Messages in this thread | | | From | Roman Gushchin <> | Subject | [PATCH 0/3] vmalloc enhancements | Date | Mon, 25 Feb 2019 12:30:34 -0800 |
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The patchset contains few changes to the vmalloc code, which are leading to some performance gains and code simplification.
Also, it exports a number of pages, used by vmalloc(), in /proc/meminfo.
Patch (1) removes some redundancy on __vunmap(). Patch (2) separates memory allocation and data initialization in alloc_vmap_area() Patch (3) adds vmalloc counter to /proc/meminfo.
v3->v2: - switched back to atomic after more accurate perf measurements: no visible perf difference - added perf stacktraces in commmit message of (1)
v2->v1: - rebased on top of current mm tree - switch from atomic to percpu vmalloc page counter
RFC->v1: - removed bogus empty lines (suggested by Matthew Wilcox) - made nr_vmalloc_pages static (suggested by Matthew Wilcox) - dropped patch 3 from RFC patchset, will post later with some other changes - dropped RFC
Roman Gushchin (3): mm: refactor __vunmap() to avoid duplicated call to find_vm_area() mm: separate memory allocation and actual work in alloc_vmap_area() mm: show number of vmalloc pages in /proc/meminfo
fs/proc/meminfo.c | 2 +- include/linux/vmalloc.h | 2 + mm/vmalloc.c | 107 ++++++++++++++++++++++++++-------------- 3 files changed, 73 insertions(+), 38 deletions(-)
-- 2.20.1
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