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c15ab236d6
Currently, all filters with the same priority are linked in a doubly linked list. Every filter should have a unique handle. To make the handle unique, we need to iterate the list every time to see if the handle exists or not when inserting a new filter. It is time-consuming. For example, it takes about 5m3.169s to insert 64K rules. This patch changes cls_flower to use IDR. With this patch, it takes about 0m1.127s to insert 64K rules. The improvement is huge. But please note that in this testing, all filters share the same action. If every filter has a unique action, that is another bottleneck. Follow-up patch in this patchset addresses that. Signed-off-by: Chris Mi <chrism@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.