Messages in this thread | | | Date | Wed, 31 Oct 2007 18:56:24 -0700 | From | "bc Wong (chimwong)" <> | Subject | filp usage when cpu busy |
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Hi,
With 2.6.16 x86_64 on a 4 core machine, I noticed that the filp usage (according to /proc/slabinfo) shoots up and keeps on increasing sharply when one of the CPUs is (1) locked up, or (2) very busy doing a lot of printk()'s with KERN_EMERG.
In the case of (1), it's permanent until it runs out of memory eventually. For (2), it's temporary; filp count comes back down when the printk()'s are done.
I can't think of any relationship between a busy/ locked-up CPU and filp count. The system is still functional. New short-lived processes kept being created, but the overall number of processes is stable.
Does anyone know why filp count would go up like that?
Thanks, bc - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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