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2026-05-30 - 13:30
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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 rackdslot1.osadl.org (updated Sat May 30, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
913921750,6sleep0895699cyclictest21:30:110
895799802,76cyclictest28642-21kworker/1:219:15:291
8956996629,6cyclictest9-21ksoftirqd/022:30:190
8956996532,5cyclictest9-21ksoftirqd/023:30:260
8958996429,4cyclictest33-21ksoftirqd/222:50:252
895799640,62cyclictest28642-21kworker/1:222:55:291
8956996431,5cyclictest9-21ksoftirqd/021:05:010
8956996430,6cyclictest9-21ksoftirqd/023:25:260
8956996328,9cyclictest9-21ksoftirqd/019:55:000
8956996231,6cyclictest9-21ksoftirqd/020:30:250
8956996230,5cyclictest9-21ksoftirqd/022:00:150
8956996227,6cyclictest9-21ksoftirqd/021:10:150
8958996126,3cyclictest33-21ksoftirqd/222:30:142
8956996131,7cyclictest9-21ksoftirqd/020:20:180
8956996129,8cyclictest9-21ksoftirqd/022:00:000
8956996129,5cyclictest9-21ksoftirqd/021:35:280
8956996127,6cyclictest9-21ksoftirqd/020:45:180
8956996125,5cyclictest9-21ksoftirqd/023:05:170
8956996123,3cyclictest9-21ksoftirqd/021:53:020
134491610,4ptp4l0-21swapper/023:00:220
895899602,6cyclictest33-21ksoftirqd/220:39:592
8957996015,43cyclictest28642-21kworker/1:219:42:091
8956996031,10cyclictest9-21ksoftirqd/000:35:200
8956996028,5cyclictest9-21ksoftirqd/022:35:160
8956996028,5cyclictest9-21ksoftirqd/021:05:280
8956996027,7cyclictest9-21ksoftirqd/021:15:180
8956996026,6cyclictest9-21ksoftirqd/019:25:170
8956996026,6cyclictest9-21ksoftirqd/000:00:010
134491600,25ptp4l33-21ksoftirqd/221:15:162
895899597,6cyclictest0-21swapper/220:55:232
8958995923,7cyclictest33-21ksoftirqd/219:55:162
8956995927,5cyclictest9-21ksoftirqd/022:05:270
8956995925,6cyclictest9-21ksoftirqd/023:20:260
8956995925,5cyclictest9-21ksoftirqd/020:25:270
8956995921,6cyclictest9-21ksoftirqd/000:30:110
8956995829,6cyclictest9-21ksoftirqd/000:20:230
8956995824,7cyclictest9-21ksoftirqd/022:25:160
8956995824,5cyclictest9-21ksoftirqd/019:20:170
8956995823,5cyclictest9-21ksoftirqd/021:45:230
134491580,4ptp4l0-21swapper/222:10:012
8956995730,3cyclictest9-21ksoftirqd/019:15:260
8956995728,7cyclictest9-21ksoftirqd/022:40:170
8956995728,6cyclictest9-21ksoftirqd/021:25:140
8956995727,7cyclictest9-21ksoftirqd/019:30:180
134491570,4ptp4l0-21swapper/120:35:281
134491570,4ptp4l0-21swapper/023:46:410
134491570,3ptp4l0-21swapper/020:51:540
895899562,30cyclictest0-21swapper/219:18:342
8956995621,6cyclictest9-21ksoftirqd/020:55:250
134491560,4ptp4l0-21swapper/120:17:031
134491560,3ptp4l0-21swapper/019:55:330
134491560,11ptp4l0-21swapper/123:30:231
895899555,7cyclictest0-21swapper/220:05:242
895899554,6cyclictest0-21swapper/200:20:232
895899550,6cyclictest13138-21unixbench_multi20:25:272
895699555,6cyclictest9-21ksoftirqd/019:45:010
895899545,7cyclictest0-21swapper/223:10:232
895899543,7cyclictest0-21swapper/200:15:252
895899543,7cyclictest0-21swapper/200:15:252
8956995421,2cyclictest9-21ksoftirqd/022:18:230
134491540,3ptp4l0-21swapper/119:20:181
895899538,11cyclictest0-21swapper/223:50:192
895899534,6cyclictest0-21swapper/220:50:242
895899534,12cyclictest0-21swapper/222:40:152
895899534,11cyclictest0-21swapper/219:35:222
895899533,7cyclictest0-21swapper/220:45:272
895899533,6cyclictest0-21swapper/223:25:222
895899533,12cyclictest0-21swapper/219:30:142
895899532,33cyclictest0-21swapper/200:38:322
895899530,8cyclictest33-21ksoftirqd/222:55:122
895699535,5cyclictest9-21ksoftirqd/023:35:250
8956995317,3cyclictest9-21ksoftirqd/020:14:490
895699531,5cyclictest9-21ksoftirqd/019:40:000
134491530,4ptp4l0-21swapper/122:09:131
895899525,6cyclictest0-21swapper/221:40:242
895899525,11cyclictest0-21swapper/221:35:152
895899524,6cyclictest0-21swapper/221:20:262
895899524,6cyclictest0-21swapper/219:50:202
895899524,6cyclictest0-21swapper/219:41:162
895899524,12cyclictest0-21swapper/200:25:312
895899524,11cyclictest0-21swapper/221:30:242
895899523,6cyclictest0-21swapper/223:30:132
895899523,6cyclictest0-21swapper/222:25:112
895899522,5cyclictest33-21ksoftirqd/223:15:212
895799523,47cyclictest29322-21kworker/1:000:15:481
895799523,47cyclictest29322-21kworker/1:000:15:481
895699524,7cyclictest9-21ksoftirqd/021:25:000
8956995220,3cyclictest9-21ksoftirqd/023:43:590
134491520,4ptp4l0-21swapper/319:42:493
134491520,3ptp4l0-21swapper/321:45:143
134491520,12ptp4l0-21swapper/122:13:011
895899517,11cyclictest0-21swapper/200:30:222
895899516,6cyclictest0-21swapper/221:50:162
895899514,11cyclictest0-21swapper/222:00:142
895899514,11cyclictest0-21swapper/220:40:202
895899511,6cyclictest18148-21latency_hist21:50:012
895899510,8cyclictest33-21ksoftirqd/223:35:132
895799512,47cyclictest28642-21kworker/1:221:13:291
8956995123,10cyclictest9-21ksoftirqd/023:15:000
8956995120,3cyclictest9-21ksoftirqd/020:01:330
8956995119,5cyclictest9-21ksoftirqd/000:00:430
134491510,4ptp4l0-21swapper/319:45:253
134491510,11ptp4l6994-21fschecks_time19:05:141
895899503,7cyclictest0-21swapper/222:20:172
895899503,6cyclictest0-21swapper/200:05:282
895899503,11cyclictest0-21swapper/222:15:182
895699505,2cyclictest9-21ksoftirqd/000:30:010
895699504,8cyclictest9-21ksoftirqd/022:55:110
895699503,2cyclictest121rcu_preempt19:10:130
8956995022,3cyclictest9-21ksoftirqd/022:45:480
8956995020,3cyclictest9-21ksoftirqd/000:05:510
8956995018,3cyclictest9-21ksoftirqd/022:24:500
8956995017,8cyclictest9-21ksoftirqd/022:53:020
895699501,6cyclictest9-21ksoftirqd/021:40:190
134491500,6ptp4l0-21swapper/019:05:010
134491500,4ptp4l0-21swapper/300:22:113
895899495,7cyclictest0-21swapper/200:00:042
895899493,10cyclictest0-21swapper/221:10:162
895899492,7cyclictest0-21swapper/223:00:232
895899492,7cyclictest0-21swapper/219:25:202
895699494,5cyclictest9-21ksoftirqd/020:35:230
895699494,5cyclictest9-21ksoftirqd/020:05:210
895699491,10cyclictest9-21ksoftirqd/000:10:220
895699490,2cyclictest121rcu_preempt19:45:180
134491490,3ptp4l0-21swapper/319:34:043
8958994844,2cyclictest311rcuc/223:55:232
895899482,7cyclictest0-21swapper/221:25:212
895799482,44cyclictest28642-21kworker/1:222:51:291
895699482,11cyclictest0-21swapper/000:15:200
895699482,11cyclictest0-21swapper/000:15:200
895699481,6cyclictest9-21ksoftirqd/023:15:190
134491480,12ptp4l0-21swapper/322:15:013
895899475,6cyclictest0-21swapper/222:39:512
895899473,6cyclictest33-21ksoftirqd/220:30:192
8958994733,5cyclictest33-21ksoftirqd/221:00:142
895899473,11cyclictest0-21swapper/219:10:242
895899472,8cyclictest33-21ksoftirqd/219:20:232
895899472,6cyclictest0-21swapper/222:10:242
895899471,6cyclictest33-21ksoftirqd/220:10:242
895899470,6cyclictest0-21swapper/223:05:232
895699473,7cyclictest9-21ksoftirqd/020:40:150
895699473,3cyclictest121rcu_preempt20:15:190
134491470,4ptp4l0-21swapper/319:22:113
895999461,2cyclictest121rcu_preempt23:23:593
895999461,2cyclictest121rcu_preempt22:19:593
895899465,7cyclictest0-21swapper/221:55:212
895899465,6cyclictest0-21swapper/220:22:482
895899465,6cyclictest0-21swapper/219:45:342
895899462,6cyclictest0-21swapper/221:05:592
895899462,4cyclictest0-21swapper/223:45:232
895699460,3cyclictest121rcu_preempt23:50:170
134491460,8ptp4l0-21swapper/119:35:161
134491460,3ptp4l0-21swapper/122:19:401
895899452,5cyclictest33-21ksoftirqd/223:40:252
895699452,3cyclictest9-21ksoftirqd/022:10:190
8959994439,3cyclictest41-21ksoftirqd/323:20:013
895899441,9cyclictest992-21mailstats20:00:232
134491440,4ptp4l6983-21apt-get22:35:131
134491440,1ptp4l0-21swapper/120:04:151
8959994338,3cyclictest41-21ksoftirqd/321:30:003
895999430,5cyclictest134491ptp4l20:10:013
134491430,5ptp4l2318-21gnome-shell20:07:591
8959994236,4cyclictest41-21ksoftirqd/320:25:003
895999421,3cyclictest121rcu_preempt00:39:463
8958994236,4cyclictest33-21ksoftirqd/220:20:002
895899423,5cyclictest0-21swapper/200:12:552
895899422,29cyclictest0-21swapper/223:22:142
46198420,10rtkit-daemon0-21swapper/319:17:063
134691420,10getstats0-21swapper/323:49:113
134691420,10getstats0-21swapper/323:30:013
134691420,10getstats0-21swapper/323:06:163
134691420,10getstats0-21swapper/321:42:393
134691420,10getstats0-21swapper/320:47:523
134491420,4ptp4l27795-21df_inode19:50:141
134491420,4ptp4l2744-21apt-get23:35:131
8959994136,3cyclictest41-21ksoftirqd/323:40:003
134691410,10getstats0-21swapper/322:51:113
134691410,10getstats0-21swapper/320:26:153
134691410,10getstats0-21swapper/320:12:393
134491410,8ptp4l25-21ksoftirqd/100:26:231
134491410,5ptp4l0-21swapper/322:30:213
134491410,5ptp4l0-21swapper/320:00:133
134491410,5ptp4l0-21swapper/300:10:143
134491410,4ptp4l8986-21apt-get19:10:111
134491410,4ptp4l7257-21hddtemp_smartct21:25:161
134491410,4ptp4l25913-21iostat20:55:181
134491410,4ptp4l15447-21ntp_states00:00:231
134491410,4ptp4l1032-21/usr/sbin/munin22:20:221
134491410,4ptp4l10247-21ntp_states21:30:211
134491410,4ptp4l0-21swapper/321:39:523
134491410,4ptp4l0-21swapper/123:50:211
134491410,4ptp4l0-21swapper/120:46:071
134491410,3ptp4l2318-21gnome-shell00:30:581
134491410,3ptp4l22156-21ls19:35:273
134491410,3ptp4l18458-21apt-get20:40:131
134491410,3ptp4l0-21swapper/321:21:173
134491410,3ptp4l0-21swapper/123:00:241
134491410,2ptp4l121rcu_preempt21:05:191
8959994035,3cyclictest41-21ksoftirqd/323:00:273
8957994020,3cyclictest6591-21turbostat21:25:001
134691400,9getstats0-21swapper/323:30:453
134691400,9getstats0-21swapper/322:29:423
134691400,9getstats0-21swapper/320:43:003
134691400,10getstats0-21swapper/322:36:203
134491400,8ptp4l0-21swapper/120:27:271
134491400,5ptp4l0-21swapper/121:45:181
134491400,4ptp4l5138-21iostat20:10:171
134491400,4ptp4l23619-21iostat_ios20:50:171
134491400,4ptp4l19765-21hddtemp_smartct00:10:181
134491400,4ptp4l0-21swapper/120:34:121
134491400,4ptp4l0-21swapper/100:39:581
134491400,3ptp4l31125-21irqstats23:25:191
134491400,3ptp4l3059-21irqstats21:15:181
134491400,3ptp4l21438-21iostat_ios23:05:211
8959993935,2cyclictest41-21ksoftirqd/323:45:003
8959993933,3cyclictest41-21ksoftirqd/320:55:133
134691390,9getstats0-21swapper/320:53:173
134491390,6ptp4l0-21swapper/320:15:403
134491390,5ptp4l0-21swapper/123:15:261
134491390,4ptp4l16055-21cat19:25:111
134491390,4ptp4l0-21swapper/323:50:113
134491390,4ptp4l0-21swapper/321:10:253
134491390,4ptp4l0-21swapper/321:05:033
134491390,4ptp4l0-21swapper/320:30:193
134491390,4ptp4l0-21swapper/300:19:193
134491390,4ptp4l0-21swapper/300:19:193
134491390,4ptp4l0-21swapper/222:48:512
134491390,4ptp4l0-21swapper/123:44:521
134491390,4ptp4l0-21swapper/122:43:221
134491390,4ptp4l0-21swapper/122:00:151
134491390,4ptp4l0-21swapper/121:35:051
134491390,4ptp4l0-21swapper/119:33:571
134491390,3ptp4l27981-21apt-get23:20:111
134491390,3ptp4l21257-21iostat21:55:161
134491390,3ptp4l0-21swapper/119:56:411
134491390,3ptp4l0-21swapper/119:47:491
8959993833,3cyclictest41-21ksoftirqd/321:30:163
8959993833,3cyclictest41-21ksoftirqd/321:05:013
134491380,4ptp4l18402-21wc21:50:121
134491380,4ptp4l0-21swapper/322:20:213
134491380,4ptp4l0-21swapper/322:00:273
134491380,4ptp4l0-21swapper/321:15:173
134491380,4ptp4l0-21swapper/319:14:163
134491380,4ptp4l0-21swapper/300:25:203
134491380,4ptp4l0-21swapper/122:45:141
134491380,4ptp4l0-21swapper/121:42:031
134491380,4ptp4l0-21swapper/121:00:131
134491380,4ptp4l0-21swapper/120:20:071
134491380,4ptp4l0-21swapper/100:23:011
134491380,3ptp4l4695-21wc22:30:111
134491380,3ptp4l12408-21cat23:55:171
134491380,3ptp4l0-21swapper/323:10:163
134491380,3ptp4l0-21swapper/322:05:193
134491380,3ptp4l0-21swapper/300:33:033
134491380,3ptp4l0-21swapper/100:08:501
8959993733,3cyclictest41-21ksoftirqd/320:35:183
8959993733,2cyclictest41-21ksoftirqd/321:59:593
8959993732,3cyclictest41-21ksoftirqd/322:50:003
8959993732,3cyclictest41-21ksoftirqd/322:40:183
8959993732,2cyclictest41-21ksoftirqd/300:05:193
134491370,4ptp4l0-21swapper/122:25:411
134491370,3ptp4l0-21swapper/319:26:333
134491370,3ptp4l0-21swapper/123:45:031
134491370,3ptp4l0-21swapper/123:10:191
134491360,4ptp4l0-21swapper/321:51:113
134491360,4ptp4l0-21swapper/319:51:393
134491360,3ptp4l0-21swapper/319:55:153
8959993532,2cyclictest41-21ksoftirqd/300:00:043
8959993329,3cyclictest41-21ksoftirqd/322:55:173
8959993328,4cyclictest41-21ksoftirqd/323:55:183
46198200,5rtkit-daemon0-21swapper/219:08:082
71822152,8sleep37462-21sed19:05:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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