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2023-01-27 - 16:39

x86 Intel Xeon E3-1270 v2 @3500 MHz, Linux 4.19.25-rt16 (Profile)

Latency plot of system in rack #3, slot #0
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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack3slot0.osadl.org (updated Fri Jan 27, 2023 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294442450,0sleep10-21swapper/111:45:371
294442450,0sleep10-21swapper/111:45:371
184942440,0sleep20-21swapper/209:00:492
184942440,0sleep20-21swapper/209:00:492
1360624328,11sleep20-21swapper/207:00:392
1360624328,11sleep20-21swapper/207:00:392
125222430,0sleep10-21swapper/107:55:381
125222430,0sleep10-21swapper/107:55:381
1516524129,8sleep00-21swapper/007:04:060
1516524129,8sleep00-21swapper/007:04:060
1515724128,9sleep30-21swapper/307:04:013
1515724128,9sleep30-21swapper/307:04:013
1516924029,8sleep40-21swapper/407:04:104
1516924029,8sleep40-21swapper/407:04:104
1508323927,8sleep50-21swapper/507:02:585
1508323927,8sleep50-21swapper/507:02:585
1496923926,9sleep70-21swapper/707:01:247
1496923926,9sleep70-21swapper/707:01:247
1279723926,8sleep60-21swapper/607:00:356
1279723926,8sleep60-21swapper/607:00:356
1508823826,8sleep10-21swapper/107:03:021
1508823826,8sleep10-21swapper/107:03:021
1541099201,5cyclictest7058-21sshd11:52:417
15406991916,0cyclictest29730-21kworker/3:211:29:123
15406991916,0cyclictest29730-21kworker/3:211:29:123
1539799190,7cyclictest4640-21systemd10:21:591
1539799190,7cyclictest4640-21systemd10:21:591
1539799190,10cyclictest1-21systemd11:43:221
1539799190,10cyclictest1-21systemd11:43:221
15406991817,0cyclictest31331-21kworker/3:208:39:203
15406991816,0cyclictest31331-21kworker/3:208:41:043
15406991811,4cyclictest41-21ksoftirqd/312:07:583
15406991811,4cyclictest41-21ksoftirqd/312:07:583
1539799180,6cyclictest1-21systemd11:33:241
1539799180,6cyclictest1-21systemd11:33:241
1539799180,6cyclictest0-21swapper/109:08:151
1539799180,6cyclictest0-21swapper/109:08:151
1541099170,6cyclictest0-21swapper/709:29:127
1541099170,6cyclictest0-21swapper/709:29:127
15406991715,2cyclictest32222-21kworker/3:107:32:053
15406991715,2cyclictest31331-21kworker/3:209:02:023
15406991715,2cyclictest31331-21kworker/3:209:02:023
15406991713,4cyclictest8515-21kworker/3:008:14:553
1539799170,9cyclictest1682-21grep09:49:321
1539799170,8cyclictest4068-21sshd10:54:041
1539799170,8cyclictest4068-21sshd10:54:041
1539799170,8cyclictest15088-21systemd12:24:131
1539799170,10cyclictest19612-21grepconf.sh11:39:181
1539799170,10cyclictest19612-21grepconf.sh11:39:181
1541099163,4cyclictest14229-21systemd11:35:407
1541099163,4cyclictest14229-21systemd11:35:407
1541099161,7cyclictest0-21swapper/709:51:167
1541099161,7cyclictest0-21swapper/709:51:167
15406991615,0cyclictest20149-21kworker/3:310:37:323
15406991615,0cyclictest20149-21kworker/3:310:37:323
15406991615,0cyclictest16365-21kworker/3:009:12:363
15406991615,0cyclictest16365-21kworker/3:009:12:363
15406991613,1cyclictest12439-21kworker/3:109:46:463
1539799160,9cyclictest1-21systemd10:47:261
1539799160,9cyclictest1-21systemd10:47:261
1539799160,8cyclictest7578-21grepconf.sh12:16:521
1539799160,8cyclictest692-21dbus-daemon11:04:521
1539799160,8cyclictest692-21dbus-daemon11:04:521
1539799160,8cyclictest0-21swapper/109:35:371
1539799160,8cyclictest0-21swapper/109:35:371
1539799160,7cyclictest0-21swapper/110:59:161
1539799160,7cyclictest0-21swapper/110:59:161
1539799160,10cyclictest6235-21grepconf.sh09:53:131
1539799160,10cyclictest6235-21grepconf.sh09:53:131
1541099153,6cyclictest31626-21systemd10:16:497
1541099153,6cyclictest31626-21systemd10:16:497
1541099153,6cyclictest22085-21systemd10:08:217
1541099153,6cyclictest22085-21systemd10:08:217
1541099152,6cyclictest692-21dbus-daemon09:25:187
1541099151,5cyclictest23069-21systemd11:11:237
1541099151,5cyclictest23069-21systemd11:11:237
1541099151,5cyclictest1-21systemd11:46:557
1541099151,5cyclictest1-21systemd11:46:557
1541099151,5cyclictest0-21swapper/709:05:247
1541099151,5cyclictest0-21swapper/709:05:247
1541099151,4cyclictest0-21swapper/710:50:247
1541099151,4cyclictest0-21swapper/710:50:247
1541099150,6cyclictest0-21swapper/709:45:457
1541099150,3cyclictest0-21swapper/711:43:507
1541099150,3cyclictest0-21swapper/711:43:507
15406991514,1cyclictest1758-21kworker/3:010:30:163
15406991514,1cyclictest1758-21kworker/3:010:30:163
15406991513,2cyclictest31331-21kworker/3:208:58:343
15406991513,2cyclictest31331-21kworker/3:208:58:343
15406991513,1cyclictest41-21ksoftirqd/311:55:403
15406991513,1cyclictest41-21ksoftirqd/311:55:403
15406991513,1cyclictest41-21ksoftirqd/311:41:223
15406991513,1cyclictest41-21ksoftirqd/311:41:223
15406991513,0cyclictest15213-21kworker/3:207:30:013
15406991512,3cyclictest32222-21kworker/3:107:43:533
1539799150,7cyclictest1-21systemd12:10:381
1539799150,7cyclictest1-21systemd12:10:381
1539799150,6cyclictest0-21swapper/109:25:281
1539799150,6cyclictest0-21swapper/109:25:281
1539799150,12cyclictest20024-21systemd12:27:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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