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2025-10-19 - 03:35
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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 highest latencies:
System rackeslot2.osadl.org (updated Sat Oct 18, 2025 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
418419221520,2sleep30-21swapper/310:48:383
3862248992716,10cyclictest0-21swapper/009:55:010
3862248992515,9cyclictest94115-21runrttasks11:47:020
386224899249,9cyclictest4117071-21irqcore10:11:210
3862248992418,5cyclictest113550-21cat12:00:010
3862248992411,7cyclictest857-21apt-get10:56:170
386225099238,5cyclictest0-21swapper/212:16:142
3862250992320,1cyclictest0-21swapper/212:04:092
3862249992320,2cyclictest157317-21munin-run12:25:001
3862249992319,2cyclictest0-21swapper/108:00:011
386224899231,8cyclictest163384-21cut12:26:270
3862248992312,5cyclictest171ktimers/012:03:370
386224899230,5cyclictest4130410-21ssh10:16:310
386224899230,1cyclictest0-21swapper/009:13:050
386224899227,11cyclictest4090661-21grep09:56:190
386224899227,10cyclictest3883042-21aten2.4-expect07:26:150
386224899227,10cyclictest2025-21snmpd08:47:500
386224899227,10cyclictest181955-21sshd12:37:290
386224899224,12cyclictest171ktimers/010:01:490
386224899224,10cyclictest154468-21open_inodes12:21:230
386224899223,13cyclictest98592-1tr11:51:220
3862248992212,6cyclictest4167562-21kworker/u16:4+xprtiod11:16:240
386224899220,1cyclictest0-21swapper/009:30:340
3862249992119,1cyclictest0-21swapper/110:25:021
3862249992118,2cyclictest78572-21sendmail11:40:001
386224899217,9cyclictest4054522-21diskmemload09:36:010
386224899216,9cyclictest4153700-21cut10:31:220
386224899215,11cyclictest4191264-21switchtime10:51:270
386224899215,11cyclictest171ktimers/011:39:220
386224899215,10cyclictest4149108-21diskmemload10:28:310
386224899214,11cyclictest4159915-21aten_repower_fr10:36:170
386224899212,6cyclictest3924580-21switchtime07:56:270
386224899211,6cyclictest4178925-21grep10:46:200
3862248992116,4cyclictest3889126-21telnet07:31:140
3862248992116,4cyclictest3862247-21cyclictest08:30:010
3862248992116,4cyclictest1704-21rs:main0
3862248992115,5cyclictest131198-21latency_hist12:10:000
3862248992115,4cyclictest3986591-21cpuspeed_turbos08:51:140
386224899211,15cyclictest0-21swapper/011:08:070
3862248992110,6cyclictest4137480-21kthreadcore10:21:240
3862248992110,10cyclictest3870981-21aten2.4-expect07:16:150
3862250992017,1cyclictest0-21swapper/211:50:582
3862249992017,2cyclictest3868328-21munin-node07:15:021
3862249992015,3cyclictest4033337-21missed_timers09:21:231
3862249992015,3cyclictest1635-21dbus-daemon12:20:011
386224899209,6cyclictest170550irq/121-eno109:21:150
386224899206,9cyclictest34052-21diskmemload11:13:560
386224899206,9cyclictest16356-21diskmemload11:03:330
386224899206,8cyclictest4009298-21ptp4l09:06:260
386224899205,10cyclictest3962199-21aten2.4-expect08:31:180
386224899204,10cyclictest3968187-21aten2.4-expect08:36:140
3862248992015,4cyclictest69546-21grep11:35:000
3862248992014,5cyclictest3996484-21kthreadcore08:56:220
3862248992011,8cyclictest260-21systemd-journal11:22:130
386224899200,6cyclictest4109480-21tr10:06:250
386224899200,5cyclictest4072180-21aten2.4-expect09:46:140
386224899200,1cyclictest0-21swapper/009:26:260
2564091201,2phc2sys0-21swapper/307:06:213
3862250991917,1cyclictest0-21swapper/207:21:072
3862250991914,2cyclictest0-21swapper/210:16:312
3862249991917,1cyclictest0-21swapper/107:35:021
3862249991916,2cyclictest4169361-21fschecks_time10:41:291
3862249991916,2cyclictest3876587-21latency_hist07:20:001
386224899195,9cyclictest4025771-21diskmemload09:17:130
386224899194,9cyclictest3974268-21aten2.4-expect08:41:150
386224899194,9cyclictest3937765-21aten2.4-expect08:11:150
386224899191,4cyclictest3895966-21grep07:36:180
3862248991914,4cyclictest3916249-21kthreadcore07:51:230
3862248991913,5cyclictest82407-21kthreadcore11:41:230
3862248991913,5cyclictest3862247-21cyclictest08:21:240
3862248991913,5cyclictest3862247-21cyclictest08:21:240
3862248991912,5cyclictest0-21swapper/007:45:000
3862248991910,4cyclictest170550irq/121-eno112:16:150
2564091190,2phc2sys0-21swapper/309:10:323
386224999189,2cyclictest170550irq/121-eno107:26:151
3862249991816,1cyclictest69506-21cron11:35:001
3862249991814,3cyclictest98378-21kthreadcore11:51:231
3862249991814,2cyclictest159717-21kthreadcore12:26:231
3862249991813,3cyclictest4142292-21/usr/sbin/munin10:26:231
3862249991813,3cyclictest1635-21dbus-daemon10:50:021
3862249991812,4cyclictest116096-21kthreadcore12:01:211
386224899188,6cyclictest3943895-21aten2.4-expect08:16:350
386224899186,8cyclictest167086-21/usr/sbin/munin12:31:130
386224899184,9cyclictest3925639-21aten2.4-expect08:01:120
386224899184,10cyclictest3877158-21aten2.4-expect07:21:160
386224899183,10cyclictest3998476-21aten2.4-expect09:01:260
3862248991813,4cyclictest3863301-21gltestperf07:11:190
3862248991812,5cyclictest56102-21kthreadcore11:26:220
3862248991812,5cyclictest3934394-21kthreadcore08:06:230
3862248991812,5cyclictest3910218-21kthreadcore07:46:220
3862248991811,5cyclictest4064281-21head09:41:210
386224899181,12cyclictest133710-21cut12:11:220
2564091181,2phc2sys0-21swapper/309:29:193
2564091180,2phc2sys0-21swapper/312:09:233
386225099173,8cyclictest0-21swapper/208:20:012
3862250991714,1cyclictest0-21swapper/211:44:152
3862250991714,1cyclictest0-21swapper/210:08:382
3862250991714,1cyclictest0-21swapper/209:46:142
3862250991714,1cyclictest0-21swapper/209:25:302
3862250991714,1cyclictest0-21swapper/209:13:052
3862250991714,1cyclictest0-21swapper/208:01:122
3862250991713,2cyclictest0-21swapper/212:25:462
3862250991713,2cyclictest0-21swapper/210:35:362
3862250991712,2cyclictest0-21swapper/212:06:412
3862249991714,2cyclictest4024282-21cut09:16:221
3862249991714,2cyclictest1700-21systemd-logind08:35:011
3862249991714,2cyclictest1652-1atopacctd12:31:211
3862249991713,3cyclictest4040142-21kthreadcore09:26:271
3862249991713,2cyclictest30321-21kthreadcore11:11:261
3862249991712,3cyclictest83881-21kthreadcore11:41:231
3862249991712,3cyclictest47977-21kthreadcore11:21:231
3862248991712,4cyclictest0-21swapper/007:10:020
2564091170,2phc2sys0-21swapper/312:36:073
3862250991613,1cyclictest0-21swapper/210:58:092
3862250991613,1cyclictest0-21swapper/210:41:292
3862250991613,1cyclictest0-21swapper/209:51:142
3862250991613,1cyclictest0-21swapper/209:30:342
3862250991613,1cyclictest0-21swapper/208:51:142
3862250991612,2cyclictest0-21swapper/212:20:282
3862250991612,2cyclictest0-21swapper/209:57:132
3862249991613,2cyclictest3945071-21kthreadcore08:16:411
3862249991613,2cyclictest19297-21if_err_enp1s0.811:06:201
3862249991612,3cyclictest4075961-21kthreadcore09:46:211
3862249991612,3cyclictest10974-21kthreadcore11:01:241
3862249991612,2cyclictest4121232-21taskset10:11:271
386224999160,8cyclictest3907292-21cat07:45:011
2564091160,2phc2sys0-21swapper/312:02:303
386225099154,7cyclictest0-21swapper/209:20:012
386225099151,6cyclictest0-21swapper/210:30:012
3862250991513,1cyclictest0-21swapper/209:40:022
3862250991512,1cyclictest0-21swapper/212:36:222
3862250991512,1cyclictest0-21swapper/210:46:202
3862250991512,1cyclictest0-21swapper/207:35:012
3862250991512,1cyclictest0-21swapper/207:30:012
3862250991511,2cyclictest0-21swapper/211:30:212
3862250991511,2cyclictest0-21swapper/209:21:222
386224999153,4cyclictest104685-21kworker/u16:2+rpciod11:56:201
3862249991512,2cyclictest58487-21timerandwakeup11:26:281
3862249991512,2cyclictest4167553-21systemd-run10:40:011
3862249991512,2cyclictest4153779-21kthreadcore10:31:221
3862249991512,2cyclictest4108015-21fschecks_count10:06:221
3862249991512,2cyclictest4088659-21/usr/sbin/munin09:55:011
3862249991512,2cyclictest3926377-21idleruntime08:01:161
3862249991512,2cyclictest131114-21latency_hist12:10:001
3862249991512,2cyclictest0-21swapper/111:20:011
3862249991511,3cyclictest4090675-21gltestperf09:56:191
3862249991511,3cyclictest3907777-21cpuspeed_turbos07:46:161
3862249991511,3cyclictest3898964-21kthreadcore07:36:221
3862249991511,3cyclictest177180-21kthreadcore12:36:221
2564091152,3phc2sys0-21swapper/309:01:263
2564091151,1phc2sys0-21swapper/307:41:163
2564091150,2phc2sys0-21swapper/311:42:393
2564091150,2phc2sys0-21swapper/311:17:363
2564091150,2phc2sys0-21swapper/310:22:533
2564091150,2phc2sys0-21swapper/310:14:513
386225099148,3cyclictest0-21swapper/211:06:152
386225099147,4cyclictest3938468-21chrt08:11:192
3862250991412,1cyclictest0-21swapper/211:01:172
3862250991412,1cyclictest0-21swapper/210:51:232
3862250991412,1cyclictest0-21swapper/208:00:022
3862250991412,1cyclictest0-21swapper/207:35:032
3862250991411,1cyclictest0-21swapper/212:31:232
3862250991411,1cyclictest0-21swapper/212:10:452
3862250991411,1cyclictest0-21swapper/211:36:182
3862250991411,1cyclictest0-21swapper/211:25:052
3862250991411,1cyclictest0-21swapper/210:31:222
3862250991411,1cyclictest0-21swapper/209:10:012
3862250991411,1cyclictest0-21swapper/208:45:012
3862250991411,1cyclictest0-21swapper/208:21:152
3862250991411,1cyclictest0-21swapper/208:21:152
3862250991411,1cyclictest0-21swapper/208:06:162
3862250991410,1cyclictest0-21swapper/211:16:162
386225099140,12cyclictest0-21swapper/210:10:032
386224999146,3cyclictest170550irq/121-eno107:51:191
386224999143,4cyclictest139978-21cat12:15:011
386224999142,4cyclictest3974269-21head08:41:151
386224999141,8cyclictest3882689-21unin-run07:25:011
3862249991411,2cyclictest4011898-21grep09:11:181
3862249991411,2cyclictest3986349-21head08:51:131
3862249991411,2cyclictest3951079-21kthreadcore08:21:241
3862249991411,2cyclictest3951079-21kthreadcore08:21:241
3862249991411,2cyclictest3868328-21munin-node10:16:011
3862249991411,2cyclictest3850140-21kworker/u16:2-rpciod09:31:221
3862249991411,2cyclictest0-21swapper/110:56:171
3862249991410,3cyclictest4187378-21irqrtprio10:51:211
3862249991410,3cyclictest3862247-21cyclictest08:15:011
386224999140,13cyclictest3973771-21systemctl08:40:001
2564091141,3phc2sys0-21swapper/309:36:133
2564091141,2phc2sys0-21swapper/309:22:313
2564091140,2phc2sys0-21swapper/311:29:463
2564091140,2phc2sys0-21swapper/310:31:203
2564091140,2phc2sys0-21swapper/309:31:563
3862250991311,1cyclictest0-21swapper/212:00:012
3862250991311,1cyclictest0-21swapper/210:21:172
3862250991311,1cyclictest0-21swapper/210:01:152
3862250991311,1cyclictest0-21swapper/208:56:262
3862250991311,1cyclictest0-21swapper/207:40:042
3862250991310,1cyclictest0-21swapper/211:45:552
3862250991310,1cyclictest0-21swapper/211:21:172
3862250991310,1cyclictest0-21swapper/209:41:212
3862250991310,1cyclictest0-21swapper/209:05:012
3862250991310,1cyclictest0-21swapper/208:46:162
3862250991310,1cyclictest0-21swapper/208:26:172
3862250991310,1cyclictest0-21swapper/207:46:152
3862250991310,1cyclictest0-21swapper/207:11:242
386224999139,3cyclictest4066963-21kthreadcore09:41:251
386224999139,3cyclictest3932941-21kthreadcore08:06:221
386224999136,5cyclictest1-21systemd08:30:011
386224999134,3cyclictest3980893-21cut08:46:181
3862249991310,2cyclictest89792-21kthreadcore11:46:191
3862249991310,2cyclictest4100525-21kthreadcore10:01:221
3862249991310,2cyclictest4009209-21pmu-power09:06:251
3862249991310,2cyclictest3999674-21kernelversion09:01:321
3862249991310,2cyclictest3995080-21kthreadcore08:56:221
2564091131,3phc2sys0-21swapper/311:51:153
2564091131,2phc2sys0-21swapper/308:36:143
2564091131,2phc2sys0-21swapper/307:31:143
2564091130,3phc2sys0-21swapper/310:16:123
2564091130,3phc2sys0-21swapper/308:21:153
2564091130,3phc2sys0-21swapper/308:21:153
2564091130,2phc2sys0-21swapper/310:08:433
2564091130,2phc2sys0-21swapper/310:04:083
2564091130,2phc2sys0-21swapper/309:51:123
2564091130,1phc2sys0-21swapper/312:28:333
2564091130,1phc2sys0-21swapper/307:19:163
386225099129,1cyclictest0-21swapper/208:36:202
3862250991210,1cyclictest0-21swapper/211:15:012
3862250991210,1cyclictest0-21swapper/208:35:012
3862250991210,1cyclictest0-21swapper/207:51:182
3862250991210,1cyclictest0-21swapper/207:15:022
386224999129,2cyclictest4056090-21kthreadcore09:36:211
386224999129,2cyclictest3862421-21sh07:10:021
2564091123,2phc2sys0-21swapper/308:26:243
2564091122,2phc2sys0-21swapper/309:17:133
2564091120,4phc2sys0-21swapper/311:49:563
2564091120,4phc2sys0-21swapper/310:26:273
2564091120,2phc2sys0-21swapper/310:39:263
2564091120,2phc2sys0-21swapper/308:00:073
2564091120,1phc2sys0-21swapper/309:58:413
2564091120,1phc2sys0-21swapper/308:57:143
386225099119,1cyclictest0-21swapper/207:10:022
2564091113,2phc2sys0-21swapper/308:16:423
2564091111,2phc2sys0-21swapper/311:06:153
2564091111,2phc2sys0-21swapper/309:41:263
2564091111,2phc2sys0-21swapper/307:30:023
2564091111,2phc2sys0-21swapper/307:11:143
2564091110,3phc2sys0-21swapper/312:31:133
2564091110,3phc2sys0-21swapper/311:13:043
2564091110,2phc2sys0-21swapper/312:15:443
2564091110,2phc2sys0-21swapper/311:56:123
2564091110,2phc2sys0-21swapper/311:32:243
2564091110,1phc2sys0-21swapper/311:20:473
2564091110,1phc2sys0-21swapper/308:05:043
2564091110,1phc2sys0-21swapper/307:53:023
2564091110,1phc2sys0-21swapper/307:39:483
2564091101,2phc2sys0-21swapper/312:10:073
2564091101,2phc2sys0-21swapper/311:01:303
2564091101,2phc2sys0-21swapper/310:56:253
2564091100,3phc2sys0-21swapper/310:40:143
2564091100,2phc2sys0-21swapper/312:21:013
2564091100,2phc2sys0-21swapper/311:35:203
2564091100,2phc2sys0-21swapper/310:51:483
2564091100,2phc2sys0-21swapper/308:46:163
2564091100,2phc2sys0-21swapper/307:56:193
256409191,2phc2sys0-21swapper/309:45:473
256409191,2phc2sys0-21swapper/308:41:143
256409190,2phc2sys0-21swapper/309:06:153
256409190,2phc2sys0-21swapper/308:55:013
256409190,2phc2sys0-21swapper/308:31:213
256409190,2phc2sys0-21swapper/308:11:173
256409190,2phc2sys0-21swapper/307:46:173
256409190,2phc2sys0-21swapper/307:21:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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