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2025-12-04 - 00:01
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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 the highest latencies:
System rackaslot8.osadl.org (updated Wed Dec 03, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
245902306277,18sleep20-21swapper/207:05:442
245692280246,22sleep10-21swapper/107:05:281
249032271237,21sleep00-21swapper/007:09:290
247202263228,22sleep30-21swapper/307:07:263
228652640,0sleep30-21swapper/310:36:453
192022610,0sleep10-21swapper/111:25:521
308362570,0sleep230835-21ssh12:03:412
127702570,0sleep30-21swapper/309:33:343
242442560,0sleep30-21swapper/311:30:153
253882220,0sleep20-21swapper/210:39:322
2505099204,4cyclictest10741-21idleruntime-cro10:00:011
157202190,0sleep20-21swapper/210:30:242
211792180,0sleep321180-21cpuspeed_turbos08:10:123
239102150,0sleep10-21swapper/110:10:201
105842150,1sleep20-21swapper/211:20:012
115532140,0sleep10-21swapper/112:14:291
48432130,0sleep20-21swapper/209:55:032
2505899130,1cyclictest0-21swapper/311:50:193
2505099139,3cyclictest32610-21apt-get12:05:181
2505099133,7cyclictest18465-21ssh11:00:051
115642130,0sleep211567-21sed11:20:172
2505899121,7cyclictest3984-21ssh12:08:233
2505899120,7cyclictest0-21swapper/310:13:463
2505899120,3cyclictest30654-21snmpd12:03:303
2505899120,3cyclictest22694-21ssh09:42:103
2505899120,2cyclictest4748-21ssh10:48:293
2505899120,2cyclictest32765-21sh11:10:243
2505899120,2cyclictest3108-21ssh11:39:313
2505899120,1cyclictest13793-21smart_sda12:15:193
2505099128,3cyclictest0-21swapper/109:45:131
2505099125,2cyclictest10791-21smartctl07:45:211
2505099124,4cyclictest28275-21sh12:00:421
2505099124,4cyclictest23329-21sh11:56:141
2505099124,4cyclictest23329-21sh11:56:141
2505099124,4cyclictest13184-21diskmemload10:29:361
2505099124,3cyclictest5978-21awk07:35:201
2505099124,3cyclictest31084-21uname07:20:171
2505099124,3cyclictest29945-21sshd08:29:021
2505099123,6cyclictest4242-21sh09:25:401
2505099123,6cyclictest25354-21ssh10:39:301
2505099123,6cyclictest19387-21sh09:39:541
2505099123,6cyclictest16295-21ssh10:57:541
2505899112,8cyclictest508-21dbus-daemon09:26:483
2505899111,6cyclictest14713-21ssh10:55:583
2505899111,1cyclictest24722-21apt-get12:25:143
2505899110,3cyclictest30361-21ssh10:43:093
2505899110,3cyclictest19982-21systemd-journal07:37:053
2505899110,3cyclictest15476-21ssh11:23:243
2505899110,2cyclictest26825-21sh09:45:363
2505899110,2cyclictest23191-21ssh11:56:023
2505899110,2cyclictest23191-21ssh11:56:023
2505899110,2cyclictest18202-21ssh10:33:323
2505899110,2cyclictest12656-21chrt11:46:293
2505899110,2cyclictest10623-21ssh12:13:273
2505899110,2cyclictest10396-21ssh10:26:383
2505899110,1cyclictest5881-21ssh12:35:193
2505899110,1cyclictest3492-21ssh10:20:483
2505899110,1cyclictest31800-21ssh10:17:233
2505899110,1cyclictest29741-11brltty09:20:073
2505899110,1cyclictest27962-21ssh11:06:563
2505899110,1cyclictest1-21systemd09:53:063
2505899110,1cyclictest0-21swapper/309:05:183
2505099117,3cyclictest7959-21which07:40:151
2505099116,4cyclictest32300-21grep08:35:011
2505099116,4cyclictest31927-21cut12:30:181
2505099116,4cyclictest27822-21dump-pmu-power08:25:011
2505099114,3cyclictest6513-21rm10:50:061
2505099114,3cyclictest29288-21ssh11:34:371
2505099114,3cyclictest18971-21ssh10:06:231
2505099114,3cyclictest15798-21diskmemload09:15:371
2505099114,3cyclictest10720-21ssh11:20:021
2505099114,2cyclictest15798-21diskmemload10:49:281
2505099113,6cyclictest31981-21ssh10:17:371
2505099113,6cyclictest31730-21ssh10:44:331
2505099113,6cyclictest23729-21ssh12:24:301
2505099113,5cyclictest5069-21ssh12:35:141
2505099113,5cyclictest32250-21ssh11:35:531
2505099113,5cyclictest27990-21sh11:07:041
2505099113,5cyclictest20624-21ssh11:54:591
2505099113,4cyclictest13944-21timerandwakeup12:15:201
2505099113,3cyclictest10986-21sh10:00:041
2505899103,6cyclictest17569-21fschecks_time11:25:143
2505899102,7cyclictest5565-21cat11:15:183
2505899102,7cyclictest27252-21timerwakeupswit08:20:223
2505899101,3cyclictest4732-21cat11:40:163
2505899101,2cyclictest19982-21systemd-journal11:00:003
2505899101,1cyclictest3382-21sed07:30:163
2505899100,2cyclictest8047-21irqstats07:40:163
2505899100,2cyclictest804-21uname08:35:153
2505899100,2cyclictest668-21runrttasks09:57:203
2505899100,2cyclictest32035-21smart_sda12:30:193
2505899100,2cyclictest30112-21apt07:20:013
2505899100,2cyclictest27243-21munin-run07:15:013
2505899100,2cyclictest19982-21systemd-journal07:51:163
2505899100,2cyclictest17818-21ssh09:37:543
2505899100,2cyclictest1222-21ntp_states07:25:323
2505899100,1cyclictest2360-21apt-get08:40:113
2505899100,1cyclictest20985-21ssh12:21:233
2505899100,1cyclictest20984-21ssh10:08:433
2505899100,1cyclictest15798-21diskmemload10:52:003
2505899100,1cyclictest15798-21diskmemload09:12:593
2505899100,1cyclictest12373-21sendmail_mailqu10:00:203
2505899100,1cyclictest0-21swapper/309:19:553
2505899100,1cyclictest0-21swapper/308:05:113
2505099107,2cyclictest13764-21cron07:55:011
2505099107,2cyclictest11005-21sendmail09:00:001
2505099106,3cyclictest9015-21perl09:30:131
2505099106,3cyclictest8833-21date08:55:001
2505099106,3cyclictest5854-21ntp_states11:15:211
2505099106,3cyclictest4298-21cstates11:40:131
2505099106,3cyclictest4253-21grep07:30:211
2505099106,3cyclictest31298-21sed09:50:151
2505099106,3cyclictest27862-21fschecks_time07:15:011
2505099106,3cyclictest25482-21ssh12:25:171
2505099106,3cyclictest2300-21memory10:20:161
2505099106,3cyclictest21991-21ssh09:40:461
2505099106,3cyclictest21644-21sh08:10:151
2505099106,3cyclictest19982-21systemd-journal11:11:321
2505099106,3cyclictest19415-21smartctl08:05:151
2505099106,3cyclictest14552-21grep09:05:151
2505099106,3cyclictest14060-21ssh10:30:121
2505099106,3cyclictest1070-21sh08:35:161
2505099105,4cyclictest16916-21cat09:10:161
2505099105,4cyclictest10194-21cut11:45:141
2505099103,4cyclictest28641-21ssh09:20:091
250589992,6cyclictest5164-21ntpd08:30:173
250589991,2cyclictest31346-21ntp_states07:20:183
250589990,8cyclictest4558-21/usr/sbin/munin08:45:153
250589990,3cyclictest19982-21systemd-journal08:56:233
250589990,2cyclictest19982-21systemd-journal08:19:023
250589990,2cyclictest19982-21systemd-journal08:19:013
250589990,2cyclictest19982-21systemd-journal08:03:593
250589990,2cyclictest13556-21apt09:04:593
250589990,2cyclictest10762-21run-parts07:45:213
250589990,1cyclictest28664-21taskset08:25:153
250589990,1cyclictest0-21swapper/307:57:313
250509996,2cyclictest32682-21dpkg07:25:121
250509996,2cyclictest26015-21sed07:10:171
250509996,2cyclictest23436-21apt-config08:15:011
250509996,2cyclictest23436-21apt-config08:15:011
250509996,2cyclictest16584-21awk08:00:151
250509995,3cyclictest4634-21awk08:45:131
250509995,3cyclictest2342-21acpi08:40:101
250509995,3cyclictest14240-21cat07:55:131
250509995,3cyclictest0-21swapper/109:00:011
250489994,3cyclictest19982-21systemd-journal09:50:350
250589980,2cyclictest29741-11brltty08:50:053
250549986,2cyclictest21352-21ssh12:21:462
250549984,3cyclictest19982-21systemd-journal11:44:372
250549984,3cyclictest19982-21systemd-journal10:18:072
250549983,3cyclictest19982-21systemd-journal09:15:002
250489984,3cyclictest508-21dbus-daemon08:14:380
250489983,2cyclictest27998-21munin-run10:15:010
6575270,0sleep20-21swapper/210:50:092
3294271,4sleep019982-21systemd-journal12:34:070
250549974,2cyclictest508-21dbus-daemon07:25:492
250549974,2cyclictest11736-21in:imuxsock08:55:552
250549974,2cyclictest11736-21in:imuxsock08:52:222
250549973,3cyclictest508-21dbus-daemon10:45:152
250549973,3cyclictest30654-21snmpd07:14:412
250549973,3cyclictest19982-21systemd-journal09:20:322
250549973,3cyclictest0-21swapper/210:04:172
250549973,3cyclictest0-21swapper/209:45:532
250549973,2cyclictest11736-21in:imuxsock12:12:262
250549973,1cyclictest0-21swapper/212:25:122
250549973,1cyclictest0-21swapper/211:37:082
250549973,1cyclictest0-21swapper/209:50:432
250549972,3cyclictest7661-21lldpd09:03:202
250549972,3cyclictest19982-21systemd-journal09:17:242
250489974,2cyclictest30052-21dump-pmu-power08:30:000
250489973,3cyclictest8501-21find07:40:230
250489973,3cyclictest6035-21cat12:35:200
250489973,3cyclictest16250-21apt-get09:10:130
250489973,3cyclictest0-21swapper/012:08:210
250489973,3cyclictest0-21swapper/009:29:180
250489973,2cyclictest19982-21systemd-journal10:06:270
250489973,1cyclictest16840-21turbostat11:25:000
250489973,1cyclictest0-21swapper/011:10:060
250489973,1cyclictest0-21swapper/010:02:540
250489973,1cyclictest0-21swapper/009:46:370
250489972,4cyclictest13568-21awk09:05:000
250489972,3cyclictest19982-21systemd-journal08:30:040
250489970,5cyclictest15798-21diskmemload11:15:390
250549964,1cyclictest0-21swapper/209:40:212
250549963,2cyclictest5137-21ssh10:22:362
250549963,2cyclictest4202-21unixbench-2d07:30:222
250549963,2cyclictest31332-21gltestperf12:30:142
250549963,2cyclictest29741-11brltty11:25:172
250549963,2cyclictest2946-21gltestperf08:40:142
250549963,2cyclictest28472-21ssh11:07:332
250549963,2cyclictest23912-21timerandwakeup10:10:202
250549963,2cyclictest23562-21ssh11:30:042
250549963,2cyclictest21939-21ssh10:09:482
250549963,2cyclictest19827-21sh11:00:192
250549963,2cyclictest14764-21ntpq09:05:162
250549962,3cyclictest31956-21grep11:10:162
250549962,3cyclictest30812-21fw_packets08:30:142
250549962,3cyclictest30654-21snmpd10:55:042
250549962,3cyclictest30654-21snmpd10:25:052
250549962,3cyclictest30654-21snmpd08:47:432
250549962,3cyclictest30654-21snmpd07:45:382
250549962,3cyclictest29741-11brltty07:39:352
250549962,3cyclictest28915-21cat08:25:162
250549962,3cyclictest26095-21cat08:20:152
250549962,3cyclictest12878-21cstates12:15:132
250549962,3cyclictest0-21swapper/212:38:522
250549962,3cyclictest0-21swapper/211:45:222
250549962,2cyclictest7661-21lldpd07:24:182
250549962,1cyclictest0-21swapper/211:53:312
250549962,1cyclictest0-21swapper/210:41:212
250549962,1cyclictest0-21swapper/209:33:212
250549961,4cyclictest3890-21unixbench_singl09:25:202
250549960,6cyclictest0-21swapper/209:37:272
250549960,3cyclictest13778-21munin-run07:55:002
250549960,2cyclictest8313-21ntp_states07:40:172
250489963,2cyclictest6452-21ssh11:41:110
250489963,2cyclictest5867-21sh12:10:120
250489963,2cyclictest27225-21timerwakeupswit08:20:210
250489963,2cyclictest25201-21fschecks_time12:25:150
250489963,2cyclictest19993-21awk12:20:190
250489963,2cyclictest19982-21systemd-journal08:05:230
250489963,2cyclictest17632-21grep11:25:130
250489963,2cyclictest16027-21sh10:31:180
250489963,2cyclictest0-21swapper/009:37:570
250489962,3cyclictest7661-21lldpd08:16:190
250489962,3cyclictest7661-21lldpd08:16:190
250489962,3cyclictest7128-21expr08:50:130
250489962,3cyclictest6696-21vmstat09:55:250
250489962,3cyclictest5176-21grep07:35:160
250489962,3cyclictest508-21dbus-daemon07:57:560
250489962,3cyclictest30654-21snmpd12:16:500
250489962,3cyclictest30654-21snmpd08:41:400
250489962,3cyclictest30654-21snmpd07:45:120
250489962,3cyclictest30654-21snmpd07:15:280
250489962,3cyclictest28791-21df10:15:130
250489962,3cyclictest19982-21systemd-journal07:53:570
250489962,3cyclictest19982-21systemd-journal07:27:290
250489962,3cyclictest1946-21cut10:20:130
250489962,3cyclictest1-21systemd07:15:010
250489962,3cyclictest0-21swapper/011:50:160
250489962,2cyclictest19982-21systemd-journal08:49:150
250489962,1cyclictest0-21swapper/012:00:400
250489962,1cyclictest0-21swapper/011:35:130
250489962,1cyclictest0-21swapper/009:16:120
250489961,5cyclictest0-21swapper/011:45:190
250489961,3cyclictest19982-21systemd-journal09:31:480
250489961,3cyclictest19982-21systemd-journal07:32:050
250489961,2cyclictest27622-21ssh11:32:490
250489961,2cyclictest13605-21open_inodes10:55:170
250489960,5cyclictest26222-21/usr/sbin/munin10:40:140
250489960,5cyclictest21029-21/usr/sbin/munin11:55:210
250489960,5cyclictest21029-21/usr/sbin/munin11:55:210
250489960,5cyclictest1069-21ntp_states08:35:170
250489960,3cyclictest7887-21rm10:50:190
250489960,3cyclictest28655-21rm09:20:090
250489960,3cyclictest23452-21ssh11:03:460
250489960,3cyclictest2198-21rm10:45:500
250489960,3cyclictest21703-21rm09:40:300
250489960,3cyclictest10756-21rm10:26:590
250489960,2cyclictest24947-21ssh10:39:050
250549953,1cyclictest0-21swapper/208:35:142
250549952,2cyclictest32436-21sh12:05:082
250549952,2cyclictest30654-21snmpd11:55:062
250549952,2cyclictest30654-21snmpd11:55:062
250549952,2cyclictest27978-21grep07:15:012
250549952,2cyclictest23339-21date08:15:012
250549952,2cyclictest23339-21date08:15:012
250549952,2cyclictest21141-21cat08:10:132
250549952,2cyclictest19475-21cat08:05:152
250549952,2cyclictest14123-21ls07:55:122
250549952,2cyclictest11736-21in:imuxsock08:00:012
250489952,2cyclictest30654-21snmpd07:20:040
250489952,2cyclictest16575-21basename08:00:150
250489952,2cyclictest13998-21grep09:05:120
250489952,2cyclictest10287-21cat08:55:220
250489951,3cyclictest25194-21wc11:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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