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2025-11-16 - 23:27
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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 Sun Nov 16, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11949220426,53sleep00-21swapper/007:08:500
121499917027,125cyclictest12934-21seq11:22:100
12149991698,108cyclictest2938-21apt-get08:40:360
12149991656,102cyclictest18358-21apt-get07:37:100
12149991639,98cyclictest23176-21fw_forwarded_lo09:55:310
12149991638,111cyclictest27004-21apt-get12:17:070
121499916330,115cyclictest10250irq/56-4a10000008:19:500
12149991595,132cyclictest28251-21iwlist08:10:300
121499915927,111cyclictest792-21haveged11:00:050
121499915911,99cyclictest15628-21users11:30:510
121499915910,129cyclictest19450-21df_inode09:40:420
12149991579,109cyclictest22378-21munin-run12:00:020
12149991578,129cyclictest1424-21nginx10:16:270
121499915737,103cyclictest10250irq/56-4a10000012:21:480
121499915733,107cyclictest10250irq/56-4a10000012:00:390
121499915725,112cyclictest1356-21snmpd08:46:310
121499915724,117cyclictest760-21systemd-journal11:27:140
12149991569,128cyclictest25736-21fw_forwarded_lo08:00:290
12149991569,110cyclictest27063-21ntp_states10:10:410
12149991567,127cyclictest1424-21nginx08:25:580
12149991558,109cyclictest1356-21snmpd12:07:200
12149991555,90cyclictest13315-21apt-get09:22:100
121499915528,106cyclictest1356-21snmpd09:10:050
121499915522,117cyclictest24499-21fw_conntrack07:55:400
12149991548,92cyclictest25201-21diskstats12:10:240
12149991547,102cyclictest31471-21fw_conntrack12:35:270
121499915434,101cyclictest0-21swapper/007:10:440
121499915420,112cyclictest6172-21fw_conntrack08:50:250
12149991536,91cyclictest933-21ntp_states08:30:420
12149991536,109cyclictest11655-21http11:20:050
121499915325,111cyclictest13346-21http09:20:060
12149991528,89cyclictest16192-21df_inode07:25:210
12149991527,90cyclictest13874-21sh07:15:400
12149991527,127cyclictest23740-21http07:55:030
12149991527,124cyclictest1356-21snmpd07:41:120
12149991526,126cyclictest3409-21ntp_states10:45:420
121499915044,85cyclictest10250irq/56-4a10000011:37:130
121499915037,94cyclictest4245-21seq10:50:070
121499915037,102cyclictest15667-21seq09:25:480
12149991498,118cyclictest30302-21runrttasks12:30:360
12149991497,88cyclictest20846-21ntp_states09:45:410
12149991497,126cyclictest1372-21lldpd11:45:410
121499914935,102cyclictest760-21systemd-journal10:00:500
121499914923,109cyclictest10250irq/56-4a10000007:49:460
12149991489,95cyclictest20385-21ntp_states11:50:380
12149991489,90cyclictest2024-21diskstats08:35:270
12149991488,103cyclictest1964-21df10:40:200
121499914843,93cyclictest30997-21/usr/sbin/munin10:25:500
12149991478,94cyclictest31878-21df10:30:210
12149991478,102cyclictest25552-21wget10:05:160
121499914744,90cyclictest18422-21runrttasks09:36:160
121499914734,101cyclictest10054-21ntpq09:05:380
121499914719,112cyclictest1424-21nginx09:01:030
12149991468,86cyclictest6988-21fw_conntrack11:00:260
121499914619,106cyclictest31620-21latency_hist08:25:030
121499914614,112cyclictest1356-21snmpd11:40:480
121499914611,119cyclictest1424-21nginx10:36:290
121499914524,100cyclictest16967-21sshd09:31:030
12149991448,102cyclictest22144-21ps09:50:460
12149991446,101cyclictest9489-21chrt11:10:300
121499914428,105cyclictest8303-21sh09:00:010
12149991428,122cyclictest1356-21snmpd10:21:540
12149991428,115cyclictest29877-21chrt12:30:020
12149991427,116cyclictest8243-21runrttasks11:05:300
12149991417,123cyclictest1336-21runrttasks07:30:190
12149991407,113cyclictest27832-21sshd08:09:500
12149991376,119cyclictest1356-21snmpd07:20:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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