> And rw locking is much better for concurrency, so > we might be able to hold it over the whole bitmap search rather than > taking it and dropping it at each window advance.
rw locks only help if readers are 10x more common than writers generally speaking. They are quite expensive locks, so they really should be used with the utmost care. (if you have really long hold times the dynamics are different, but if you have really long hold times your latency sucks too and wasn't that what this thread was trying to fix?) - 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/
