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2026-09-08 - 04:57
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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 376 highest latencies:
System rackbslot6.osadl.org (updated Tue Sep 08, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
576921710,5sleep31663099cyclictest02:50:233
2580121550,4sleep01661399cyclictest00:26:300
3007121500,5sleep01661399cyclictest00:30:240
106891980,4ptp4l401ktimersoftd/321:38:463
106891950,12ptp4l401ktimersoftd/321:49:423
106891750,1ptp4l401ktimersoftd/300:35:523
68952720,2sleep00-21swapper/023:29:250
131432680,1sleep20-21swapper/202:59:132
143762654,10sleep00-21swapper/021:34:050
16624996452,7cyclictest33-21ksoftirqd/201:19:232
106891640,1ptp4l401ktimersoftd/300:05:123
249012600,4sleep11661799cyclictest00:24:591
257192580,3sleep010382-21diskmemload02:39:080
106891580,1ptp4l401ktimersoftd/302:33:213
106891560,1ptp4l401ktimersoftd/323:24:293
162422544,37sleep10-21swapper/121:35:321
106891530,1ptp4l401ktimersoftd/323:33:543
176932500,1sleep30-21swapper/303:04:003
16624995039,5cyclictest33-21ksoftirqd/200:34:192
16624994937,6cyclictest33-21ksoftirqd/202:09:202
239842470,2sleep30-21swapper/302:36:143
106891470,1ptp4l2212-21kworker/3:101:15:163
16624994337,3cyclictest33-21ksoftirqd/201:44:192
16624994335,4cyclictest33-21ksoftirqd/221:59:062
16624994319,7cyclictest33-21ksoftirqd/200:09:242
106891430,1ptp4l401ktimersoftd/322:53:563
106891430,1ptp4l401ktimersoftd/302:14:063
16624994223,10cyclictest33-21ksoftirqd/200:44:222
16624994129,5cyclictest33-21ksoftirqd/201:49:202
16624994027,3cyclictest33-21ksoftirqd/223:49:292
16624994023,4cyclictest33-21ksoftirqd/222:04:202
16624994016,4cyclictest33-21ksoftirqd/221:54:022
1662499390,3cyclictest121rcu_preempt01:14:352
106891390,1ptp4l401ktimersoftd/302:29:053
106891390,1ptp4l401ktimersoftd/302:23:563
106891390,1ptp4l401ktimersoftd/301:33:013
106891390,1ptp4l401ktimersoftd/300:57:203
106891390,1ptp4l401ktimersoftd/300:31:573
106891390,1ptp4l401ktimersoftd/300:21:013
106891390,1ptp4l401ktimersoftd/300:10:133
16624993820,3cyclictest33-21ksoftirqd/222:14:202
106891380,1ptp4l401ktimersoftd/323:42:013
106891380,1ptp4l401ktimersoftd/301:47:403
106891380,1ptp4l401ktimersoftd/301:34:453
106891380,1ptp4l401ktimersoftd/301:09:093
106891380,1ptp4l401ktimersoftd/300:40:443
106891380,1ptp4l401ktimersoftd/300:16:433
106891380,1ptp4l401ktimersoftd/300:02:153
16624993725,6cyclictest33-21ksoftirqd/223:19:142
1662499372,3cyclictest33-21ksoftirqd/201:04:062
1662499372,3cyclictest33-21ksoftirqd/201:04:062
16624993720,14cyclictest33-21ksoftirqd/223:09:262
16624993720,14cyclictest33-21ksoftirqd/223:09:262
16624993713,4cyclictest33-21ksoftirqd/223:14:232
106891370,1ptp4l401ktimersoftd/323:57:423
106891370,1ptp4l401ktimersoftd/323:49:393
106891370,1ptp4l401ktimersoftd/323:47:083
106891370,1ptp4l401ktimersoftd/302:59:073
106891370,1ptp4l401ktimersoftd/302:47:513
106891370,1ptp4l401ktimersoftd/302:42:273
106891370,1ptp4l401ktimersoftd/302:42:273
106891370,1ptp4l401ktimersoftd/302:06:453
106891370,1ptp4l401ktimersoftd/301:41:013
106891370,1ptp4l401ktimersoftd/301:21:463
106891370,1ptp4l401ktimersoftd/301:08:013
106891370,1ptp4l401ktimersoftd/300:49:133
106891370,0ptp4l401ktimersoftd/301:57:243
198582360,2sleep01661399cyclictest00:19:440
1662499364,3cyclictest121rcu_preempt01:54:122
16624993630,3cyclictest33-21ksoftirqd/222:34:072
16624993630,3cyclictest33-21ksoftirqd/200:39:192
16624993619,6cyclictest33-21ksoftirqd/200:19:152
16624993611,4cyclictest33-21ksoftirqd/222:59:302
106891360,1ptp4l401ktimersoftd/321:39:343
106891360,1ptp4l401ktimersoftd/303:05:383
106891360,1ptp4l401ktimersoftd/302:15:163
106891360,1ptp4l401ktimersoftd/302:01:183
106891360,1ptp4l401ktimersoftd/301:01:293
106891360,1ptp4l401ktimersoftd/301:01:293
106891360,1ptp4l401ktimersoftd/300:28:153
16624993529,3cyclictest33-21ksoftirqd/202:09:082
1662499352,3cyclictest121rcu_preempt23:29:242
16624993523,3cyclictest33-21ksoftirqd/223:39:182
16624993522,3cyclictest33-21ksoftirqd/202:59:092
16624993522,3cyclictest33-21ksoftirqd/202:29:232
16624993522,10cyclictest33-21ksoftirqd/200:29:202
16624993520,5cyclictest33-21ksoftirqd/222:24:032
16624993512,7cyclictest33-21ksoftirqd/201:59:252
16624993511,4cyclictest33-21ksoftirqd/200:56:052
16624993510,4cyclictest33-21ksoftirqd/203:04:282
1662499350,16cyclictest33-21ksoftirqd/223:47:522
106891350,2ptp4l2212-21kworker/3:122:34:493
106891350,1ptp4l401ktimersoftd/301:25:063
16624993429,3cyclictest33-21ksoftirqd/222:59:032
16624993428,3cyclictest33-21ksoftirqd/223:29:042
16624993428,3cyclictest33-21ksoftirqd/202:29:082
16624993427,4cyclictest33-21ksoftirqd/202:44:252
16624993422,3cyclictest33-21ksoftirqd/200:04:272
16624993422,10cyclictest33-21ksoftirqd/201:04:392
16624993421,4cyclictest33-21ksoftirqd/223:59:052
16624993420,3cyclictest33-21ksoftirqd/202:39:352
16624993420,3cyclictest33-21ksoftirqd/202:39:352
16624993415,10cyclictest33-21ksoftirqd/201:43:132
16624993412,8cyclictest33-21ksoftirqd/201:34:412
16624993411,4cyclictest33-21ksoftirqd/221:54:242
1452913427,3phc2sys41-21ksoftirqd/301:53:343
106891340,0ptp4l401ktimersoftd/322:08:193
16624993328,3cyclictest33-21ksoftirqd/221:49:012
16624993328,3cyclictest33-21ksoftirqd/200:24:342
16624993327,3cyclictest33-21ksoftirqd/200:04:052
16624993323,8cyclictest33-21ksoftirqd/201:29:272
106891330,1ptp4l2212-21kworker/3:123:06:533
106891330,12ptp4l401ktimersoftd/323:39:023
106891330,0ptp4l401ktimersoftd/300:44:223
1662499329,4cyclictest33-21ksoftirqd/201:09:292
1662499327,4cyclictest33-21ksoftirqd/222:44:192
16624993227,3cyclictest33-21ksoftirqd/202:34:352
16624993227,3cyclictest33-21ksoftirqd/202:14:252
16624993227,3cyclictest33-21ksoftirqd/200:49:172
16624993225,4cyclictest33-21ksoftirqd/202:49:222
16624993221,9cyclictest33-21ksoftirqd/201:25:072
16624993220,9cyclictest33-21ksoftirqd/202:19:302
16624993216,13cyclictest33-21ksoftirqd/223:09:032
106891320,10ptp4l401ktimersoftd/321:45:413
16624993126,3cyclictest33-21ksoftirqd/222:29:032
16624993125,3cyclictest33-21ksoftirqd/222:54:022
106891310,8ptp4l401ktimersoftd/323:14:173
106891310,0ptp4l401ktimersoftd/323:00:533
16624993025,3cyclictest33-21ksoftirqd/222:09:292
16624993024,3cyclictest33-21ksoftirqd/223:34:232
16624993024,3cyclictest33-21ksoftirqd/222:44:022
16624993024,3cyclictest33-21ksoftirqd/222:29:202
16624993024,3cyclictest33-21ksoftirqd/221:39:212
16624993022,4cyclictest16533-21latency_hist21:39:012
16613993015,6cyclictest101ktimersoftd/002:44:210
106891300,0ptp4l401ktimersoftd/323:23:403
16624992924,3cyclictest33-21ksoftirqd/200:14:352
16617992922,4cyclictest25-21ksoftirqd/123:42:511
16617992919,4cyclictest241ktimersoftd/121:54:131
1661399295,16cyclictest3169-21ssh00:04:180
106891290,1ptp4l401ktimersoftd/322:55:073
106891290,1ptp4l401ktimersoftd/322:21:143
106891290,1ptp4l401ktimersoftd/321:59:073
1661399285,12cyclictest14061-21ssh01:54:190
16613992822,3cyclictest9-21ksoftirqd/023:54:310
106891280,1ptp4l401ktimersoftd/322:27:373
16617992720,4cyclictest25-21ksoftirqd/123:53:151
1661399274,14cyclictest14758-21snmpd22:49:140
16613992722,3cyclictest9-21ksoftirqd/022:59:030
16613992721,3cyclictest9-21ksoftirqd/023:14:140
16613992715,8cyclictest9-21ksoftirqd/002:39:230
16613992715,8cyclictest9-21ksoftirqd/002:39:230
1452912720,3phc2sys41-21ksoftirqd/322:09:163
106891270,0ptp4l401ktimersoftd/323:10:203
106891270,0ptp4l401ktimersoftd/323:10:203
106891270,0ptp4l401ktimersoftd/322:43:133
64202260,5sleep11661799cyclictest22:19:331
288002260,2sleep00-21swapper/002:09:210
1661799264,13cyclictest10382-21diskmemload00:14:181
16617992619,4cyclictest25-21ksoftirqd/122:52:451
16617992619,4cyclictest25-21ksoftirqd/100:38:281
16613992620,3cyclictest9-21ksoftirqd/002:29:210
16613992619,4cyclictest12606-21turbostat00:14:050
128822260,3sleep112886-21idleruntime-cro02:59:081
106891260,1ptp4l401ktimersoftd/322:30:013
1661799253,19cyclictest11088-21grep22:29:311
16617992520,3cyclictest25-21ksoftirqd/102:39:231
16617992520,3cyclictest25-21ksoftirqd/102:39:231
16617992518,4cyclictest25-21ksoftirqd/123:20:511
16617992518,4cyclictest25-21ksoftirqd/100:57:231
1661399253,14cyclictest64-21kswapd000:59:180
1661399253,14cyclictest64-21kswapd000:59:180
16613992520,3cyclictest9-21ksoftirqd/002:59:280
16613992520,3cyclictest9-21ksoftirqd/001:49:330
16613992519,3cyclictest9-21ksoftirqd/022:01:570
16613992519,3cyclictest9-21ksoftirqd/001:39:260
16613992518,4cyclictest9-21ksoftirqd/022:47:380
16613992518,4cyclictest9-21ksoftirqd/022:40:230
16613992518,4cyclictest9-21ksoftirqd/022:22:410
16617992417,4cyclictest25-21ksoftirqd/123:36:531
16617992417,4cyclictest25-21ksoftirqd/122:58:271
1661399243,12cyclictest10023-21ssh00:44:170
16613992419,3cyclictest9-21ksoftirqd/003:04:380
16613992419,3cyclictest9-21ksoftirqd/001:59:200
16613992418,3cyclictest9-21ksoftirqd/023:20:300
16613992417,4cyclictest9-21ksoftirqd/023:03:080
16613992417,4cyclictest9-21ksoftirqd/021:46:070
16613992417,4cyclictest21585-21ps23:49:250
1661399240,3cyclictest121rcu_preempt02:04:360
128222240,2sleep00-21swapper/000:14:070
106891240,1ptp4l401ktimersoftd/321:54:243
106891240,0ptp4l401ktimersoftd/322:46:273
44422230,3sleep14452-21ssh02:16:581
185662230,5sleep01661399cyclictest23:46:150
16617992318,3cyclictest25-21ksoftirqd/123:29:041
16617992317,3cyclictest25-21ksoftirqd/100:48:481
16617992316,4cyclictest47050irq/101-ens3-Tx01:29:181
16617992316,4cyclictest30896-21sh01:04:291
16617992316,4cyclictest25-21ksoftirqd/123:18:381
16617992316,4cyclictest25-21ksoftirqd/123:04:571
16617992316,4cyclictest25-21ksoftirqd/121:49:461
16617992316,4cyclictest25-21ksoftirqd/121:47:091
16617992311,9cyclictest30398-21latency_hist23:59:051
16617992311,7cyclictest11713-21kworker/1:123:44:171
16613992318,3cyclictest9-21ksoftirqd/002:29:070
16613992318,3cyclictest9-21ksoftirqd/001:09:060
16613992318,3cyclictest9-21ksoftirqd/000:39:210
16613992317,3cyclictest9-21ksoftirqd/023:26:200
16613992317,3cyclictest9-21ksoftirqd/023:04:120
16613992317,3cyclictest9-21ksoftirqd/001:22:490
16613992317,3cyclictest16060-21grep00:49:260
16613992316,4cyclictest9-21ksoftirqd/022:08:320
16613992316,4cyclictest9-21ksoftirqd/021:56:270
16613992316,4cyclictest3829-21grep02:49:250
16613992315,4cyclictest13743-21head22:34:330
106891230,1ptp4l401ktimersoftd/322:14:583
16617992217,3cyclictest25-21ksoftirqd/101:29:061
16617992216,3cyclictest25-21ksoftirqd/122:41:051
16617992216,3cyclictest25-21ksoftirqd/121:39:101
16617992215,4cyclictest47050irq/101-ens3-Tx02:08:131
16617992215,4cyclictest25-21ksoftirqd/123:13:281
16617992215,4cyclictest25-21ksoftirqd/123:13:281
16617992215,4cyclictest25-21ksoftirqd/122:47:511
16617992215,4cyclictest25-21ksoftirqd/122:25:271
1661399222,12cyclictest64-21kswapd001:34:190
16613992217,3cyclictest9-21ksoftirqd/002:20:140
16613992216,3cyclictest9-21ksoftirqd/022:28:270
16613992215,4cyclictest18932-21sh21:44:010
1661399221,2cyclictest0-21swapper/022:13:550
1486622215,3sleep125-21ksoftirqd/102:28:021
61022114,3sleep09-21ksoftirqd/000:00:300
16617992115,4cyclictest25-21ksoftirqd/122:15:351
16617992115,4cyclictest10382-21diskmemload00:39:301
16617992114,4cyclictest9451-21sendmail_mailst00:09:281
16617992114,4cyclictest29316-21which02:09:251
16617992114,4cyclictest25-21ksoftirqd/123:02:361
1661799211,17cyclictest18091-21ssh02:29:451
16613992116,3cyclictest9-21ksoftirqd/022:16:180
16613992116,3cyclictest9-21ksoftirqd/001:24:260
16613992115,3cyclictest9-21ksoftirqd/021:50:090
16613992111,4cyclictest10382-21diskmemload00:55:170
1276322114,3sleep125-21ksoftirqd/122:34:231
223172200,2sleep10-21swapper/102:02:121
1661799204,10cyclictest5959-21apt-get23:29:191
1661799202,10cyclictest30700-21ssh23:59:201
16617992014,4cyclictest25-21ksoftirqd/101:40:041
16617992014,3cyclictest9452-21hddtemp_smartct01:49:241
16617992014,3cyclictest7465-21perl01:14:231
16617992014,3cyclictest4457-21ptp4l00:04:281
16617992014,3cyclictest30969-21proc_pri22:04:241
16617992014,3cyclictest25-21ksoftirqd/102:19:241
16617992014,3cyclictest14936-21sh00:49:171
16617992013,4cyclictest25-21ksoftirqd/122:02:461
16617992013,4cyclictest25063-21fschecks_count00:59:221
16617992013,4cyclictest25063-21fschecks_count00:59:221
16617992013,4cyclictest22457-21run-parts02:34:301
16617992013,4cyclictest19860-21cat03:04:381
16617992013,4cyclictest17791-21sh00:19:121
16617992013,4cyclictest16799-21sh03:02:281
16617992013,4cyclictest15663-21sh01:22:501
16617992013,4cyclictest1468-21sh02:46:261
16613992015,3cyclictest9-21ksoftirqd/023:43:470
16613992014,3cyclictest9-21ksoftirqd/022:30:550
16613992014,3cyclictest10382-21diskmemload01:11:280
16613992013,4cyclictest8250-21/usr/sbin/munin23:34:360
16617991914,3cyclictest32128-21/usr/sbin/munin22:09:211
16617991913,3cyclictest4318-21fschecks_count01:44:231
16617991913,3cyclictest2051-21/usr/sbin/munin01:09:201
16617991913,3cyclictest14319-21expr01:54:221
16617991912,4cyclictest3580-21cpuspeed_turbos02:49:221
16617991912,4cyclictest32293-21latency_hist00:34:051
16617991912,4cyclictest26572-21/usr/sbin/munin01:34:301
16613991914,3cyclictest9-21ksoftirqd/002:54:250
16613991913,4cyclictest9-21ksoftirqd/023:13:070
16613991913,4cyclictest9-21ksoftirqd/023:13:070
16613991913,3cyclictest9-21ksoftirqd/001:14:200
16613991913,3cyclictest29926-1kworker/u9:102:14:200
16613991913,3cyclictest10382-21diskmemload01:29:180
16613991912,4cyclictest3662-21sh00:37:190
16613991912,4cyclictest10382-21diskmemload01:44:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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