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2026-08-16 - 06:54
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot6.osadl.org (updated Sun Aug 16, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
328321800,4sleep01979799cyclictest23:48:200
1068911010,4ptp4l401ktimersoftd/321:24:173
131472770,2sleep30-21swapper/301:37:403
194432634,10sleep00-21swapper/021:23:070
257352620,4sleep233-21ksoftirqd/221:36:342
312032610,4sleep341-21ksoftirqd/301:23:023
243332600,2sleep10-21swapper/101:49:301
171652600,2sleep217169-21sed00:01:512
287052560,2sleep30-21swapper/300:14:293
321832540,4sleep332176-21ssh01:56:513
286662520,5sleep31981599cyclictest23:41:413
1981599510,2cyclictest0-21swapper/302:31:373
195692514,35sleep20-21swapper/221:24:462
1979799504,12cyclictest22165-21latency_hist21:31:200
250402480,2sleep20-21swapper/202:22:232
1979799485,18cyclictest0-21swapper/002:15:320
1979799480,12cyclictest30367-21cpuspeed_turbos00:16:400
276482460,1sleep00-21swapper/002:26:310
243562460,2sleep20-21swapper/201:16:392
1979799432,10cyclictest12714-21diskmemload00:05:510
1979799421,9cyclictest10359-21ssh00:28:230
106891400,1ptp4l401ktimersoftd/301:18:063
1981599393,29cyclictest18992-21apt-get01:11:383
1979799390,16cyclictest28638-21switchtime00:46:520
1979799390,16cyclictest12714-21diskmemload23:51:380
1979799390,15cyclictest3242-21ssh02:33:560
106891390,1ptp4l401ktimersoftd/301:27:453
106891390,1ptp4l401ktimersoftd/300:21:573
106891390,1ptp4l401ktimersoftd/300:21:573
1979799382,6cyclictest12714-21diskmemload23:28:560
1979799381,16cyclictest14130-21/usr/sbin/munin01:06:360
1979799380,8cyclictest1428-21diskstats01:26:400
106891380,1ptp4l401ktimersoftd/323:38:073
106891380,1ptp4l401ktimersoftd/323:31:553
106891380,1ptp4l401ktimersoftd/322:49:273
106891380,1ptp4l401ktimersoftd/302:30:553
106891380,1ptp4l401ktimersoftd/302:22:393
106891380,1ptp4l401ktimersoftd/302:12:063
106891380,1ptp4l401ktimersoftd/301:52:423
106891380,1ptp4l401ktimersoftd/301:50:293
106891380,1ptp4l401ktimersoftd/301:43:443
106891380,1ptp4l401ktimersoftd/301:33:213
106891380,1ptp4l401ktimersoftd/300:38:583
106891380,1ptp4l401ktimersoftd/300:08:163
106891380,1ptp4l401ktimersoftd/300:04:143
1981599370,3cyclictest15582-21/usr/sbin/munin22:21:403
1979799371,8cyclictest12290-21diskstats22:16:370
1979799370,9cyclictest21858-21snmp_o5powerctl00:06:470
1979799370,17cyclictest26724-21munin-run00:46:240
1979799370,15cyclictest27321-21snmp_o5powerctl01:51:510
106891370,1ptp4l401ktimersoftd/323:58:443
106891370,1ptp4l401ktimersoftd/302:50:183
106891370,1ptp4l401ktimersoftd/302:46:103
106891370,1ptp4l401ktimersoftd/302:41:263
106891370,1ptp4l401ktimersoftd/302:07:353
106891370,1ptp4l401ktimersoftd/302:07:353
106891370,1ptp4l401ktimersoftd/302:05:453
106891370,1ptp4l401ktimersoftd/301:07:003
106891370,1ptp4l401ktimersoftd/300:57:063
106891370,1ptp4l401ktimersoftd/300:52:513
106891370,1ptp4l401ktimersoftd/300:49:483
106891370,1ptp4l401ktimersoftd/300:43:133
106891370,1ptp4l401ktimersoftd/300:20:453
1981599363,25cyclictest3532-21apt-get23:06:323
1981599362,27cyclictest7645-21apt-get00:26:373
19815993615,18cyclictest20392-21tr22:31:423
1981599360,2cyclictest0-21swapper/321:52:073
1979799362,6cyclictest0-21swapper/002:07:210
1979799362,6cyclictest0-21swapper/002:07:210
106891360,1ptp4l401ktimersoftd/323:23:353
106891360,1ptp4l401ktimersoftd/321:42:593
106891360,1ptp4l401ktimersoftd/300:33:043
106891360,0ptp4l401ktimersoftd/323:27:033
106891360,0ptp4l401ktimersoftd/322:06:163
106891360,0ptp4l401ktimersoftd/301:04:133
19815993519,13cyclictest41-21ksoftirqd/322:12:123
1981599350,4cyclictest2741-21sed23:01:523
1979799350,16cyclictest12714-21diskmemload02:51:380
106891350,1ptp4l401ktimersoftd/302:54:243
106891350,1ptp4l401ktimersoftd/302:18:023
1981599345,25cyclictest16893-21/usr/sbin/munin22:26:493
1981599342,26cyclictest0-21swapper/322:16:343
1981599341,26cyclictest24105-21apt-get22:41:373
1981599340,2cyclictest0-21swapper/321:46:433
73752330,1sleep10-21swapper/100:26:231
73752330,1sleep10-21swapper/100:26:231
19815993314,16cyclictest22171-21cut21:31:203
19815993313,16cyclictest29727-21uname22:51:423
1981599331,29cyclictest854-21/usr/sbin/munin23:46:373
1980199333,3cyclictest121rcu_preempt23:26:441
1979799330,14cyclictest5169-21diskstats22:01:360
1979799330,14cyclictest22736-21users21:31:230
1981599326,22cyclictest8127-21latency_hist23:16:223
1981599325,23cyclictest2564-21cpu21:56:343
19815993226,3cyclictest23796-21apt22:41:213
19815993226,3cyclictest23796-21apt22:41:213
1981599321,24cyclictest31220-21apt-get22:56:323
19808993222,6cyclictest12714-21diskmemload00:11:342
1981599317,20cyclictest22834-21irqrtprio21:31:233
1981599310,2cyclictest0-21swapper/323:16:373
1981599306,20cyclictest5930-21tail23:51:413
1981599303,22cyclictest7277-21apt-get22:06:333
1980199301,22cyclictest0-21swapper/123:36:351
1979799301,16cyclictest18738-21/usr/sbin/munin23:31:410
1979799301,15cyclictest11132-21hddtemp_smartct23:21:380
1979799300,18cyclictest7446-21python01:31:510
1980899295,15cyclictest8039-21ssh02:06:392
1980899295,15cyclictest8039-21ssh02:06:392
19808992923,3cyclictest33-21ksoftirqd/201:51:382
1979799292,16cyclictest29142-21ssh00:15:130
1979799291,5cyclictest101ktimersoftd/023:38:310
1979799291,14cyclictest12714-21diskmemload01:01:380
106891290,1ptp4l401ktimersoftd/321:36:333
327542280,2sleep00-21swapper/001:57:120
1979799282,10cyclictest19005-21ssh01:11:390
1979799280,14cyclictest17746-21diskstats00:36:390
182862285,10sleep10-21swapper/121:21:381
19808992722,3cyclictest33-21ksoftirqd/201:46:392
19808992721,3cyclictest33-21ksoftirqd/223:55:172
19808992720,4cyclictest33-21ksoftirqd/200:21:102
1980199272,14cyclictest64-21kswapd002:01:371
19797992720,4cyclictest9-21ksoftirqd/023:08:220
1979799271,5cyclictest101ktimersoftd/023:43:030
1979799270,7cyclictest101ktimersoftd/001:50:260
1979799270,6cyclictest101ktimersoftd/001:25:180
1979799270,16cyclictest12714-21diskmemload02:37:170
19808992619,4cyclictest33-21ksoftirqd/223:12:092
19808992617,7cyclictest4878-21snmp_o5powerctl23:06:472
19801992619,4cyclictest25-21ksoftirqd/122:25:231
19797992621,3cyclictest9-21ksoftirqd/000:59:590
1979799260,8cyclictest12356-21ssh00:31:240
1979799260,14cyclictest15033-21ssh02:46:410
19808992520,3cyclictest33-21ksoftirqd/222:52:242
19808992519,3cyclictest33-21ksoftirqd/222:21:542
19808992518,4cyclictest33-21ksoftirqd/202:42:072
19801992518,4cyclictest25-21ksoftirqd/122:01:261
1979799255,5cyclictest0-21swapper/023:11:380
19797992519,4cyclictest9-21ksoftirqd/022:40:110
19797992519,4cyclictest9-21ksoftirqd/022:40:110
19797992513,6cyclictest3169-21apt-get02:01:370
1979799250,7cyclictest101ktimersoftd/001:17:510
1979799250,4cyclictest101ktimersoftd/002:42:080
1979799250,13cyclictest11820-21ssh01:36:450
952222417,3sleep233-21ksoftirqd/202:41:032
1980899245,17cyclictest12714-21diskmemload02:20:052
19808992419,3cyclictest33-21ksoftirqd/221:57:342
19808992417,4cyclictest3210-21gltestperf00:21:392
19808992417,4cyclictest3210-21gltestperf00:21:392
1980899240,10cyclictest12051-21snmp_o5powerctl23:56:472
1980199241,8cyclictest121rcu_preempt01:57:441
19801992418,3cyclictest6958-21snmp_o5powerctl23:51:511
19801992418,3cyclictest25-21ksoftirqd/123:06:211
19801992417,4cyclictest25-21ksoftirqd/122:32:261
19801992417,4cyclictest25-21ksoftirqd/121:34:571
19801992417,4cyclictest11906-21ssh02:10:281
19801992417,4cyclictest11906-21ssh02:10:281
1980199241,6cyclictest21297-21snmp_o5powerctl02:51:511
19797992418,3cyclictest9-21ksoftirqd/022:48:550
19797992418,3cyclictest9-21ksoftirqd/021:58:040
19797992417,4cyclictest9-21ksoftirqd/022:54:370
1979799240,7cyclictest101ktimersoftd/023:21:140
1979799240,22cyclictest101ktimersoftd/000:54:490
1979799240,20cyclictest15729-21phc2sys22:21:410
1229122417,3sleep233-21ksoftirqd/222:16:382
1980899239,11cyclictest18477-21tail23:31:382
1980899238,3cyclictest321ktimersoftd/201:42:192
1980899233,13cyclictest64-21kswapd001:06:362
19808992317,4cyclictest33-21ksoftirqd/221:27:232
19808992317,3cyclictest33-21ksoftirqd/223:03:042
19808992316,4cyclictest33-21ksoftirqd/223:26:102
19808992316,4cyclictest33-21ksoftirqd/222:32:352
19808992316,4cyclictest33-21ksoftirqd/202:14:372
19808992316,4cyclictest11580-21irqrtprio01:36:442
1980899231,19cyclictest12714-21diskmemload01:31:512
19808992310,7cyclictest0-21swapper/200:31:352
1980199232,12cyclictest1055-21runrttasks02:41:381
19801992318,3cyclictest25-21ksoftirqd/100:16:561
19801992317,4cyclictest25-21ksoftirqd/121:44:401
19801992317,4cyclictest25-21ksoftirqd/102:13:391
19801992317,3cyclictest25-21ksoftirqd/122:40:191
19801992317,3cyclictest25-21ksoftirqd/122:40:191
19801992317,3cyclictest25-21ksoftirqd/121:36:551
19801992316,4cyclictest25-21ksoftirqd/122:52:531
19801992316,4cyclictest25-21ksoftirqd/122:51:161
19801992316,4cyclictest25-21ksoftirqd/122:20:451
1980199231,19cyclictest3486-21ssh00:55:311
1979799234,7cyclictest9-21ksoftirqd/021:51:450
1979799233,7cyclictest0-21swapper/002:16:520
1979799233,6cyclictest17224-21ssh01:41:470
1979799233,6cyclictest0-21swapper/021:41:450
19797992317,3cyclictest9-21ksoftirqd/022:10:040
19797992316,4cyclictest9-21ksoftirqd/022:31:080
19797992316,4cyclictest9-21ksoftirqd/021:37:290
19797992314,6cyclictest2656-21/usr/sbin/munin00:21:460
19797992314,6cyclictest2656-21/usr/sbin/munin00:21:460
19808992216,4cyclictest33-21ksoftirqd/222:03:162
19808992216,3cyclictest33-21ksoftirqd/222:41:042
19808992216,3cyclictest33-21ksoftirqd/222:41:042
19808992216,3cyclictest33-21ksoftirqd/221:51:592
19808992215,4cyclictest7607-21sh02:06:252
19808992215,4cyclictest33-21ksoftirqd/222:14:032
19808992215,4cyclictest33-21ksoftirqd/221:48:592
19808992215,4cyclictest33-21ksoftirqd/201:26:272
19808992215,4cyclictest32421-21cut02:31:272
1980899221,4cyclictest22164-21ssh00:41:242
19808992214,4cyclictest27607-21grep00:46:402
19808992212,5cyclictest379-21sh23:46:272
1980899221,18cyclictest5866-21snmp_o5powerctl00:56:492
19801992217,3cyclictest25-21ksoftirqd/122:00:131
19801992217,3cyclictest25-21ksoftirqd/121:52:471
19801992217,3cyclictest25-21ksoftirqd/101:39:521
19801992216,3cyclictest25-21ksoftirqd/121:28:011
19801992215,4cyclictest25-21ksoftirqd/122:28:241
19801992215,4cyclictest25-21ksoftirqd/102:48:481
19801992215,4cyclictest21622-21phc2sys00:06:441
19801992215,4cyclictest12724-21sleep23:26:221
1980199220,10cyclictest286672irqrtprio23:41:411
1979799224,14cyclictest847-21latency_hist23:01:220
19797992217,3cyclictest9-21ksoftirqd/022:11:540
266692210,4sleep1241ktimersoftd/102:25:121
1980899218,3cyclictest31919-21cat00:51:372
1980899212,16cyclictest8592-21sort23:16:382
1980899212,16cyclictest28381-21sed23:41:392
19808992115,4cyclictest33-21ksoftirqd/223:00:492
19808992114,5cyclictest13053-21/usr/sbin/munin23:26:412
19808992114,4cyclictest33-21ksoftirqd/202:51:302
19808992114,4cyclictest23331-21df21:31:342
19801992116,3cyclictest7574-21tune2fs22:06:361
19801992116,3cyclictest25-21ksoftirqd/100:00:101
19801992115,3cyclictest5212-21ssh01:30:451
19801992115,3cyclictest25-21ksoftirqd/123:11:511
19801992115,3cyclictest13591-21sh01:06:121
19801992114,4cyclictest5791-21latency_hist23:11:221
19801992114,4cyclictest15227-21missed_timers01:06:451
1980199211,3cyclictest27774-21ssh01:52:021
1980199211,3cyclictest0-21swapper/100:29:081
19801992113,4cyclictest5255-21/usr/sbin/munin02:36:441
1980199211,18cyclictest0-21swapper/100:42:121
1980199211,17cyclictest9139-21ssh01:34:101
1980199211,17cyclictest12714-21diskmemload23:48:571
1979799216,11cyclictest0-21swapper/021:46:330
1979799213,6cyclictest0-21swapper/002:21:440
19797992116,3cyclictest9-21ksoftirqd/022:42:100
1979799210,5cyclictest101ktimersoftd/023:02:000
23422200,7sleep20-21swapper/202:32:242
19808992015,3cyclictest33-21ksoftirqd/222:28:172
19808992014,3cyclictest33-21ksoftirqd/201:03:012
19808992014,3cyclictest18911-21/usr/sbin/munin01:11:462
19808992014,3cyclictest17627-21sh02:48:182
1980899201,3cyclictest22840-21ssh00:07:522
19808992013,4cyclictest31049-21sh01:22:462
19808992013,4cyclictest25449-21snmp_o5powerctl22:41:512
19808992013,4cyclictest17431-21cat00:36:362
19808992013,4cyclictest10157-21sh00:28:022
1980899201,15cyclictest7381-21tr22:06:342
1980899201,15cyclictest0-21swapper/222:46:342
1980899200,18cyclictest0-21swapper/223:36:352
1980899200,18cyclictest0-21swapper/201:56:582
19801992015,3cyclictest30919-21ssh00:50:161
19801992015,3cyclictest25-21ksoftirqd/122:11:571
19801992015,3cyclictest25-21ksoftirqd/121:47:231
19801992015,3cyclictest20149-21ssh23:32:191
1980199201,4cyclictest22736-21ssh01:15:131
19801992014,3cyclictest6396-21ssh00:57:071
19801992013,4cyclictest31510-21fschecks_count22:56:361
19801992013,4cyclictest17262-21sh00:36:241
19801992013,4cyclictest13954-21sensors_temp00:31:471
19801992013,4cyclictest12714-21diskmemload02:27:291
19801992012,5cyclictest12714-21diskmemload01:23:351
19801992012,5cyclictest1055-21runrttasks01:17:231
1980199200,18cyclictest0-21swapper/102:19:391
1979799203,3cyclictest9-21ksoftirqd/000:00:040
19797992011,6cyclictest19601-21entropy22:31:360
19808991912,4cyclictest29529-21uptime21:41:492
19801991914,3cyclictest17880-21ssh01:42:061
19801991913,3cyclictest9879-21unixbench_multi23:16:521
19801991913,3cyclictest25263-21acpi00:11:341
19801991913,3cyclictest24269-21cat22:41:381
19801991912,4cyclictest681-21gltestperf02:31:441
1980199191,16cyclictest0-21swapper/100:01:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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