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65f9f6febf
Some of traced MMIO registers are a large continuous section. These stuffed the MMIO lookup hash table and so waste lots of memory and get much lower lookup performance. Here we picked out these sections by special handling. These sections include: o Display pipe registers, total 768. o The PVINFO page, total 1024. o MCHBAR_MIRROR, total 65536. o CSR_MMIO, total 3072. So we removed 70,400 items from the hash table, and speed up guest boot time by ~500ms. v2: o add a local function find_mmio_block(). o fix comments. Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> |
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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.