You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2019-05-24 - 03:50

VIA Nano X2 L4050 @ 1.4 GHz, Linux 3.18.36-rt38 (Profile)

Latency plot of system in rack #3, slot #4
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
Characteristics of the highest latencies:
System rack3slot4.osadl.org (updated Fri Dec 21, 2018 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32101995938,15cyclictest15797-21date10:35:130
103832540,4sleep010384-21basename11:09:520
3210199511,5cyclictest14785-21diskstats11:14:560
3210199491,32cyclictest2311-21missed_timers07:15:110
32101994733,4cyclictest0-21swapper/010:50:120
32101994732,5cyclictest24491-21ssh09:25:410
32101994731,7cyclictest439-21runrttasks12:10:190
3210199472,29cyclictest6656-21sshd07:27:110
32101994631,5cyclictest0-21swapper/011:20:160
3210199461,29cyclictest24089-21timerwakeupswit09:25:150
3210199458,32cyclictest37150irq/33-eth010:54:470
3210199452,6cyclictest18867-21missed_timers12:40:030
32101994431,4cyclictest0-21swapper/007:55:230
32101994429,5cyclictest5974-21latency08:55:080
32101994424,5cyclictest0-21swapper/010:25:040
3210199442,37cyclictest4809-21ssh11:42:210
3210199441,6cyclictest20029-21timerandwakeup09:20:150
3210199441,4cyclictest0-21swapper/007:40:040
3210199441,39cyclictest0-21swapper/008:10:170
3210199441,28cyclictest4172-21latency08:50:080
3210199441,27cyclictest3474-21timerwakeupswit11:40:100
32101994412,15cyclictest2430-21ssh09:39:510
32101994329,4cyclictest0-21swapper/011:54:510
3210199431,5cyclictest0-21swapper/011:20:040
3210199431,5cyclictest0-21swapper/011:05:120
3210199431,27cyclictest19460-21latency10:00:050
32101994229,4cyclictest10638-21diskmemload09:45:500
32101994229,4cyclictest0-21swapper/008:25:280
32101994228,5cyclictest0-21swapper/007:50:170
32101994226,6cyclictest31668-21latency09:35:060
32101994225,7cyclictest13110-21latency07:45:100
32101994223,7cyclictest27772-21timerandwakeup11:30:110
3210199421,7cyclictest10032-21timerwakeupswit09:05:160
3210199421,6cyclictest27846-21ps10:10:100
32101994129,4cyclictest0-21swapper/008:00:290
32101994123,4cyclictest22963-21diskstats10:44:570
3210199412,27cyclictest7285-21iostat09:45:040
32101994121,11cyclictest0-21swapper/008:15:530
3210199412,10cyclictest0-21swapper/010:04:490
3210199402,7cyclictest5860-21/usr/sbin/munin07:25:110
3210199402,33cyclictest0-21swapper/008:21:030
32101994022,3cyclictest27632-21ssh12:10:100
3210199402,23cyclictest17038-21/usr/sbin/munin07:55:180
3210199401,4cyclictest0-21swapper/009:10:190
3210199401,3cyclictest17941-21ssh11:59:210
3210199401,33cyclictest0-21swapper/007:35:100
32102993913,7cyclictest28168-21unixbench_multi09:30:161
3210199399,18cyclictest0-21swapper/007:20:120
3210199393,17cyclictest0-21swapper/007:10:170
32101993924,6cyclictest920-21switchtime08:40:160
32101993916,11cyclictest11463-21iostat_ios09:10:060
3210199391,23cyclictest32648-21ssh12:16:450
3210199383,31cyclictest0-21swapper/010:28:490
32101993824,6cyclictest8967-21sshd11:47:380
3210199382,29cyclictest0-21swapper/010:40:050
3210199382,28cyclictest7126-21smart_sda12:25:080
3210199382,23cyclictest0-21swapper/012:32:040
3210199382,22cyclictest0-21swapper/010:11:120
3210199382,21cyclictest31325-21ntpq08:35:110
3210199382,21cyclictest28858-21ssh11:31:470
3210199381,31cyclictest0-21swapper/011:00:030
32102993714,6cyclictest27605-21latency09:30:061
32101993725,4cyclictest0-21swapper/010:19:540
3210199372,17cyclictest0-21swapper/009:54:570
3210199371,30cyclictest0-21swapper/009:00:070
32101993710,14cyclictest0-21swapper/012:02:150
3210299362,20cyclictest0-21swapper/112:21:321
32102993618,5cyclictest31997-21sed10:55:131
32102993615,7cyclictest14967-21ntpq12:35:041
32102993614,6cyclictest26605-21cut10:49:531
32101993624,4cyclictest0-21swapper/008:10:280
3210199362,20cyclictest0-21swapper/012:26:570
32102993512,6cyclictest12077-21unixbench_multi09:10:171
32101993525,6cyclictest2458-21tail08:45:090
3210299342,15cyclictest0-21swapper/111:06:031
32102993420,10cyclictest20947-21sh12:02:241
32102993413,6cyclictest290-21nscd11:00:171
3210299341,19cyclictest27052-21iostat12:09:591
3210299332,17cyclictest0-21swapper/111:50:281
3210299332,17cyclictest0-21swapper/110:27:421
3210299332,15cyclictest0-21swapper/110:22:551
3210299331,20cyclictest0-21swapper/110:09:231
3210299331,18cyclictest20371-21ssh09:20:291
316682332,7sleep10-21swapper/107:05:301
3210299324,17cyclictest37150irq/33-eth012:39:201
3210299322,18cyclictest0-21swapper/111:30:271
3210299322,17cyclictest0-21swapper/109:53:531
3210299322,17cyclictest0-21swapper/109:06:341
3210299322,16cyclictest0-21swapper/111:35:401
32102993216,5cyclictest37150irq/33-eth011:19:531
3210299321,19cyclictest0-21swapper/112:12:151
3210299321,19cyclictest0-21swapper/111:46:571
3210299321,19cyclictest0-21swapper/109:37:331
32102993211,16cyclictest141262chrt10:34:141
3210299313,13cyclictest23302-21if_eth010:45:021
3210299312,8cyclictest3137-21switchtime12:20:091
32102993122,5cyclictest3813-21df08:50:021
3210299312,16cyclictest3709-21ssh11:40:181
3210299312,16cyclictest0-21swapper/109:46:551
3210299312,15cyclictest0-21swapper/108:30:181
32102993114,12cyclictest2282-21if_eth008:45:051
3210299311,18cyclictest27373-21missed_timers11:30:041
3210299311,18cyclictest0-21swapper/111:13:001
3210299311,17cyclictest19099-21perl10:39:591
3210299311,17cyclictest0-21swapper/110:01:571
3210299306,13cyclictest0-21swapper/112:27:551
3210299302,16cyclictest0-21swapper/109:57:581
3210299302,16cyclictest0-21swapper/109:41:191
32102993021,5cyclictest31039-21df10:54:581
3210299302,15cyclictest0-21swapper/111:21:381
3210299301,10cyclictest2643-21cpuspeed10:19:571
3210299292,22cyclictest8276-21users07:30:201
3210299292,22cyclictest7735-21iostat_ios09:00:051
3210299292,22cyclictest19428-21chrt08:03:261
3210299292,22cyclictest16951-21ssh11:57:301
3210299292,15cyclictest0-21swapper/110:12:351
3210299292,14cyclictest0-21swapper/109:18:021
32102992919,6cyclictest27698-21ntpdc08:25:111
3210299291,23cyclictest4545-21grep07:20:191
3210299283,14cyclictest37150irq/33-eth007:59:591
3210299282,20cyclictest1068-21/usr/sbin/munin07:10:221
32102992818,6cyclictest24068-21netstat08:15:111
32102992813,11cyclictest21417-21aten_r3power_en08:09:581
3210299281,23cyclictest16321-21df_inode07:55:021
3210299277,16cyclictest201ktimersoftd/107:44:101
3210299272,21cyclictest86942sleep109:03:231
32102992717,6cyclictest14420-21df_abs07:50:011
32102992717,6cyclictest11278-21latency07:40:111
3210299271,22cyclictest7626-21iostat07:30:081
3210299271,22cyclictest32134-21taskset08:39:111
3210299271,21cyclictest2859-21users07:15:201
32102992616,6cyclictest6131-21ntpq08:55:111
32102992615,6cyclictest24487-21unixbench_singl08:15:191
3210299261,21cyclictest29954-21users08:30:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional