pitrou commented on code in PR #13516: URL: https://github.com/apache/arrow/pull/13516#discussion_r967023062
########## cpp/src/arrow/memory_pool.h: ########## @@ -175,6 +176,25 @@ ARROW_EXPORT Status jemalloc_memory_pool(MemoryPool** out); ARROW_EXPORT Status jemalloc_set_decay_ms(int ms); +/// \brief Get basic allocation statistics from jemalloc +/// See the MALLCTL NAMESPACE section in jemalloc project documentation for +/// available stats. +Status jemalloc_get_stat(const char* name, size_t& out); +Status jemalloc_get_stat(const char* name, uint64_t& out); + +/// \brief Get basic allocation statistics from jemalloc by passing a pointer +/// This is useful for avoiding the overhead of repeated copy calls. +Status jemalloc_get_statp(const char* name, uint64_t& out); + +/// \brief Resets the counter for bytes allocated in the calling thread to zero. +/// This affects subsequent calls to thread.peak.read, but not the values returned by +/// thread.allocated or thread.deallocated. +Status jemalloc_peak_reset(); + +/// \brief Prints summary statistics in human-readable form. See malloc_stats_print Review Comment: Apparently it would print to stderr rather than stdout? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
