thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-24 16:42:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

jemalloc: disable percpu_arena on non-linux (not supported anyway)

Browse Source 
And since it does not supported it produces the following warning:
  <jemalloc>: No getcpu support: percpu_arena:percpu
  <jemalloc>: perCPU arena getcpu() not available. Setting narenas to 8.

However it is uses narenas=ncpu instead of default narenas=ncpu*4
This commit is contained in:
Azat Khuzhin 2020-06-23 11:13:36 +03:00
parent 5b5ba93523
commit c230d76cb9
1 changed files with 13 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
contrib/jemalloc-cmake/CMakeLists.txt
View File

@ -13,15 +13,19 @@ if (ENABLE_JEMALLOC)
option (USE_INTERNAL_JEMALLOC "Use internal jemalloc library" ${NOT_UNBUNDLED})
if (USE_INTERNAL_JEMALLOC)
# ThreadPool select job randomly, and there can be some threads that had been
# performed some memory heavy task before and will be inactive for some time,
# but until it will became active again, the memory will not be freed since by
# default each thread has it's own arena, but there should be not more then
# 4*CPU arenas (see opt.nareans description).
#
# By enabling percpu_arena number of arenas limited to number of CPUs and hence
# this problem should go away.
set (JEMALLOC_CONFIG_MALLOC_CONF "percpu_arena:percpu,oversize_threshold:0")
if (OS_LINUX)
# ThreadPool select job randomly, and there can be some threads that had been
# performed some memory heavy task before and will be inactive for some time,
# but until it will became active again, the memory will not be freed since by
# default each thread has it's own arena, but there should be not more then
# 4*CPU arenas (see opt.nareans description).
#
# By enabling percpu_arena number of arenas limited to number of CPUs and hence
# this problem should go away.
set (JEMALLOC_CONFIG_MALLOC_CONF "percpu_arena:percpu,oversize_threshold:0")
else()
set (JEMALLOC_CONFIG_MALLOC_CONF "oversize_threshold:0")
endif()
# CACHE variable is empty, to allow changing defaults without necessity
# to purge cache
set (JEMALLOC_CONFIG_MALLOC_CONF_OVERRIDE "" CACHE STRING "Change default configuration string of JEMalloc" )