You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-02-06 - 13:43

x86 Intel Core i9-9900K @3600 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 100 highest latencies:
System rack0slot7.osadl.org (updated Mon Feb 06, 2023 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17967052240235,2sleep120-21swapper/1219:07:294
17795422211205,3sleep80-21swapper/819:05:1714
17798852185177,4sleep90-21swapper/919:05:1715
17781042169157,6sleep40-21swapper/419:05:1210
17964742127119,4sleep110-21swapper/1119:05:513
17967142119113,3sleep10-21swapper/119:07:331
2679159101140,111AudioIP~ackRPC0-2113:50:496
1797319991134,85cyclictest2697256-21latency_hist22:44:597
17973199911330,83cyclictest2628857-21ssh22:26:507
17973199911228,84cyclictest1834936-21grep19:15:297
17964662112108,1sleep30-21swapper/319:05:439
1797319991117,62cyclictest3116574-21ntpq00:15:387
17973199911127,42cyclictest2356416-21kthreadcore21:25:267
17966192111109,1sleep70-21swapper/719:07:2413
1797319991105,84cyclictest2481532-21kthreadcore21:55:227
1797319991084,62cyclictest2908336-21tr23:30:247
17973199910840,42cyclictest287433-21Compositor21:15:537
1797319991072,63cyclictest3206486-21grep00:35:417
17973199910723,63cyclictest1984458-21/usr/sbin/munin19:55:197
17965512107106,0sleep00-21swapper/019:06:280
17973199910457,42cyclictest2741878-21ssh22:54:437
17973199910341,42cyclictest2606563-21ssh22:21:217
17973199910336,63cyclictest2678884-21Socket13:50:497
17973199910320,42cyclictest287433-21Compositor22:07:187
17973199910320,42cyclictest287433-21Compositor22:07:177
17973199910320,41cyclictest1846743-21kthreadcore19:20:257
17973199910139,20cyclictest1904431-21diskstats19:35:137
17973199910138,42cyclictest2762282-21ssh22:56:187
17973199910135,62cyclictest287428-21Chrome_ChildIOT19:44:297
17973199910038,41cyclictest2560979-21ntpq22:10:307
17973199910016,42cyclictest2678884-21Socket13:50:497
17973199910016,42cyclictest2387126-21ps21:34:337
1797319999937,42cyclictest287433-21Compositor20:07:047
1797319999937,42cyclictest287433-21Compositor20:07:037
1797319999936,42cyclictest3074887-21ssh00:09:487
1797319999936,42cyclictest3074887-21ssh00:09:477
1797319999915,42cyclictest287433-21Compositor19:45:117
1797319999835,62cyclictest287428-21Chrome_ChildIOT19:34:247
1797319999835,42cyclictest2856161-21irqcore23:20:347
1797319999815,42cyclictest7213-21Xorg23:05:087
179659029753,37sleep150-21swapper/1519:06:597
1797319999635,41cyclictest2440792-21kthreadcore21:45:267
1797319999634,21cyclictest1815798-21sort19:10:347
1797319999612,84cyclictest2891734-21kthreadcore23:25:257
1797319999432,41cyclictest3163610-21ssh00:28:487
1797319999431,21cyclictest2176891-21ntpq20:40:287
179731999939,63cyclictest2923591-21kthreadcore23:35:197
1797319999331,42cyclictest2223010-21cut20:55:217
1797319999330,42cyclictest22006-21gmain23:58:087
1797319999329,43cyclictest287038-21opera20:04:057
1797314999310,20cyclictest95-21ksoftirqd/1100:36:483
179731999928,42cyclictest2473875-21ssh21:51:097
769720910,48pipewire0-21swapper/519:07:1111
1797319999129,62cyclictest1874566-21kthreadcore19:25:217
179731999906,63cyclictest2995032-21kthreadcore23:50:227
179731999906,43cyclictest2765019-21ssh23:00:037
1797319999028,42cyclictest286798-21Chrome_IOThread21:21:407
1797319999027,43cyclictest287428-21Chrome_ChildIOT22:48:407
1797319999027,21cyclictest2398855-21kthreadcore21:35:287
1797319999024,42cyclictest287428-21Chrome_ChildIOT00:21:067
1797314999027,63cyclictest3086808-21usb-storage20:32:393
1797319998826,61cyclictest7655-10wireplumber22:32:517
1797319998824,43cyclictest287038-21opera22:04:057
769720870,76pipewire0-21swapper/1319:09:055
1797319998725,21cyclictest287433-21Compositor22:19:277
1797319998723,43cyclictest287038-21opera21:04:057
179731999862,63cyclictest2286665-21cut21:10:247
1797319998624,62cyclictest2962832-21rm23:43:197
179731999851,42cyclictest2852744-21ssh23:19:417
179731999850,65cyclictest2271464-21kthreadcore21:05:247
179731999850,65cyclictest2271464-21kthreadcore21:05:237
1797319998422,21cyclictest2829628-21ssh23:12:387
1797319998220,20cyclictest3185157-21ssh00:32:147
179731999820,41cyclictest2982456-21missed_timers23:45:287
1797319998134,43cyclictest286855-21VizCompositorTh20:22:197
1797319998120,41cyclictest2117837-21ntpq20:25:277
179731999810,60cyclictest3095356-21ssh00:11:137
1797314998116,21cyclictest0-21swapper/1119:55:553
1797319998017,21cyclictest2190177-21cut20:45:277
1797319997938,21cyclictest2153194-21cut20:35:257
1797314997916,63cyclictest0-21swapper/1100:15:403
1797319997816,62cyclictest2127695-21kthreadcore20:30:247
1797319997815,42cyclictest2411149-21ssh21:40:117
1797314997844,31cyclictest0-21swapper/1119:40:053
179686227876,1sleep20-21swapper/219:08:548
1797319997715,41cyclictest2060732-21cpu20:15:127
1797314997714,63cyclictest0-21swapper/1119:39:523
1797314997714,21cyclictest0-21swapper/1121:28:213
1797314997713,64cyclictest0-21swapper/1122:39:133
1797314997615,20cyclictest0-21swapper/1121:48:293
1797319997512,21cyclictest2043213-21sed20:10:177
179731999750,34cyclictest2656214-21ssh22:35:207
1797314997513,42cyclictest0-21swapper/1123:02:163
1797314997512,63cyclictest0-21swapper/1122:22:243
1797314997412,42cyclictest0-21swapper/1123:16:383
1797314997411,63cyclictest0-21swapper/1120:21:013
1797314997411,43cyclictest0-21swapper/1119:27:143
1797314997411,42cyclictest769220pipewire-pulse20:15:193
1797314997411,42cyclictest0-21swapper/1119:18:423
179731499739,64cyclictest0-21swapper/1122:59:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional