapper/110:25:071
207819970,3cyclictest0-21swapper/112:00:211
207819970,3cyclictest0-21swapper/111:24:311
207819970,3cyclictest0-21swapper/110:55:031
207819970,3cyclictest0-21swapper/108:45:111
207819970,2cyclictest0-21swapper/110:21:031
207739976,1cyclictest8783-21ssh09:46:370
207739976,1cyclictest11301-21snmpd08:33:470
207739976,1cyclictest11301-21snmpd08:23:480
207739975,1cyclictest9-21ksoftirqd/007:39:550
207739975,1cyclictest693-21runrttasks11:04:230
207739975,1cyclictest0-21swapper/011:55:130
207739974,0cyclictest0-21swapper/011:20:130
207739973,1cyclictest240-21systemd-journal08:10:010
207739971,6cyclictest15418-21ssh09:55:260
207739971,5cyclictest29465-21/usr/sbin/munin11:50:110
207739970,6cyclictest9268-21aten_r1power_vo10:35:120
207739970,6cyclictest798-21ssh09:35:190
207739970,6cyclictest6681-21ssh11:15:350
207739970,6cyclictest4768-21cstates08:50:130
207739970,6cyclictest31086-21/usr/sbin/munin10:20:220
207739970,6cyclictest29376-21grep12:35:160
207739970,6cyclictest29376-21grep12:35:150
207739970,6cyclictest29085-21ssh11:49:400
207739970,6cyclictest23256-21ssh10:55:070
207739970,6cyclictest20082-21ssh09:17:270
207739970,6cyclictest19108-21telnet11:35:120
207739970,6cyclictest16227-21telnet10:45:120
207739970,6cyclictest13853-21diskmemload11:31:390
207739970,6cyclictest13835-21cron09:10:010
207739970,6cyclictest0-21swapper/010:30:030
207739970,6cyclictest0-21swapper/010:04:350
207739970,1cyclictest5617-21ssh09:42:390
207739970,1cyclictest31129-21ssh09:32:530
207739970,1cyclictest27128-21ssh12:31:380
207739970,1cyclictest22906-21sed10:55:000
207739970,1cyclictest20582-21ssh10:05:060
207739970,1cyclictest14609-21ssh10:41:020
207739970,1cyclictest12942-21ssh09:53:460
207739970,1cyclictest0-21swapper/011:10:170
207739970,1cyclictest0-21swapper/009:20:140
22180260,0sleep30-21swapper/307:10:163
207869965,1cyclictest514-21ssh10:20:403
207869965,1cyclictest35-21ksoftirqd/309:07:503
207869965,1cyclictest32658-21ssh11:54:583
207869965,1cyclictest29972-21ssh11:04:593
207869965,1cyclictest26073-21ntpq09:25:183
207869965,1cyclictest22173-21cat09:20:163
207869965,1cyclictest16214-21ssh09:11:473
207869965,1cyclictest16059-21ssh10:45:043
207869965,1cyclictest11891-21cat12:10:153
207869965,1cyclictest11301-21snmpd07:18:393
207869965,0cyclictest13853-21diskmemload09:44:333
207869964,1cyclictest30121-21ntp_states07:25:173
207869964,1cyclictest21357-21uptime10:50:223
207869964,1cyclictest13955-21cat08:00:153
207869964,1cyclictest11301-21snmpd07:31:193
207869963,2cyclictest2351-21cpuspeed_turbos08:45:123
207869963,2cyclictest19281-21grep11:35:123
207869963,1cyclictest13853-21diskmemload10:10:103
207869961,1cyclictest8361-21aten2.4-expect07:50:123
207869960,6cyclictest0-21swapper/309:35:163
207869960,4cyclictest0-21swapper/312:35:043
207869960,4cyclictest0-21swapper/312:35:033
207869960,4cyclictest0-21swapper/311:30:003
207869960,3cyclictest0-21swapper/311:40:143
207869960,2cyclictest0-21swapper/312:18:163
207869960,2cyclictest0-21swapper/310:30:443
207869960,2cyclictest0-21swapper/310:15:123
207869960,1cyclictest0-21swapper/311:58:263
207869960,1cyclictest0-21swapper/310:05:443
207869960,0cyclictest0-21swapper/312:21:433
207869960,0cyclictest0-21swapper/310:25:123
207859966,0cyclictest61650irq/122-eno111:15:182
207859966,0cyclictest61650irq/122-eno111:05:142
207859966,0cyclictest61650irq/122-eno110:50:172
207859966,0cyclictest61650irq/122-eno110:10:012
207859966,0cyclictest61650irq/122-eno108:05:212
207859966,0cyclictest61650irq/122-eno108:00:122
207859966,0cyclictest61650irq/122-eno107:45:122
207859966,0cyclictest61650irq/122-eno107:25:532
207859965,1cyclictest8285-21ssh11:20:052
207859965,1cyclictest61650irq/122-eno108:25:212
207859965,1cyclictest27761-21ntpq07:20:182
207859964,1cyclictest61650irq/122-eno109:00:142
207859964,1cyclictest61650irq/122-eno107:50:132
207859964,1cyclictest31967-21ssh10:20:152
207859964,1cyclictest28-21ksoftirqd/208:18:152
207859964,1cyclictest11301-21snmpd08:57:222
207859962,1cyclictest2410-21ntp_states07:35:182
207859961,1cyclictest0-21swapper/208:30:132
207859960,6cyclictest0-21swapper/207:10:162
207819965,1cyclictest0-21swapper/111:15:161
207819961,5cyclictest0-21swapper/108:01:591
207819961,2cyclictest0-21swapper/109:20:171
207819960,6cyclictest0-21swapper/111:02:081
207819960,6cyclictest0-21swapper/110:32:501
207819960,6cyclictest0-21swapper/109:04:431
207819960,6cyclictest0-21swapper/108:37:391
207819960,5cyclictest0-21swapper/111:10:021
207819960,5cyclictest0-21swapper/109:40:161
207819960,5cyclictest0-21swapper/108:16:271
207819960,4cyclictest0-21swapper/110:16:411
207819960,4cyclictest0-21swapper/109:30:131
207819960,3cyclictest0-21swapper/112:34:511
207819960,3cyclictest0-21swapper/112:16:581
207819960,3cyclictest0-21swapper/110:00:111
207819960,3cyclictest0-21swapper/109:15:101
207819960,3cyclictest0-21swapper/108:20:161
207819960,2cyclictest0-21swapper/112:40:001
207819960,2cyclictest0-21swapper/112:40:001
207819960,2cyclictest0-21swapper/112:05:061
207819960,2cyclictest0-21swapper/109:27:431
207819960,2cyclictest0-21swapper/109:14:591
207819960,2cyclictest0-21swapper/108:45:001
207819960,2cyclictest0-21swapper/108:10:121
207819960,1cyclictest0-21swapper/110:12:591
207819960,1cyclictest0-21swapper/109:55:161
207819960,1cyclictest0-21swapper/107:45:351
207739965,1cyclictest11301-21snmpd08:55:070
207739964,1cyclictest13062-21/usr/sbin/munin08:00:120
207739963,1cyclictest548-21systemd-logind08:25:210
207739962,1cyclictest2078-21/usr/sbin/munin08:45:170
207739960,6cyclictest18799-21ssh12:20:150
207739960,5cyclictest25404-21df_inode09:25:140
207739960,2cyclictest0-21swapper/007:40:140
207739960,0cyclictest0-21swapper/012:15:140
207739960,0cyclictest0-21swapper/008:39:340
207739960,0cyclictest0-21swapper/007:55:120
207739960,0cyclictest0-21swapper/007:55:120
207739960,0cyclictest0-21swapper/007:26:110
11330260,0sleep30-21swapper/311:24:223
207869954,1cyclictest16798-21systemctl08:05:193
207869953,1cyclictest35-21ksoftirqd/308:30:003
207869953,1cyclictest30975-21sensors_temp08:35:213
207869953,1cyclictest28313-21ssh11:47:103
207869953,1cyclictest11301-21snmpd07:21:073
207869952,2cyclictest693-21runrttasks08:59:413
207869952,1cyclictest2523-21ntp_states11:10:183
207869952,1cyclictest240-21systemd-journal08:15:003
207869951,3cyclictest428-21latency08:40:153
207869951,2cyclictest693-21runrttasks08:20:013
207869951,1cyclictest17112-21apt-get10:00:113
207869950,3cyclictest3627-21apt-get07:40:123
207869950,1cyclictest0-21swapper/312:02:453
207819953,1cyclictest29602-21chrt11:50:131
207819950,5cyclictest0-21swapper/112:12:371
207819950,5cyclictest0-21swapper/110:44:031
207819950,5cyclictest0-21swapper/109:36:351
207819950,5cyclictest0-21swapper/108:25:171
207819950,5cyclictest0-21swapper/107:41:441
207819950,4cyclictest0-21swapper/111:40:121
207819950,4cyclictest0-21swapper/109:52:311
207819950,3cyclictest0-21swapper/112:25:561
207819950,3cyclictest0-21swapper/111:55:191
207819950,2cyclictest0-21swapper/111:27:401
207819950,2cyclictest0-21swapper/111:08:471
207819950,2cyclictest0-21swapper/108:55:011
207739954,1cyclictest20123-21/usr/sbin/munin08:15:160
207739950,5cyclictest0-21swapper/007:21:230
207739950,5cyclictest0-21swapper/007:15:000
207869940,3cyclictest0-21swapper/308:30:123
207819944,0cyclictest0-21swapper/107:15:111
207819940,4cyclictest0-21swapper/107:36:041
207819940,4cyclictest0-21swapper/107:33:461
207819940,4cyclictest0-21swapper/107:11:221
207819940,1cyclictest0-21swapper/107:50:191
207819940,0cyclictest0-21swapper/110:45:311
207819940,0cyclictest0-21swapper/107:55:201
207819940,0cyclictest0-21swapper/107:55:201
207819931,1cyclictest0-21swapper/107:25:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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