[dpdk-dev] [PATCH 21.11 0/3] eal: add memory pre-allocation from existing files
Dmitry Kozlyuk
dkozlyuk at nvidia.com
Mon Jul 5 14:49:46 CEST 2021
Hugepage allocation from the system takes time, resulting in slow
startup or sporadic delays later. Most of the time spent in kernel
is zero-filling memory for security reasons, which may be irrelevant
in a controlled environment. The bottleneck is memory access speed,
so for speeduup the amount of memory cleared must be reduced.
We propose a new EAL option --mem-file FILE1,FILE2,... to quickly
allocate dirty pages from existing files and clean it as necessary.
A new malloc_perf_autotest is provided to estimate the impact.
More details are explained in relevant patches.
Dmitry Kozlyuk (2):
eal/linux: make hugetlbfs analysis reusable
app/test: add allocator performance autotest
Viacheslav Ovsiienko (1):
eal: add memory pre-allocation from existing files
app/test/meson.build | 2 +
app/test/test_malloc_perf.c | 155 +++++++++
doc/guides/linux_gsg/linux_eal_parameters.rst | 17 +
lib/eal/common/eal_common_dynmem.c | 6 +
lib/eal/common/eal_common_options.c | 23 ++
lib/eal/common/eal_internal_cfg.h | 4 +
lib/eal/common/eal_memalloc.h | 8 +-
lib/eal/common/eal_options.h | 2 +
lib/eal/common/malloc_elem.c | 5 +
lib/eal/common/malloc_heap.h | 8 +
lib/eal/common/rte_malloc.c | 16 +-
lib/eal/include/rte_memory.h | 4 +-
lib/eal/linux/eal.c | 28 ++
lib/eal/linux/eal_hugepage_info.c | 158 ++++++---
lib/eal/linux/eal_hugepage_info.h | 39 +++
lib/eal/linux/eal_memalloc.c | 328 +++++++++++++++++-
16 files changed, 733 insertions(+), 70 deletions(-)
create mode 100644 app/test/test_malloc_perf.c
create mode 100644 lib/eal/linux/eal_hugepage_info.h
--
2.25.1
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