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2021-11-28 - 00:42

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 50 highest latencies:
System rack3slot7.osadl.org (updated Sat Nov 27, 2021 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140120ksoftirqd/05583-21kworker/0:006:55:250
14991340watchdog/017322-21sendmail_mailtr10:30:210
14991340watchdog/01292-21munin-node11:25:330
14991310watchdog/024795-21munin-node10:55:250
14991280watchdog/014782-21munin-node12:10:370
14991260watchdog/017016-21df08:40:330
14991240watchdog/03353-21runrttasks08:59:490
14991240watchdog/029791-21nfs_client11:10:370
14991220watchdog/07557-21latency09:55:490
2420501130irq/11-eth0412-21cpuspeed11:20:410
2420501010irq/11-eth04322-21munin-node11:35:440
807501000irq/14-ide05043-21df08:00:320
2420501000irq/11-eth032528-21missed_timers09:30:450
2420501000irq/11-eth017172-21seq12:16:180
14991000watchdog/017053-21runrttasks10:29:090
80750990irq/14-ide03266-21seq07:55:090
1499990watchdog/09836-21munin-node10:05:490
1499990watchdog/03941-21runrttasks11:33:010
1499990watchdog/011464-21sensors_temp10:10:250
242050980irq/11-eth02068-21runrttasks09:39:020
1499960watchdog/031640-21runrttasks11:16:010
1499960watchdog/025083-21aten_r3power_en09:05:450
80750950irq/14-ide08547-21df10:00:310
242050950irq/11-eth014406-21nfs_client08:30:400
1499940watchdog/03505-21runrttasks09:43:210
1499920watchdog/020019-21runrttasks07:01:090
1499910watchdog/029348-21vmstat09:20:370
18894988912cyclictest3353-21runrttasks07:30:300
1499890watchdog/023973-21egrep07:16:130
1499880watchdog/022771-21needreboot07:11:250
1499870watchdog/0227022sleep010:46:210
18894988612cyclictest18347-21munin-node08:45:370
1499860watchdog/06605-21aten_r3power_po11:40:450
1499850watchdog/019328-21nfs_client10:35:370
242050840irq/11-eth09663-21cpu08:15:330
1499840watchdog/031988-21egrep07:40:490
80750830irq/14-ide03353-21runrttasks07:27:490
242050830irq/11-eth026527-21latency_hist07:25:100
18894988312cyclictest19996-21df08:50:290
18894988312cyclictest14351-21open_inodes10:20:210
1499830watchdog/021076-21forks07:05:410
18894988213cyclictest7799-21latency_hist08:10:110
1499820watchdog/020825-21nfs_client10:40:450
18894988112cyclictest3718-21df_inode07:55:380
18894988112cyclictest30668-21seq07:36:060
18894988112cyclictest13543-21ntp_offset12:05:360
1499810watchdog/016731-21idleruntime-cro08:40:090
18894988013cyclictest3353-21runrttasks09:27:530
18894987913cyclictest19244-21sendmail-mta12:25:170
18894987912cyclictest23342-21aten_r3power_cu10:50:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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