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2026-07-26 - 14:24
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackaslot8.osadl.org (updated Sun Jul 26, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159452326295,21sleep10-21swapper/119:06:421
142332281250,21sleep20-21swapper/219:05:022
160102268213,17sleep00-21swapper/019:07:250
160662263232,20sleep30-21swapper/319:08:083
325922570,0sleep20-21swapper/221:25:132
176982570,0sleep30-21swapper/322:52:313
24242560,0sleep10-21swapper/100:20:141
9632540,0sleep10-21swapper/100:19:501
195992540,0sleep20-21swapper/222:53:592
164472210,0sleep10-21swapper/121:15:191
114362180,0sleep00-21swapper/023:27:240
79752170,0sleep20-21swapper/222:46:302
42762170,0sleep20-21swapper/200:01:422
267062170,1sleep3331rcuc/320:40:183
134712140,0sleep30-21swapper/321:13:563
1632699101,3cyclictest275-21systemd-journal20:31:363
163269993,2cyclictest658-21snmpd22:12:273
163269984,3cyclictest275-21systemd-journal19:48:293
163129986,2cyclictest12-21ksoftirqd/023:55:010
163129983,3cyclictest275-21systemd-journal23:00:010
32207270,0sleep10-21swapper/100:38:081
28755270,0sleep00-21swapper/023:57:080
22012270,0sleep10-21swapper/123:14:531
17232270,0sleep00-21swapper/021:54:430
163269974,2cyclictest10946-21sshd22:29:283
163269973,3cyclictest20246-21smart_sda20:25:203
163269973,3cyclictest13249-21ntpq22:30:213
163269973,2cyclictest275-21systemd-journal19:16:503
163219976,1cyclictest28-21ksoftirqd/219:30:012
163219974,2cyclictest275-21systemd-journal23:25:012
163219973,3cyclictest658-21snmpd19:51:472
163219973,3cyclictest504-21dbus-daemon23:45:002
163219973,3cyclictest275-21systemd-journal21:22:082
163219972,4cyclictest19638-21cat21:55:192
163219972,3cyclictest275-21systemd-journal21:40:282
163179976,1cyclictest22-21ksoftirqd/119:50:001
163179974,2cyclictest504-21dbus-daemon21:55:011
163179974,2cyclictest31746-11brltty19:15:141
163179974,2cyclictest21041-11brltty19:25:171
163179973,3cyclictest658-21snmpd19:14:351
163179973,3cyclictest20128-21cat22:15:181
163179971,3cyclictest5128-21munin-run19:55:001
163129975,2cyclictest12-21ksoftirqd/000:40:000
163129975,1cyclictest12-21ksoftirqd/022:15:020
163129974,2cyclictest658-21snmpd00:00:290
163129973,3cyclictest658-21snmpd21:21:010
163129973,3cyclictest275-21systemd-journal21:40:000
163129973,1cyclictest0-21swapper/000:20:020
11667270,0sleep20-21swapper/221:31:382
10481270,0sleep30-21swapper/300:25:143
163269963,2cyclictest8857-21date23:45:163
163269963,2cyclictest7009-21sh22:07:243
163269963,2cyclictest5919-21ssh21:47:303
163269963,2cyclictest504-21dbus-daemon19:24:273
163269963,2cyclictest24905-21ntpq21:20:183
163269963,2cyclictest12090-21sh23:08:393
163269963,1cyclictest0-21swapper/322:45:313
163269963,1cyclictest0-21swapper/322:41:123
163269962,3cyclictest658-21snmpd23:02:403
163269962,3cyclictest658-21snmpd22:55:103
163269962,3cyclictest658-21snmpd21:56:233
163269962,3cyclictest658-21snmpd21:41:173
163269962,3cyclictest658-21snmpd21:36:443
163269962,3cyclictest658-21snmpd00:16:223
163269962,3cyclictest658-21snmpd00:05:513
163269962,3cyclictest539-21sed20:55:153
163269962,3cyclictest504-21dbus-daemon21:25:023
163269962,3cyclictest32652-21sed23:40:153
163269962,3cyclictest275-21systemd-journal20:08:393
163269962,3cyclictest23793-21cat20:35:153
163269962,3cyclictest23776-21ntpq23:15:193
163269962,3cyclictest21703-21tr22:35:203
163269962,3cyclictest18725-21mailstats00:10:183
163269962,3cyclictest17749-21ntpq20:20:173
163269962,3cyclictest15385-21seq21:15:133
163269962,3cyclictest1-21systemd19:59:043
163269962,1cyclictest0-21swapper/323:50:543
163269962,1cyclictest0-21swapper/323:25:563
163269962,1cyclictest0-21swapper/323:10:083
163269962,1cyclictest0-21swapper/300:30:093
163269961,3cyclictest275-21systemd-journal19:51:343
163269960,6cyclictest0-21swapper/322:20:193
163269960,2cyclictest8120-21perl20:00:153
163219966,0cyclictest6439-21diskmemload22:36:402
163219966,0cyclictest0-21swapper/222:12:082
163219964,1cyclictest27297-21users20:40:212
163219964,1cyclictest17583-21sed21:35:152
163219963,2cyclictest658-21snmpd21:10:002
163219963,2cyclictest658-21snmpd20:26:252
163219963,2cyclictest5821-21ssh23:05:042
163219963,2cyclictest275-21systemd-journal23:54:552
163219963,2cyclictest275-21systemd-journal19:42:282
163219963,2cyclictest25285-21head23:55:142
163219963,2cyclictest12681-21rm22:30:182
163219963,2cyclictest0-21swapper/222:18:152
163219963,2cyclictest0-21swapper/222:06:092
163219962,3cyclictest7817-21cat23:25:152
163219962,3cyclictest658-21snmpd23:03:192
163219962,3cyclictest658-21snmpd22:26:072
163219962,3cyclictest658-21snmpd22:21:162
163219962,3cyclictest658-21snmpd21:05:272
163219962,3cyclictest658-21snmpd21:03:482
163219962,3cyclictest658-21snmpd20:51:482
163219962,3cyclictest658-21snmpd20:31:422
163219962,3cyclictest658-21snmpd20:17:452
163219962,3cyclictest658-21snmpd20:14:202
163219962,3cyclictest658-21snmpd19:23:212
163219962,3cyclictest658-21snmpd00:05:162
163219962,3cyclictest491-21systemd-logind19:16:572
163219962,3cyclictest28265-21wc00:35:202
163219962,3cyclictest24432-21ntpq20:35:182
163219962,3cyclictest24035-21expr23:35:142
163219962,3cyclictest23486-21cat23:15:182
163219962,3cyclictest14573-21expr23:10:122
163219962,1cyclictest0-21swapper/221:50:132
163219962,1cyclictest0-21swapper/200:11:472
163219961,3cyclictest275-21systemd-journal22:59:462
163219961,3cyclictest26335-21rm22:00:032
163219960,6cyclictest0-21swapper/221:16:542
163219960,6cyclictest0-21swapper/200:15:332
163219960,2cyclictest23199-21awk23:35:012
163179963,2cyclictest9518-21ssh22:28:231
163179963,2cyclictest8806-21rm21:10:271
163179963,2cyclictest7446-21chrt21:48:391
163179963,2cyclictest663-21runrttasks22:23:231
163179963,2cyclictest663-21runrttasks20:06:441
163179963,2cyclictest658-21snmpd21:31:221
163179963,2cyclictest658-21snmpd20:47:571
163179963,2cyclictest658-21snmpd20:41:511
163179963,2cyclictest6439-21diskmemload23:17:301
163179963,2cyclictest5215-21ssh00:02:251
163179963,2cyclictest504-21dbus-daemon00:00:011
163179963,2cyclictest22-21ksoftirqd/120:25:011
163179963,2cyclictest16269-21cat23:30:161
163179963,2cyclictest13948-21cat22:50:171
163179963,1cyclictest0-21swapper/123:41:511
163179962,3cyclictest658-21snmpd23:47:111
163179962,3cyclictest658-21snmpd23:07:351
163179962,3cyclictest658-21snmpd22:35:091
163179962,3cyclictest658-21snmpd22:31:151
163179962,3cyclictest658-21snmpd21:21:141
163179962,3cyclictest658-21snmpd21:01:401
163179962,3cyclictest658-21snmpd20:59:331
163179962,3cyclictest658-21snmpd20:37:091
163179962,3cyclictest658-21snmpd20:10:421
163179962,3cyclictest658-21snmpd19:43:261
163179962,3cyclictest658-21snmpd19:20:111
163179962,3cyclictest658-21snmpd00:32:181
163179962,3cyclictest658-21snmpd00:29:091
163179962,3cyclictest658-21snmpd00:10:211
163179962,3cyclictest4625-21expr21:05:141
163179962,3cyclictest32684-21fschecks_count21:25:141
163179962,3cyclictest29526-21cat22:40:151
163179962,3cyclictest27544-21cat19:30:181
163179962,3cyclictest20698-21sshd20:26:281
163179962,1cyclictest17923-21grep21:35:161
163179962,1cyclictest169542gltestperf23:50:141
163179961,4cyclictest504-11dbus-daemon23:20:411
163179961,2cyclictest17241-21kworker/u8:223:25:181
163179960,6cyclictest0-21swapper/122:11:161
163179960,6cyclictest0-21swapper/121:44:331
163179960,3cyclictest22764-21smart_sda22:55:181
163179960,2cyclictest5198-21sh23:05:011
163179960,0cyclictest0-21swapper/122:06:561
163179960,0cyclictest0-21swapper/100:05:461
163129963,2cyclictest658-21snmpd00:31:450
163129963,2cyclictest504-21dbus-daemon20:51:120
163129963,2cyclictest504-21dbus-daemon19:30:000
163129963,2cyclictest32011-21ssh21:25:030
163129963,2cyclictest31637-21grep23:20:140
163129963,2cyclictest29894-21ssh22:20:390
163129963,2cyclictest27134-21grep22:00:160
163129963,2cyclictest22516-21ssh23:15:040
163129963,2cyclictest16381-21ntpq23:30:170
163129963,2cyclictest12045-21rm23:47:080
163129963,2cyclictest11706-21ssh21:12:360
163129963,2cyclictest11016-21sshd00:05:280
163129962,3cyclictest658-21snmpd23:01:050
163129962,3cyclictest658-21snmpd22:41:270
163129962,3cyclictest658-21snmpd22:19:450
163129962,3cyclictest658-21snmpd21:15:180
163129962,3cyclictest658-21snmpd20:21:530
163129962,3cyclictest658-21snmpd20:05:350
163129962,3cyclictest658-21snmpd20:03:030
163129962,3cyclictest658-21snmpd19:56:030
163129962,3cyclictest658-21snmpd19:40:200
163129962,3cyclictest658-21snmpd19:35:140
163129962,3cyclictest658-21snmpd19:19:070
163129962,3cyclictest32395-21/usr/sbin/munin20:55:170
163129962,3cyclictest2914-21cat21:00:160
163129962,3cyclictest275-21systemd-journal22:27:110
163129962,3cyclictest25987-21grep21:40:150
163129962,3cyclictest24151-21cat23:35:150
163129962,3cyclictest19585-21wc21:55:200
163129962,3cyclictest18177-21cat00:10:140
163129962,2cyclictest275-21systemd-journal21:32:070
163129962,1cyclictest0-21swapper/023:10:190
163129962,1cyclictest0-21swapper/022:09:460
163129962,1cyclictest0-21swapper/021:45:460
163129962,1cyclictest0-21swapper/000:29:420
163129962,1cyclictest0-21swapper/000:16:540
163129960,6cyclictest0-21swapper/023:07:580
163129960,6cyclictest0-21swapper/022:51:080
163129960,5cyclictest13742-21timerwakeupswit22:30:230
163129960,5cyclictest0-21swapper/020:45:130
163129960,0cyclictest0-21swapper/022:46:340
163269953,1cyclictest32524-21timerandwakeup23:20:193
163269952,2cyclictest9682-21date21:30:203
163269952,2cyclictest658-21snmpd19:35:033
163269952,2cyclictest658-21snmpd00:35:133
163269952,2cyclictest658-21snmpd00:20:133
163269952,2cyclictest4839-21expr21:05:133
163269952,2cyclictest28523-21grep20:45:153
163269952,2cyclictest26898-21expr19:30:153
163269952,2cyclictest23635-21ssh23:35:113
163269952,2cyclictest19804-21df_inode22:15:143
163269952,2cyclictest15105-21sh23:30:043
163269952,2cyclictest12728-21cat20:10:163
163269952,2cyclictest10506-21cat21:50:183
163269951,3cyclictest30296-21cat20:50:133
163269951,3cyclictest24854-21tr23:55:123
163269951,3cyclictest14943-21cat20:15:153
163269951,3cyclictest0-21swapper/322:00:073
163269950,4cyclictest2628-21df21:00:133
163269950,3cyclictest435-40systemctl00:00:003
163269950,3cyclictest275-21systemd-journal19:12:183
163269950,2cyclictest25177-21awk19:25:193
163219953,1cyclictest29512-21ntp_kernel_err19:35:172
163219953,1cyclictest28-21ksoftirqd/219:55:142
163219952,2cyclictest9339-21taskset20:02:062
163219952,2cyclictest658-21snmpd23:45:022
163219952,2cyclictest457-21tune2fs20:55:152
163219952,2cyclictest28778-21ssh22:40:122
163219952,2cyclictest2136-21rm00:20:142
163219952,2cyclictest18372-21sh00:30:082
163219952,2cyclictest17207-21cat19:10:162
163219952,2cyclictest17007-21cut20:20:142
163219952,2cyclictest10343-21expr00:25:132
163219952,2cyclictest10162-21cat20:05:142
163219952,1cyclictest0-21swapper/221:45:012
163219951,3cyclictest914-21/usr/sbin/munin19:45:132
163219950,3cyclictest28069-21sshd19:31:522
163179953,1cyclictest21851-21grep20:30:151
163179953,1cyclictest18048-21sh21:55:091
163179952,3cyclictest658-21snmpd19:57:151
163179952,2cyclictest7815-21cat20:00:151
163179952,2cyclictest658-21snmpd23:35:111
163179952,2cyclictest5483-21cat22:45:161
163179952,2cyclictest28320-21ssh22:00:221
163179952,2cyclictest275-21systemd-journal19:36:081
163179952,2cyclictest14632-21expr20:15:141
163179951,3cyclictest30858-21cat20:50:161
163129952,2cyclictest658-21snmpd23:40:050
163129952,2cyclictest658-21snmpd19:50:030
163129952,2cyclictest658-21snmpd19:45:020
163129952,2cyclictest23670-21grep20:35:140
163129952,2cyclictest19395-21expr20:25:130
163129952,2cyclictest17781-21cat19:10:210
163129952,2cyclictest13403-21cat20:10:210
163129952,2cyclictest12-21ksoftirqd/020:30:160
163129951,3cyclictest5437-21ntp_states21:05:180
163129951,3cyclictest22566-21basename19:20:150
163129951,3cyclictest20945-21cut22:35:140
163129950,4cyclictest27184-21grep20:40:210
163129950,4cyclictest26344-21/usr/sbin/munin19:30:160
163129950,1cyclictest0-21swapper/020:15:120
163269940,3cyclictest30811-21taskset19:40:133
163219940,3cyclictest28184-21cstates20:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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