Re: solo6x10: all interrupts for all cards handled by CPU0, no balancing - why?
On Fri, 30 Jan 2015 00:29:13 +0200 Andrey Utkin wrote: > The host was rebooted and got back online. > Without irqbalance daemon, all solo6x10 interrupts are still on CPU0. > See https://gist.github.com/krieger-od/d1686243c67fbe3e14a5 > Any ideas are strongly appreciated. > My understanding was that balancing happened by package, not by core, but my knowledge might be outdated... -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: solo6x10: all interrupts for all cards handled by CPU0, no balancing - why?
The host was rebooted and got back online. Without irqbalance daemon, all solo6x10 interrupts are still on CPU0. See https://gist.github.com/krieger-od/d1686243c67fbe3e14a5 Any ideas are strongly appreciated. -- Andrey Utkin -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
solo6x10: all interrupts for all cards handled by CPU0, no balancing - why?
Hi, having another "card freeze" issue with linux-next (tag next-20150128) on a server running 3 solo6110 cards. The freeze happens after 3 days or so. Much better than 30 minutes, which was the case before the recent enhancement by Krzysztof Halasa. This is Ubuntu Trusty. There's /usr/sbin/irqbalance process running. See interrupt stats here: https://gist.github.com/krieger-od/f8d99080d6fc30dad3d2 I wonder why all solo6x10 interrupts happen on CPU0, while there are 3 more cores. However, I have got an idea reading this: Irqbalance is a daemon to help balance the cpu load generated by interrupts across all of a systems cpus. Irqbalance identifies the highest volume interrupt sources, and isolates them to a single unique cpu, so that load is spread as much as possible over an entire processor set, while minimizing cache hit rates for irq handlers. Disabled irqbalance launch on boot. Rebooted, and the host got down up to now :( Any comments, except laugh? :) -- Andrey Utkin -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html