[discussion] about perf code

[vtorri]

in perf.h, 2 declarations seem unnecessary to me : lexbor_perf_frequency() and lexbor_perf_clock()

perf code is used to compute time in second of a part of code. So i would say that only lexbor_perf_in_sec() is necessary and the 2 functions above could be static in perf.c

[tcheko]

There is also some asm directive with x86 instructions in lexbor_perf_clock(). This part should be made arch specific.

[lexborisov]

@vtorri
Removed two functions, see commit.

[lexborisov]

@tcheko
Perhaps, it is worth to abandon the ASM instructions and use only the native methods in each OS.
Some like a monotonic in linux.

[vtorri]

fixed in f78290f

it remains the asm code