Optimalize structs for size (alignment by rearranging) #149
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@tgulacsi, thanks for the suggestion. That's something that could only be considered for version 5 when structure changes like these are possible without breaking backwards compatibility. So I'll keep this in mind when version 5 is being prepped. |
tgulacsi
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Object creation and release fragments memory. This is not a real memory
leak (less than 3 bytes for 100 iteration with standard malloc, and less
than 1 byte for 100 iteration with jemalloc).
To try with jemalloc:
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.1 go test -run=198 -v
ODPI-C issue: oracle/odpi#149
Closes #198
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reported a few structs that could be rearranged to become smaller.
I understand that *char and its length should be together, so maybe this rearrangement has too few gains and too big price for structs that are only have a few instances in a program, such as dpiConnCreateParams or dpiCommonCreateParams.
But may more gain more with dpiSubscrMessageTable and dpiSubscrMessage.
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