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2026-06-20 - 00:15
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack4slot2.osadl.org (updated Fri Jun 19, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502350,0irq/46-4a10000029939-1kworker/u3:107:06:320
7450990,0irq/46-4a10000028284-21latency10:00:390
7450940,0irq/46-4a1000003512-21threads07:15:110
7450940,0irq/46-4a10000028262-21/usr/sbin/munin08:25:320
7450940,0irq/46-4a10000011346-21open_inodes10:45:430
7450930,0irq/46-4a1000007155-21grep10:34:570
7450930,0irq/46-4a1000006006-21fw_packets07:20:320
7450930,0irq/46-4a1000002496-21tune2fs11:55:220
7450930,0irq/46-4a10000016071-21runrttasks07:50:170
7450930,0irq/46-4a10000014687-21seq09:20:460
7450930,0irq/46-4a10000013896-21ls12:29:540
7450930,0irq/46-4a10000012878-21if_eth007:40:330
7450930,0irq/46-4a10000012796-21fw_forwarded_lo09:15:270
297222937,0sleep029723-21diskstats10:05:160
2971329310,0sleep029714-21diskstats11:40:200
7450920,0irq/46-4a1000004317-21irqstats12:00:370
7450920,0irq/46-4a10000026343-21/usr/sbin/munin08:20:220
7450920,0irq/46-4a10000024734-21fw_forwarded_lo11:25:240
7450920,0irq/46-4a10000023191-21cut09:45:320
7450920,0irq/46-4a10000017769-21diskstats09:30:170
7450920,0irq/46-4a10000016290-21irqstats09:25:290
7450920,0irq/46-4a10000011552-21/usr/sbin/munin07:35:540
7450920,0irq/46-4a10000010687-21aten_r4power_po09:10:060
7450910,0irq/46-4a1000008806-21sendmail-msp10:40:240
7450910,0irq/46-4a1000008647-21chrt07:28:370
7450910,0irq/46-4a1000007338-21wget09:00:090
7450910,0irq/46-4a1000005600-21aten_r4power_vo10:30:070
7450910,0irq/46-4a1000004505-21runrttasks10:25:420
7450910,0irq/46-4a10000018065-21/usr/sbin/munin07:55:330
7450910,0irq/46-4a10000017849-21fschecks_time11:05:190
7450910,0irq/46-4a10000016825-21chrt11:01:000
7450910,0irq/46-4a10000014869-21which12:30:470
4662919,0sleep0500-21grep08:40:080
1401999159,0cyclictest0-21swapper08:35:570
1401999158,0cyclictest0-21swapper10:55:460
1401999158,0cyclictest0-21swapper10:15:340
1401999156,0cyclictest0-21swapper08:50:270
7450900,0irq/46-4a1000009541-21meminfo07:30:350
7450900,0irq/46-4a1000009359-21/usr/sbin/munin09:05:240
7450900,0irq/46-4a1000008886-21/usr/sbin/munin12:15:470
7450900,0irq/46-4a1000007475-21df_inode12:10:130
7450900,0irq/46-4a1000007118-21wc12:09:570
7450900,0irq/46-4a10000032184-21users10:10:540
7450900,0irq/46-4a10000031545-21tune2fs11:45:220
7450900,0irq/46-4a10000030170-21/usr/sbin/munin08:30:490
7450900,0irq/46-4a10000026200-21sed11:30:120
7450900,0irq/46-4a10000025527-21seq09:52:130
7450900,0irq/46-4a10000025360-21users08:15:520
7450900,0irq/46-4a1000002447-21grep07:10:520
7450900,0irq/46-4a1000002293-21wc10:20:140
7450900,0irq/46-4a10000022898-21diskstats08:10:180
7450900,0irq/46-4a10000021292-21tune2fs11:15:240
7450900,0irq/46-4a10000021099-21df09:40:130
7450900,0irq/46-4a10000020486-21runrttasks08:02:440
7450900,0irq/46-4a10000019667-21interrupts11:10:280
7450900,0irq/46-4a10000019351-21cstates09:35:080
7450900,0irq/46-4a10000014404-21fschecks_count07:45:210
7450900,0irq/46-4a10000012277-21ls10:49:570
1107629010,0sleep020709-21kworker/u2:012:20:310
7450890,0irq/46-4a1000005519-21/usr/sbin/munin08:55:040
7450890,0irq/46-4a10000028490-21rt-features11:35:460
7450890,0irq/46-4a10000026523-21seq09:55:320
7450890,0irq/46-4a10000023931-21chrt11:23:100
7450890,0irq/46-4a10000021598-21ntp_states08:05:440
7450890,0irq/46-4a10000016330-21memory12:35:370
1401998957,0cyclictest0-21swapper11:50:440
7450880,0irq/46-4a1000002754-21nfs_client08:45:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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