Description of problem:
compare to RH AS 2.1 the performance of snprintf is really 
unacceptable in RHEL3(RHEL-U2 has the same problem)

Version-Release number of selected component (if applicable):
RHEL3 U2 
KERNEL 2.4.21-15.EL
glibc-2.3.2-95.20

How reproducible:
a simple testing program
---------------sprintf.c-------------------
#include "stdio.h"
#include "unistd.h"
#include "sys/time.h"


unsigned int GetTickCount()
{
        struct timespec tp;
        unsigned int tt;
        clock_gettime(&tp);
        tt = tp.tv_sec*1000+tp.tv_nsec/1000000;
        return(tt);
}
int clock_gettime( struct timespec *tp)
{
        struct timeval tv;
        gettimeofday(&tv, NULL);
        tp->tv_sec = tv.tv_sec;
        tp->tv_nsec = tv.tv_usec*1000;
        return 0;
}



main(){
        char buf[1024];
        int x=234234;
        unsigned int count1,count2,count3;
        int i;

        count1=GetTickCount();
        for (i=0;i<1000000;i++)
        sprintf
(buf,"sfsdfasdfasdfasdfas;ja;sdjf;lakjsdfkasfkasasdofas;fw.nxzvohpowsy
erqnwoirhasknfasdfhoaudfoizxcvnfasdfasfasdfasdfasdfasdf%d",x);

        count2=GetTickCount();
        count3=count2-count1;

        printf("%u msec used\n",count3);
}

---------------sprintf.c-------------------
Steps to Reproduce:
compile with gcc or intel's icc

results:
on RH AS 2.1 the result is 1395 msec
but on RHEL3 & RHEL3-U2 the result is 5243 msec

on RH AS 2.1 if compile the testing code with -static ( static link 
the glibc-2.2.4-29.2 ) , and move the binary to RHEL3 , the result 
will be 1385 msec which seems ok.




Additional info:

both RH AS2.1 & RHEL3(RHEL3-U2) running on hp rx26000 (2x1.5GHz 
Itanium2 )