[Bug libc/1005] putc() runs slower

[Uttam Pawar]

On Mon, 2005-07-11 at 11:23 -0700, Ulrich Drepper wrote:
> Uttam Pawar wrote:
> > Following the proposed patch for to fix the performance issue while
> > using putc() in single threaded application.
> 
> That's what putc_unlocked is for.
> 
Agree. But, first, it's time consuming for the users to find and replace
(assuming they have source access, resources and knowledge of glibc) all
the putc() calls they used in their application with putc_unlocked().
Second, user has to remember to change back all the putc_unlocked()
calls to putc() if he/she/they decide to make their application
multithreaded in future.

And as we know that the "glibc" is a commonly used library (re-usable
code) to avoid or minimize modification of any sort to the application
code.

Doesn't it make sense to provide this provision (think as a work around,
which is also not a big messy change to the glibc) code base.

Regards,

- Uttam