Here my quick and dirty performance test of different flavors of FLAC 1.4.0 (Win64) on my Win10, i7-1185G7 Laptop.
Using 2L-086_stereo-DXD_15.flac @ 352,8kHz / 24bit FLAC, recompressing FLAC-2-FLAC at -8
Long story short:
Case's compile: ~ 13,1 s
Xiph compile: ~ 13,9 s
GCC compile: ~ 16,0 s
Rarewares Intel 19 compile: ~ 23,8 s
NetRanger's recent CLANG15: ~ 26,8 s
PS C:\TEMP\FLAC14> Measure-Command { .\flac140case.exe -8 2L-086_stereo-DXD_15.flac -f -o 2L-086_stereo-DXD_154.flac.140case.flac | Out-Default }
flac 1.4.0
Copyright (C) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation
flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. Type `flac' for details.
2L-086_stereo-DXD_15.flac: wrote 437376780 bytes, ratio=0,976
Days : 0
Hours : 0
Minutes : 0
Seconds : 13
Milliseconds : 181
Ticks : 131815177
TotalDays : 0,000152563862268519
TotalHours : 0,00366153269444444
TotalMinutes : 0,219691961666667
TotalSeconds : 13,1815177
TotalMilliseconds : 13181,5177
PS C:\TEMP\FLAC14> Measure-Command { .\flac140xiph.exe -8 2L-086_stereo-DXD_15.flac -f -o 2L-086_stereo-DXD_154.flac.140xiph.flac | Out-Default }
flac 1.4.0
Copyright (C) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation
flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. Type `flac' for details.
2L-086_stereo-DXD_15.flac: wrote 437376780 bytes, ratio=0,976
Days : 0
Hours : 0
Minutes : 0
Seconds : 13
Milliseconds : 944
Ticks : 139447664
TotalDays : 0,000161397759259259
TotalHours : 0,00387354622222222
TotalMinutes : 0,232412773333333
TotalSeconds : 13,9447664
TotalMilliseconds : 13944,7664
PS C:\TEMP\FLAC14> Measure-Command { .\flac140clang.exe -8 2L-086_stereo-DXD_15.flac -f -o 2L-086_stereo-DXD_154.flac.140clang.flac | Out-Default }
flac 1.4.0
Copyright (C) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation
flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. Type `flac' for details.
2L-086_stereo-DXD_15.flac: wrote 437376784 bytes, ratio=0,976
Days : 0
Hours : 0
Minutes : 0
Seconds : 26
Milliseconds : 865
Ticks : 268651043
TotalDays : 0,000310938707175926
TotalHours : 0,00746252897222222
TotalMinutes : 0,447751738333333
TotalSeconds : 26,8651043
TotalMilliseconds : 26865,1043
PS C:\TEMP\FLAC14> Measure-Command { .\flac140gcc.exe -8 2L-086_stereo-DXD_15.flac -f -o 2L-086_stereo-DXD_154.flac.140gcc.flac | Out-Default }
flac 1.4.0
Copyright (C) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation
flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. Type `flac' for details.
2L-086_stereo-DXD_15.flac: wrote 437376780 bytes, ratio=0,976
Days : 0
Hours : 0
Minutes : 0
Seconds : 16
Milliseconds : 29
Ticks : 160290049
TotalDays : 0,000185520890046296
TotalHours : 0,00445250136111111
TotalMinutes : 0,267150081666667
TotalSeconds : 16,0290049
TotalMilliseconds : 16029,0049
PS C:\TEMP\FLAC14> Measure-Command { .\flac140rarewares.exe -8 2L-086_stereo-DXD_15.flac -f -o 2L-086_stereo-DXD_154.flac.140rarewares.flac | Out-Default }
flac 1.4.0
Copyright (C) 2000-2009 Josh Coalson, 2011-2022 Xiph.Org Foundation
flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
welcome to redistribute it under certain conditions. Type `flac' for details.
2L-086_stereo-DXD_15.flac: wrote 437376782 bytes, ratio=0,976
Days : 0
Hours : 0
Minutes : 0
Seconds : 23
Milliseconds : 880
Ticks : 238807805
TotalDays : 0,000276397922453704
TotalHours : 0,00663355013888889
TotalMinutes : 0,398013008333333
TotalSeconds : 23,8807805
TotalMilliseconds : 23880,7805
PS C:\TEMP\FLAC14>