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2025-11-11 - 18:36
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot7.osadl.org (updated Tue Nov 11, 2025 12:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15342418214sleep031185-21kworker/0:006:53:390
14991360watchdog/03755-21mailstats12:13:400
14991280watchdog/013744-21latency09:14:110
14991240watchdog/02996-21runrttasks09:25:190
14991230watchdog/018178-21kernelversion07:44:030
14991210watchdog/028471-21idleruntime11:48:390
14991210watchdog/027006-21df08:13:470
31484212011sleep031490-21mailstats08:28:370
14991200watchdog/020947-21df_inode09:38:510
14991180watchdog/015295-21munin-node11:04:110
14991160watchdog/019356-21aten2.4_r3power11:18:470
838501080irq/14-ide06646-21df07:08:450
838501040irq/14-ide09871-21munin-node09:03:560
838501000irq/14-ide011461-21cpu07:23:510
2435501000irq/11-eth013859-21aten2.4-expect10:59:160
2435501000irq/11-eth012413-21runrttasks09:09:540
243550970irq/11-eth012747-21seq10:57:500
1499940watchdog/025663-21munin-node08:08:510
1499940watchdog/015672-21chrt07:36:230
1499920watchdog/031112sleep010:24:470
1499920watchdog/022856-21aten2.4_r3power07:59:030
3173989112cyclictest548-21munin-node12:03:370
243550900irq/11-eth014512-21mailstats09:18:410
1499890watchdog/06148-21stty08:49:110
3173988812cyclictest4979-21which07:03:380
243550870irq/11-eth027310-21nfs_client11:43:580
243550870irq/11-eth025997-21sshd09:54:050
1499870watchdog/026846-21munin-node09:58:430
1499870watchdog/021558-21aten2.4_r3power11:24:110
1499860watchdog/0222182sleep011:28:350
3173988513cyclictest745-21munin-node10:18:460
1499850watchdog/04481-21munin-node10:29:110
1499840watchdog/024297-21nfs_client09:48:590
1499840watchdog/019216-21cat09:33:390
3173988214cyclictest9635-21munin-node07:18:520
1499820watchdog/08822-21nfs_client10:43:590
1499820watchdog/025531-21aten2.4_r3power11:38:470
3173988127cyclictest2996-21runrttasks10:37:200
3173988113cyclictest10385-21nfs_client10:48:570
3100528111sleep02781-21snmpd11:55:340
1499810watchdog/01705-21runrttasks08:36:070
3173988014cyclictest8841-21nfs_client08:58:580
3173988012cyclictest24407-21aten2.4-expect08:04:030
1499800watchdog/0309-21chrt10:17:270
3173987913cyclictest29943-21munin-node10:08:530
3173987913cyclictest16661-21munin-node11:09:020
3173987912cyclictest6790-21munin-node08:53:510
3173987912cyclictest2142-21mailstats08:38:370
3173987912cyclictest19137-21munin-node07:49:100
1499790watchdog/02996-21runrttasks07:43:030
3173987813cyclictest4515-21missed_timers08:44:100
3173987813cyclictest29210-21missed_timers08:19:110
3173987812cyclictest5770-21nfs_client12:18:580
3173987812cyclictest32023-21nfs_client11:58:580
3173987812cyclictest29931-21munin-node08:23:380
3173987812cyclictest22183-21latency_hist09:43:280
3173987713cyclictest29734-21seq10:07:550
3173987712cyclictest8764-21aten2.4_r3power07:14:050
3173987712cyclictest21040-21unixbench_singl07:53:520
214927711sleep02178-21basename12:08:410
3173987612cyclictest2996-21runrttasks07:31:110
3173987612cyclictest24226-21nfs_client11:33:570
3173987514cyclictest3900-21nfs_client06:58:570
3173987512cyclictest6808-21open_inodes10:38:390
3173987512cyclictest17602-21mailstats11:13:380
1748227512sleep017548-21latency_hist09:28:290
3173987412cyclictest6924-21df12:23:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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