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2025-10-19 - 03:24
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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: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack7slot8.osadl.org (updated Sat Oct 18, 2025 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2293220824,63sleep02296-21df_inode07:05:190
3284991545,35cyclictest13578-21apt-get12:07:100
1994212020,87sleep01128-21apt-get09:11:130
1640821104,8sleep00-21swapper/008:00:500
936721095,11sleep09370-21df_inode09:40:230
2028721065,12sleep020340-21sort10:25:030
2338221054,10sleep023387-21sshd12:39:240
11438210515,11sleep010689-21apt-get11:55:380
1365921045,86sleep013687-21grep12:05:080
1447821025,86sleep014484-21latency_hist07:55:020
1574221016,84sleep015753-21sort08:00:030
92521004,11sleep01356-21snmpd09:08:230
732321006,80sleep07326-21df07:25:230
3239021005,84sleep032397-21awk11:10:430
312021005,82sleep03135-21fw_conntrack09:15:280
56312985,79sleep05632-21diskstats09:25:240
3284999841,29cyclictest10250irq/56-4a10000012:26:590
206252986,79sleep020627-21fw_forwarded_lo10:25:300
168302975,80sleep016845-21if_err_eth012:15:290
53792956,78sleep05381-21apt-get07:17:010
214222955,12sleep021425-21df08:20:210
180922956,78sleep018100-21fw_conntrack10:15:260
3284998947,27cyclictest3650irq/20-4900000008:17:300
3284998850,22cyclictest0-21swapper/011:36:380
3284998835,46cyclictest1424-21nginx10:41:580
3284998819,24cyclictest1424-21nginx08:35:420
3284998743,28cyclictest3650irq/20-4900000011:50:170
3284998736,16cyclictest21857-21basename10:30:140
3284998620,15cyclictest111rcu_preempt08:25:430
323192866,69sleep032328-21munin-run09:05:010
311282866,70sleep031134-21ntp_states11:05:400
262152865,13sleep00-21swapper/010:45:470
3284998533,17cyclictest10250irq/56-4a10000011:42:100
3284998444,23cyclictest0-21swapper/011:26:360
3284998438,14cyclictest10250irq/56-4a10000007:45:080
3284998431,17cyclictest186382chrt08:10:340
328499836,14cyclictest10250irq/56-4a10000009:46:240
3284998346,26cyclictest0-21swapper/008:05:130
3284998336,32cyclictest1765-21runrttasks11:18:320
3284998235,15cyclictest10250irq/56-4a10000011:01:220
3284998215,31cyclictest0-21swapper/010:06:340
3284998151,15cyclictest10150irq/55-4a10000007:10:280
3284998140,27cyclictest3650irq/20-4900000012:10:240
3284998133,14cyclictest10250irq/56-4a10000012:22:170
3284998050,20cyclictest31062-21cron09:00:010
328499797,14cyclictest48772sleep011:30:320
3284997947,15cyclictest10150irq/55-4a10000011:45:200
3284997942,27cyclictest0-21swapper/007:40:260
3284997940,24cyclictest101ktimersoftd/007:30:170
3284997922,25cyclictest10250irq/56-4a10000010:56:190
3284997912,16cyclictest27764-21runrttasks08:45:340
3284997842,19cyclictest10150irq/55-4a10000010:12:430
3284997841,26cyclictest0-21swapper/008:50:130
328499777,16cyclictest23317-21wget10:35:170
3284997760,10cyclictest101ktimersoftd/008:30:200
3284997758,11cyclictest101ktimersoftd/012:30:450
3284997758,11cyclictest101ktimersoftd/009:55:240
3284997748,13cyclictest10150irq/55-4a10000010:50:250
3284997746,14cyclictest10150irq/55-4a10000008:40:390
328499767,18cyclictest8122-21diskstats09:35:290
3284997659,10cyclictest101ktimersoftd/009:50:170
3284997657,12cyclictest101ktimersoftd/007:35:090
3284997648,13cyclictest10150irq/55-4a10000009:25:010
3284997634,28cyclictest3650irq/20-4900000011:20:250
3284997545,13cyclictest10150irq/55-4a10000010:00:200
3284997344,21cyclictest61402sleep007:20:310
3284997152,11cyclictest101ktimersoftd/009:30:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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