The glibc default number of memory pools on 64bit systems is 8 times the
number of CPU cores. Choosing a value MALLOC_ARENA_MAX is generally a
tradeoff between performance and memory consumption. Not setting
MALLOC_ARENA_MAX gives the best performance, but may mean higher memory
use. Setting MALLOC_ARENA_MAX to “2” or “1” makes glibc use fewer
memory pools and potentially less memory, but this may reduce
performance.
#KTI-1609
Vyacheslav Gerasimov
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