| Re: io-waits / openvz / network [message #34321 is a reply to message #34314] |
Tue, 23 December 2008 21:08  |
piavlo
Messages: 159
Registered: January 2007
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Senior Member |
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Regarding the /proc/interrupts thing I've compared it with
non openvz kernels and they also have about the same high amplitude high number interrupts as my openvz systems.
Also If yo use MSI then you i'll see that all cpus are involved
equaly in handling interrupts,meaning you have 2.6.24 ovz kernel, since with 2.6.18 ovz even with MSI
enabled in the kernel most net interrupts are handled by one cpu using APIC (probaly only more recent kernels wich have CONFIG_ARCH_SUPPORTS_MSI fully utilze the MSI)
Also try online monitoring of iowait with
also have alook at iostat to make sure that iowait is not due to disk io.
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