On Sun, Jan 04, 2015 at 10:24:16PM -0500, nick wrote: > Greetings All, > I have a few questions about the function I stated in the message for this email. > 1. What is the issues with the CPU usage for this function? At the moment it can perform up to NR_QUEUE_LEVELS (16) list_empty() calls. Which I consider too much work for a function that is called frequently. > 2. What hardware is this on ? Irrelevant. > 3. How scalable is this function in terms of NR_QUEUE_LEVELS and how many does it need to handle? Linear. NR_QUEUE_LEVELS is a compile time constant currently set to 16, and unlikely to change. - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
