mysql - when do i need a larger bulk_insert_buffer_size -


i uses "load data ..." load large datas mysql, , set key_buffer_size large size (32g). , now, find inserting not fast assume, , set bulk_insert_buffer_size 32m.

i uses mysqltuner.pl , some-like scripts find out if need change value of variables, how can decide need larger bulk_insert_buffer_size? or, can find out how size mysql used?

btw, in doc, says that: "this variable limits size of cache tree in bytes per thread". if uses 10 connections inserting, take 10*bulk_insert_buffer_size memory ?


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