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Date/Time: Thu, 03 Jul 2025 09:24:39 +0000



Post From: Sierra Chart Mac OS version

[2021-01-14 07:21:55]
ganz - Posts: 1048
fyi.

CSV DB 1M lines

the task is to parse and to store next line to do some stats then

same i5 based HW
same clang 10
same code for C ver and C++ no STL ver

clang -O3 / clang++ -O3

macOS 10.13
pure C ver takes 467 ms to finish
C++ no STL ver takes 1170 ms to finish

Fedora 32
pure C ver takes 295 ms to finish
C++ no STL ver takes 307 ms to finish


macOS 10.13
XCode 10.1

ObjC using NSString * / NSArray * takes 2580 ms to finish
Date Time Of Last Edit: 2021-01-14 07:27:59