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ARROW-6994: [C++] Fix aggressive RSS inflation on macOS when jemalloc background_thread is not enabled #6100

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wesm wants to merge 3 commits into from
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ARROW-6994: [C++] Fix aggressive RSS inflation on macOS when jemalloc background_thread is not enabled #6100

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5c1b0b1
Set decay_ms to 0 if background_thread is unavailable
wesm Dec 24, 2019
c2e2f60
clang-format
wesm Dec 24, 2019
5af6c20
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pitrou Jan 6, 2020
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7 changes: 6 additions & 1 deletion cpp/src/arrow/memory_pool.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -68,10 +68,15 @@

const char* je_arrow_malloc_conf =
("oversize_threshold:0"
#ifdef USE_JEMALLOC_BACKGROUND_THREAD
",dirty_decay_ms:1000"
",muzzy_decay_ms:1000"
#ifdef USE_JEMALLOC_BACKGROUND_THREAD
",background_thread:true"
#else
// ARROW-6994: return memory immediately to the OS if the
// background_thread option isn't available
",dirty_decay_ms:0"
",muzzy_decay_ms:0"
#endif
JEMALLOC_DEBUG_OPTIONS); // NOLINT: whitespace/parens

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