Re: horrible disk thorughput on itanium

[Richard Gooch]

Andi Kleen writes:
> [e-mail] (Linus Torvalds) writes:
> > 
> > "putc()" is a standard function.  If it sucks, let's get it fixed.  And
> > instead of changing bonnie, how about pinging the _real_ people who
> > write sucky code?
> 
> It is easy to fix. Just do #define putc putc_unlocked
> There is just a slight problem: it'll fail if your application is threaded
> and wants to use the same FILE from multiple threads.
> 
> It is a common problem on all OS that eventually got threadsafe stdio. 
> I bet putc sucks on Solaris too.

This kind of thing should be covered by _REENTRANT. If you don't
compile with _REENTRANT (the default), then putc() should be the
unlocked version.

				Regards,

					Richard....
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