[rescue] Solaris Studio
mroos at linux.ee
Sun Jul 16 14:34:06 CDT 2017
> Every single third-party packaging site says "We build 32-bit because
> most of the time it doesn't matter, and 64-bit binaries MAY be sligltly
> slower than 32-bit even on 64-bit hardware..."
I did some test on 32-bit vs 64-bit userland on 64-bit kernel, with
sparclinux. The results varied by test, by about 10-20% - sometimes one
was faster, sometimes another. No clear winner.
> Look, I don't care if a task runs 2%-3% slower. But I *REALLY* care if
> something as simple as a file copy craps out in the middle of a 4GB file
> because it can't handle a file offset larger than 2GB. If raw speed
> were the only criterion we could all run 8-bit Atari emulators.
Is that really a problem in Solaris? I saw LFS (Large File Summit?)
implemented 10-15 years ago, providing 64-bit file offsets and all the
related API on 32-bit systems, in both Linux and Solaris. See
_LARGEFILE_SOURCE and _LARGEFILE64_SOURCE defines.
Meelis Roos (mroos at linux.ee)
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