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2026-04-15 - 18:10
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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 792 highest latencies:
System rack2slot0.osadl.org (updated Wed Apr 15, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184252610,1sleep318411-21sshd12:01:183
184252610,1sleep318411-21sshd12:01:173
112892570,0sleep00-21swapper/012:17:480
43112560,0sleep30-21swapper/310:00:293
326702560,1sleep032669-21sshd11:51:140
286582540,0sleep30-21swapper/310:57:533
194372540,0sleep30-21swapper/310:54:203
185002540,1sleep118491-21lspci11:24:501
168642520,0sleep11-21systemd10:29:151
162002520,0sleep30-21swapper/311:19:033
14222520,0sleep00-21swapper/012:22:420
59502510,0sleep00-21swapper/010:00:390
269912510,0sleep20-21swapper/211:42:172
240042510,0sleep30-21swapper/312:36:183
299072500,0sleep30-21swapper/311:03:333
276862500,0sleep10-21swapper/111:33:591
228892500,1sleep322885-21lspci10:13:113
194802500,1sleep2311rcuc/211:36:022
151472500,0sleep1241ktimersoftd/112:18:091
288302490,0sleep00-21swapper/010:10:510
193302490,0sleep00-21swapper/009:34:100
172402490,0sleep30-21swapper/310:29:173
46102480,0sleep20-21swapper/209:52:192
108602480,0sleep20-21swapper/212:35:082
320362470,0sleep30-21swapper/309:35:133
291712470,1sleep341-21ksoftirqd/310:19:153
274672470,0sleep00-21swapper/011:14:280
277872460,0sleep30-21swapper/311:53:403
92212420,2sleep22435999cyclictest09:38:532
221692360,0sleep20-21swapper/208:20:162
241742298,7sleep30-21swapper/307:09:073
2395422311,7sleep00-21swapper/007:06:230
2407322211,7sleep10-21swapper/107:07:491
235162229,7sleep20-21swapper/207:05:172
91392190,0sleep30-21swapper/312:32:023
24359991919,0cyclictest527-40kipmi010:44:452
24359991918,0cyclictest321ktimersoftd/211:48:002
97372180,0sleep20-21swapper/210:34:092
308302180,1sleep230833-21grep12:10:532
30282180,0sleep10-21swapper/112:31:281
293482180,0sleep30-21swapper/310:24:493
293482180,0sleep30-21swapper/310:24:483
192232170,0sleep20-21swapper/209:11:012
5032160,1sleep1500-21lspci11:42:481
307802160,0sleep10-21swapper/110:52:301
300232160,0sleep30-21swapper/310:44:113
42332150,1sleep14236-21bash10:17:051
249942150,0sleep20-21swapper/210:35:202
24359991515,0cyclictest321ktimersoftd/211:04:202
2435999150,14cyclictest0-21swapper/212:25:102
224682150,0sleep00-21swapper/009:19:200
85702140,0sleep3391rcuc/312:23:203
327542140,0sleep30-21swapper/309:40:503
24359991413,0cyclictest321ktimersoftd/212:03:042
24359991413,0cyclictest321ktimersoftd/212:03:032
24359991413,0cyclictest27077-21lspci11:56:222
134842140,0sleep20-21swapper/212:15:112
2436099130,1cyclictest23005-21systemd-cgroups10:46:173
2435999133,3cyclictest33-21ksoftirqd/210:47:302
24359991312,0cyclictest321ktimersoftd/209:56:552
24359991312,0cyclictest23444-21lspci12:30:212
2435999130,1cyclictest21253-21bash10:51:402
24354991311,1cyclictest0-21swapper/009:40:490
85362120,0sleep10-21swapper/110:06:241
50082120,0sleep20-21swapper/209:25:032
24360991210,1cyclictest12856-21sshd11:38:183
24359991211,0cyclictest20340-21lspci10:15:392
2435999120,11cyclictest0-21swapper/211:14:212
24358991211,0cyclictest0-21swapper/112:14:241
2435899120,1cyclictest6623-21sshd09:41:241
2435899120,1cyclictest1776-21id11:59:541
2435499120,1cyclictest5218-21grep10:58:390
2435499120,1cyclictest4350-21sshd10:28:090
2435499120,1cyclictest1-21systemd11:45:490
2435499120,11cyclictest25260-21sshd12:13:190
2435499120,11cyclictest0-21swapper/011:29:200
2435499120,11cyclictest0-21swapper/011:20:190
177412120,0sleep30-21swapper/311:47:083
119272120,0sleep00-21swapper/010:48:090
2436099110,10cyclictest0-21swapper/312:12:573
2436099110,10cyclictest0-21swapper/308:10:273
2436099110,0cyclictest0-21swapper/310:06:073
2435999119,1cyclictest33-21ksoftirqd/209:48:102
2435999119,1cyclictest10957-21sshd11:21:202
2435999119,1cyclictest0-21swapper/211:54:512
2435999112,3cyclictest642-21systemd-logind09:31:452
2435999111,1cyclictest121rcu_preempt09:43:492
24359991110,0cyclictest3463-21lspci10:11:302
24359991110,0cyclictest0-21swapper/212:05:412
24359991110,0cyclictest0-21swapper/212:05:402
2435999110,2cyclictest0-21swapper/210:04:552
2435899119,1cyclictest24174-21lspci11:25:161
2435899119,1cyclictest13396-21grep09:36:251
2435899119,1cyclictest0-21swapper/109:33:441
24358991110,0cyclictest0-21swapper/110:10:351
2435899110,10cyclictest0-21swapper/112:03:151
2435899110,10cyclictest0-21swapper/112:03:141
2435899110,10cyclictest0-21swapper/110:45:451
2435899110,10cyclictest0-21swapper/109:29:541
2435899110,0cyclictest0-21swapper/112:38:041
2435499119,1cyclictest3071-21sshd09:54:590
2435499110,10cyclictest0-21swapper/010:32:590
2435499110,10cyclictest0-21swapper/008:45:200
2436099109,0cyclictest0-21swapper/311:23:383
2436099109,0cyclictest0-21swapper/309:18:373
2436099108,1cyclictest24171-21lspci11:25:153
2436099100,0cyclictest0-21swapper/310:32:583
2436099100,0cyclictest0-21swapper/309:29:173
2435999109,0cyclictest8285-21sshd10:25:402
2435999109,0cyclictest0-21swapper/212:23:102
2435999109,0cyclictest0-21swapper/211:15:102
2435999108,1cyclictest33-21ksoftirqd/210:25:012
2435999108,1cyclictest33-21ksoftirqd/210:25:002
2435999103,1cyclictest674-21dbus-daemon10:05:342
2435999101,2cyclictest131rcu_sched10:56:332
2435999101,1cyclictest131rcu_sched11:31:452
24359991010,0cyclictest321ktimersoftd/207:21:092
2435899109,0cyclictest0-21swapper/110:20:051
2435899109,0cyclictest0-21swapper/110:20:041
2435899109,0cyclictest0-21swapper/109:57:541
2435899109,0cyclictest0-21swapper/109:14:551
2435899108,1cyclictest0-21swapper/111:54:551
2435899100,9cyclictest0-21swapper/108:13:141
2435499108,1cyclictest0-21swapper/010:19:300
237322100,1sleep341-21ksoftirqd/309:48:283
243609998,0cyclictest0-21swapper/312:26:373
243609998,0cyclictest0-21swapper/312:15:483
243609998,0cyclictest0-21swapper/309:33:083
243609997,1cyclictest674-21dbus-daemon10:36:373
243599997,1cyclictest4751-21lspci09:21:012
243599991,1cyclictest33-21ksoftirqd/211:07:332
243599990,8cyclictest6779-21kworker/2:111:25:212
243599990,8cyclictest22328-21kworker/2:009:18:012
243589998,0cyclictest0-21swapper/112:23:151
243589998,0cyclictest0-21swapper/111:36:551
243589998,0cyclictest0-21swapper/110:04:051
243589998,0cyclictest0-21swapper/108:58:151
243589997,1cyclictest674-21dbus-daemon10:43:441
243589994,4cyclictest699-21gdbus11:13:211
243589990,0cyclictest0-21swapper/109:01:041
243549998,0cyclictest0-21swapper/012:32:590
243549998,0cyclictest0-21swapper/010:09:590
243549998,0cyclictest0-21swapper/009:45:490
243549998,0cyclictest0-21swapper/009:20:290
243549998,0cyclictest0-21swapper/009:10:500
243549998,0cyclictest0-21swapper/008:42:290
243549996,2cyclictest674-21dbus-daemon12:02:110
243549996,2cyclictest674-21dbus-daemon12:02:100
243549995,1cyclictest30910-21kworker/0:311:36:040
243609987,0cyclictest0-21swapper/311:05:273
243609986,1cyclictest3625-21lspci09:55:023
243609985,2cyclictest674-21dbus-daemon09:50:373
243609985,2cyclictest660-21avahi-daemon12:09:513
243609985,2cyclictest660-21avahi-daemon12:09:503
243609985,2cyclictest660-21avahi-daemon11:58:503
243609985,2cyclictest660-21avahi-daemon11:41:083
243609985,2cyclictest660-21avahi-daemon11:10:113
243609985,2cyclictest660-21avahi-daemon09:23:483
243609985,2cyclictest660-21avahi-daemon09:11:503
243609984,2cyclictest660-21avahi-daemon11:32:443
243599988,0cyclictest321ktimersoftd/208:54:102
243589987,0cyclictest0-21swapper/112:05:451
243589987,0cyclictest0-21swapper/112:05:441
243589986,1cyclictest1073-21nfsd11:02:051
243589985,2cyclictest660-21avahi-daemon11:07:401
243589985,2cyclictest660-21avahi-daemon10:33:291
243589985,2cyclictest660-21avahi-daemon09:50:361
243589985,2cyclictest660-21avahi-daemon09:16:361
243589983,4cyclictest699-21gdbus10:55:581
243589983,4cyclictest649-21polkitd10:38:361
243549987,0cyclictest0-21swapper/009:26:390
243549987,0cyclictest0-21swapper/008:50:190
243549986,1cyclictest660-21avahi-daemon12:39:450
243549986,1cyclictest4192-21lspci11:31:550
243549986,1cyclictest17686-21lspci09:56:090
243549985,2cyclictest674-21dbus-daemon12:26:390
243549985,2cyclictest674-21dbus-daemon11:04:570
243549985,2cyclictest660-21avahi-daemon12:09:510
243549985,2cyclictest660-21avahi-daemon12:09:500
243549985,2cyclictest660-21avahi-daemon11:56:580
243549985,2cyclictest660-21avahi-daemon11:40:550
243549985,2cyclictest660-21avahi-daemon11:17:140
243549985,2cyclictest660-21avahi-daemon10:53:430
243549980,4cyclictest13405-21awk10:40:010
243609976,0cyclictest0-21swapper/308:09:273
243599977,0cyclictest527-40kipmi009:08:452
243599977,0cyclictest321ktimersoftd/208:49:092
243599977,0cyclictest321ktimersoftd/207:29:012
243599977,0cyclictest321ktimersoftd/207:18:582
243599975,1cyclictest660-21avahi-daemon07:50:012
243589976,0cyclictest0-21swapper/108:52:541
243589975,1cyclictest1-21systemd11:16:301
243589974,2cyclictest674-21dbus-daemon11:46:041
243589974,2cyclictest660-21avahi-daemon12:25:241
243589974,1cyclictest16526-21sshd09:45:061
243589973,3cyclictest674-21dbus-daemon09:20:081
243549975,1cyclictest7998-21lspci11:07:120
243549975,1cyclictest674-21dbus-daemon10:41:530
243549975,1cyclictest674-21dbus-daemon09:36:360
243549975,1cyclictest29303-21lspci10:22:000
243549975,1cyclictest29303-21lspci10:21:590
243549975,1cyclictest12894-21kworker/0:008:20:010
243549974,2cyclictest674-21dbus-daemon08:05:000
243549974,2cyclictest660-21avahi-daemon09:09:570
243609965,0cyclictest0-21swapper/307:22:273
243609963,2cyclictest13646-21kernelversion08:00:163
243609963,2cyclictest1002-21snmpd09:03:493
243609963,2cyclictest1002-21snmpd08:56:023
243609963,2cyclictest1002-21snmpd08:47:573
243609960,5cyclictest0-21swapper/307:40:373
243609960,5cyclictest0-21swapper/307:33:473
243599963,2cyclictest1002-21snmpd08:05:392
243599963,2cyclictest1002-21snmpd07:47:022
243599963,2cyclictest1002-21snmpd07:37:532
243599960,5cyclictest0-21swapper/207:14:202
243589965,0cyclictest0-21swapper/107:45:541
243589965,0cyclictest0-21swapper/107:20:341
243589965,0cyclictest0-21swapper/107:10:541
243589963,2cyclictest1002-21snmpd09:06:311
243589963,2cyclictest1002-21snmpd08:04:111
243589962,1cyclictest0-21swapper/107:55:201
243589960,5cyclictest0-21swapper/108:33:251
243549965,0cyclictest0-21swapper/007:15:100
243549964,1cyclictest674-21dbus-daemon07:50:000
243549964,1cyclictest1002-21snmpd07:24:250
243549963,2cyclictest1002-21snmpd08:10:090
243549962,2cyclictest26117-21sshd07:12:270
243609954,0cyclictest0-21swapper/307:17:173
243609953,1cyclictest674-21dbus-daemon07:45:003
243609953,1cyclictest19674-21cat08:15:153
243609953,1cyclictest1082-21lldpd08:36:113
243609953,1cyclictest1002-21snmpd08:41:223
243609953,1cyclictest1002-21snmpd08:27:273
243609953,1cyclictest1002-21snmpd08:22:213
243609953,1cyclictest1002-21snmpd07:35:113
243609953,1cyclictest1002-21snmpd07:27:293
243609953,1cyclictest1002-21snmpd07:10:083
243609952,2cyclictest9788-21cut07:50:153
243609952,2cyclictest674-21dbus-daemon08:34:553
243609952,2cyclictest1479-21gltestperf08:50:113
243609952,2cyclictest11546-21cat07:55:143
243609950,4cyclictest8858-21sshd09:07:513
243599955,0cyclictest321ktimersoftd/209:02:222
243599953,1cyclictest660-21avahi-daemon08:05:002
243599953,1cyclictest649-21polkitd08:15:002
243599953,1cyclictest25823-21cat08:30:142
243599953,1cyclictest23292-21/usr/sbin/munin08:25:192
243599953,1cyclictest1088-21ntpd07:30:142
243599953,1cyclictest1002-21snmpd08:56:592
243599953,1cyclictest1002-21snmpd08:41:072
243599953,1cyclictest1002-21snmpd08:35:032
243599953,1cyclictest1002-21snmpd07:56:412
243599952,2cyclictest1002-21snmpd07:41:262
243589953,1cyclictest6760-21latency_hist07:45:001
243589953,1cyclictest649-21polkitd08:30:001
243589953,1cyclictest1041-21rpcbind07:30:001
243589953,1cyclictest1002-21snmpd08:49:391
243589953,1cyclictest1002-21snmpd08:43:211
243589953,1cyclictest1002-21snmpd08:36:031
243589953,1cyclictest1002-21snmpd08:15:281
243589953,1cyclictest1002-21snmpd08:06:391
243589953,1cyclictest1002-21snmpd07:25:291
243589952,2cyclictest1002-21snmpd07:50:511
243549955,0cyclictest12894-21kworker/0:008:05:590
243549954,0cyclictest0-21swapper/007:44:000
243549953,1cyclictest660-21avahi-daemon07:25:030
243549953,1cyclictest4290-21head07:35:180
243549953,1cyclictest1705-21sendmail07:49:110
243549953,1cyclictest11475-21grep07:55:140
243549953,1cyclictest1002-21snmpd08:58:170
243549953,1cyclictest1002-21snmpd08:37:030
243549953,1cyclictest1002-21snmpd08:30:220
243549953,1cyclictest1002-21snmpd08:28:540
243549953,1cyclictest1002-21snmpd08:15:150
243549953,1cyclictest1002-21snmpd07:32:070
243599940,3cyclictest19338-21tr08:15:132
243589942,1cyclictest3181-21df07:35:101
243589942,1cyclictest26932-21cat07:15:021
243589942,1cyclictest21643-21hddtemp_smartct08:20:121
243549942,1cyclictest660-21avahi-daemon09:00:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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