Sergei Gorelkin wrote:
19.11.2014 15:16, Marco van de Voort ?????:> In our previous episode,
Mark Morgan Lloyd said:>>>> introduces a very significant performance
overhead;>>>>>> Linux also does this.>>>> On some but by no means all
platforms. I'm specifically trying to>> highlight the fact that on
SPARC, Solaris can fix alignment issues (at a>> price) but Linux doesn't
try to. I don't know to what extent there are>> comparable issues on
other platforms (in particular x86_64) for which>> both Solaris and
Linux are implemented.>> On PPC (603), Linux did, but netbsd didn't :-)
Though that is 1.9.0 times> experience and thus slightly dated.
On mips-linux, I observe no crashes when doing unaligned access with
integer instructions, but it still crashes upon unaligned access using
floating-point instructions.
Sergei
Useful to know. I've never tried this, but presumably the signal can be
trapped?
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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