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2026-08-06 - 01:48
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Thu Aug 06, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254292217151,22sleep20-21swapper/219:08:222
252562201161,27sleep30-21swapper/319:06:073
255532200138,21sleep00-21swapper/019:09:570
254282198159,25sleep10-21swapper/119:08:221
309222690,1sleep121-21ksoftirqd/120:25:141
30642590,0sleep00-21swapper/023:02:380
163972200,0sleep1201rcuc/119:55:151
2565999160,1cyclictest30453-21gltestperf22:10:142
25666991313,0cyclictest35-21ksoftirqd/321:39:593
2565999130,13cyclictest0-21swapper/223:25:022
2565999130,1cyclictest12934-21hddtemp_smartct21:45:152
25666991210,1cyclictest35-21ksoftirqd/323:20:003
2565999120,6cyclictest3237-21apt-get00:35:122
25645991210,1cyclictest9-21ksoftirqd/023:00:000
2565999115,5cyclictest19791-21cat22:40:142
2565999113,6cyclictest240-21systemd-journal21:20:002
2565999112,0cyclictest22471-21apt-get22:45:132
2565999111,9cyclictest0-21swapper/200:25:092
2565999110,10cyclictest0-21swapper/221:53:572
2565999110,1cyclictest0-21swapper/222:20:032
2564599119,1cyclictest9-21ksoftirqd/000:20:000
2564599113,4cyclictest8287-21latency_hist19:39:590
2564599110,11cyclictest0-21swapper/021:05:130
174762110,0sleep20-21swapper/222:36:222
2566699109,1cyclictest35-21ksoftirqd/300:30:143
2565999105,4cyclictest6590-21ssh23:54:442
2565999105,4cyclictest32659-21ssh22:59:522
2565999105,4cyclictest26252-21cat23:35:162
2565999104,5cyclictest30836-21sshd23:40:582
2565999104,5cyclictest12129-21sensors00:00:212
2565999101,1cyclictest18692-21diskmemload22:50:112
2565999100,4cyclictest0-21swapper/219:25:122
2565999100,3cyclictest0-21swapper/200:10:162
2565999100,2cyclictest240-21systemd-journal22:05:002
2565999100,2cyclictest240-21systemd-journal20:10:002
2565999100,2cyclictest240-21systemd-journal20:05:002
2565999100,2cyclictest0-21swapper/221:30:072
2565999100,2cyclictest0-21swapper/200:18:372
2565999100,1cyclictest0-21swapper/222:27:452
2565999100,0cyclictest0-21swapper/223:49:252
2565999100,0cyclictest0-21swapper/222:05:212
2564599109,1cyclictest9-21ksoftirqd/022:05:000
2564599109,1cyclictest9-21ksoftirqd/000:09:180
2564599108,1cyclictest9-21ksoftirqd/019:59:590
25645991010,0cyclictest9-21ksoftirqd/022:30:150
256669998,1cyclictest35-21ksoftirqd/323:05:303
256669998,1cyclictest35-21ksoftirqd/321:25:003
256669997,1cyclictest35-21ksoftirqd/300:20:013
256599996,3cyclictest61650irq/122-eno120:35:172
256599994,4cyclictest3077-21ssh23:02:412
256599992,2cyclictest32185-21uname19:20:142
256599992,1cyclictest11399-21cut23:15:122
256599990,8cyclictest18692-21diskmemload00:30:142
256599990,7cyclictest0-21swapper/221:10:162
256599990,3cyclictest0-21swapper/223:23:322
256599990,2cyclictest0-21swapper/221:25:132
256599990,2cyclictest0-21swapper/200:25:002
256599990,2cyclictest0-21swapper/200:25:002
256599990,1cyclictest240-21systemd-journal19:34:562
256599990,1cyclictest0-21swapper/223:59:572
256599990,1cyclictest0-21swapper/221:40:232
256599990,1cyclictest0-21swapper/221:39:572
256599990,1cyclictest0-21swapper/221:20:372
256599990,0cyclictest0-21swapper/220:45:002
256459998,1cyclictest9-21ksoftirqd/021:59:420
256459998,1cyclictest9-21ksoftirqd/021:15:010
256459997,1cyclictest9-21ksoftirqd/021:20:000
256459995,1cyclictest4372-21cron21:34:590
256459992,1cyclictest561-21nscd23:40:450
256459990,8cyclictest26133-21/usr/sbin/munin21:20:160
17760290,0sleep10-21swapper/121:51:311
32130280,1sleep10-21swapper/122:12:381
256669987,1cyclictest35-21ksoftirqd/321:45:143
256669980,4cyclictest20232-21ssh21:55:213
256599987,1cyclictest28-21ksoftirqd/222:35:002
256599986,2cyclictest61650irq/122-eno119:43:302
256599986,1cyclictest61650irq/122-eno121:55:202
256599986,1cyclictest11301-21snmpd20:28:192
256599986,1cyclictest11301-21snmpd19:19:132
256599984,3cyclictest61650irq/122-eno122:15:122
256599983,4cyclictest11301-21snmpd19:39:042
256599983,1cyclictest61650irq/122-eno120:45:182
256599982,1cyclictest32473-21/usr/sbin/munin20:30:122
256599982,1cyclictest22976-21cut20:10:132
256599982,1cyclictest15593-21mailstats21:00:172
256599982,1cyclictest0-21swapper/219:50:162
256599981,1cyclictest29199-21/usr/sbin/munin20:20:192
256599980,2cyclictest9673-21sh23:11:192
256599980,2cyclictest17680-21latency_hist20:00:002
256599980,2cyclictest12957-21munin-run19:49:592
256599980,1cyclictest548-21systemd-logind20:55:212
256599980,1cyclictest240-21systemd-journal19:15:012
256599980,1cyclictest0-21swapper/223:30:212
256599980,1cyclictest0-21swapper/200:07:042
256539981,4cyclictest7010-21taskset23:09:041
256539981,3cyclictest0-21swapper/123:57:551
256539980,5cyclictest0-21swapper/122:20:011
256459987,1cyclictest9-21ksoftirqd/023:20:000
256459987,1cyclictest9-21ksoftirqd/023:10:000
256459987,1cyclictest9-21ksoftirqd/022:25:110
256459987,1cyclictest9-21ksoftirqd/022:13:100
256459986,1cyclictest9-21ksoftirqd/000:35:010
256459985,1cyclictest9-21ksoftirqd/020:33:110
256459984,1cyclictest9-21ksoftirqd/023:54:440
256459981,6cyclictest11650-21ssh00:00:180
256459980,7cyclictest561-21nscd23:30:320
256459980,5cyclictest29744-21sh21:25:030
256459980,1cyclictest18299-21ssh22:39:030
256669976,1cyclictest35-21ksoftirqd/323:25:003
256669976,1cyclictest35-21ksoftirqd/323:14:593
256669976,1cyclictest35-21ksoftirqd/322:15:013
256669976,1cyclictest35-21ksoftirqd/321:35:003
256669976,1cyclictest35-21ksoftirqd/320:40:003
256669976,1cyclictest35-21ksoftirqd/320:30:003
256669976,1cyclictest11301-21snmpd23:33:553
256669976,1cyclictest11301-21snmpd20:58:223
256669976,1cyclictest11301-21snmpd19:27:283
256669975,1cyclictest35-21ksoftirqd/323:21:133
256669974,1cyclictest18692-21diskmemload00:39:493
256669970,5cyclictest28022-21munin-node22:30:483
256669970,5cyclictest0-21swapper/322:53:163
256669970,2cyclictest0-21swapper/321:17:223
256599971,5cyclictest28022-21munin-node20:18:472
256599971,1cyclictest16821-21cpuspeed_turbos21:05:142
256599971,1cyclictest10416-21kernelversion20:50:142
256599970,1cyclictest4852-21grep23:05:132
256539971,6cyclictest0-21swapper/120:48:211
256539971,2cyclictest0-21swapper/119:20:121
256539970,6cyclictest0-21swapper/122:15:251
256539970,6cyclictest0-21swapper/121:23:551
256539970,6cyclictest0-21swapper/120:20:211
256539970,5cyclictest0-21swapper/100:06:221
256539970,4cyclictest0-21swapper/123:43:461
256539970,4cyclictest0-21swapper/120:55:221
256539970,1cyclictest0-21swapper/122:34:111
256539970,1cyclictest0-21swapper/120:51:521
256459977,0cyclictest9-21ksoftirqd/021:42:240
256459976,1cyclictest9-21ksoftirqd/022:44:200
256459976,1cyclictest28419-21ssh00:25:070
256459976,1cyclictest11301-21snmpd21:49:140
256459975,1cyclictest11301-21snmpd23:35:060
256459975,1cyclictest11301-21snmpd20:39:360
256459975,1cyclictest11301-21snmpd19:10:150
256459974,1cyclictest240-21systemd-journal21:00:000
256459971,6cyclictest5354-21ssh00:36:270
256459971,5cyclictest9491-21/usr/sbin/munin20:50:150
256459970,7cyclictest18692-21diskmemload22:52:320
256459970,2cyclictest25050-21ssh22:47:580
256459970,2cyclictest0-21swapper/022:20:140
256459970,1cyclictest17640-21ssh00:10:030
256459970,1cyclictest0-21swapper/023:10:130
256459970,1cyclictest0-21swapper/022:05:150
256669965,1cyclictest925-21cat20:30:153
256669965,1cyclictest6228-21ssh23:53:333
256669965,1cyclictest35-21ksoftirqd/320:15:003
256669965,1cyclictest35-21ksoftirqd/319:18:433
256669965,1cyclictest32091-21ssh21:26:483
256669965,1cyclictest30653-21ntpq22:55:183
256669965,1cyclictest28319-21ssh23:39:163
256669965,1cyclictest16437-21cat19:55:153
256669965,1cyclictest11301-21snmpd22:42:143
256669965,1cyclictest11301-21snmpd21:08:403
256669965,1cyclictest11301-21snmpd20:07:183
256669964,1cyclictest18692-21diskmemload22:38:533
256669964,1cyclictest18692-21diskmemload22:26:153
256669964,0cyclictest18692-21diskmemload00:23:043
256669964,0cyclictest18692-21diskmemload00:23:033
256669964,0cyclictest18692-21diskmemload00:12:253
256669963,1cyclictest240-21systemd-journal23:00:003
256669963,1cyclictest240-21systemd-journal19:55:003
256669963,1cyclictest18692-21diskmemload21:40:483
256669963,1cyclictest18692-21diskmemload00:26:173
256669963,1cyclictest18692-21diskmemload00:06:013
256669962,3cyclictest6581-21expr19:35:123
256669962,1cyclictest9272-21awk20:50:003
256669962,1cyclictest8488-21apt-get19:40:153
256669961,5cyclictest18728-21nscd23:40:453
256669961,3cyclictest0-21swapper/300:00:193
256669960,3cyclictest0-21swapper/322:05:113
256669960,2cyclictest4669-21/usr/sbin/munin22:20:133
256669960,2cyclictest0-21swapper/323:45:223
256669960,1cyclictest0-21swapper/323:55:103
256539965,1cyclictest0-21swapper/119:15:151
256539964,1cyclictest0-21swapper/122:25:101
256539960,6cyclictest0-21swapper/123:48:301
256539960,6cyclictest0-21swapper/123:29:331
256539960,6cyclictest0-21swapper/123:10:191
256539960,6cyclictest0-21swapper/122:50:041
256539960,6cyclictest0-21swapper/100:39:541
256539960,6cyclictest0-21swapper/100:15:401
256539960,5cyclictest0-21swapper/121:15:021
256539960,4cyclictest0-21swapper/122:45:161
256539960,4cyclictest0-21swapper/122:41:051
256539960,4cyclictest0-21swapper/121:13:261
256539960,4cyclictest0-21swapper/100:26:341
256539960,3cyclictest0-21swapper/123:15:171
256539960,3cyclictest0-21swapper/122:07:201
256539960,3cyclictest0-21swapper/119:35:101
256539960,2cyclictest0-21swapper/123:36:411
256539960,2cyclictest0-21swapper/122:00:131
256539960,2cyclictest0-21swapper/100:00:121
256539960,1cyclictest0-21swapper/121:40:221
256539960,1cyclictest0-21swapper/120:30:331
256539960,1cyclictest0-21swapper/120:12:541
256459965,1cyclictest9-21ksoftirqd/021:34:590
256459965,1cyclictest9-21ksoftirqd/020:10:010
256459965,1cyclictest9-21ksoftirqd/019:15:010
256459965,1cyclictest30677-1kworker/u9:223:45:110
256459965,1cyclictest24929-21/usr/sbin/munin00:20:130
256459965,1cyclictest24929-21/usr/sbin/munin00:20:130
256459964,1cyclictest9-21ksoftirqd/021:50:130
256459964,1cyclictest9-21ksoftirqd/019:35:010
256459960,6cyclictest0-21swapper/022:15:070
256459960,6cyclictest0-21swapper/019:29:220
256459960,5cyclictest27314-21munin-run20:20:010
256459960,2cyclictest18692-21diskmemload23:20:100
256459960,1cyclictest30506-21cstates20:25:140
256459960,0cyclictest0-21swapper/023:55:150
256459960,0cyclictest0-21swapper/023:25:190
256459960,0cyclictest0-21swapper/020:45:580
256459960,0cyclictest0-21swapper/020:40:170
256459960,0cyclictest0-21swapper/020:20:110
256459960,0cyclictest0-21swapper/020:03:380
256459960,0cyclictest0-21swapper/019:50:130
256459960,0cyclictest0-21swapper/019:21:530
256669954,1cyclictest35-21ksoftirqd/320:16:013
256669954,1cyclictest35-21ksoftirqd/319:20:103
256669954,1cyclictest26736-21cat19:10:153
256669954,1cyclictest11301-21snmpd21:03:563
256669954,1cyclictest11301-21snmpd20:40:003
256669954,0cyclictest18692-21diskmemload22:00:183
256669953,1cyclictest18482-21cat20:00:133
256669953,1cyclictest11301-21snmpd20:20:213
256669953,0cyclictest18692-21diskmemload22:45:343
256669953,0cyclictest18692-21diskmemload21:50:293
256669950,5cyclictest0-21swapper/322:15:193
256669950,2cyclictest0-21swapper/321:10:123
256669950,1cyclictest0-21swapper/319:45:183
256539955,0cyclictest0-21swapper/121:56:051
256539953,1cyclictest16834-21chrt23:21:421
256539953,1cyclictest1182-21chrt19:25:031
256539952,1cyclictest0-21swapper/121:35:301
256539951,2cyclictest0-21swapper/100:30:181
256539951,1cyclictest0-21swapper/123:51:401
256539951,1cyclictest0-21swapper/121:25:141
256539950,5cyclictest0-21swapper/120:41:351
256539950,5cyclictest0-21swapper/119:12:031
256539950,4cyclictest20077-21taskset00:12:191
256539950,4cyclictest0-21swapper/122:55:121
256539950,4cyclictest0-21swapper/122:35:151
256539950,4cyclictest0-21swapper/120:15:441
256539950,3cyclictest0-21swapper/123:04:011
256539950,2cyclictest0-21swapper/123:30:191
256539950,2cyclictest0-21swapper/121:46:021
256539950,2cyclictest0-21swapper/121:30:361
256539950,2cyclictest0-21swapper/121:05:131
256539950,2cyclictest0-21swapper/100:20:171
256539950,2cyclictest0-21swapper/100:20:171
256539950,1cyclictest0-21swapper/119:50:181
256459953,1cyclictest24500-21grep20:10:200
256459950,4cyclictest8871-21cstates19:40:180
256459950,4cyclictest10835-21/usr/sbin/munin19:45:120
256459950,1cyclictest0-21swapper/021:00:110
256669943,1cyclictest3756-21cpu19:30:123
256669942,1cyclictest9533-21aten_r1power_en20:50:123
256539942,1cyclictest44012sleep120:38:331
256539942,1cyclictest20012-21chrt20:02:161
256539942,1cyclictest10537-21chrt19:44:211
256539940,4cyclictest0-21swapper/119:33:411
256539940,3cyclictest0-21swapper/120:05:211
256539940,2cyclictest0-21swapper/119:45:191
256539931,1cyclictest0-21swapper/121:00:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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