You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-12 - 07:38
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 rackdslot1.osadl.org (updated Wed Nov 12, 2025 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2980321870,6sleep01301799cyclictest22:00:300
13017996428,6cyclictest9-21ksoftirqd/021:40:000
13019996312,48cyclictest25026-21fschecks_count19:35:192
13019996312,48cyclictest25026-21fschecks_count19:35:192
13017996129,7cyclictest9-21ksoftirqd/019:40:000
13017996129,7cyclictest9-21ksoftirqd/019:40:000
2847191600,3ptp4l0-21swapper/021:45:150
1301999609,11cyclictest3213-21wc19:55:272
13019996011,11cyclictest29490-21chrt20:53:122
83002590,3sleep00-21swapper/021:15:280
2847191590,4ptp4l31486-21diskstats00:25:173
2847191590,4ptp4l0-21swapper/219:34:312
2847191590,4ptp4l0-21swapper/023:45:230
2847191590,4ptp4l0-21swapper/000:06:110
2847191590,3ptp4l0-21swapper/119:45:281
2847191590,3ptp4l0-21swapper/100:25:201
1301999598,11cyclictest30758-21df_abs22:05:182
13019995913,13cyclictest30861-21taskset00:24:222
13019995911,46cyclictest0-21swapper/222:15:262
13019995911,46cyclictest0-21swapper/222:15:252
13017995929,4cyclictest9-21ksoftirqd/020:40:220
2847191580,4ptp4l0-21swapper/319:14:373
2847191580,4ptp4l0-21swapper/219:20:252
2847191580,4ptp4l0-21swapper/022:22:560
2847191580,3ptp4l0-21swapper/120:27:391
1301999588,14cyclictest0-21swapper/200:00:242
13017995827,4cyclictest9-21ksoftirqd/020:55:000
2847191570,4ptp4l0-21swapper/122:47:331
2847191570,4ptp4l0-21swapper/120:36:201
1301999578,10cyclictest18863-21sed21:40:152
1301999576,11cyclictest8001-21phc2sys-jitter21:15:252
13017995726,6cyclictest9-21ksoftirqd/000:15:200
2847191560,8ptp4l25-21ksoftirqd/120:48:541
2847191560,4ptp4l0-21swapper/020:16:410
1301999569,15cyclictest10854-21timerandwakeup21:20:282
1301999568,10cyclictest32670-21latency_hist23:20:002
1301999566,13cyclictest1069-21cpu00:30:152
13019995610,10cyclictest13694-21mailstats23:45:272
13017995627,3cyclictest9-21ksoftirqd/022:20:010
13017995627,3cyclictest9-21ksoftirqd/022:20:000
13017995626,5cyclictest9-21ksoftirqd/023:35:140
13017995625,7cyclictest9-21ksoftirqd/000:30:250
13017995625,6cyclictest9-21ksoftirqd/022:33:140
13017995623,6cyclictest9-21ksoftirqd/022:10:190
13017995620,5cyclictest9-21ksoftirqd/023:55:140
2847191550,4ptp4l0-21swapper/323:14:543
2847191550,4ptp4l0-21swapper/322:00:573
2847191550,3ptp4l0-21swapper/122:20:201
2847191550,11ptp4l0-21swapper/100:20:171
1301999558,45cyclictest0-21swapper/200:15:292
13019995512,11cyclictest13762-21runrttasks22:36:122
13017995524,5cyclictest9-21ksoftirqd/021:50:240
13017995522,5cyclictest9-21ksoftirqd/023:30:190
13017995522,5cyclictest9-21ksoftirqd/021:05:280
13017995521,6cyclictest9-21ksoftirqd/022:35:270
2847191540,5ptp4l0-21swapper/219:06:392
2847191540,3ptp4l0-21swapper/223:55:262
2847191540,3ptp4l0-21swapper/100:18:351
224542540,4sleep20-21swapper/200:05:202
13019995415,10cyclictest27852-21taskset23:07:542
1301799545,8cyclictest9-21ksoftirqd/019:29:590
13017995428,6cyclictest9-21ksoftirqd/000:35:230
2847191530,4ptp4l0-21swapper/119:42:411
2847191530,4ptp4l0-21swapper/020:35:140
1301999539,41cyclictest20859-21/usr/sbin/munin19:25:182
1301999537,9cyclictest0-21swapper/220:15:142
1301999537,16cyclictest13151-21grep19:10:162
13017995325,3cyclictest9-21ksoftirqd/020:00:230
13017995324,8cyclictest9-21ksoftirqd/023:15:000
13017995322,5cyclictest9-21ksoftirqd/019:45:310
13017995321,11cyclictest9-21ksoftirqd/021:25:180
13017995318,7cyclictest9-21ksoftirqd/020:55:190
293042520,4sleep20-21swapper/222:00:242
2847191520,4ptp4l0-21swapper/122:26:401
2847191520,4ptp4l0-21swapper/021:33:420
2847191520,3ptp4l0-21swapper/119:18:341
2847191520,2ptp4l0-21swapper/122:02:131
13017995222,5cyclictest9-21ksoftirqd/023:40:250
13017995222,3cyclictest9-21ksoftirqd/022:50:200
2847191510,3ptp4l0-21swapper/120:44:211
13019995112,10cyclictest17915-21taskset20:28:582
13017995126,3cyclictest9-21ksoftirqd/022:40:250
13017995123,5cyclictest9-21ksoftirqd/021:10:190
2847191500,3ptp4l0-21swapper/321:41:093
1301999509,8cyclictest15358-21apt-get19:15:142
1301999507,40cyclictest0-21swapper/221:50:192
13019995010,11cyclictest271952sleep220:48:262
13017995019,5cyclictest9-21ksoftirqd/023:20:000
13017995018,5cyclictest9-21ksoftirqd/020:45:290
13017995015,5cyclictest9-21ksoftirqd/019:30:240
13017995014,5cyclictest9-21ksoftirqd/021:00:150
2847191490,9ptp4l241ktimersoftd/119:35:191
2847191490,9ptp4l241ktimersoftd/119:35:191
2847191490,9ptp4l10670-21apt-get19:05:120
2847191490,4ptp4l0-21swapper/322:15:263
2847191490,4ptp4l0-21swapper/322:15:263
2847191490,3ptp4l25-21ksoftirqd/100:36:361
2847191490,3ptp4l0-21swapper/323:44:383
2847191490,3ptp4l0-21swapper/321:55:413
2847191490,3ptp4l0-21swapper/319:50:363
2847191490,3ptp4l0-21swapper/119:29:231
13019994914,32cyclictest9404-21users23:35:292
1301799495,5cyclictest9-21ksoftirqd/000:25:010
1301799493,9cyclictest9-21ksoftirqd/021:55:200
13017994919,3cyclictest9-21ksoftirqd/000:12:420
13017994918,6cyclictest9-21ksoftirqd/019:55:000
13017994918,3cyclictest9-21ksoftirqd/019:56:230
13017994917,6cyclictest9-21ksoftirqd/023:20:220
13017994916,6cyclictest9-21ksoftirqd/022:58:060
13017994916,5cyclictest9-21ksoftirqd/020:10:290
13017994916,5cyclictest9-21ksoftirqd/020:10:290
2847191480,12ptp4l1293-21snmpd19:05:193
1301999489,9cyclictest22968-21grep20:40:202
1301799483,6cyclictest121rcu_preempt22:08:080
1301799483,3cyclictest121rcu_preempt22:49:550
13017994825,4cyclictest9-21ksoftirqd/019:15:010
13017994818,2cyclictest9-21ksoftirqd/021:40:020
13017994817,3cyclictest9-21ksoftirqd/000:26:100
13017994815,8cyclictest9-21ksoftirqd/020:30:220
2847191470,3ptp4l0-21swapper/100:31:371
1301999477,37cyclictest16729-21hddtemp_smartct21:35:202
13019994711,8cyclictest5394-21diskstats22:20:172
1301799476,5cyclictest9-21ksoftirqd/023:50:220
1301799475,5cyclictest9-21ksoftirqd/021:25:000
1301799474,5cyclictest9-21ksoftirqd/023:30:000
13017994714,5cyclictest9-21ksoftirqd/019:40:150
2847191460,9ptp4l0-21swapper/221:56:272
2847191460,4ptp4l18962-21apt-get22:50:121
2847191460,4ptp4l0-21swapper/323:51:093
1301999467,8cyclictest22769-21ssh22:55:272
1301999466,8cyclictest5439-21ls21:10:202
1301999466,37cyclictest0-21swapper/200:35:272
1301799465,7cyclictest9-21ksoftirqd/020:05:200
1301799465,6cyclictest9-21ksoftirqd/023:05:200
13017994619,6cyclictest9-21ksoftirqd/000:00:150
2847191450,9ptp4l0-21swapper/221:26:362
2847191450,7ptp4l0-21swapper/120:03:261
2847191450,5ptp4l0-21swapper/223:00:252
2847191450,5ptp4l0-21swapper/119:09:071
2847191450,4ptp4l0-21swapper/323:31:103
2847191450,3ptp4l0-21swapper/121:00:201
2847191450,3ptp4l0-21swapper/100:07:221
1301999459,7cyclictest28183-21phc2sys19:40:252
1301999459,15cyclictest0-21swapper/223:10:582
1301999457,36cyclictest32063-21cat21:00:012
13017994520,3cyclictest9-21ksoftirqd/022:29:130
2847191440,9ptp4l0-21swapper/221:33:262
2847191440,9ptp4l0-21swapper/220:08:532
2847191440,4ptp4l401ktimersoftd/321:20:193
2847191440,4ptp4l0-21swapper/123:15:281
2847191440,10ptp4l0-21swapper/200:13:062
13019994414,10cyclictest31446-21taskset19:48:022
13019994412,10cyclictest9284-21taskset22:28:092
1301799445,6cyclictest9-21ksoftirqd/020:25:260
1301799443,5cyclictest9-21ksoftirqd/020:25:000
1301799443,4cyclictest13410-21grep19:10:180
1301799441,8cyclictest121rcu_preempt23:03:040
2847191430,9ptp4l0-21swapper/220:40:012
2847191430,5ptp4l0-21swapper/220:33:512
2847191430,4ptp4l2897-21apt-get23:25:143
2847191430,4ptp4l1788-21apt-get19:55:141
2847191430,4ptp4l14418-21hddtemp_smartct21:30:181
2847191430,3ptp4l0-21swapper/319:49:213
2847191430,3ptp4l0-21swapper/121:27:491
1301799431,2cyclictest121rcu_preempt19:20:190
2847191420,7ptp4l310-21dbus-daemon19:50:261
2847191420,5ptp4l9668-21diskstats21:20:171
2847191420,5ptp4l0-21swapper/300:35:223
2847191420,4ptp4l3044-21irqstats21:05:241
2847191420,4ptp4l25248-21/usr/sbin/munin20:45:243
2847191420,4ptp4l16994-21apt-get23:55:123
2847191420,4ptp4l16292-21apt-get21:35:161
2847191420,4ptp4l0-21swapper/322:07:303
2847191420,4ptp4l0-21swapper/223:53:122
2847191420,4ptp4l0-21swapper/123:55:211
2847191420,4ptp4l0-21swapper/123:24:021
2847191420,4ptp4l0-21swapper/122:08:531
2847191420,4ptp4l0-21swapper/100:11:521
2847191420,3ptp4l7633-21memory20:05:231
2847191420,3ptp4l25606-21apt-get21:55:121
2847191420,3ptp4l12805-21ls20:15:281
1301999428,8cyclictest15772-21ls22:40:262
1301999424,16cyclictest0-21swapper/200:25:262
13019994210,29cyclictest10819-21ntp_states22:30:242
2847191410,5ptp4l0-21swapper/300:00:163
2847191410,5ptp4l0-21swapper/223:34:192
2847191410,4ptp4l22231-21meminfo22:55:201
2847191410,4ptp4l19277-21ls20:30:221
2847191410,4ptp4l15466-21ntp_states22:40:221
2847191410,4ptp4l12969-21meminfo22:35:231
2847191410,4ptp4l0-21swapper/322:42:443
2847191410,4ptp4l0-21swapper/320:35:263
2847191410,4ptp4l0-21swapper/320:15:203
2847191410,4ptp4l0-21swapper/223:40:452
2847191410,4ptp4l0-21swapper/221:00:242
2847191410,4ptp4l0-21swapper/219:53:342
2847191410,4ptp4l0-21swapper/123:01:381
2847191410,4ptp4l0-21swapper/121:54:401
2847191410,3ptp4l8982-21apt-get20:10:131
2847191410,3ptp4l8982-21apt-get20:10:131
2847191410,3ptp4l14685-21strings20:20:252
2847191400,5ptp4l5853-21hddtemp_smartct23:30:171
2847191400,5ptp4l0-21swapper/322:49:363
2847191400,5ptp4l0-21swapper/222:10:132
2847191400,5ptp4l0-21swapper/119:24:591
2847191400,4ptp4l5061-21/usr/sbin/munin22:20:123
2847191400,4ptp4l41-21ksoftirqd/320:00:233
2847191400,4ptp4l3471-21/usr/sbin/munin23:25:201
2847191400,4ptp4l0-21swapper/323:35:273
2847191400,4ptp4l0-21swapper/322:59:463
2847191400,4ptp4l0-21swapper/322:50:143
2847191400,4ptp4l0-21swapper/322:39:163
2847191400,4ptp4l0-21swapper/321:37:183
2847191400,4ptp4l0-21swapper/321:15:163
2847191400,4ptp4l0-21swapper/321:05:463
2847191400,4ptp4l0-21swapper/321:00:253
2847191400,4ptp4l0-21swapper/320:55:103
2847191400,4ptp4l0-21swapper/319:31:533
2847191400,4ptp4l0-21swapper/319:29:203
2847191400,4ptp4l0-21swapper/319:15:233
2847191400,4ptp4l0-21swapper/300:08:503
2847191400,4ptp4l0-21swapper/223:20:542
2847191400,4ptp4l0-21swapper/222:46:362
2847191400,4ptp4l0-21swapper/123:48:591
2847191400,4ptp4l0-21swapper/123:13:351
2847191400,4ptp4l0-21swapper/123:05:191
2847191400,4ptp4l0-21swapper/122:31:441
2847191400,4ptp4l0-21swapper/122:10:161
2847191400,4ptp4l0-21swapper/121:48:191
2847191400,4ptp4l0-21swapper/121:15:201
2847191400,4ptp4l0-21swapper/121:14:091
2847191400,4ptp4l0-21swapper/120:55:121
2847191400,4ptp4l0-21swapper/119:32:211
2847191400,3ptp4l4421-21users22:15:281
2847191400,3ptp4l4421-21users22:15:281
2847191400,3ptp4l19323-21apt-get00:00:121
2847191400,3ptp4l17693-21apt-get19:20:113
2847191400,3ptp4l14487-21irqstats20:20:211
2847191400,3ptp4l13623-21iostat19:10:191
2847191400,3ptp4l1293-21snmpd23:01:183
2847191400,3ptp4l0-21swapper/323:49:193
2847191400,3ptp4l0-21swapper/220:11:282
2847191400,3ptp4l0-21swapper/220:11:282
2847191400,3ptp4l0-21swapper/120:50:241
2847191400,2ptp4l10057-21apt-get23:40:131
13019994014,23cyclictest4364-21apt-get20:00:162
13019994011,28cyclictest0-21swapper/222:52:032
13019994011,27cyclictest0-21swapper/221:05:402
13019994011,11cyclictest4021-21ntp_states23:25:252
2847191390,5ptp4l0-21swapper/221:45:262
2847191390,4ptp4l5403-21latency21:10:203
2847191390,4ptp4l1293-21snmpd23:05:153
2847191390,4ptp4l1293-21snmpd20:30:503
2847191390,4ptp4l0-21swapper/323:22:253
2847191390,4ptp4l0-21swapper/323:15:263
2847191390,4ptp4l0-21swapper/322:15:003
2847191390,4ptp4l0-21swapper/321:27:203
2847191390,4ptp4l0-21swapper/320:53:003
2847191390,4ptp4l0-21swapper/320:14:143
2847191390,4ptp4l0-21swapper/320:14:143
2847191390,4ptp4l0-21swapper/319:59:283
2847191390,4ptp4l0-21swapper/319:43:083
2847191390,4ptp4l0-21swapper/121:40:571
2847191390,3ptp4l0-21swapper/319:39:003
2847191390,3ptp4l0-21swapper/319:38:593
2847191390,3ptp4l0-21swapper/300:15:523
2847191390,3ptp4l0-21swapper/123:53:331
2847191380,4ptp4l0-21swapper/322:29:533
2847191380,3ptp4l0-21swapper/321:45:273
2847191380,3ptp4l0-21swapper/320:28:143
2847191380,3ptp4l0-21swapper/320:20:283
2847191380,3ptp4l0-21swapper/320:05:203
2847191380,3ptp4l0-21swapper/300:10:353
2847191380,3ptp4l0-21swapper/123:36:021
2847191370,4ptp4l0-21swapper/321:33:293
2847191370,2ptp4l0-21swapper/320:40:523
41798360,4rtkit-daemon0-21swapper/300:32:293
2847191360,3ptp4l0-21swapper/322:30:063
2847191360,3ptp4l0-21swapper/300:23:343
2847191360,2ptp4l0-21swapper/321:51:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional