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2023-05-28 - 09:22

x86 VIA Samuel 2 @533 MHz, 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 Sun May 28, 2023 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140210ksoftirqd/08811-21kworker/0:219:04:160
14991290watchdog/029375-21ntp_offset19:09:210
14991270watchdog/028278-21runrttasks22:42:380
14991260watchdog/02881-21aten_r3power_en23:04:420
14991260watchdog/024095-21munin-node22:29:380
14991250watchdog/03178-21runrttasks21:15:170
14991250watchdog/023962-21latency_hist22:29:020
14991250watchdog/022937-21cat20:34:410
14991230watchdog/05571-21sensors23:14:340
14991230watchdog/018214-21needreboot20:19:330
27057212211sleep027096-21expr20:49:320
14991220watchdog/08184-21aten_r3power_cu23:24:220
14991220watchdog/06361-21chrt21:29:250
14991210watchdog/03178-21runrttasks23:21:020
14991190watchdog/02646-21chrt19:29:130
14991180watchdog/029498-21nfs_client00:34:340
14991180watchdog/01659-21nfs_client19:24:330
14991170watchdog/021910-21runrttasks20:33:210
14991160watchdog/016138-21munin-node20:14:330
14991150watchdog/029049-21nfs_client22:44:340
14991130watchdog/030782-21sendmail_mailqu22:49:420
21714211011sleep021782-21awk00:09:280
14991100watchdog/03178-21runrttasks21:51:370
14991100watchdog/03178-21runrttasks21:39:250
14991090watchdog/0239332sleep000:14:580
14991090watchdog/010054-21sh23:29:380
2615501080irq/11-eth015738-21seq21:59:390
14991080watchdog/028362-21aten_r3power_po00:29:460
961501070irq/14-ide013776-21df21:54:270
14991070watchdog/05081-21head21:24:330
14991060watchdog/0156942sleep023:49:220
2615501050irq/11-eth0123102sleep019:59:380
14991050watchdog/03178-21runrttasks21:09:570
14991050watchdog/014011-21chrt20:04:450
14991030watchdog/05581-21latency_hist19:39:010
14991030watchdog/03178-21runrttasks21:20:330
14991030watchdog/010583-21unixbench_singl19:54:290
96150940irq/14-ide014295-21df23:44:280
261550890irq/11-eth013990-21ls23:44:010
1499840watchdog/023660-21open_inodes20:39:170
28873988313cyclictest19974-21cstates20:24:430
1499830watchdog/018591-21nfs_client22:09:330
28873988113cyclictest9109-21nfs_client19:49:280
1499810watchdog/020528-21munin-node00:04:380
28873988014cyclictest1221-21if_err_eth022:59:390
1499800watchdog/031386-21egrep21:04:290
28873987915cyclictest31693-21munin-node22:54:240
28873987912cyclictest28105-21munin-node20:54:190
28873987912cyclictest18594-21munin-node23:59:370
1499790watchdog/030558-21latency_hist19:14:010
28873987813cyclictest11158-21munin-node23:34:140
28873987812cyclictest29621-21mailstats20:59:140
582027711sleep05890-21df19:39:210
28873987713cyclictest8232-21kernelversion21:34:360
28873987713cyclictest32571-21nfs_client19:19:320
28873987713cyclictest17080-21nfs_client22:04:270
28873987712cyclictest17906-21cstates23:54:470
28873987613cyclictest26036-21nfs_client22:34:350
28873987613cyclictest19606-21munin-node22:14:280
28873987612cyclictest3782-21df23:09:260
1499760watchdog/026515-21sensors_fan00:24:380
28873987512cyclictest21385-21cpu22:19:260
28873987512cyclictest14645-21munin-node20:09:210
1499750watchdog/010948-21df_inode21:44:290
28873987414cyclictest25302-21df20:44:260
1499740watchdog/08088-21seq19:45:170
1499740watchdog/024648-21mailstats00:19:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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