Cisco Bug: CSCum78607 - once in every 10 minutes, VSM CPU usage goes to 50% ( process hwclock )
Last Modified
Mar 20, 2018
Products (1)
- Cisco Nexus 1000V Switch for VMware vSphere
Known Affected Releases
5.2(1)SV3(1.0.151) 5.2(1)SV3(1.0.51)
Description (partial)
Symptom: VSM CPU spikes every 11-12 minutes 5 1 1 5 5 1 15 5 1 5 529230199211418119217249211819310216238118431210215248319426 100 90 80 70 60 * 50 * * * * * * 40 # # # # # # 30 # # # # # # 20 # * # # # # # 10 # * * ** # * * * #* ** * *# * * * # * * * #* * 0....5....1....1....2....2....3....3....4....4....5....5.... 0 5 0 5 0 5 0 5 0 5 CPU% per minute (last 60 minutes) * = maximum CPU% # = average CPU% Conditions: 'show processes cpu' would show that 'hwclock' is responsible for hogging the CPU PID Runtime(ms) Invoked uSecs 1Sec Process ----- ----------- -------- ----- ------ ----------- 28220 29275 1862 15722 49.0% hwclock 1 7712 6124 1259 0.0% init Note: This happens for a very short time and it maybe a bit difficult to catch it from the 'show processes cpu' output
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