You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-06-05 - 15:46

x86 Intel Celeron G3900 @2800 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
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 -h200 -q
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 rackcslot2.osadl.org (updated Mon Jun 05, 2023 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2016827339,30sleep00-21swapper/007:02:490
2035826956,8sleep10-21swapper/107:04:491
305972650,1sleep00-21swapper/007:32:160
38582220,1sleep13857-21cat09:07:491
20775991610,6cyclictest0-21swapper/108:05:021
20775991610,0cyclictest0-21swapper/107:17:491
20774991611,4cyclictest24860-21kworker/0:110:54:280
20774991610,6cyclictest0-21swapper/009:22:480
20775991515,0cyclictest32395-21sshd11:42:591
20775991515,0cyclictest0-21swapper/112:32:531
20775991515,0cyclictest0-21swapper/109:48:301
20775991510,5cyclictest0-21swapper/112:15:211
20775991510,5cyclictest0-21swapper/110:17:341
20775991510,0cyclictest0-21swapper/112:08:301
20775991510,0cyclictest0-21swapper/110:04:121
20775991510,0cyclictest0-21swapper/107:50:441
20774991515,0cyclictest0-21swapper/008:44:360
20774991514,1cyclictest7-21ksoftirqd/008:07:160
20774991514,1cyclictest15552-21ls09:37:420
20774991514,1cyclictest0-21swapper/010:25:400
20774991513,1cyclictest279612sleep007:23:250
20774991510,5cyclictest0-21swapper/011:13:270
20774991510,5cyclictest0-21swapper/010:45:330
20774991510,5cyclictest0-21swapper/007:45:580
20774991510,0cyclictest0-21swapper/011:40:010
20774991510,0cyclictest0-21swapper/009:33:230
20775991414,0cyclictest0-21swapper/112:01:391
20775991414,0cyclictest0-21swapper/110:59:201
20775991414,0cyclictest0-21swapper/110:35:271
20775991414,0cyclictest0-21swapper/107:41:031
20775991413,0cyclictest2470-21pluginstate10:27:401
20775991412,1cyclictest633-21nscd08:37:411
20775991412,1cyclictest17659-21/usr/sbin/munin08:22:461
20775991412,1cyclictest16387-21apache207:28:151
20775991412,1cyclictest13584-21timerwakeupswit09:32:411
20775991411,2cyclictest93650irq/99-eth0-rx-10:01:441
20775991410,4cyclictest0-21swapper/112:17:461
20774991414,0cyclictest0-21swapper/011:50:120
20774991414,0cyclictest0-21swapper/009:17:410
20774991413,1cyclictest3590-21wc09:07:470
20774991412,1cyclictest30666-21apache210:34:530
20774991412,1cyclictest30666-21apache210:17:420
20774991412,1cyclictest30666-21apache210:01:240
20774991412,1cyclictest28901-21ntp_states10:12:440
20774991412,1cyclictest248772sleep011:26:350
20774991412,1cyclictest17384-21sensors_temp09:42:420
20774991412,1cyclictest14151-21ntpq10:57:390
20774991411,2cyclictest16158-21latency_hist12:27:160
20775991313,0cyclictest0-21swapper/112:27:431
20775991312,1cyclictest793-21sendmail-mta11:04:571
20775991312,1cyclictest793-21sendmail-mta10:41:061
20775991312,1cyclictest730-21snmpd08:09:561
20775991312,1cyclictest30666-21apache211:56:001
20775991312,1cyclictest30666-21apache211:18:421
20775991312,1cyclictest30666-21apache210:47:421
20775991312,1cyclictest26439-21cut10:07:411
20775991311,1cyclictest798-21apache208:30:491
20775991311,1cyclictest633-21nscd07:12:431
20775991311,1cyclictest30666-21apache210:42:381
20775991311,1cyclictest30666-21apache209:52:331
20775991311,1cyclictest30640-21apache211:10:501
20775991310,3cyclictest0-21swapper/112:22:421
20775991310,3cyclictest0-21swapper/111:27:451
20775991310,3cyclictest0-21swapper/110:22:171
20775991310,3cyclictest0-21swapper/108:54:101
20775991310,3cyclictest0-21swapper/107:58:051
20775991310,3cyclictest0-21swapper/107:43:401
20775991310,3cyclictest0-21swapper/107:36:331
20775991310,1cyclictest29969-21kworker/u4:009:16:301
20775991310,1cyclictest28426-21ssh11:33:081
20775991310,1cyclictest0-21swapper/109:24:301
20775991310,1cyclictest0-21swapper/108:32:381
20775991310,0cyclictest0-21swapper/111:51:201
20775991310,0cyclictest0-21swapper/109:20:331
20775991310,0cyclictest0-21swapper/109:02:351
20775991310,0cyclictest0-21swapper/108:57:451
20775991310,0cyclictest0-21swapper/108:50:171
20775991310,0cyclictest0-21swapper/108:21:211
20775991310,0cyclictest0-21swapper/108:15:221
20775991310,0cyclictest0-21swapper/107:54:381
20775991310,0cyclictest0-21swapper/107:26:141
20774991313,0cyclictest0-21swapper/008:15:320
20774991312,1cyclictest93750irq/100-eth0-rx07:52:330
20774991312,1cyclictest30666-21apache209:02:150
20774991311,2cyclictest93650irq/99-eth0-rx-11:08:150
20774991311,1cyclictest81ktimersoftd/012:27:400
20774991311,1cyclictest793-21sendmail-mta10:02:360
20774991311,1cyclictest30666-21apache212:08:400
20774991311,1cyclictest30666-21apache211:33:000
20774991311,1cyclictest30640-21apache211:57:260
20774991311,1cyclictest30640-21apache209:52:340
20774991310,3cyclictest0-21swapper/012:36:320
20774991310,3cyclictest0-21swapper/011:21:260
20774991310,3cyclictest0-21swapper/011:02:310
20774991310,3cyclictest0-21swapper/010:08:390
20774991310,3cyclictest0-21swapper/009:00:420
20774991310,3cyclictest0-21swapper/008:39:570
20774991310,3cyclictest0-21swapper/007:32:060
20774991310,1cyclictest93750irq/100-eth0-rx11:55:280
20774991310,0cyclictest0-21swapper/012:17:330
20774991310,0cyclictest0-21swapper/008:47:570
1277221310,2sleep10-21swapper/110:53:021
20775991211,1cyclictest11362-21pmu-power09:27:421
20775991210,2cyclictest0-21swapper/112:02:321
20775991210,1cyclictest730-21snmpd11:12:271
20775991210,1cyclictest23264-21cpuspeed_turbos11:22:371
20775991210,1cyclictest0-21swapper/111:37:331
20775991210,1cyclictest0-21swapper/110:12:351
20775991210,1cyclictest0-21swapper/109:42:341
20775991210,1cyclictest0-21swapper/109:37:311
20775991210,1cyclictest0-21swapper/107:07:381
20775991210,0cyclictest0-21swapper/108:42:211
20774991211,1cyclictest597-21avahi-daemon11:27:160
20774991211,1cyclictest30666-21apache210:37:340
20774991211,1cyclictest30640-21apache209:27:240
20774991210,2cyclictest0-21swapper/010:47:200
20774991210,1cyclictest6864-21fw_packets12:02:360
20774991210,1cyclictest30640-21apache207:47:410
20774991210,1cyclictest26136-21kworker/u4:012:12:250
20774991210,1cyclictest157292sleep008:17:300
20774991210,1cyclictest0-21swapper/011:42:340
20774991210,1cyclictest0-21swapper/010:27:330
20774991210,1cyclictest0-21swapper/009:47:340
20774991210,1cyclictest0-21swapper/009:12:330
20774991210,1cyclictest0-21swapper/008:52:350
20774991210,1cyclictest0-21swapper/008:27:340
20774991210,1cyclictest0-21swapper/008:22:360
20774991210,1cyclictest0-21swapper/008:07:350
20774991210,1cyclictest0-21swapper/007:57:160
20774991210,1cyclictest0-21swapper/007:37:330
20774991210,1cyclictest0-21swapper/007:17:380
20774991210,1cyclictest0-21swapper/007:12:350
20774991210,1cyclictest0-21swapper/007:07:370
20774991210,0cyclictest0-21swapper/008:32:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional