Recently, the log10 and powf functions of math.h are needed in the project, but CPU is a bit unbearable. Our data is floating-point, so it's troublesome.

recently, the log10 and powf functions in math.h are needed in the project, but CPU is a bit unbearable. Our data are all floating-point, so it is troublesome to find exponents and logarithms. If you want to optimize, the optimization effect is better than the library functions in math.h

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C
May.25,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7b2a15-261ca.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b2a15-261ca.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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