I have a virtual machine that's using ip_tables to set up some connection forwarding. According to top, sar and /proc/stat, I'm > 99% idle. However, perf says I'm only about 72% idle, with the rest all accounted for by swapper in __do_softirq and various network related functions, most involving VMXnet 3, since that's the network driver I'm using.
VMware's own performance monitoring roughly corresponds to what perf is saying: about 25% of cpu being used. Is there some way to monitor the actual amount of CPU being used, that includes time spent in network drivers, servicing soft irqs and all like that? If there's a better mailing list for this topic, I'm sorry for the noise and please let me know where I should post my question. Thanks, Martin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
