Messages in this thread | | | Date | Mon, 22 Aug 2005 15:38:38 -0700 | From | Andrew Morton <> | Subject | Re: CONFIG_PRINTK_TIME woes |
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tony.luck@intel.com wrote: > > >How fast is printk? I haven't looked. > > > >ie: if you do back-to-back printk's, what's the timestamp increment? > > On ia64 it looks like about 4-5 usec increment for back-to-back > printk (with no serial console configured, and dmesg -n to turn > off messages to the VGA console). >
Ah, thanks. Presumably it'll be considerably longer with %d's and %s's in there. But still, ~10 usecs is good resolution for I/O operations. - 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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