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2021-05-12 - 14:28

VIA Samuel 2, Linux 3.18.9-rt4 (Profile)

Latency plot of system in rack #3, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p98 -i200 -h1000 -q
Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the highest latencies:
System rack3slot7.osadl.org (updated Wed May 12, 2021 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140160ksoftirqd/017894-21kworker/0:106:54:130
14991320watchdog/03166-21runrttasks11:32:170
14991300watchdog/08069-21chrt09:25:130
14991290watchdog/03481-21munin-node07:24:250
14991290watchdog/028130-21munin-node09:09:050
14991270watchdog/026322-21aten_r3power_po12:14:290
14991230watchdog/022249-21munin-node08:24:330
14991230watchdog/018362-21df_inode11:49:170
14991210watchdog/032021-21latency_hist08:58:570
14991210watchdog/027409-21cstates10:29:330
14991210watchdog/016563-21nfs_client09:54:210
14991200watchdog/09133-21open_inodes11:19:090
14991190watchdog/028619-21seq08:46:050
14991190watchdog/025343-21cpu10:24:170
14991180watchdog/018636-21runrttasks10:01:090
14991180watchdog/015337-21wc09:49:290
14991160watchdog/026819-21missed_timers08:39:290
14991160watchdog/020364-21aten_r3power_vo08:19:170
14991160watchdog/012582-21latency_hist07:53:570
14991150watchdog/03166-21runrttasks09:32:290
14991150watchdog/018878-21cut08:14:170
14991150watchdog/01855-21cpu10:54:170
14991130watchdog/021270-21timerandwakeup10:09:330
14991120watchdog/07162-21grep07:34:210
14991120watchdog/017022-21pluginstate08:08:570
14991090watchdog/04432-21ntp_offset09:14:170
32707210712sleep032090-21munin-node08:59:280
2233501030irq/11-eth030657-21aten_r3power_po07:04:310
223350970irq/11-eth014289-21sed11:34:380
223350960irq/11-eth07570-21latency_hist11:13:580
223350950irq/11-eth023571-21nfs_client08:29:220
83750860irq/14-ide06562-21cron07:33:560
1499860watchdog/05094-21nfs_client11:04:210
1499860watchdog/027611-21needreboot12:19:330
1499850watchdog/023831-21hostname10:19:170
1499850watchdog/02056-21df07:19:130
1499850watchdog/014731-21munin-node07:59:250
1499850watchdog/010415-21aten_r3power_en07:44:290
83750840irq/14-ide08448-21cpu07:39:170
28136988412cyclictest22569-21nfs_client10:14:220
1499840watchdog/03166-21runrttasks09:40:050
223350830irq/11-eth019210-21idleruntime10:04:140
1961728312sleep019648-21if_eth011:54:090
28136988212cyclictest32091-21latency07:09:400
213428211sleep02135-21cron09:05:560
1499820watchdog/0160282sleep011:40:290
28136988112cyclictest6353-21aten_r3power_vo11:09:170
83750800irq/14-ide06840-21runrttasks09:22:240
28136988014cyclictest30328-21aten_r3power_en10:39:380
1499800watchdog/032316-21chrt10:48:050
1499800watchdog/017636-21chrt11:46:290
1499790watchdog/0294642sleep007:01:370
83750780irq/14-ide021008-21latency_hist11:58:580
28136987814cyclictest17013-21latency_hist08:08:590
28136987812cyclictest32558-21munin-node10:49:270
1330227812sleep013355-21wc07:54:290
28136987712cyclictest24500-21nfs_client12:09:240
28136987712cyclictest1199-21aten_r3power_po07:14:310
1499770watchdog/03166-21runrttasks12:07:370
1499770watchdog/028657-21df12:24:140
28136987613cyclictest3131-21mailstats10:59:060
28136987613cyclictest28410-21runrttasks10:34:180
28136987611cyclictest24611-21munin-node08:34:080
28136987512cyclictest11071-21nfs_client11:24:230
28136987413cyclictest3166-21runrttasks09:34:170
1499740watchdog/029253-21df08:49:210
1499740watchdog/013575-21chrt09:44:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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